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1.
Handchir Mikrochir Plast Chir ; 56(3): 257-260, 2024 Jun.
Article in German | MEDLINE | ID: mdl-38513691

ABSTRACT

Robotic microsurgery is an emerging field in reconstructive surgery, which provides benefits such as improved precision, optimal ergonomics, and reduced tremors. However, only a few robotic platforms are available for performing microsurgical procedures, and successful nerve coaptation is still a challenge. Targeted muscle reinnervation (TMR) is an innovative reconstructive procedure that rewires multiple nerves to remnant stump muscles, thereby reducing neuroma and phantom limb pain and improving the control of bionic prostheses. The precision of surgical techniques is critical in reducing axonal sprouting around the coaptation site to minimise the potential for neuroma formation. This study reports the first use of a microsurgical robotic platform for multiple nerve transfers in a patient undergoing TMR for bionic extremity reconstruction. The Symani robotic platform, combined with external microscope magnification, was successfully used, and precise handling of nerve tissue and coaptation was easily feasible even in anatomically challenging environments. While the precision and stability offered by robotic assistance may be especially useful for nerve surgery, the high economic costs of robotic microsurgery remain a major challenge for current healthcare systems. In conclusion, this study demonstrated the feasibility of using a robotic microsurgical platform for nerve surgery and transfers, where precise handling of tissue is crucial and limited space is available. Future studies will explore the full potential of robotic microsurgery in the future.


Subject(s)
Bionics , Microsurgery , Nerve Transfer , Robotic Surgical Procedures , Humans , Microsurgery/methods , Nerve Transfer/methods , Male , Nerve Regeneration/physiology , Phantom Limb/surgery , Artificial Limbs , Amputation Stumps/innervation , Amputation Stumps/surgery , Muscle, Skeletal/innervation , Muscle, Skeletal/transplantation , Plastic Surgery Procedures/methods , Neuroma/surgery
2.
J Plast Reconstr Aesthet Surg ; 90: 323-325, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38394840

ABSTRACT

The conventional approach to harvest of the gracilis muscle flap necessitates a medial thigh incision that is often related to several donor site complications. In this report we describe the robotic harvest of the free gracilis muscle flap in order to reduce the morbidity associated with the open incision. Through three ports, the robotic system (Da Vinci Xi, Intuitive Surgical) enables precise dissection of the gracilis muscle, the vascular pedicle, and the obturator nerve; thus, enhancing surgical control, optimizing visualization through magnification, aiding in detailed vascular pedicle dissection and minimizing human error. We believe that the technique of totally robotic harvest of the free gracilis muscle flap, herein introduced, is a feasible and effective approach, and confers specific advantages over traditional harvest technique.


Subject(s)
Gracilis Muscle , Robotic Surgical Procedures , Humans , Gracilis Muscle/transplantation , Surgical Flaps/blood supply , Thigh/surgery , Dissection , Muscle, Skeletal/transplantation
3.
J Hand Surg Eur Vol ; 49(6): 783-791, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38366374

ABSTRACT

Selective nerve transfers are used in the setting of upper limb amputation to improve myoelectric prosthesis control. This surgical concept is referred to as targeted muscle reinnervation (TMR) and describes the rerouting of the major nerves of the arm onto the motor branches of the residual limb musculature. Aside from providing additional myosignals for prosthetic control, TMR can treat and prevent neuroma pain and possibly also phantom limb pain. This article reviews the history and current applications of TMR in upper limb amputation, with a focus on practical considerations. It further explores and identifies technological innovations to improve the man-machine interface in amputation care, particularly regarding implantable interfaces, such as muscle electrodes and osseointegration. Finally, future clinical directions and possible scientific avenues in this field are presented and critically discussed.


