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1.
Cureus ; 16(5): e61114, 2024 May.
Article in English | MEDLINE | ID: mdl-38919242

ABSTRACT

Compartment syndrome (CS) can occur in a variety of clinical scenarios. Reperfusion injury and tissue swelling are common causes across etiologies. Trauma is recognized as a common cause, but CS is also seen after limb alignment correction for extremities. CS is a difficult diagnosis to make in any scenario. Timely diagnosis is also difficult. Correct diagnosis is inexact, with many false positives and some false negatives being the normal outcome. This case represents a scenario where it was inherently difficult to make the diagnosis. The patient was a young patient with an underlying neurodevelopmental disorder where physical and clinical examination was impossible to accomplish. Any intervention to decrease pain was also difficult and actively refused by the patient and the family. Leaving open wounds after a fasciotomy was also undesirable for wound care and infection. Previous care maps have high false-positive rates or a need for fasciotomy as the treatment arm when diagnosis is uncertain. This usually results in fasciotomy being performed in many legs without CS. These false positives and resultant prophylactic releases are costly because of protracted hospital stay, high rate of deep infection, and decreased operating room availability for other cases. The desirable tool for surgeons would be the one that decreased false positives and false negatives while ensuring diagnosis in a timely fashion for true-positive cases. Technology for monitoring continuous pressure has been shown to aid in diagnosis. In this report, we illustrate the use of a continuous pressure monitoring system in a case of a pediatric patient post-osteotomy of a lower limb presenting with unremitting pain and a difficult clinical examination.

2.
Article in English | MEDLINE | ID: mdl-38723282

ABSTRACT

Treatment of patellofemoral instability in skeletally mature patients remains an important area of clinical and research interest. Both nonsurgical and surgical interventions are used to treat the underlying causes. Surgical management is the mainstay of treatment of recurrent PFI that fails nonsurgical treatment, and it is broadly classified into bony and soft-tissue procedures. Proximal bony procedures include femoral trochleoplasty, derotational osteotomies, and coronal alignment correction of the femur. Distal bony procedures include tibial tubercle transfer and derotational (supratubercle and infratubercle) osteotomies. Soft-tissue procedures consist of medial patellofemoral ligament repair or reconstruction and lateral lengthening procedures. This article is the second part of our two-article review on PFI, which focuses on surgical treatment options, their indications, outcomes, and potential complications.

3.
Clin Biomech (Bristol, Avon) ; 102: 105892, 2023 02.
Article in English | MEDLINE | ID: mdl-36652877

ABSTRACT

BACKGROUND: Supratubercle tibial rotational osteotomies are useful in patellar stabilizing procedures with high tibial-tuberosity to trochlear-groove distance caused by excessive external tibial torsion. An investigation determined one degree of internal tibial rotation results in 0.68 mm reduction of tibial-tuberosity to trochlear-groove distance, but did not account for anatomical variability. METHODS: This is a radiographic proof of concept for equation validation. We compared two different derived equations, a complex four-variable and simplified two-variable equation, to the literature relationship and true measured value from CT imaging. Bilateral pre-operative CTs of 37 patients, evaluated for malalignment, were reviewed retrospectively. We virtually simulated derotations of five, ten and fifteen degrees, and compared the reduction in tibial-tuberosity to trochlear-groove distance measured radiologically from CTs to the one predicted by our equation. FINDINGS: The difference between the true change in tibial-tuberosity to trochlear-groove distance and that obtained using our four-variable was statistically insignificant for all derotation angles (p > 0.05), and the two-variable equation it was statistically insignificant for five and fifteen degrees of derotation (p > 0.05). Conversely, the true values were statistically different from those found using the published relationship (p < 0.05 for all). INTERPRETATION: This new equation accounts for individual patient anatomy, for a more accurate relationship between internal rotation of the distal segment of the tibia and the subsequent decrease in the tibial-tuberosity to trochlear-groove distance. The change was overestimated using the linear relationship, which may result in under correction. Future studies will assess true post-operative distance change following osteotomy.


