Stability of One-Step Spray-on Splint for Lower Extremity Fractures During Splinting, MEDEVAC, and Impact.

INTRODUCTION: Military transport can induce whole-body vibrations, and combat almost always involves high impact between lower extremities and the ground. Therefore, robust splinting technology is necessary for lower extremity fractures in these settings. Our team compared a novel one-step spray-on foam splint (FastCast) to the current military standard structured aluminum malleable (SAM) splint. MATERIALS AND METHODS: Ten cadaveric specimens were subjected to complete tibia/fibula osteotomy. Specimens were fitted with custom accelerometer and gyroscope sensors superior and inferior to the fracture line. Each specimen underwent fracture and splinting from a standard of care SAM splint and an experimental FastCast spray foam splint in a randomized order. Each specimen was manually transported to an ambulance and then released from a 1 meter height to simulate impact. The custom sensors recorded accelerations and rotations throughout each event. Repeated-measures Friedman tests were used to assess differences between splint method within each event and between sensors within each splint method. RESULTS: During splinting, overall summation of change and difference of change between sensors for accelerations and rotations were greater for SAM splints than FastCast across all axes (P ≤ 0.03). During transport, the range of acceleration along the linear superior/inferior axis was greater for SAM splint than FastCast (P = 0.02), as was the range of rotation along the transverse plane (P < 0.01). On impact, the summation of change observed was greater for SAM splint than FastCast with respect to acceleration and rotation on the posterior/anterior and superior/inferior axes (P ≤ 0.03), and the cumulative difference between superior and inferior sensors was greater for SAM than FastCast with respect to anterior-axis rotation (P < 0.05). CONCLUSION: FastCast maintains stabilization of fractured lower extremities during transport and impacts to a significantly greater extent than SAM splints. Therefore, FastCast can potentially reduce the risk of fracture complications following physical stressors associated with combat and extraction.

Chronic Achilles Tendon Avulsion Repair: Central Third Fascia Slide Technique with Flexor Hallucis Longus Transfer.

Background: Chronic Achilles tendon defects are commonly associated with substantial impairment in gait and push-off strength, leading to decreased function1. These injuries cause a unique surgical dilemma, with no consensus surgical reconstruction technique for >6-cm gaps3. There are a multitude of surgical reconstruction techniques that rely on gap size as a determinant for preoperative planning1,2. The present article describes a technique for chronic Achilles tendon defects of >6 cm. The central third fascia slide (CTFS) technique with flexor hallucis longus (FHL) transfer provides adequate excursion and strength while avoiding use of allograft.2.The CTFS technique is a reconstructive technique that is utilized to treat large chronically gapped Achilles tendon tears, usually larger than 5 to 6 cm; however, recent literature has shown that intermediate gaps can be fixed with use of a combination of tendon transfers. The technique described here is a variation of the V-Y tendinoplasty and fascia turndown method in which the gastrocnemius complex fascia is slid down rather than being "turned down." This reconstructive technique, like its predecessor, restores function in damaged Achilles tendons3. Chronic gapping from a chronic Achilles tendon rupture can lead to decreased function and weakness. Patients may also experience fatigue and gait imbalance, leading to the need for surgical reconstruction to help restore functionality. Description: The CTFS technique utilizes a posterior midline incision, maintaining full-thickness flaps. A complete debridement of the degenerative Achilles tendon is performed, and the gap is measured. If the gap is >6 cm, the central third of the remaining Achilles and gastrocnemius fascia are sharply harvested. The FHL is transferred to the proximal Achilles footprint and held with use of an interference screw. The ankle is held in 15° to 25° of plantar flexion while the FHL shuttling suture is pulled plantarly and secured with a bio-interference screw. The fascial graft is then anchored to the calcaneus with use of a double-row knotless technique, maximizing osseous contact potential healing. Soft-tissue clamps are placed on the graft and on the gastrocnemius complex harvest site. The ankle is tensioned in nearly 30° of plantar flexion to account for known postoperative elongation. FiberWire (Arthrex) is utilized to secure the tension, then the remaining suture tape from the proximal insertional row is run up each side of the fascial graft in a running locking stitch, continuing proximally to close the harvest site. The use of an anchor-stay stitch helps to prevent elongation and maximizes construct strength. Alternatives: For patients who are poor surgical candidates or those with acceptable function, alternatives include nonoperative treatment and/or the use of a molded ankle foot orthosis. Most chronic Achilles tendon ruptures require surgery. Generally, a gap of <2 cm can be treated through primary repair with use of longitudinal and distally applied traction. For an Achilles gap of >2 cm but <6 cm, a V-Y gastrocnemius-lengthening procedure can utilized. Other methods such as autologous and local tendon transfers, advancement procedures, or a combination of these have been described as ways to treat gaps within this range. For gaps of >6 cm, there is insufficient literature to establish a single gold-standard reconstructive technique. Some surgeons have opted to utilize the turndown flap procedure, the FHL tendon transfer technique, or a combination of both. Rationale: The Achilles turndown flap technique can lead to the formation of scar tissue at the focal point of the turndown, a region also known as the hinge joint, and thus can perpetuate scarring of the repair site. To avoid this scarring, the central third fascia slide technique with FHL transfer is presented as a suitable reconstructive technique for chronic tendon defects of >6 cm. Expected Outcomes: Postoperatively, patients are managed according to a standard protocol. The first 2 weeks are non-weight-bearing with the foot in equinus in an L & U splint. At 2 to 4 weeks postoperatively, a walking boot with a 1.5-cm heel lift is applied, and crutches are utilized as the primary weight-bearing aid. At 4 to 6 weeks, the patient is transitioned to a 1-cm heel lift and may discontinue the use of crutches if they are able to walk without a limp. At 8 weeks, the patient may discontinue the use of the walking boot. At week 6 to 12, no heel lift is required. By approximately 12 weeks postoperatively, the patient should have regained full range of motion and should be able to walk without a limp. The patient should be able to resume activities of daily living by 3 to 4 months, with a gradual return to all physical activities by 4 to 6 months This postoperative protocol has produced favorable results. Ahmad et al. have reported the use of a similar protocol, with patients showing increased Foot and Ankle Ability Measure scores and decreased visual analog scale pain scores compared with the preoperative measurement2. Important Tips: Debride the Achilles until viable tendon is reached, then measure the defect.Tension the FHL and the fascia slide with the foot in 15° to 25° of plantar flexion.Perform a meticulous layered closure, preserving the paratenon as much as possible.Incomplete debridement may result in incompetent tissue.Incomplete closure of the fascia harvest site may predispose to seroma or hematoma formation.Not splinting for 10 to 14 days potentially predisposes the patient to wound breakdown. Acronyms and Abbreviations: CTFS = central third fascia slideFHL = flexor hallucis longusATTF = Achilles tendon turndown flapHPI = history of present illnessNWB = non-weight-bearingCAM = controlled ankle motionDVT = deep vein thrombosisMRI = Magnetic resonance imagingPMHx = past medical historyHTN = hypertensionSHx = social historyPE = physical examinationDF = dorsiflexionNVI = neurovascularly intactROM = range of motion.