Subject(s)
Artificial Limbs , Bionics , Muscle, Skeletal , Nerve Transfer , Upper Extremity , Humans , Nerve Transfer/methods , Upper Extremity/innervation , Upper Extremity/surgery , Muscle, Skeletal/innervation , Muscle, Skeletal/surgery , Muscle, Skeletal/transplantation , Amputation, Surgical
4.
Orthop Traumatol Surg Res ; 110(3): 103818, 2024 May.
Article in English | MEDLINE | ID: mdl-38246490

ABSTRACT

INTRODUCTION: We conducted an anatomic feasibility study of a sartorius myocutaneous flap with a distally based pedicle and proximal skin paddle to cover soft tissue defects of the knee region. HYPOTHESIS: A recent anatomic study by Mojalla showed that the sartorius muscle had 2 distinct pedicles, making it possible to isolate this muscle on its distal pedicle and harvest it with a skin paddle. MATERIALS AND METHODS: This anatomic study was conducted on 10 lower limbs. The 2 criteria assessed were (1) the viability of our proximal skin paddle and (2) the arc of rotation and coverage obtained with this myocutaneous flap. RESULTS: We identified 7 proximal skin paddles after the injection of India ink into the distal pedicle of the sartorius muscle. In all cases, the arc of rotation of the flap allowed coverage of the knee region. The mean distance between the inferior edge of the skin paddle and the proximal border of the patella (DBAP) was measured at 13cm, and the mean distance between the superior edge of the flap paddle and the anterior superior iliac spine (DASIS) at 16cm. The average skin paddle size was 14 by 7cm. DISCUSSION: Our anatomic study demonstrated the feasibility of our sartorius flap with a distally based pedicle and proximal skin paddle. This technique may be a viable alternative when using gastrocnemius flaps is not feasible, or the surgeon lacks the microsurgical skills to perform free flaps. LEVEL OF EVIDENCE: IV; descriptive anatomic study.


Subject(s)
Feasibility Studies , Myocutaneous Flap , Humans , Myocutaneous Flap/transplantation , Male , Muscle, Skeletal/transplantation , Female , Plastic Surgery Procedures/methods , Soft Tissue Injuries/surgery , Adult , Middle Aged , Knee Injuries/surgery , Cadaver
5.
Scand J Surg ; 113(2): 80-87, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38145318

ABSTRACT

BACKGROUND AND AIMS: Chronic pancreatitis may cause intractable abdominal pain, with total pancreatectomy sometimes being the last resort. To mitigate the subsequent diabetes, total pancreatectomy can be followed by islet autotransplantation (TP-IAT). The primary aim of this study was to assess the outcomes in patients undergoing TP-IAT at Karolinska University Hospital with respect to safety, postoperative complications, and islet graft function. A secondary aim was to compare liver to skeletal muscle as autotransplantation sites. METHODS: Single-center observational cohort study on patients undergoing TP-IAT. Islets were transplanted either into the liver or skeletal muscle. Data on baseline characteristics and pretransplantory conditions were collected. Outcome measures included mortality and major postoperative complications as well as the glycemic measures: insulin use, fasting C-peptide, and HbA1c. RESULTS: Between 2004 and 2020, 24 patients underwent TP-IAT. Islets were transplanted into the liver in 9 patients and into skeletal muscle in 15 patients. There was no 90-day mortality, and major complications (Clavien-Dindo ⩾IIIa) occurred in 26.7%, all related to the procedure of total pancreatectomy. Fasting C-peptide could be detected postoperatively, with higher levels in patients receiving islet autotransplantation into the liver (p = 0.006). Insulin independence was not achieved, although insulin doses at last follow-up were significantly lower in patients receiving islet autotransplantation into the liver compared to skeletal muscle (p = 0.036). CONCLUSION: TP-IAT is safe and associated with tolerable risk, the component of islet autotransplantation being seemingly harmless. Although islet grafts maintain some endocrine function, insulin independence should not be expected. Regarding islet autotransplantation sites, the liver seems superior to skeletal muscle. CLINICAL TRIAL REGISTRATION: Not applicable.


