Faculty Bibliography

BACKGROUND/UNASSIGNED:Performing open subpectoral biceps tenodesis in overhead athletes with a superior labrum anterior to posterior (SLAP) tear may affect their ability to return to overhead sports. PURPOSE/UNASSIGNED:To investigate clinical outcomes in overhead athletes undergoing biceps tenodesis for the treatment of symptomatic, isolated SLAP tears involving the biceps-labral complex. STUDY DESIGN/UNASSIGNED:Case series; Level of evidence, 4. METHODS/UNASSIGNED:value of <.05 was considered to be statistically significant. RESULTS/UNASSIGNED:The current study included 44 overhead athletes. The mean age was 34.9 years (range, 16-46 years), 79.5% were male, and the mean follow-up was 49.0 months (range, 18-107 months). Overall, 81.8% of patients returned to play their overhead sport after biceps tenodesis, and 59.1% of patients returned to the same or higher level of play. It took patients, on average, 8.7 months to return to play after biceps tenodesis. The mean SLAP-RSI score was 69.4, and 70.5% of patients passed the SLAP-RSI threshold of 56. The mean ASES score, VAS score, SSV, and satisfaction were 92.0, 0.8, 80.6, and 87.9%, respectively. No patients in our cohort required revision surgery. CONCLUSION/UNASSIGNED:This study found that athletes undergoing biceps tenodesis for the treatment of a symptomatic, isolated SLAP tear had a high rate of return to play, good functional outcomes, and a low rate of revision surgery.

Despite multiple advances in techniques for posterior cruciate ligament reconstruction (PCL-R), residual posterior laxity continues to be a commonly reported complication. Multiple studies demonstrated a decreased or flat posterior tibial slope, increases posterior laxity, and forces placed across the native and reconstructed PCL. Anterior opening wedge high tibial osteotomies (aOW-HTO) can be used to increase posterior tibial slope, thereby reducing tibial sag and posterior laxity. Depending on the technique used, anterior opening wedge osteotomies can lead to changes in patellar height, affecting patient pain and satisfaction. The purpose of this article is to describe a technique for an aOW-HTO with a tibial tubercle osteotomy and concomitant PCL-R to increase the posterior tibial slope while minimizing changes to patellar height.

IMPORTANCE/OBJECTIVE:There have been several recent systematic reviews of quadriceps tendon autografts (QT), which have not shown any significant difference in outcomes between QT and hamstring tendon autograft (HS) for ACL reconstruction (ACLR). However, several recent comparative studies have been published comparing QT to HS for ACLR. AIM/OBJECTIVE:The purpose of this study is to perform a systematic review and meta-analysis of the studies comparing QT to HS for ACLR. EVIDENCE REVIEW/METHODS:Two independent reviewers performed the literature search based on the PRISMA guidelines, with a senior author arbitrating discrepancies. Cohort studies comparing QT with HS were included. FINDINGS/RESULTS:There were 15 studies comparing 611 patients with QT to 543 patients with HS, with a mean of 27.4 months follow-up. QT resulted in a significantly lower rate of graft re-rupture (2.5% vs 8.7%, p = 0.01), and donor site morbidity (17.6% vs 26.2%, p = 0.02). There was a significant difference in favour of QT for the positive pivot shift test (Grade I/II: 15.8% vs 23.0%, p = 0.02), but not in the rate of the positive Lachman test (Grade I/II: 18.3% vs 26.7%, p = 0.16). Additionally, there was no difference in the side to side difference in knee stability (1.8 mm vs 2.0 mm, p = 0.48). Functionally, both grafts had similar functional outcomes in terms of the IKDC score (88.0 vs 87.9, p = 0.69), and Lysholm score (89.3 vs 87.6, p = 0.15). CONCLUSIONS AND RELEVANCE/CONCLUSIONS:Our study showed that QT has a lower re-rupture rate than HS in ACLR, with lower donor site morbidity. QT appeared to be slightly better for residual pivot shift, but there was no difference in patient-reported outcomes. LEVEL OF EVIDENCE/METHODS:III.