Arthroscopic Assisted, Lateral Ligament Reconstruction with Suture Tape Augmentation and Knotless All Suture Anchors: A Technique Guide.

More than 30,000 ankle sprains occur each day in the United States, and the majority of ankle sprains involve the anterior talofibular ligament. Up to 30% of patients develop functional ankle instability and chronic pain after a severe ankle sprain. When nonoperative measures are unsuccessful, operative reconstruction of the lateral ankle ligaments is recommended. To further strengthen the repair, accelerate rehabilitation, and allow for a quicker return to sport, augmentation with suture tape has recently become an alternative among surgeons in the reconstruction of the lateral ankle ligaments. Moreover, the advent of knotless all-suture anchors decreases the number of knots required in the procedure and, in theory, reduces lateral soft tissue irritation and accentuates recovery after surgery. Here we present our technique for arthroscopic assisted, lateral ligament reconstruction with suture tape augmentation and knotless all suture anchors.

Modified Low-Flow Arthroscopic Sandwich Technique for Complex Osteochondral Lesions of the Talus.

Treatment of osteochondral lesions of the talus proves to be challenging given the unique anatomy of the intra-articular surface and associated complexity of larger lesions. Simple bone marrow-stimulating procedures for large complex lesions often lead to poor results with increased risk of lesion progression, refractory pain, and associated functional limitations. Other methods of osteochondral autografts or allografts often require osteotomies, bone windows, or fibrin glue, which are associated with donor pain and nonunion. Thus, for larger and cystic lesions, we report our experience using a modified low-flow arthroscopic sandwich technique consisting of autologous cancellous bone graft, followed by a viable cryopreserved cartilage fiber, cartilage allograft matrix putty.

Technique Variation in the Surgical Treatment of Lateral Ankle Instability.

INTRODUCTION: Lateral ankle sprains are the most common type of injury to the ankle and can lead to ankle instability. There are many described techniques for the surgical treatment of lateral ankle instability. The purpose of this study is to quantify the variation in surgeon technique for lateral ankle instability treatment. METHODS: Surveys were sent to 62 orthopaedic foot and ankle surgeons regarding surgical technique for the treatment of lateral ankle instability. Clinical agreement was defined as greater than 80% agreement to assess the cohesiveness of surgical methods as described by Marx et al. Results. Response rate was 49/62 (79%). There was clinical agreement for not using bone tunnels and not using metal anchors. All other factors lacked clinical agreement. A greater average number of throws and knots (4.2 for each, range 1-6 throws, range 2-12 knots) were used by surgeons that do not believe knots cause pain compared to an average of 3.9 (range, 1-6) throws and 4.0 (range, 2-15) knots by surgeons who do believe knots cause pain. The association that surgeon who believed knots do cause pain and thus used fewer knots and throws was not statistically significant (P > .05). The preferred material by surgeons in our study are as follows: nonabsorbable braided suture (26/49, 53%), suture tape (15/49, 31%), and fiber tape (4/49, 8%). Among surgeons who use absorbable suture (34/49, 69%), there was no significant difference (P > .05) between surgeons who believe knots cause pain (23/34, 68%) and those who do not (11/34, 32%). DISCUSSION AND CONCLUSION: Among this small sample of orthopaedic foot and ankle surgeons, there is wide variation in surgical technique for lateral ankle instability treatment and little agreement on the clinical standard of care. This disagreement highlights the need for comparative outcome studies in the treatment of ankle instability. LEVEL OF EVIDENCE: Level III: Retrospective cohort study.

Dorsal Cheilectomy Using Great Toe Metatarsophalangeal Joint Arthroscopy for the Treatment of Hallux Rigidus.

Great toe metatarsophalangeal joint (MTPJ) arthroscopy has been described in the literature for more than 50 years for treatment of a multitude of first MTPJ pathologies, including hallux rigidus, hallux valgus, and osteochondritis dissecans, among others. Despite this, the use of great toe MTPJ arthroscopy has not become widely used for treatment of these conditions as the result of reported difficulties with adequate visualization of the joint surface and manipulation of surrounding soft-tissue structures with the instruments available. We propose a simple technique with illustrations of the operating room setup and procedural steps to perform a dorsal cheilectomy in those with early-stage hallux rigidus using great toe MTPJ arthroscopy and a minimally invasive surgical burr in a way that is reproducible by foot and ankle surgeons.

Cervical Spinal Immobilization: A Head-to-Head Comparison of a One-Step Spray-on Foam Splint Versus Structural Aluminum Malleable Splint Immobilization.