Subject(s)
Islets of Langerhans Transplantation , Pancreatectomy , Pancreatitis, Chronic , Transplantation, Autologous , Humans , Pancreatectomy/methods , Islets of Langerhans Transplantation/methods , Male , Female , Middle Aged , Pancreatitis, Chronic/surgery , Adult , Postoperative Complications/epidemiology , Treatment Outcome , Muscle, Skeletal/transplantation , Liver
6.
BMC Musculoskelet Disord ; 24(1): 951, 2023 Dec 08.
Article in English | MEDLINE | ID: mdl-38066531

ABSTRACT

INTRODUCTION: A chronic Achilles tendon rupture (ATR) is defined as an ATR that has been left untreated for more than four weeks following rupture. This systematic review aims to summarize the outcomes of chronic ATR treated using either a gastrocnemius aponeurosis flap or semitendinosus tendon graft. METHODS: A systematic search was conducted in three databases (PubMed, Scopus and Cochrane), for studies describing outcomes after surgical treatment of chronic ATR using gastrocnemius aponeurosis flaps or semitendinosus tendon grafts with more than 10 patients included. The studies were assessed for quality and risk of bias using the Methodological Items used to assess risk of bias in Non-Randomized Studies (MINORS). RESULTS: Out of the 818 studies identified with the initial search, a total of 36 studies with 763 individual patients were included in this systematic review. Gastrocnemius aponeurosis flap was used in 21 and semitendinosus tendon graft was used in 13 of the studies. The mean (SD) postoperative Achilles tendon Total Rupture Score (ATRS) for patients treated with a gastrocnemius aponeurosis flap was 83 (14) points and the mean (SD) American Orthopaedic Foot and Ankle Score (AOFAS) was 96 (1.7) points compared with ATRS 88 (6.9) points and AOFAS 92 (5.6) points for patients treated with a semitendinosus tendon graft. The included studies generally had low-quality according to MINORS, with a median of 8 (range 2-13) for all studies. CONCLUSION: Both gastrocnemius aponeurosis flaps and semitendinosus tendon grafts give acceptable results with minimal complications and are valid methods for treating chronic ATR. The main difference is more wound healing complications in patients treated with a gastrocnemius aponeurosis flap and more sural nerve injuries in patients treated with a semitendinosus grafts. The current literature on the subject is of mainly low quality and the absence of a patient-related outcome measure validated for chronic ATR makes comparisons between studies difficult. LEVEL OF EVIDENCE: Level IV.


Subject(s)
Achilles Tendon , Hamstring Tendons , Tendon Injuries , Humans , Achilles Tendon/surgery , Achilles Tendon/injuries , Aponeurosis , Surgical Flaps , Muscle, Skeletal/transplantation , Tendon Injuries/surgery , Rupture/surgery , Treatment Outcome
7.
Injury ; 54(10): 110960, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37517903

ABSTRACT

PURPOSE: To introduce the clinical outcomes of adductor longus and sartorius muscle transfer alone and combined application for reconstruction of the inguinal region. METHODS: This is a retrospective study of patients between January 2019 and December 2022 who underwent adductor longus flap transfer, sartorius muscle flap transfer, and combined transfer of adductor longus and sartorius muscle. The demographic data and surgical details were recorded. RESULTS: Sixteen patients were included, with a mean age of 57.5 years. Nine patients performed adductor longus flap transfers, three patients performed sartorius muscle flap transfers, and four patients performed combined transfers. The average operation time was 238 min. The average length of stay was 6.7 days. The average follow-up period was 9.6 months (range 6-16). The overall early postoperative complication rate was 12.5% (one patient had excessive wound exudation and one patient had a wound infection). No delayed postoperative complications occurred during the follow-up. CONCLUSION: The sartorius muscle flap, the adductor longus flap, and the combined application are suitable techniques for inguinal region reconstruction under different conditions. The combined application of the two flaps can fill the dead space and cover the neurovascular bundle efficaciously.


Subject(s)
Neoplasms , Plastic Surgery Procedures , Humans , Middle Aged , Retrospective Studies , Surgical Flaps/blood supply , Postoperative Complications/surgery , Muscle, Skeletal/transplantation
9.
Scand J Surg ; 112(3): 173-179, 2023 Sep.
Article in English | MEDLINE | ID: mdl-37264639