Subject(s)
Joint Instability , Patellofemoral Joint , Humans , Tibia/surgery , Retrospective Studies , Tomography, X-Ray Computed , Patella , Osteotomy/methods , Joint Instability/surgery , Patellofemoral Joint/surgery , Knee Joint
4.
J Am Acad Orthop Surg ; 30(22): e1431-e1442, 2022 Nov 15.
Article in English | MEDLINE | ID: mdl-36037281

ABSTRACT

Patellofemoral instability (PFI) is a prevalent cause of knee pain and disability. It affects mostly young females with an incidence reported as high as 1 in 1,000. Risk factors for instability include trochlear dysplasia, patella alta, increased tibial tubercle-to-trochlear groove distance, abnormal patella lateral tilt, and coronal and torsional malalignment. Nonsurgical and surgical options for PFI can treat the underlying causes with varied success rates. The goal of this review series was to synthesize the current best practices into a concise, algorithmic approach. This article is the first in a two-part review on PFI, which focuses on the clinical and radiological evaluation, followed by nonsurgical management. The orthopaedic surgeon should be aware of the latest diagnostic protocol for PFI and its nonsurgical treatment options, their indications, and outcomes.


Subject(s)
Joint Instability , Patellofemoral Joint , Female , Humans , Patellofemoral Joint/surgery , Joint Instability/therapy , Joint Instability/surgery , Patella/surgery , Tibia/surgery , Knee Joint/surgery
6.
J Exp Orthop ; 9(1): 9, 2022 Jan 14.
Article in English | MEDLINE | ID: mdl-35028782

ABSTRACT

Anterior cruciate ligament reconstruction is the preferred treatment to anterior cruciate ligament injury. With the increase in anterior cruciate ligament injuries in both adults and skeletally immature patients comes the need for individualized anterior cruciate ligament reconstruction graft selection whether it is the type of graft (auto vs. allograft) or the harvesting site (hamstrings, iliotibial band, quadriceps, patella). Several factors need to be considered preoperatively in order to optimize the patients' recovery and restore anterior cruciate ligament strength and function. These include age and bone maturity, preoperative knee flexor/extensor strength, sport participation, patient's needs and anatomical characteristics. This paper aims at bringing evidence supporting the use of a personalized approach in graft selection for faster and more efficient return to sport and propose a theoretical framework to support the approach.

7.
Mol Genet Genomic Med ; 10(1): e1773, 2022 01.
Article in English | MEDLINE | ID: mdl-34894100

ABSTRACT

BACKGROUND: Osteochondritis dissecans is a condition wherein there is a subchondral bone lesion that causes pain, inflammation, and cartilage damage. Dominant Familial Osteochondritis Dissecans is a rare and severe form of osteochondritis dissecans (OCD). It is caused by heterozygous pathogenic variants in the gene encoding Aggrecan; ACAN. Aggrecan, a proteoglycan, is an essential component of the articular and growth plate cartilage. METHODS: Herein, we report three individuals from one family; the proband who presented with short stature, a lower limb bone exostosis, and bilateral knee and elbow OCD at the age of 13 years old. His twin brother presented with isolated short stature and his father with short stature and lumbar disc herniation. RESULTS: Next-generation sequencing of the ACAN gene in the proband identified a frameshift variant which is also present in the brother and father with short stature. The proband was treated surgically with bilateral elbow microfracture, after the failure of conservative therapy. CONCLUSION: To the best of our knowledge, this is the first patient with an aggrecanopathy who presents with osteochondritis dissecans due to a frameshift variant. This family presents with variable expressivity which might be attributed to modifier genes.