INTRODUCTION: Cervical spine immobilization in a low-resource environment is difficult secondary to limited equipment, prolonged transportation, and secondary complications. A structural aluminum malleable (SAM) splint is commonly utilized because of its availability and multipurpose intention. A one-step spray-on foam immobilization technique (Fast Cast) has been shown to be effective in lower-extremity splinting. The aim of this study was to demonstrate the ability of the Fast Cast to effectively immobilize the cervical spine in a head-to-head comparison against the SAM splint. We hypothesized that there would be no difference in surgeon scoring between Fast Cast and SAM splints for the immobilization of the cervical spine. METHODS: This was a cadaveric experimental comparative study that compared a SAM splint versus Fast Cast for the immobilization of an unstable cervical spine. Each of the three cadaveric specimens had a corpectomy without fixation performed. A board-certified emergency medicine physician specialized in disaster medicine performed all SAM immobilizations. An orthopedic surgeon performed Fast Cast immobilizations. Each method of immobilization was done on each cadaver. Lateral fluoroscopic imaging was taken before and after immobilization and after log roll/gravity stress. Five board-certified orthopedic surgeons served as graders to independently score each splint. A 5-point Likert scale based on 10 splinting criteria (50 total points possible) was utilized to evaluate cervical spine immobilization. The lead statistical analyst was blinded to the immobilization groups. The statistical significance was assessed via a Wilcoxon signed-rank test and chi-square Fisher's exact test with significance between groups set at α < .05. Inter-rater reliability of the Likert scale results was assessed with the interclass correlation coefficient. RESULTS: Inter-rater reliability for the current Likert scale in the evaluation of cervical spine stabilization was good (interclass correlation coefficient = 0.76). For the cumulative Likert scale score, Fast Cast (32 [28-34]) exhibited a higher total score than SAM (44 [42-47]; P < .01). Likewise, Fast Cast exhibited a greater likelihood of higher Likert scores within each individual question as compared to SAM (P ≤ 0.04). In 100% of cases, raters indicated that Fast Cast passed the gravity stress examination without intrinsic loss of reduction or splinting material, whereas 33% of SAM passed (P < .01). In 100% of cases, raters indicated that Fast Cast passed the initial radiographic alignment following immobilization, whereas 66% of SAM passed (P = .04). In 100% of cases, raters indicated that Fast Cast passed radiographic alignment after the gravity stress examination, whereas 47% of SAM passed (P < .01). CONCLUSION: The Fast Cast exceeded our expectations and was shown to be rated not equivalent but superior to SAM splint immobilization for the cervical spine. This has significant clinical implications as the single-step spray-on foam is easy to transport and has multifaceted applications. It also eliminates pressure points and circumferential wrapping and obstruction to airway/vascular access while immobilizing the cervical spine and allowing for radiographic examination. Further studies are needed for human use and application.

Arthroscopic Releases and Hindfoot Fusion for Spastic Equinovarus Foot Deformities, An All-Inside Technique.

Neurologic foot contractures pose a challenging situation for orthopaedic surgeons. These deformities are long-standing problems for patients with acute brain injuries, ultimately affecting their quality of life. We report our experience with using arthroscopic assisted, minimally invasive contracture tenotomies paired with a tibio-talo-calcaneal arthrodesis to achieve improved alignment and functional reconstruction of spastic equinovarus foot deformities.

Talar Arthroscopic Reduction and Internal Fixation (TARIF): A Novel All-Inside Soft-Tissue-Preserving Technique.