ABSTRACT

BACKGROUND: Soft tissue defects or periprosthetic infections after total knee arthroplasty (TKA) are severe complications that may lead to loss of the arthroplasty or the limb. Reconstructions with medial gastrocnemius flaps (MGF) are occasionally used to provide soft tissue coverage around the knee. AIMS: The study aimed to establish the rate of implant survivorship after MGF reconstruction for soft tissue coverage in the treatment of exposed or infected TKA and to establish functional outcome. METHODS: A retrospective analysis was performed on all patients who received soft tissue coverage with an MGF of an exposed or infected TKA between 2000 and 2017 at the Department of Hand and Plastic Surgery at Umeå University Hospital. The outcomes were implant survivorship and patient-reported outcome measures (PROMs) using the five-level EQ-5D version and The Knee Injury and Osteoarthritis Outcome Score. RESULTS: Forty-seven patients (mean age = 67 years, 30 women) were included. The mean time between flap coverage and follow-up was 6.7 (±3.4) years. Implant survivorship was observed in 28 of 47 (59.6%) patients at follow-up. Flap failure was rare, with only 3 of 47 (6.4%) cases. Of the 20 patients who answered the PROMs, 10 of 20 experienced moderate to severe pain or discomfort. CONCLUSIONS: Due to unfavorable underlying conditions, MGF reconstruction after TKA is often associated with a compromised functional outcome. Because donor site morbidity is limited and flap failure is unusual, the procedure can be considered prophylactically in a small subset of patients with risk factors to prevent soft tissue defects and periprosthetic joint infection.


Subject(s)
Arthroplasty, Replacement, Knee , Humans , Female , Aged , Arthroplasty, Replacement, Knee/adverse effects , Retrospective Studies , Muscle, Skeletal/transplantation , Treatment Outcome , Surgical Flaps , Postoperative Complications/etiology
10.
Tech Hand Up Extrem Surg ; 27(3): 194-198, 2023 Sep 01.
Article in English | MEDLINE | ID: mdl-37218464

ABSTRACT

Free functional gracilis transfer is a technique for restoration of upper extremity function following brachial plexus injury, as well as muscle loss from traumatic, oncologic, and congenital causes. However, when used for the latter applications, a functional muscle as well as large skin paddle can be required. Historically, skin paddle size was limited by venous outflow of the gracilis flap, using 1 or 2 venae comitantes, and large unreliable skin paddles resulting in partial necrosis. Therefore, to restore form and function, we herein present a technique of free functional gracilis muscle harvest with inclusion of adjacent greater saphenous vein for inclusion of a large skin paddle with 2 venous drainage systems.


Subject(s)
Brachial Plexus , Gracilis Muscle , Humans , Gracilis Muscle/transplantation , Muscle, Skeletal/transplantation , Saphenous Vein/surgery , Surgical Flaps/blood supply , Brachial Plexus/injuries
11.
J Plast Reconstr Aesthet Surg ; 82: 107-117, 2023 07.
Article in English | MEDLINE | ID: mdl-37156105

ABSTRACT

PURPOSE: In this study, facial symmetry was compared between the masseter-innervated and dual-innervated free multivector serratus anterior muscle transfer (FMSAMT) methods. METHODS: Eighteen patients with unilateral complete facial paralysis underwent facial reanimation surgery between April 2006 and July 2019. The masseter-innervated FMSAMT group (Group M, n = 8) underwent end-to-end coaptation with the ipsilateral masseter nerve in one stage. The dual-innervated FMSAMT group (Group D, n = 10) underwent end-to-end coaptation with the masseter nerve and end-to-side coaptation with the contralateral facial nerve via cross-face nerve graft. They were further divided into the one-stage (Group D1, n = 5) and two-stage (Group D2, n = 5) subgroups. The durations of periods until the first visible muscle contraction with clenching, first spontaneous smile, and the completion of resting tone were evaluated. The possibility of a spontaneous smile and symmetry of the midline and horizontal deviation at rest and during voluntary smiling were compared between each group. RESULTS: Groups M and D differed significantly in the possibility of a spontaneous smile and improvement rate of midline deviation and horizontal deviation at rest (p < 0.001, p < 0.001, and p = 0.001, respectively) but not in the improvement rate of midline and horizontal deviation during voluntary smiling. The duration of the period until the completion of resting tone was significantly shorter in Group D1 than in Group D2 (p = 0.048); however, the possibility of a spontaneous smile and the improvement rate of midline and horizontal deviation were not significantly different. CONCLUSIONS: Dual-innervated FMSAMT was effective in guaranteeing a symmetrical resting tone, voluntary smiling, and reproducing a spontaneous smile.