Subject(s)
Dwarfism , Intervertebral Disc Displacement , Osteochondritis Dissecans , Adolescent , Aggrecans/genetics , Dwarfism/genetics , Heterozygote , Humans , Intervertebral Disc Displacement/genetics , Male , Osteochondritis Dissecans/genetics , Osteochondritis Dissecans/pathology
8.
Article in English | MEDLINE | ID: mdl-34300065

ABSTRACT

This systematic review aimed to investigate whether the use of a knee brace when returning to sport (RTS) could prevent a second injury after anterior cruciate ligament reconstruction (ACLR). This study was registered with the PROSPERO database and followed PRISMA guidelines. A systematic search of PubMed, Ovid Medline, Ovid All EBM Reviews, Ovid Embase, EBSCO Sportdiscus and ISI Web of Science databases for meta-analysis, randomized controlled trials and prospective cohort studies published before July 2020 was undertaken. The inclusion criteria were: (1) Comparing with and without a brace at RTS, (2) follow up of at least 18 months after ACLR, (3) reinjury rates included in the outcomes. Two reviewers independently extracted the data. Quality appraisal analyses were performed for each study using the Cochrane Collaboration tools for randomized and nonrandomized trials. A total of 1196 patients in three studies were included. One study showed a lower rate of reinjury when wearing a knee brace at RTS. One study found the knee brace to have a significant protective effect for younger patients (≤17 years). The effectiveness of knee bracing when RTS remains ambiguous. Current data cannot support that using a knee brace when RTS will decrease the rate of reinjury after ACL reconstruction.


Subject(s)
Anterior Cruciate Ligament Injuries , Anterior Cruciate Ligament Reconstruction , Reinjuries , Anterior Cruciate Ligament Injuries/prevention & control , Anterior Cruciate Ligament Injuries/surgery , Humans , Prospective Studies , Return to Sport
9.
Orthop J Sports Med ; 9(6): 23259671211016900, 2021 Jun.
Article in English | MEDLINE | ID: mdl-34179210

ABSTRACT

BACKGROUND: Exercise is widely regarded to improve pain and function in patients with knee osteoarthritis (OA) through building supportive muscle mass, facilitating weight loss, and through the other beneficial effects associated with it. PURPOSE: To explore literature that presents clinical guidelines for the use of exercise in the treatment of knee OA to inform an evidence-based position statement for the Arthroscopy Association of Canada. STUDY DESIGN: Position statement. METHODS: PubMed, MEDLINE, Embase, and Cochrane databases were searched for guidelines commenting on the role of exercise for knee OA. The search was limited to guidelines published in the last 10 years. Articles were screened for relevance, focusing on recently published research with clinical guidelines. Inclusion criteria involved all articles providing clinical guidelines for exercise and knee OA. RESULTS: Eight guidelines were identified. All eight recommended exercise as an important component of treatment for knee OA, with 6/8 strongly recommending it. CONCLUSION: Exercise is an effective and important component of the non-pharmacological management of knee OA. The Arthroscopy Association of Canada strongly recommends the use of exercise in the management of knee OA.

10.
J Child Orthop ; 14(3): 161-166, 2020 Jun 01.
Article in English | MEDLINE | ID: mdl-32582382

ABSTRACT

PURPOSE: To explore safe delays for the treatment of common paediatric orthopaedic conditions when faced with a life-threatening pandemic, COVID-19, and to propose a categorization system to address this question. METHODS: Review of the literature related to acceptable delays for treatment of common orthopaedic conditions, experience of healthcare professionals from low resource communities and expertise of experienced surgeons. RESULTS: Guidelines for the management of cancellations of elective surgeries during a period of resource reallocation are proposed. Elective cases must not be postponed indefinitely as adverse outcomes may result. Triage of waiting lists should include continuous monitoring of the patient and close communication with families despite social distancing and travel restrictions. Telehealth becomes a necessity. Common orthopaedic conditions are triaged into four groups according to urgency and safe and acceptable delay. Categories proposed are Emergent (life and limb threatening conditions), Urgent (within seven days), Semi-elective (postponed for three months) and Elective (postponed for three to 12 months). In total, 25 common orthopaedic conditions are reviewed and categorized. CONCLUSION: Given the uncertainty within healthcare during a pandemic, it is necessary to determine acceptable delays for elective conditions. We report our experience in developing guidelines and propose categorizing elective cases into four categories, based on the length of delay. Telemedicine plays a key role in determining the gravity of each situation and hence the amount of delay. These guidelines will assist others dealing with elective cases in the midst of a crisis. This paper initiates a coordinated effort to develop a consensus statement on safe delays.Published without peer review.