Background: Talar arthroscopic reduction and internal fixation (TARIF) is an alternative approach for the operative fixation of talar fractures that may be utilized instead of more traditional open approaches such as medial, lateral, or even dual anterolateral. The TARIF approach allows for nearly anatomic fracture reduction and fixation of talar neck, body, and posterior dome fractures while minimizing the soft-tissue stripping and vascular injury associated with the standard anterolateral approach. Description: Following initial closed fracture reduction and any associated procedures, we recommend obtaining computed tomography scans of the injured ankle in order to evaluate the fracture pattern and allow for preoperative planning. Most patients can be positioned prone for this procedure, except for those with fractures associated with anterior loose bodies and those with neck fractures requiring reduction, which are both amenable to lateral positioning1. The feet are positioned off the end of the bed in a neutral position with room to plantar flex and dorsiflex the ankle freely for reduction maneuvers. Following induction of anesthesia and positioning of the patient, the fluoroscopic screen and arthroscopy equipment are positioned on the side opposite the surgeon. A mini C-arm is utilized for the fluoroscopy. The team may then proceed with preparing and draping the surgical field. The surgeon proceeds with creating posteromedial and posterolateral portals to view the fracture site. For talar neck fractures, we utilize standard posterolateral and posteromedial portals directly adjacent to the Achilles tendon at the level of the tip of the medial malleolus, which have previously been established as safe with respect to neurovascular structures4. Of note, for talar body fractures these portals are placed slightly more distal at the level of the distal fibula, allowing the screws to be placed perpendicular to the fracture site. An accessory sinus tarsi portal can be established if further reduction to correct varus is needed. The flexor hallucis longus tendon serves as a landmark throughout the case to maintain orientation. We prefer to utilize a 1.9-mm malleable arthroscopic NanoScope (Arthrex), which maximizes our view in the small subtalar space and allows for visualization over the talar dome. A shaver is then utilized to clear out the deep joint capsule and remove fracture hematoma. In our experience, after the initial primary reduction attempt by the orthopaedic trauma provider, the fracture is relatively stable and often held by an external fixator. The remaining reduction is performed with use of manipulation of the ankle in combination with an accessory sinus tarsi portal, utilizing an elevator or a small reduction tool in 1 of the posterior portals. We have also utilized percutaneous Kirschner wires to "joystick" the fragments prior to the placement of the guidewires. We then place multiple 1.1-mm guidewires under direct arthroscopic and fluoroscopic visualization, utilizing the flexor hallucis longus tendon as our safe margin to ensure that we are lateral on the posterior talar dome. This approach in turn allows us to ensure the integrity of the neurovascular structures, such as the tibial artery and nerve medially as well as the sural nerve laterally. Finally, cannulated headless compression screws are passed over the guidewire to achieve fixation. The senior author (K.D.M.) prefers fully threaded, cannulated 3.5-mm titanium headless compression screws because the cannulation allows the guidewires to be placed through the posterolateral and posteromedial portals, while the headless design allows the screws to be placed under the articular cartilage. Additionally, the use of titanium allows for improved postoperative magnetic resonance imaging quality as well as favorable biomechanics as titanium has a modulus of elasticity similar to bone. After drilling is complete, we sequentially tighten the screws by hand to prevent varus or valgus angulation. Although we have not experienced failure or a poor bite when utilizing the 3.5-mm fully threaded compression screw, we have found that the partially threaded screw can at times have a poorer bite. Additionally, we select a 3.5-mm screw rather than a larger screw-say 5.5 mm-as we have found that the larger screws do not easily pass through our portals, which are minimal in size when utilizing this approach. Throughout this process, fluoroscopy, in tandem with arthroscopy, is obtained in multiple views to ensure that fixation and orientation are appropriate and the screws are in the optimal position, off of the articular surface. If large osseous defects or collapse are encountered, an accessory anteromedial portal is utilized to add grafting material. Following confirmation of adequate fracture fixation, final arthroscopic images of the talar dome continuity, subtalar continuity, and ankle joint during range of motion are obtained. The portal sites are closed with use of 3-0 nonabsorbable sutures, and a well-padded L and U splint is applied postoperatively. Alternatives: Alternatives include the standard anterolateral approach to fixation or dual anterior approach, a medial or lateral approach, and external fixation with interval operative fixation. Rationale: TARIF is indicated for reduction of a wide variety of talar fractures, including neck, body, and posterior facet fractures, and offers the added advantage of minimizing the soft-tissue stripping and vascular injury associated with the standard anterolateral approach. Additionally, TARIF is well suited for patients with a compromised soft-tissue envelope or associated vascular injury, such as those with open-fracture pathology, because the approach avoids further disruption of these tissues. The overall aim of the procedure is to obtain adequate fracture reduction while avoiding the neurovasculature and soft-tissue envelope that would commonly be encountered anteriorly. The procedure is completed through 2 incisions, a posteromedial portal and a posterolateral portal, through which the fracture is visualized, reduced, and fixated using cannulated screws. The fixated talus is tested through its range of motion while under arthroscopy and fluoroscopy to ensure adequate fixation while preserving range of motion. Expected Outcomes: The TARIF procedure has been shown to successfully treat many complex talar fractures2. We theorize that this procedure produces equivalent outcomes when compared with the standard approaches to fracture fixation, with the added benefit of avoiding excessive soft-tissue disruption and neurovascular compromise. Our arthroscopic approach allows for direct visualization of articular injuries and reduction, with the ability to evacuate loose bodies and fracture hematoma, reducing matrix metalloproteinases (MMPs) known to cause posttraumatic ankle arthritis1,3. Multiple case series have assessed the use of this technique, showing preserved range of motion and minimal residual pain or disability, as measured with use of multiple scoring systems such as the American Orthopaedic Foot & Ankle Society Ankle-Hindfoot scale1,2. Important Tips: Immediately after accessing the ankle via the operative portals, identify the flexor hallucis longus tendon to prevent iatrogenic injury to the neurovascular bundle.Plantar flexion of the ankle while applying anterior force to the talar body often aids in reduction.Place the medial guidewire directly adjacent to the flexor hallucis tendon in order to ensure that it is medial enough.Utilize anterior-to-posterior fluoroscopic images of the foot and ankle to ensure screw placement.Directly visualize the fracture site as the screws are sequentially tightened in order to prevent malalignment.Countersink all screw heads and directly verify with arthroscopic visualization. Acronyms & Abbreviations: MVC = motor vehicle collisionXR = x-ray (radiograph)CT = computed tomographyEx-fix = external fixatorMRI = magnetic resonance imagingFT = fully threadedFHL = flexor hallucis longusAP = anteroposteriorROM = range of motionDVT = deep vein thrombosisBID = bis in die (twice daily dosing).

Closed Reduction and Percutaneous Fixation of Lisfranc Injury Using Suspensory Fixation.