Subject(s)
Facial Paralysis , Humans , Facial Paralysis/surgery , Muscle, Skeletal/transplantation , Masseter Muscle/innervation , Smiling/physiology , Facial Expression
12.
J Plast Reconstr Aesthet Surg ; 81: 68-75, 2023 06.
Article in English | MEDLINE | ID: mdl-37105089

ABSTRACT

Wide hard palate defects include congenital and acquired defects that are six square centimeters or larger in size. Obturator prostheses and autologous soft tissue transfers have been used to reconstruct palatal defects. This study aims to repair wide, hard palatal defects by using a pronator quadratus musculo-osseous free flap to achieve subtotal reconstruction. Seventeen formalin-fixed cadavers were dissected. Free musculo-osseous pronator quadratus flaps were prepared after a 12 cm curvilinear volar skin incision. Standard 30 × 23 mm (690 ± 52.12 mm2) hard palate defects were made by chisels and saws. A subcutaneous tunnel was created between the mandibular edge cross point of the facial vessels and the retromolar trigone through the subcutaneous to the superficial musculoaponeurotic system by dissection. Area measurements of the pedicle and palate defects were performed by the ImageJ program (National Institutes of Health, Bethesda, MD, USA) on drawings over an acetate layer of materials. Mandibular distances of gonion-facial vessel cross point (a), gonion-gnathion (m), and facial vessels' cross point-retromolar entrance point (h) were measured. Ratios of h/m and a/m were calculated. The mean pronator quadratus area was 2349.39 ± 444.05 mm2, and the arterial pedicle pronator quadratus diameter was 2.32 ± 0.34 mm. The mean pedicle length of the pronator quadratus was 117.13 ± 8.10 mm. Study results showed that musculo-osseous pronator quadratus flaps' bone and muscle parts perfectly fit on the defects in all cadavers. Pronator quadratus musculo-osseous flap is a feasible surgical option for wide, hard palatal defect reconstruction strategies.


Subject(s)
Cleft Palate , Free Tissue Flaps , Plastic Surgery Procedures , Humans , Free Tissue Flaps/surgery , Muscle, Skeletal/transplantation , Cleft Palate/surgery
13.
J Plast Reconstr Aesthet Surg ; 78: 38-47, 2023 03.
Article in English | MEDLINE | ID: mdl-36822101

ABSTRACT

BACKGROUND: Groin dehiscence following vascular procedures results in morbidity for patients with peripheral vascular disease. Controversy exists around the indications for flap coverage. We present an institutional experience with flap reconstruction of groin wounds after vascular procedures to identify predictors of beneficial outcomes. PATIENTS AND METHODS: A retrospective review of patients who had flap coverage for infected/nonhealing groin wounds following a vascular procedure between 1998 and 2021 was performed. Demographics and clinical characteristics, including flap and vascular graft type, were collected along with major complications. Univariate and multivariable logistic regression analyses were performed to assess the associations between procedures and major complications. RESULTS: A total of 270 flaps were transferred to 237 patients. Thirty-three patients had bilateral wounds. The mean age and BMI were 67 ± 11 years and 27.9 ± 6.3 kg/m2, respectively. Flaps included rectus femoris (n = 142), sartorius (n = 118), rectus abdominis (n = 7), and gracilis (n = 3). Covered vascular grafts included prosthetic materials (n = 200) and autografts (n = 70). The median length of hospital stay after surgery was 10 days (interquartile range=12), and the mean follow-up was 29.1 ± 39.2 months. The major complication rate was 38.5% with wound infection being the most common. Flaps successfully prevented the infection-related removal of the grafts in 98.9% of cases. Multivariable analysis revealed no significant associations between variables and having a major complication. CONCLUSIONS: Flap coverage of the inguinal vessels can be performed safely with favorable limb salvage. Wound complications were high, but graft salvage was excellent. Rectus femoris and sartorius muscle flaps were the most common flaps, yielding comparable outcomes.