11.
J Bone Joint Surg Am ; 102(8): 703-718, 2020 Apr 15.
Article in English | MEDLINE | ID: mdl-31977822

ABSTRACT

BACKGROUND: Anterior cruciate ligament (ACL) reconstruction incidence has increased substantially in the past 25 years. Recently, there has been a focus on knee morphology as a contributor to ACL injury risk. The purpose of this study was to systematically review the literature to assess the influence of knee morphology on ACL injury. METHODS: In accordance with PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, PubMed, Embase, and MEDLINE were searched in September 2017 for studies reporting on knee morphology and ACL injury. The search was updated in June 2018. The following inclusion criteria were used: English language; full text available; Level-I, II, or III evidence; human studies; and skeletally mature patients. RESULTS: After systematically screening 6,208 studies, 65 studies met the inclusion/exclusion criteria. Three additional studies were identified in the search update, for a total of 68 studies comprising 5,834 ACL-injured knees. Intercondylar notch stenosis, most commonly defined by an "A-shaped" notch, decreased notch width, or decreased notch width index, was the most commonly reported femoral morphological risk factor for ACL injury. Increased femoral condylar offset ratio (>63%) and decreased condylar radius of curvature also were associated with an increased risk of ACL injury. Increased medial and lateral tibial slopes were the most commonly reported tibial risk factors. A smaller tibial eminence, reduced ACL size, and poor tibiofemoral congruity were also associated with increased injury risk. CONCLUSIONS: Intercondylar notch stenosis, variations in sagittal condylar shape, increased tibial slope, reduced tibial eminence size, poor tibiofemoral congruity, and reduced ACL size are substantial risk factors for ACL injury. In future research, it would be valuable to identify a slope beyond which slope correction should be performed concomitantly with ACL reconstruction, and to determine whether an optimal relationship of notch size to graft size exists. To achieve optimal outcomes, the osseous morphological risk factors should be considered in individualized anatomic ACL reconstructions. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.


Subject(s)
Anterior Cruciate Ligament Injuries/etiology , Knee Joint/anatomy & histology , Anterior Cruciate Ligament Injuries/surgery , Anterior Cruciate Ligament Reconstruction , Humans , Risk Factors
12.
J Shoulder Elbow Surg ; 28(4): 654-664, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30527883

ABSTRACT

BACKGROUND: Chronic massive rotator cuff tears heal poorly and often retear. This study investigated the effect of adipose-derived stem cells (ADSCs) and transforming growth factor-ß3 (TGF-ß3) delivered in 1 of 2 hydrogels (fibrin or gelatin methacrylate [GelMA]) on enthesis healing after repair of acute or chronic massive rotator cuff tears in rats. METHODS: Adult male Lewis rats underwent bilateral transection of the supraspinatus and infraspinatus tendons with intramuscular injection of botulinum toxin A (n = 48 rats). After 8 weeks, animals received 1 of 8 interventions (n = 12 shoulders/group): (1) no repair, (2) repair only, or repair augmented with (3) fibrin, (4) GelMA, (5) fibrin + ADSCs, (6) GelMA + ADSCs, (7) fibrin + ADSCs + TGF-ß3, or (8) GelMA + ADSCs + TGF-ß3. An equal number of animals underwent acute tendon transection and immediate application of 1 of 8 interventions. Enthesis healing was evaluated 4 weeks after the repair by microcomputed tomography, histology, and mechanical testing. RESULTS: Increased bone loss and reduced structural properties were seen in chronic compared with acute tears. Bone mineral density of the proximal humerus was higher in repairs of chronic tears augmented with fibrin + ADSCs and GelMA + ADSCs than in unrepaired chronic tears. Similar improvement was not seen in acute tears. No intervention enhanced histologic appearance or structural properties in acute or chronic tears. CONCLUSIONS: Surgical repair augmented with ADSCs may provide more benefit in chronic tears compared with acute tears, although there was no added benefit to supplementing ADSCs with TGF-ß3.