Background: This closed reduction and percutaneous fixation (CRPF) technique utilizing suspensory fixation is indicated for the treatment of Lisfranc injuries with displacement or instability of the tarsometatarsal joint complex-and typically only for low-energy, purely ligamentous Lisfranc injuries. The goal of this procedure is to restore joint stability and prevent common complications of Lisfranc injuries (e.g., midfoot arch collapse and posttraumatic arthritis) while avoiding the complications and risks associated with open reduction and internal fixation (ORIF) and primary arthrodesis. We recommend performing the procedure within 10 to 14 days of the injury; otherwise, an open debridement may be necessary to address scar tissue formation. Description: We start with the patient in the supine position and perform a fluoroscopic stress examination of the joint. Next, the Lisfranc joint undergoes closed reduction, which is held in place with a clamp. Following reduction, a guidewire is drilled from the lateral border of the base of the 2nd metatarsal medially through the medial cuneiform, followed by a medial-to-lateral cannulated drill. The suspensory fixation is then passed lateral-to-medial, placing the suture button on the lateral cortex of the 2nd metatarsal base. The tape is then tensioned while a bioabsorbable interference screw is inserted to maintain tension. Alternatives: Prior studies have assessed both operative and nonoperative alternatives to CRPF with suspensory fixation for the treatment of Lisfranc injuries. Nonoperative treatment with closed reduction and cast immobilization of Lisfranc injuries is typically reserved for nondisplaced injuries; however, a number of studies have shown poor outcomes with use of this technique1-3. The 2 most common operative alternatives are ORIF and primary arthrodesis4. Rationale: CRPF with suspensory fixation offers several benefits over both traditional surgical techniques such as ORIF and primary arthrodesis, as well as over percutaneous reduction and internal fixation (PRIF) with a screw. Compared with ORIF and primary arthrodesis, a number of studies have shown that percutaneous treatment of Lisfranc injuries minimizes soft-tissue trauma and reduces the risk of postoperative complications such as wound breakdown, infection, and complex regional pain syndrome, while allowing for earlier participation in rehabilitation5-10. A systematic review of outcomes following PRIF with screw fixation also showed that percutaneous treatment of Lisfranc injuries is a safe and effective technique with good functional outcomes11. When comparing PRIF with a screw to our technique of CRPF with suspensory fixation, CRPF has the added benefit of creating a nonrigid fixation in the Lisfranc joint, which allows for increased range of motion of the medial column and improved return to activity12,13. The rigid fixation in PRIF with a screw can also lead to metal irritation, intra-articular screw fracture, and impaired mobility, which often necessitate the need for screw removal13-15. This fixation-related drawback is not present with our technique, and also avoids the need for use of a biologic substitute such as tendon grafts13. Expected Outcomes: Following CRPF with suspensory fixation, patients can expect to return to full activity at 12 to 16 weeks postoperatively. Postoperatively, patients are typically kept non-weight-bearing for 6 weeks. The operative foot is kept immobilized in a splint for the first 2 weeks, then transitioned to a boot. Between postoperative weeks 6 and 12, partial progressive weight-bearing is introduced with use of an arch support, progressing toward full weight-bearing13,16,17.For comparison, patients who underwent PRIF with screw fixation had a similar postoperative course, but almost all required screw removal at 4 to 6 months postoperatively13,16. Cho et al. retrospectively reviewed the results of 63 patients who underwent either PRIF with screw fixation (n = 32) or CRPF with a suture button (n = 31) and found that CRPF patients had significantly better American Orthopaedic Foot & Ankle Society midfoot scale scores (81 versus 74 points) and visual analog scale scores (3.1 versus 4.6 points) at 6 months postoperatively and prior to screw removal in the PRIF group (p < 0.001). There were no significant differences in these scores, radiographic outcomes, weight-bearing analysis, or complications at 1 year postoperatively. The authors concluded that both techniques provided comparable fixation stability and clinical outcomes. Of note, however, the PRIF group had 4 patients whose postoperative course was complicated by screw breakage13. Important Tips: Start with a fluoroscopic stress examination to identify all components of instability.Ensure that the reduction clamp does not interfere with or affect your guidewire path.If the joint cannot be reduced, convert to an open procedure and debride the obstruction. Acronyms and Abbreviations: ORIF = open reduction and internal fixationPRIF = percutaneous reduction and internal fixationCRPF = closed reduction and percutaneous fixationNSAID = nonsteroidal anti-inflammatory drugOR = operating roomAP = anteroposteriorCT = computed tomographyMRI = magnetic resonance imagingAOFAS = American Orthopaedic Foot & Ankle SocietyVAS = visual analog scaleROM = range of motionPT = physical therapyASA = acetyl-salicylic acid (aspirin)BID = twice dailyPRN = as needed.

Low-Flow Ankle Arthroscopy for Gunshot Wounds With Retained Intra-Articular Ballistic.

Gunshot injuries to the foot and ankle can cause unique and challenging situations for orthopaedic surgeons. The foot and ankle have limited soft-tissue coverage and highly congruent joint spaces, leading to injuries that are often intra-articular with substantial tissue loss. These injuries are often confounded by feet shod in footwear that is pulled into the path of the missile and corresponding tissue. Thus, we report our experience of using low-flow arthroscopy for extraction of retained ballistics, while irrigating and debriding the path of the missile.

Use of the External Fixator Calcaneus Pin: Using the TRIMANO to Its Full Potential.

Joint-spanning external fixation in acute ankle trauma is a means to provide temporary stability and restoration of length, alignment, and articular congruency. This allows for soft-tissue consolidation before definitive fixation to decrease the risk of wound complications. Traction is commonly used during definitive fixation to aid in fracture reduction and to maintain reduction during placement of internal hardware. Ankle arthroscopy for ankle fractures is also becoming increasingly popular to identify and treat intra-articular injury and uses traction for visual assistance and increased working space for instruments. We present a technique that uses a previously placed calcaneus external fixation pin and the TRIMANO (Arthrex, Naples, FL) external positioning arm to apply skeletal traction during arthroscopic and open definitive fixation procedures. This technique is extremely simple, can be used in both the supine and prone positions, and can be used during arthroscopic and open procedures.

Utilizing A Percutaneous Versus Open Achilles Tendon Repair Technique for Treating Acute Achilles Tendon Ruptures in Physically Active Adults: A Critically Appraised Topic.

CLINICAL SCENARIO: Acute Achilles tendon ruptures can be devastating injuries with the potential to significantly alter an individual's ability to perform functional activities. Given the rise in the incidence of acute Achilles tendon ruptures, it is important to determine whether percutaneous versus open Achilles tendon repair facilitates superior outcomes. CLINICAL QUESTION: In physically active adults with an acute Achilles tendon rupture, does performing percutaneous Achilles tendon repair result in improved outcomes compared with open Achilles tendon repair? SUMMARY OF KEY FINDINGS: Percutaneous Achilles tendon repair has similar efficacy as open Achilles tendon repair in facilitating return to activity/sport, and demonstrates improvement in short-term functional outcomes with potentially lower wound complication rates. CLINICAL BOTTOM LINE: Evidence supports the utilization of percutaneous Achilles tendon repair in physically active adult patients with acute Achilles tendon ruptures. It is important to critically review the benefits, risks, and alternatives of each treatment option based on patient characteristics. In addition, postoperative expectations should be discussed with the patient to set appropriate goals for recovery and improve overall satisfaction. STRENGTH OF RECOMMENDATION: A grade B recommendation can be made based on "fair" to "good" evidence from 2 level 2b studies and 1 Level 1b study to support the utilization of percutaneous Achilles tendon repair techniques.

Chronic Exertional Compartment Syndrome of the Lower Extremity: Diagnosis and Surgical Treatment.