Subject(s)
Groin , Surgical Wound Infection , Humans , Groin/surgery , Groin/injuries , Surgical Wound Infection/etiology , Surgical Flaps , Muscle, Skeletal/transplantation , Quadriceps Muscle/transplantation , Retrospective Studies
14.
J Plast Reconstr Aesthet Surg ; 77: 298-308, 2023 02.
Article in English | MEDLINE | ID: mdl-36610275

ABSTRACT

BACKGROUND: The knee region represents a challenging area of soft tissue reconstruction. Specifically, in the context of total knee arthroplasty (TKA) or following high-energy trauma with fractures and hardware fixation, soft tissue defects can expose critical structures such as joint, bone or tendon, besides the implant/plates themselves, with dramatic consequences in terms of postoperative infection and hardware contamination. METHODS: A retrospective study was conducted on a prospectively maintained database from January 2016 to February 2021. Inclusion criteria involved all patients who underwent an implant-associated infection of the knee and upper third of the leg coupled with a soft tissue reconstruction (STR) using the traditional gastrocnemius muscle (GM) pedicled flap or the chimeric GM-MSAP (medial sural artery perforator) flap. RESULTS: Thirty-eight patients were included (group A, GM flap, 22 patients; group B, chimeric GM-MSAP flap, 16 patients). No statistically significant differences were detected in terms of age, comorbidities, defect size, follow-up, and flap complications. A statistically significant difference was seen among the groups in terms of successful flap re-raise (required because of a persistent infection of the implant or in a two-stage procedure setting, including the use of a cemented spacer) in favour of the GM-MSAP group. CONCLUSION: The chimeric GM-MSAP, being safer to reraise if required, can be a significantly more powerful tool in those cases in which a two-stage procedure is planned or when there is a high probability for secondary intervention need, reducing the need to convert to either free flap coverage or amputation.


Subject(s)
Perforator Flap , Plastic Surgery Procedures , Soft Tissue Injuries , Humans , Retrospective Studies , Treatment Outcome , Surgical Flaps/blood supply , Muscle, Skeletal/transplantation , Postoperative Complications/surgery , Perforator Flap/blood supply , Soft Tissue Injuries/surgery
15.
Ann Plast Surg ; 90(1): 76-81, 2023 01 01.
Article in English | MEDLINE | ID: mdl-36534105

ABSTRACT

BACKGROUND: Soleus muscle flap can be used in different modifications to reconstruct lower limb defects. It can be proximally based, distally based, island or reversed flow flap. The first description of the soleus muscle as an island flap supplied by one distal perforator was reported by Yajima et al (Plast Reconstr Surg. 1995;96:1162-1168). However, its use as a propeller flap supplied by the distal perforators and rotated for more than 90 degrees was not described yet. OBEJECTIVES: The aims of the study are to study the detailed vascular anatomy of the distal perforators of the soleus muscle flap and to demonstrate the applicability of using it as a propeller flap. PATIENTS AND METHODS: A total number of 42 patients were included in this study. These patients had various distal leg and foot defects. All patients were assessed preoperatively by Doppler study and computed tomography angiography to define the vascular status of the leg. The muscle was raised as a reversed flow flap, based on 1 or more distal perforators and its feeding vessel (posterior tibial artery) after being dissected and divided proximally. The muscle was rotated for more than 90 degrees to reach distal leg defects and approximately 180 degrees to reach the foot defects. RESULTS: All flaps survived completely with good and durable coverage. The vascularity of the limb was not affected in all patients. There was no functional donor site morbidity. CONCLUSIONS: The reversed flow hemisoleus muscle flap supplied by the distal perforators and the posterior tibial artery has a great arc of rotation that can cover all distal leg, ankle, and foot defects. Therefore, it can be used as alternative to free flap in lower extremity reconstruction. A new nomenclature is suggested for this flap which is the propeller hemisoleus muscle flap.