BACKGROUND/UNASSIGNED:The intra-articular immune response after ligamentous, meniscal, or focal chondral knee injuries likely plays a role in intra-articular healing and the onset and progression of posttraumatic osteoarthritis. PURPOSE/UNASSIGNED:To evaluate the association of synovial fluid cytokine concentrations measured at the time of knee arthroscopy with intermediate-term functional outcomes after knee arthroscopy based on the Lysholm score. STUDY DESIGN/UNASSIGNED:Cohort study; Level of evidence, 2. METHODS/UNASSIGNED:This was a prospective cohort study of patients undergoing arthroscopic knee surgery. Synovial fluid was aspirated from the injured knee immediately before surgical incision, and the concentrations of 10 cytokines were analyzed using immunoassay. Principal component regression was used to create a model to predict patient-reported Lysholm score at a minimum of 5 years postoperatively. Hierarchical clustering was performed to identify groups of patients with similar synovial fluid inflammatory phenotypes. Lysholm scores and cytokine concentrations were compared between clusters. RESULTS/UNASSIGNED:= .002). CONCLUSION/UNASSIGNED:The concentrations of select synovial fluid cytokines assessed at the time of knee arthroscopy can be used to explain more than half of the variance in intermediate-term functional outcomes.

CASE:A 17-year-old adolescent boy presented with continued knee pain, swelling, and mechanical symptoms after anterior cruciate ligament (ACL) reconstruction with partial meniscectomy. The patient eventually underwent ACL revision surgery that was without complications. Postoperatively, the well leg grew firm with associated neurological deficits, and physical examination confirmed compartment syndrome of the lower leg compartments that resolved with emergency fasciotomy. The patient proceeded on normal postoperative course. CONCLUSION:Compartment syndrome of the well leg is a rare complication in the field of sports medicine, owing to the relatively healthy and young demographic, but providers should nonetheless be vigilant to prevent disastrous sequalae.

Background: Prior literature has demonstrated variability in the preparation of platelet-rich plasma (PRP) for knee osteoarthritis, but it is unclear if study design and postoperative outcomes have been standardized for this intervention. Objective: To determine the variability in study design and outcome reporting across randomized controlled trials (RCTs) examining intra-articular PRP injections for knee osteoarthritis. Data source: The Cochrane Database, PubMed, EMBASE, and MEDLINE. Study eligibility criteria, participants, and interventions: Level I and II RCTs examining intra-articular PRP injections for knee osteoarthritis were included. Study appraisal and synthesis methods: The Jadad score was utilized. Results: Twenty-seven studies were included. Five studies conducted repeat imaging postoperatively. Visual Analog Scale (VAS) Pain (63%) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) (59.3%) were the 2 most utilized PROMs, followed by Knee Injury and Osteoarthritis Outcome Score (KOOS) (29.6%). Twelve (44%) RCTs reported 3 or more PROM (ie, VAS, KOOS, WOMAC). Most RCTs did not report objective outcome measures (70.4%). Limitations: The findings were largely descriptive in nature with limited utilization of statistical evaluation. Conclusions and implications of key findings: RCTs examining outcomes after intra-articular PRP injection for knee OA demonstrate substantial variability. Standardizing the population of most benefit with respect to arthritis grade may help in limiting population heterogeneity for future study comparison and pooling. In addition, PROs should be reported in a domain-specific manner allowing for assessment of pain, function, and health-related quality of life. Systematic review registry number: This review was not registered with PROSPERO. Level of Evidence: II; Systematic Review of Level I-II RCTs.