Background: Chronic exertional compartment syndrome of the lower extremity is a condition that characteristically presents as recurrent anterior, posterior, and/or lateral lower-extremity pain on repetitive activity and physical exertion1. This condition is commonly seen in athletes, runners, and military personnel2. Open fasciotomy has been demonstrated to be a highly effective surgical treatment for patients with this condition who do not experience symptomatic relief after a thorough trial of nonoperative treatment3. Description: Diagnostic compartment pressure management is achieved through direct insertion of a compartment-pressure-measuring device into the anterior, lateral, and posterior compartments of the lower extremity4. Surgical treatment of the anterior and lateral compartments with use of open fasciotomy employs longitudinal proximal and distal incisions that are made on the lateral surface of the leg approximately 3 finger-breadths distal and proximal to the fibular flare, respectively, and 3 finger-breadths lateral to the tibial crest. Surgical treatment of the posterior compartments with use of open fasciotomy employs a single, mid-shaft incision made approximately 2.5 cm medial to the tibial ridge. Dissection is carried down to the deep fascia at both sites, beginning at the distal operative site. Care is taken to avoid transection of the superficial peroneal nerve at the distal anterolateral incision and saphenous vein and nerve at the medial incision. Once down to the deep fascia, a scalpel is utilized to incise the fascia. Metzenbaum scissors are then employed under the incision, spreading the scissors while sliding them over the muscles proximally and distally to release the muscular attachments from the fascia as well as to release the fascia itself3. This process is repeated in the anterior, lateral, and superficial posterior compartments through the proximal and distal incisions. In the deep posterior compartment, the fascia is released from the tibial ridge with a large Cobb elevator. Closure is achieved with deep dermal and superficial sutures. Alternatives: Nonoperative alternatives have been reported to include nonpharmacological modalities such as walking modification and shoe inserts, pharmacological therapy with nonsteroidal anti-inflammatory drugs, and physical therapy targeted at conditioning the lower extremity5. Nonoperative intervention has been demonstrated to increase endurance in select patients; however, most patients must either stop the activity associated with the compartment syndrome altogether or proceed to surgery for complete resolution of symptoms5. There are a few surgical alternatives that differ in their utilization of minimally invasive approaches versus a direct open approach6; however, all existing surgical treatments of this condition involve physical release of the fascial compartment. Rationale: Diagnostic compartment-pressure measurement is useful in confirming or ruling out the presence of this condition in patients with unclear symptoms4. Furthermore, diagnostic compartment-pressure management ensures accuracy in diagnosis and validates invasive treatment when patients desire surgical intervention. Surgical management of exertional compartment syndrome of the lower extremity is indicated in patients when nonoperative treatment has failed despite clinically notable symptoms and objectively elevated lower-extremity compartment pressures. Open fasciotomy has been postulated to prevent compression of local vasculature and effectively prevent ischemia; however, the definitive mechanism is unclear1. Expected Outcomes: Surgical treatment of chronic exertional compartment syndrome with use of open fasciotomy is highly successful in the civilian population. One study showed excellent return to activity/sport in 15 of 16 patients (25 of 26 limbs; 96%), with patients often reporting no symptoms postoperatively3. Military personnel have been reported to experience satisfactory results, with another study showing positive subjective feedback in 35 (76%) of 46 patients on long-term follow-up; however, only 19 patients (41%) were able to return to full active duty postoperatively7. Important Tips: Balloting the fascial compartment with ∼1 cc of saline solution can be helpful in determining successful placement of the pressure-measuring device at the time of needle entry.Identifying the course of the superficial peroneal nerve via physical examination can help avoid iatrogenic injury to this important superficial structure during the dissection leading to the distal fasciotomy.Deep posterior compartment release with use of open fasciotomy may not provide symptomatic relief; patients who demonstrate elevation of pressures in this specific compartment should be counseled accordingly. Acronyms & Abbreviations: ROM = range of motionSPN = superficial peroneal nerve.

Minimally Invasive Mid-Substance Achilles Tendon Repair Using the Percutaneous Achilles Repair System (PARS).