Subject(s)
Rotator Cuff Injuries/physiopathology , Rotator Cuff Injuries/therapy , Stem Cell Transplantation , Transforming Growth Factor beta3/therapeutic use , Wound Healing , Acute Disease , Adipose Tissue/cytology , Animals , Bone Density , Chronic Disease , Fibrin/therapeutic use , Humerus/physiology , Hydrogels/therapeutic use , Male , Methacrylates/therapeutic use , Orthopedic Procedures , Rats , Rats, Inbred Lew , Rotator Cuff Injuries/diagnostic imaging , Wound Healing/drug effects , X-Ray Microtomography
13.
Clin Sports Med ; 37(1): 41-47, 2018 Jan.
Article in English | MEDLINE | ID: mdl-29173556

ABSTRACT

The role of the anterolateral complex of the knee in providing static and rotatory knee stability has been a source of renewed interest in the literature. Several studies have established a role of the anterolateral complex in controlling knee rotational stability. Although the objective quantification of knee kinematics and stability has been investigated, understanding of the structural properties of the anterolateral complex is evolving. This article highlights recent evidence pertaining to the structural properties of the anterolateral structures. The biomechanical evaluation of the structural properties of the anterolateral complex of the knee yielded minimal involvement in controlling knee rotational stability.


Subject(s)
Knee Joint/anatomy & histology , Knee Joint/physiology , Ligaments, Articular/anatomy & histology , Ligaments, Articular/physiology , Biomechanical Phenomena , Humans , Joint Instability/physiopathology , Knee Joint/surgery , Ligaments, Articular/surgery , Rotation , Tibia/physiology
14.
Oper Tech Orthop ; 27(1): 63-69, 2017 Mar.
Article in English | MEDLINE | ID: mdl-28989265

ABSTRACT

As the incidence of anterior cruciate ligament (ACL) reconstruction continues to increase, the rate of revision surgery continues to climb. Revision surgery has inherent challenges that must be addressed in order to achieve successful results. The cause of the primary ACL reconstruction failure should be determined, and careful preoperative planning should be performed to address the cause(s) of failure. Each patient undergoing revision surgery should undergo a thorough history and physical examination, receive full length alignment radiographs, lateral radiographs, 45-degree flexion weight-bearing postero-anterior radiographs, and patellofemoral radiographs. 3-dimensional computed topography (CT) scan should be performed to assess tunnel position and widening. Magnetic resonance imaging (MRI) should be used to assess for intra-articular soft tissue pathology. Meniscal tears, meniscal deficiency, anterolateral capsule injuries, bony morphology, age, activity level, connective tissue diseases, infection, graft choice, and tunnel position can all impact the success of ACL reconstruction surgery. Meniscal lesions should be repaired, and in cases of persistent rotatory instability, extra-articular procedures may be indicated. Furthermore, osteotomies may be needed to correct malalignment or excess posterior tibial slope. Depending on the placement and condition of the original femoral and tibial tunnels, revision surgery may be performed in a single procedure or in a staged manner. In most cases, the surgery can be performed in one procedure. Regardless, the surgeon must communicate with the patient openly regarding the implications of revision ACL surgery and the treatment plan should be developed in a shared fashion between the surgeon and the patient.