Subject(s)
Free Tissue Flaps , Perforator Flap , Plastic Surgery Procedures , Soft Tissue Injuries , Humans , Foot/blood supply , Muscle, Skeletal/transplantation , Tibial Arteries/surgery , Perforator Flap/surgery , Soft Tissue Injuries/surgery
16.
Int Wound J ; 20(3): 784-791, 2023 Mar.
Article in English | MEDLINE | ID: mdl-36054479

ABSTRACT

The purpose of this retrospective study was to introduce our successful use of tensor fascia lata allograft to reconstruct various soft tissue defects. Since May 2021, we have applied tensor fascia lata allografts in eight cases. A frozen type of fascia of 0.6 mm thickness was used in all cases, and allografts were covered by vascularized soft tissue. We used tensor fascia lata allograft in eight cases to cover the infected wounds, donor site closure, and pedicle protections. These were abdominal wall and back reconstructions following rectus muscle and latissimus dorsi muscle harvest, coverage of infected spine wound after posterior fusion, pressure ulcer reconstruction, and pedicle protection of free and pedicle flaps. The follow-up periods were from one to 14 months. None of the cases showed wound problems after initial reconstruction using tensor fascia lata allografts. Tensor fascia lata allograft could be an excellent cost-effective surgical option comparable to autologous tissue grafts. Level of evidence: IV.


Subject(s)
Fascia Lata , Wound Infection , Humans , Fascia Lata/transplantation , Retrospective Studies , Surgical Flaps , Muscle, Skeletal/transplantation , Allografts
17.
Ann Plast Surg ; 89(6): 709-715, 2022 12 01.
Article in English | MEDLINE | ID: mdl-36416708

ABSTRACT

ABSTRACT: Reconstruction of the thumb is among the most complex challenges faced by hand surgeons. Meaningful functional recovery of the thumb is dependent mainly on thumb opposition and palmar abduction. Free functional muscle transfer provides neurotized, robust soft tissue coverage that can achieve dynamic reconstruction of thenar musculature in a single stage.We present a case of a free neurotized segmental gracilis muscle transfer for thenar reconstruction and a systematic review of thenar reconstruction with free functional muscle transfer in the literature. A teenage male patient with a gunshot-induced thenar defect was reconstructed using a free neurotized gracilis muscle measuring 5 × 11 cm. The obturator nerve was coapted to the recurrent motor branch of the median nerve. The patient reached M4 strength at 10 months with functional use of his thumb. A systematic review of options for functional thenar reconstruction revealed 14 studies describing functional thenar reconstruction in 44 patients. Successful functional flaps described included gracilis muscle, pronator quadratus muscle, pectoralis minor muscle, abductor hallucis muscle, extensor digitorum brevis muscle, and serratus anterior muscle. Microsurgical transfer of a functional muscle is an excellent option for single-stage thenar reconstruction of both form and function. There are a number of available donor sites with equivalent size and bulk to that of native thenar musculature.


Subject(s)
Hand , Thumb , Adolescent , Humans , Male , Thumb/surgery , Surgical Flaps , Muscle, Skeletal/transplantation , Pectoralis Muscles/transplantation
18.
J Plast Reconstr Aesthet Surg ; 75(12): 4393-4402, 2022 12.
Article in English | MEDLINE | ID: mdl-36257888

ABSTRACT

The authors present an anatomical study and clinical experience with radial forearm flap (RFF) and pronator quadratus muscle (PQM) application in the reconstruction of various body areas. The aim was to describe the anatomical placement and proportions of the PQM, the anatomical location of the major arterial branch of the radial artery supplying the PQM, and the application of this knowledge in clinical practice. The anatomical study was based upon an analysis of 13 fresh adult cadaver upper extremities, of which nine were female and four male; both arms from the same donors were used in four cases. The study of the PQM was performed using a dye-containing intraarterial injection, standard macro- and micro-preparation techniques, and chemical digestion. The data on the PQM size in males and females, thickness of the radial artery branch (the principal artery nourishing the muscle), and its position were analysed. The radial artery branch nourishing the PQM was identified in all cadaveric specimens of the anatomical study. In addition, 12 patients underwent reconstructions of soft and bony tissue defects using a RFF + PQM (pedicled or free flap). The radial artery branch perfusing the PQM was identified in all cases. The flap was used for the management of defects of the head (seven cases), arm (three cases) and lower leg (two cases). The harvest site healed well in all cases and, with the exception of one case in which a partial necrosis of the flap was observed, all flaps remained viable, which demonstrated the safety of the method.