Anterior cruciate ligament (ACL) injuries are one of the most common and debilitating injuries experienced by athletes. While many patients successfully undergo ACL reconstructions, long-term failure rates have been reported between 2% to 27% resulting in the need for revisions. One of the main causes for the failure of ACL reconstruction is osseous malalignment (coronal versus sagittal). This review discusses the pathology behind osseous malalignment and provides insights into the origins that helped advance our understanding of our treatment, the high tibial osteotomy.

PURPOSE/OBJECTIVE:The purpose of the current study is to perform a systematic review of the literature and evaluate maximum medical improvement and minimal clinically important difference (MCID) of different injectables in the treatment of symptomatic knee osteoarthritis. METHODS:A systematic review was performed to evaluate maximum medical improvement and MCID in patients undergoing injections of different modalities for knee osteoarthritis. Demographic factors of the patients being reviewed were analyzed, with patient-reported outcomes as reported by visual analog scale (VAS) and Western Ontario and McMaster Universities Arthritis Index (WOMAC) being used to evaluate the clinical trajectory of patients receiving intra-articular injections. RESULTS:Overall, 79 (level of evidence I: 79) studies met inclusion criteria, with 8761 patients. Corticosteroid (CS) injections, middle molecular weight hyaluronic acid (MMW-HA), and leukocyte-rich platelet rich plasma (LR-PRP) injections reached their maximum pain control at 4 to 6 weeks after injection, as measured by VAS. The lowest VAS scores were reached for low molecular weight hyaluronic acid (LMW-HA), high molecular weight hyaluronic acid (HMW-HA), and leukocyte-poor platelet rich plasma (LP-PRP) by 3 months after injection. Similarly, the WOMAC scores were lowest at 4 to 6 weeks after CS and MMW-HA injections, and at 3 months after HMW-HA and LP-PRP injections. LR-PRP demonstrated the most prolonged pain relief relative to the other injection types, with the lowest VAS score of all groups measured at final follow-up. LP-PRP showed the lowest WOMAC scores at final follow-up, one year post-injection. CONCLUSION/CONCLUSIONS:PRP injections provide continued pain relief at up to 1 year after injection. Corticosteroids and hyaluronic acid have good efficacy and are suitable for many patients but lack this longevity. LEVEL OF EVIDENCE/METHODS:Level I, a systematic review of Level I studies.

Glenohumeral osteoarthritis (GHOA) in the young adult remains a challenging clinical problem to treat. These difficulties stem from the high physical demands and expectations of this patient population, limited longevity of existing treatment modalities, and need for a future revision surgery after primary surgical intervention. Given the heterogeneous etiology, clinical presentation, and radiographic findings, a thorough understanding of the pathology, patient expectations, and outcomes of existing treatment options available is necessary to deliver a treatment that is tailored to individual needs of the patient. None of the available treatment options have shown to alter the natural history of GHOA. Nonsurgical modalities continue to be the first line treatment but there is no consensus if one treatment is more effective than the other. Surgical options include shoulder preserving and shoulder replacing procedures and are usually considered after the nonsurgical options become ineffective in controlling a patient's symptoms. Total shoulder arthroplasty provides predictable pain relief and improvement of function but is limited by the longevity of the implant. Despite the growing research, there continues to be search for a long lasting, durable treatment option that would compete with a young adult's lifetime.

The Latarjet-Patte procedure has a long and storied history that predates shoulder arthroscopy, but its popularity has increased over the past two decades as a treatment for anterior glenohumeral instability with bone loss. Transfer of the coracoid process and conjoint tendon to the anteroinferior glenoid creates a triple-blocking effect that is both static and dynamic, lending it biomechanical superiority over alternative bone block techniques. Patients undergoing the Latarjet-Patte procedure have low rates of recurrent instability compared to arthroscopic soft-tissue stabilization procedures, particularly in the setting of glenoid- and humeral-sided bone loss. A number of technical innovations have been developed in recent years to improve the efficacy of this procedure and to reduce its potential complications, although their associated learning curves and potential for widespread adoption remain unclear. In this article, we review the history, indications, outcomes, and future of this surgical technique.