15.
J Neurosurg Spine ; 27(5): 578-583, 2017 Nov.
Article in English | MEDLINE | ID: mdl-28885126

ABSTRACT

OBJECTIVE The cost of spine management is rising. As diagnostic imaging accounts for approximately 10% of total patient care spending, there is interest in determining if economies could be made with regard to the routine consultation of radiology for image interpretation. In the context of spine trauma, both the spine surgeon and the radiologist interpret perioperative imaging. Authors of the present study investigated the impact of radiologist interpretation of perioperative imaging from patients with traumatic single-level thoracolumbar fractures given that spine surgeons are expected to be comfortable interpreting pathologies of the musculoskeletal system. METHODS The authors conducted a retrospective review of all patients presenting with a single-level thoracolumbar fracture treated at the McGill University Health Centre in the period from January 2003 to December 2010. The time between image capture and radiologist interpretation as well as the number of extraskeletal and/or incidental findings was extracted from the radiology reports on all perioperative images including radiographic, fluoroscopic, and CT images. The cost of interpretation was obtained from the provincial health insurance entity of Quebec. RESULTS Eighty-two patients met the study inclusion criteria. Radiologists took a median of 1 day (IQR 0-5.5 days) to interpret preoperative radiographs. Intraoperative fluoroscopic images and postoperative radiographs were read by the radiologist a median of 19 days (IQR 4-56.75 days) and 34 days (IQR 1-137.5 days) after capture, respectively (p < 0.05). Preoperative radiologist dictations reported extraskeletal and/or incidental findings for 8.1% of radiographs; there were no intraoperative or postoperative extraskeletal findings beyond those previously reported on the preoperative radiographs. Radiologists took a median of 1 day (IQR 0-1 day) to read both preoperative and postoperative CT scans; extraskeletal and/or incidental findings were present in 46.2% of preoperative reports and 4.5% of postoperative reports. There were no intraoperative or postoperative radiological findings that provoked reoperation. A total of 66 intraoperative fluoroscopy images and 225 postoperative radiographs were read for a cost of $1399.20 and $1867.50 (Canadian dollars), respectively, for radiologist interpretation. This cost amounted to 40.3% of all perioperative image interpretation spending. CONCLUSIONS In the management of single-level thoracolumbar fractures, radiologists add information to the diagnostic picture when interpreting preoperative radiographs and perioperative CT scans; however, the interpretation of intraoperative fluoroscopic images and postoperative radiographs comes with significant delay, does not add additional information, and represents an area of potential cost and professional-resource reduction.


Subject(s)
Lumbar Vertebrae/injuries , Perioperative Care/economics , Radiologists/economics , Spinal Fractures/diagnostic imaging , Spinal Fractures/economics , Thoracic Vertebrae/injuries , Academic Medical Centers , Adolescent , Adult , Aged , Aged, 80 and over , Canada , Female , Fluoroscopy/economics , Humans , Incidental Findings , Lumbar Vertebrae/diagnostic imaging , Male , Middle Aged , Retrospective Studies , Spinal Fractures/surgery , Surgeons/economics , Thoracic Vertebrae/diagnostic imaging , Time Factors , Tomography, X-Ray Computed/economics , Young Adult
16.
Tissue Eng Part B Rev ; 23(4): 318-335, 2017 08.
Article in English | MEDLINE | ID: mdl-28084902