Subject(s)
Free Tissue Flaps , Plastic Surgery Procedures , Humans , Adult , Male , Female , Forearm/surgery , Forearm/blood supply , Radial Artery/surgery , Plastic Surgery Procedures/methods , Free Tissue Flaps/surgery , Muscle, Skeletal/transplantation
19.
Surg Radiol Anat ; 44(2): 207-213, 2022 Feb.
Article in English | MEDLINE | ID: mdl-35124737

ABSTRACT

PURPOSE: Pronator quadratus (PQ) is a quadrilateral muscle on a volar distal side of the forearm. The purpose of this study was to establish a novel surgical technique for reanimation of the upper eyelid for severe ptosis using PQ functional free muscle flap. METHODS: The current study is a cadaveric study, designed to assess a PQ free flap transfer that lies between the frontalis muscle and the upper eyelid. Fourteen PQ from fourteen embalmed cadavers were dissected, and their neurovascular pedicles were isolated. Then they were transferred to the area on the contralateral side between the frontalis muscle and upper eyelid tarsal cartilage. Measurements of the PQ flap, antebrachial region, orbitofrontal region, recipient vessels, and motor nerve were performed using a caliper. The extendibility of neurovascular pedicles was evaluated by measurements of lengths. In addition, the diameter of PQ flap vascular pedicle vessels was compared with recipient vessels. RESULTS: The mean width of the proximal border of PQ was 41.92 ± 2.05 mm and the distal border of the PQ was 42.84 ± 4.04 mm. The mean PQ artery (type II, Mathes-Nahai flap classification) length was found to be 117.72 ± 7.77 mm. The mean diameter of the anterior interosseous nerve was 1.89 ± 0.08 mm. The mean diameter of the uppermost branch of the frontal branch of the facial nerve was 1.18 ± 0.25 mm. The length and diameter of neurovascular pedicles of muscle flaps were adequate for microvascular anastomoses and neurorrhaphy. CONCLUSIONS: The results of this anatomical study demonstrate that the PQ free flap transfer has anatomical features that are suitable and compatible with the surgical treatment of blepharoptosis.


Subject(s)
Blepharoptosis , Plastic Surgery Procedures , Forearm , Humans , Muscle, Skeletal/transplantation , Surgical Flaps
20.
Goiânia; s.n; 2022. 1-40 p. tab, ilus.
Non-conventional in Portuguese | SES-GO, CONASS, Coleciona SUS | ID: biblio-1370557

ABSTRACT

Aborda sobre o atendimento por modalidade de transplantes via SUS, em Goiás. Apresenta as unidades de saúde e profissionais responsáveis. Discorre sobre o fluxo de regulação de transplantes no estado, o fluxo de exames para a inscrição, manutenção e acompanhamento do potencial receptor, os direito dos usuários dos serviços de transplantes e o tratamento fora do domicílio. Orienta sobre o Fluxo Geral de Regulação para Consulta de Avaliação em Transplantes


It addresses the care by type of transplant via SUS in the state of Goiás. It presents the health units and responsible professionals. It discusses the flow of regulation of transplants in the state, the flow of exams for the registration, maintenance and monitoring of the potential recipient, the rights of users of transplant services and treatment outside the home. Guidance on the General Regulation Flow for Evaluation Consultation in Transplants


Aborda la atención por tipo de trasplante vía SUS en el estado de Goiás. Presenta las unidades de salud y los profesionales responsables. Discute el flujo de regulación de trasplantes en el estado, el flujo de exámenes para el registro, mantenimiento y seguimiento del potencial receptor, los derechos de los usuarios de los servicios de trasplante y el tratamiento fuera del hogar. Guías sobre el Reglamento General de Flujo para la Consulta de Evaluación en Trasplantes


Subject(s)
Humans , Transplants/standards , Health Services Accessibility/organization & administration , Tissue Transplantation/standards , Bone Marrow Transplantation/standards , Corneal Transplantation/standards , Kidney Transplantation/standards , Liver Transplantation/standards , Muscle, Skeletal/transplantation
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