Achilles tendon ruptures commonly occur in physically active individuals and drastically alter the ability to perform recreational activities1,2. Many patients want to continue participating in recreational activities, which can be facilitated by operatively treating the injury in a timely fashion, maximizing their functional recovery. The Percutaneous Achilles Repair System (PARS) Jig (Arthrex) can be utilized in patients with acute mid-substance Achilles tendon ruptures3,4. Description: Begin by positioning the patient prone with a thigh tourniquet on the operative side. Mark a 3-cm transverse incision 1 cm distal to the proximal Achilles stump and make the incision, taking care to protect the sural nerve laterally. Next, create a transverse paratenon incision and bluntly dissect it from the Achilles circumferentially. After gaining access to the proximal Achilles stump, clamp it with an Allis clamp and insert the PARS Jig between the Achilles tendon and paratenon, sliding it proximally to the myotendinous junction. To secure the jig to the proximal Achilles tendon, insert a guide pin into the jig position-1 hole. To pass sutures through the Achilles tendon, insert pins with their respective sutures into positions 2 through 5 and insert the FiberTape suture (Arthrex) in position 1. Remove the jig from the transverse incision, pulling the suture ends out of the incision. Once they are out, reorient the sutures on the medial and lateral sides to match their positions when initially placed. On both sides, wrap the blue suture around the 2 striped green-and-white sutures twice, and pull the blue suture through the looped green-and-white suture on the ipsilateral side. After doing that, fold the blue suture on itself to create a shuttling suture with the green-and-white suture. Next, pull on the medial non-looped green-and-white suture until it has been pulled out medially, and repeat that with the lateral non-looped green-and-white suture until it has been pulled out laterally, to create a locking stitch. Group the medial sutures together and the lateral sutures together, and utilize a free needle to further incorporate both bundles of sutures into the Achilles tendon. Next, create bilateral mini-incisions 1.5 cm proximal to the calcaneal tuberosity. Insert a rigid cannulated suture-passing device into each mini-incision, pass it through the distal Achilles tendon, load the ipsilateral suture bundle into the Nitinol wire, and pull the suture-passing device out the distal mini-incision to approximate the Achilles. To prepare the calcaneus, drill calcaneal tunnels toward the midline bilaterally, taking care to avoid convergence of the tunnels. Place a suture-passing needle in the tunnels to assist with placing the anchors. Next, tension the sutures, cycling them 5 to 10 times to remove any slack in the system. With the ankle in 15° of plantar flexion, anchor the sutures with cortical bioabsorbable interference screws, following the angle that the suture-passing needles are in. After confirming function of the Achilles tendon, close the peritenon, deep tissues, and superficial tissues, and place the ankle in a splint in 15° of plantar flexion. Alternatives: Acute Achilles ruptures can be treated operatively or nonoperatively1,2. Operative techniques include open, percutaneous, or minimally invasive Achilles tendon repair. Open Achilles tendon repair involves making a 10-cm posteromedial incision to perform a primary repair5, while percutaneous Achilles tendon repair involves the use of medial and lateral mini-incisions to pass needles and sutures into the Achilles tendon to repair it6. Minimally invasive Achilles tendon repair involves the use of a small 3 to 4-cm incision to introduce instrumentation such as modified ring forceps or an Achillon device (Integra)7,8, along with a percutaneous technique, to repair the Achilles tendon. Nonoperative treatment can be utilized in patients with <5 mm of gapping between the ruptured tendon edges on dynamic ultrasound in 30° of plantar flexion9, in patients with limited activity, or in patients whose comorbidities make them high-risk surgical candidates. Nonoperative treatment includes a below-the-knee rigid cast in 30° of plantar flexion or the use of a functional splint in 30° of plantar flexion with gradual progression to a neutral position, along with early rehabilitation according to the postoperative protocol described in the present article. Rationale: This technique allows patients to begin early postoperative rehabilitation, limits wound and soft-tissue complications such as superficial and deep infections, and protects neurovascular structures such as the sural nerve that may be injured if utilizing other techniques. These benefits are achieved through the use of a minimally invasive knotless approach that places nearly all of the suture material into the Achilles tendon, reducing friction within the paratenon and potentially facilitating improved gliding. Additionally, securing the sutures into the calcaneus minimizes postoperative Achilles tendon elongation and facilitates early postoperative rehabilitation. Expected Outcomes: Patients undergoing this procedure can expect to return to their baseline physical activities by 5 months3, with the best functional results observed at ≥12 months postoperatively4. One retrospective cohort study compared the results of 101 patients who underwent Achilles repair with use of the PARS Jig and 169 patients who underwent open Achilles repair, and found that 98% of PARS patients returned to baseline activities in 5 months compared with 82% of patients undergoing open Achilles repair (p = 0.0001)3. Another retrospective chart review assessed the results of 19 patients who underwent Achilles repair with the PARS Jig4 and found that patients began to return to sport as early as 3 months postoperatively and that functional scores in patients increased as time progressed, with significant increases observed at 12 months and longer postoperatively. Important Tips: Locate the Achilles tendon rupture site prior to marking the transverse incision.Bluntly dissecting the paratenon during closure stimulates healing and reduces scarring, thereby maintaining the integrity of the tissue10.When advancing the PARS Jig, ensure that the proximal Achilles tendon remains inside the device.Maintaining meticulous suture management and organization prevents tangles and improves suture shuttling.Ensure that the Achilles tendon is tensioned with the ankle in 15° of plantar flexion prior to distal anchor fixation. Acronyms and Abbreviations: MRI = magnetic resonance imagingUS = ultrasoundBID = twice dailyPRN = as neededDVT = deep vein thrombosis.

Lower Extremity Splinting: A Head-to-Head Comparison of A Novel One-Step Spray-on Splint Versus Standard Splinting.

INTRODUCTION: Splinting is an essential component of treating many lower extremity musculoskeletal injuries; however, little development has been made in splinting technology. The purpose of this study is to evaluate the efficacy of current immobilization equipment for lower extremity fractures by testing a novel one-step spray-on foam splint (Fast Cast) against structural aluminum malleable (SAM) lower extremity musculoskeletal injuries and 6-inch ACE (3M Corp., Minneapolis, MN, USA) bandage splints. MATERIALS AND METHODS: Six orthopedic surgical residents and two medical students participated in a prospective analysis of austere splinting techniques and equipment that utilized a cadaveric model with a distal third tibia-fibula shaft fracture. Each participant was observed and scored by three fellowship trained attending orthopedic surgeons. All scoring was independent using a 5-point Likert scale based on 10 splinting criteria (50 total points possible), including quality of radiographic reduction, time to completion, safety, and sustain longitudinal traction. The Likert scale is a set of questions that reflects the respondent's degree of agreement or disagreement with a statement. Each of the 10 questions has a range of 1-5. A score of 50 means the splint performed perfectly. The lowest possible score is a 10. The participants utilized standard equipment that included SAM splints and 6-inch ACE wraps (3M Corp., Minneapolis, MN, USA) in their first attempt. A second immobilization attempt was done with a one-step spray-on foam splint (Fast Cast). After each splinting attempt, the reduction was verified with radiographic imaging. Data analysis was performed using standard descriptive statistics, Student's t-tests, and inter-rater reliability was calculated using Cronbach's alpha scores. This project is Institutional Review Board (IRB) exempt. RESULTS: The one-step spray-on foam splinting technique was superior (P < .05) in all parameters of the Likert scale, yielding a mean overall score of 45.1 points (±3.8), safety 4.7 points, longitudinal traction 4.5 points, and time 136 seconds (±23). The SAM resulted in a mean overall score of 33.8 points (±7.3), safety 2.8 points, longitudinal traction 4.1 points, and time 170 seconds (±52). Radiographic rating was 4.1 points (±0.7) for the SAM splint and 4.5 (±0.6) for Fast Cast. The differences in time to completion and radiograph rating did not reach statistical significance (P = .12 and P = .07, respectively). CONCLUSION: A one-step spray-on foam splinting technique demonstrated consistent superiority in reducing fracture motion, potential soft-tissue damage, and sustained longitudinal traction as compared to the standard technique.