ABSTRACT

The torn rotator cuff remains a persistent orthopedic challenge, with poor outcomes disproportionately associated with chronic, massive tears. Degenerative changes in the tissues that comprise the rotator cuff organ, including muscle, tendon, and bone, contribute to the poor healing capacity of chronic tears, resulting in poor function and an increased risk for repair failure. Tissue engineering strategies to augment rotator cuff repair have been developed in an effort to improve rotator cuff healing and have focused on three principal aims: (1) immediate mechanical augmentation of the surgical repair, (2) restoration of muscle quality and contractility, and (3) regeneration of native enthesis structure. Work in these areas will be reviewed in sequence, highlighting the relevant pathophysiology, developmental biology, and biomechanics, which must be considered when designing therapeutic applications. While the independent use of these strategies has shown promise, synergistic benefits may emerge from their combined application given the interdependence of the tissues that constitute the rotator cuff organ. Furthermore, controlled mobilization of augmented rotator cuff repairs during postoperative rehabilitation may provide mechanotransductive cues capable of guiding tissue regeneration and restoration of rotator cuff function. Present challenges and future possibilities will be identified, which if realized, may provide solutions to the vexing condition of chronic massive rotator cuff tears.


Subject(s)
Rotator Cuff Injuries , Developmental Biology , Humans , Rotator Cuff , Tendons , Tissue Engineering
17.
Spine (Phila Pa 1976) ; 42(1): E50-E55, 2017 Jan 01.
Article in English | MEDLINE | ID: mdl-27172287

ABSTRACT

STUDY DESIGN: Cross-sectional, modified Delphi approach. OBJECTIVE: The primary objective of this study was to identify patients at risk of increased perioperative blood loss according to the opinion of expert spine surgeons across Canada. The secondary objective was to obtain information about the experts' approach on how to minimize significant blood loss perioperatively. SUMMARY OF BACKGROUND DATA: Significant blood loss in major spinal surgeries has been associated with increased intra- and perioperative complications and costs. The current available evidence regarding risk factors and preventive measures for increased blood loss remains incomplete. METHODS: A modified Delphi approach was employed to generate consensus opinion on the risk factors and preventive measures for significant blood loss in major spinal surgeries. Twenty-five spine surgeons in Canada participated in this study. RESULTS: Among various factors, surgery for the treatment of spine tumors and prolonged operative time of greater than 5 hours were found to be the most important predictive factors for blood loss in spine surgery. On the other hand, appropriate surgical hemostasis was considered the most effective measure for the prevention of blood loss in these surgeries. CONCLUSION: We recommend the reduction of blood loss by means of meticulous hemostasis and shorter operative time when it is safe and possible. This might result in better treatment outcomes. It would also lead to a reduction in costs associated with major spine surgeries and would ultimately lead to greater value-based spine care. LEVEL OF EVIDENCE: 4.


Subject(s)
Blood Loss, Surgical/prevention & control , Hemostasis, Surgical/methods , Orthopedic Procedures/adverse effects , Spine/surgery , Canada , Consensus , Humans , Operative Time , Risk Factors
18.
J Bone Joint Surg Am ; 97(17): 1465-71, 2015 Sep 02.
Article in English | MEDLINE | ID: mdl-26333743

ABSTRACT

BACKGROUND: To our knowledge, there is currently no validated educational model to evaluate and teach basic arthroscopic skills that is widely accessible to orthopaedic residency training programs. The primary objective was to design and to validate a surgical simulation model by demonstrating that subjects with increasing level of training perform better on basic arthroscopic simulation tasks. The secondary objective was to evaluate inter-rater and intra-rater reliability of the model. METHODS: Prospectively recruited participants were divided by level of training into four groups. Subjects performed six basic arthroscopic tasks using a box model: (1) probing, (2) grasping, (3) tissue resection, (4) shaving, (5) tissue liberation and suture-passing, and (6) knot-tying. A score was calculated according to time required to complete each task and deductions for technical errors. A priori total global score, of a possible 100 points, was calculated by averaging scores from all six tasks using equal weights. RESULTS: A total of forty-nine participants were recruited for this study. Participants were grouped by level of training: Group 1 (novice: fifteen medical students and interns), Group 2 (junior residents: twelve postgraduate year-2 or postgraduate year-3 residents), Group 3 (senior residents: sixteen postgraduate year-4 or postgraduate year-5 residents), and Group 4 (six arthroscopic surgeons). The mean total global score (and standard deviation) differed significantly between groups (p < 0.001): 29.0 ± 13.6 points for Group 1, 40.3 ± 12.1 points for Group 2, 57.6 ± 7.4 points for Group 3, and 72.4 ± 3.0 points for Group 4. Pairwise comparison with Tukey correction confirmed construct validity by showing significant improvement in overall performance by increasing level of training between all groups (p < 0.05). The model proved to be highly reliable with an intraclass correlation coefficient of 0.99 for both inter-rater and intra-rater reliability. CONCLUSIONS: A simulation model was successfully designed to teach and evaluate basic arthroscopic skills showing good construct validity. This arthroscopic simulation model is inexpensive, valid, and reliable and has the potential to be implemented in other training programs.


Subject(s)
Arthroscopy/education , Computer Simulation/standards , Internship and Residency , Orthopedics/education , Analysis of Variance , Arthroscopy/standards , Clinical Competence/standards , Equipment Design , Humans , Models, Anatomic , Orthopedics/standards , Prospective Studies , Psychomotor Performance , Quebec , Teaching/methods , Time Factors
19.
World J Surg ; 39(9): 2173-81, 2015 Sep.
Article in English | MEDLINE | ID: mdl-26037025

ABSTRACT

BACKGROUND: Injuries and surgical diseases are leading causes of global mortality. We sought to identify successful strategies to augment surgical capacity and research endeavors in low-income countries (LIC's) based on existing peer-reviewed literature. METHODS: A systematic review of literature from or pertaining to LIC's from January 2002 to December 2011 was performed. Variables analyzed included type of intervention performed, research methodology, and publication demographics such as surgical specialty, partnerships involved, authorship contribution, place and journal of publication. FINDINGS: A total of 2049 articles met the inclusion criteria between 2002 and 2011. The two most common study methodologies performed were case series (44%) and case reports (18%). A total of 43% of publications were without outcome measures. Only 21% of all publications were authored by a collaboration of authors from low-income countries and developed country nationals. The five most common countries represented were Nepal (429), United States (408), England (170), Bangladesh (158), and Kenya (134). Furthermore, of countries evaluated, Nepal and Bangladesh were the only two with a specific national journal. INTERPRETATION: Based on the results of this research, the following recommendations were made: (1) Describe, develop, and stimulate surgical research through national peer-reviewed journals, (2) Foster centers of excellence to promote robust research competencies, (3) Endorse partnerships across regions and institutions in the promotion of global surgery, and (4) Build on outcome-directed research.


Subject(s)
Authorship , Bibliometrics , Capacity Building , Developing Countries/statistics & numerical data , Specialties, Surgical/statistics & numerical data , Bangladesh , Biomedical Research , Cooperative Behavior , Developed Countries/statistics & numerical data , England , Humans , Kenya , Nepal , Outcome Assessment, Health Care , Periodicals as Topic , United States
20.
World J Orthop ; 5(3): 204-17, 2014 Jul 18.
Article in English | MEDLINE | ID: mdl-25035822

ABSTRACT

Femoral neck fractures account for nearly half of all hip fractures with the vast majority occurring in elderly patients after simple falls. Currently there may be sufficient evidence to support the routine use of hip replacement surgery for low demand elderly patients in all but non-displaced and valgus impacted femoral neck fractures. However, for the physiologically young patients, preservation of the natural hip anatomy and mechanics is a priority in management because of their high functional demands. The biomechanical challenges of femoral neck fixation and the vulnerability of the femoral head blood supply lead to a high incidence of non-union and osteonecrosis of the femoral head after internal fixation of displaced femoral neck fractures. Anatomic reduction and stable internal fixation are essentials in achieving the goals of treatment in this young patient population. Furthermore, other management variables such as surgical timing, the role of capsulotomy and the choice of implant for fixation remain controversial. This review will focus both on the demographics and injury profile of young patients with femoral neck fractures and the current evidence behind the surgical management of these injuries as well as their major secondary complications.

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