Suture Tape Augmented Broström Procedure and Early Accelerated Rehabilitation.

BACKGROUND: Immediately following a lateral ligament reconstruction of the ankle, the strength of the repair is far less than that of the native anterior talofibular ligament (ATFL). Additionally, early functional rehabilitation has been shown to increase laxity of the repair. We hypothesized that a Broström procedure augmented with a suture-tape construct would allow early functional rehabilitation while maintaining patient reported outcomes within a military population. METHODS: This study is a retrospective study of 93 consecutive patients with chronic lateral ankle instability that were treated with a Broström procedure augmented with a suture-tape construct. Subjects were evaluated at 2, 6, and 12 weeks postoperatively, with yearly satisfaction reviews. Demographics and functional outcomes including Foot and Ankle Disability Index (FADI), visual analog scale (VAS), satisfaction score, and clinical measures including single-leg hop and single-leg heel raise were recorded. Our patients included 75 males and 18 females with a mean age of 30 ± 7 (range, 19-51) years; our mean follow-up was 19 (range, 3-48) months. RESULTS: The mean FADI score improved from 67 preoperatively to 87 and 90 at 6 and 12 weeks (P < .001), with 60 patients (65%) obtaining a score greater than 90. The mean VAS scores improved from 4.8 preoperatively to 1.4 and 1.3 at 6 and 12 weeks (P < .001). Eighty-two (96%) of the patients asked were able to complete a single-leg hop and single-leg heel raise at 6 weeks. The 12-, 24-, 36-, and 48-month satisfaction scores were 8.5, 9.8, 9.2, and 8.9, respectively. Demographics collected did not impact results. CONCLUSION: This study suggests that a Broström procedure augmented with suture tape enabled early safe functional rehabilitation without subsequent failure. Our data also demonstrated a sustained high level of patient satisfaction while preventing reoccurrence within a high-demand military population. LEVEL OF EVIDENCE: Level IV, retrospective case series.

EMG Activity With Use of a Hands-Free Single Crutch vs a Knee Scooter.

BACKGROUND: Foot and ankle injuries frequently require a period of nonweightbearing, resulting in muscle atrophy. Our previous study compared a hands-free single crutch (HFSC) to standard axillary crutches and found increased muscle recruitment and intensity while using the HFSC. Knee scooters are another commonly prescribed nonweightbearing device. The purpose of this study is to examine the electromyographic (EMG) differences between an HFSC and knee scooter, in conjunction with device preference and perceived exertion. METHODS: A randomized crossover study was performed using 30 noninjured young adults. Wireless surface EMG electrodes were placed on the belly of the rectus femoris (RF), vastus lateralis (VL), lateral gastrocnemius (LG), and gluteus maximus (GM). Participants then ambulated along a 20-m walking area while 15 seconds of the gait cycle was recorded across 3 conditions: walking with a knee scooter, an HFSC, and with no assistive device. Mean muscle activity and peak EMG activity were recorded for each ambulatory modality. Immediately following testing, patient exertion and device preference was recorded. RESULTS: The RF, LG, and GM showed increased peak EMG activity percentage, and the LG showed increased mean muscle activity while using the HFSC compared with the knee scooter. When comparing the knee scooter and HFSC to walking, both showed increased muscle activity in the RF, VL, and LG but no difference in the GM. There was no statistical difference in participant preference, whereas the HFSC had a statistically significant higher perceived exertion than the knee scooter (P < .001). CONCLUSION: In this group of young, healthy noninjured volunteers, the HFSC demonstrated increased peak EMG activity in most muscle groups tested compared with the knee scooter. LEVEL OF EVIDENCE: Level II, prospective comparative study.

Outcomes of Posterior Arthroscopic Reduction and Internal Fixation (PARIF) for the Posterior Malleolar Fragment in Trimalleolar Ankle Fractures.

BACKGROUND: Posterior malleolar fractures within a trimalleolar ankle fracture pattern are challenging to manage. Posterior ankle arthroscopy provides a means to assess the intra-articular and syndesmotic reductions, while removing loose bodies. The purpose of this study was to determine the radiographic and patient reported outcomes of posterior arthroscopic reduction and internal fixation (PARIF) in trimalleolar ankle fractures. METHODS: From November 2015 to March 2019, we prospectively enrolled consecutive trimalleolar ankle fractures that underwent PARIF by a single surgeon. Preoperative and postoperative computed tomography (CT) scans were interpreted by 2 blinded musculoskeletal radiologists for articular reduction, syndesmosis congruity, and presence of ossific loose bodies. Patient outcomes were assessed using the Foot and Ankle Disability Index (FADI), American Orthopaedic Foot & Ankle Society (AOFAS) ankle score, Olerud-Molander Ankle Score (OMAS), and visual analog scale (VAS). A total of 28 trimalleolar ankle fractures were treated with PARIF. Mean patient age was 36 years (range, 19-69). RESULTS: Preoperative CT identified 18 intra-articular loose bodies (range, 0-4) in 36% of ankles and 75% (n = 21) syndesmosis incongruity. Postoperative CT scans demonstrated anatomic intra-articular reduction in all fractures, 41.7% (5/12) syndesmosis incongruity without fixation, and 0% (0/9) with suture-button fixation. At mean 2-year follow-up, the results were good to excellent with mean VAS score 1 (range, 0-4), AOFAS score 84 (range, 63-100), FADI 85 (range, 59-100), and OMAS 76 (range, 40-100). CONCLUSION: The PARIF technique for displaced posterior malleolar fractures was effective in achieving anatomic intra-articular reduction, syndesmosis congruity, and intra-articular loose body removal, while safely preserving the soft tissues. LEVEL OF EVIDENCE: Level IV, prospective case series.