American Journal of Sports Medicine

The molecular mechanism of how femoroacetabular impingement (FAI) morphology leads to hip osteoarthritis (OA) is yet to be determined. Expression and location of inflammation-related molecules during early- and late-stage FAI have not been previously described. Moreover, characterization of intraarticular inflammation away from cam deformity as well as the nature of the adjacent synovial tissue has also not been extensively characterized.

In conclusion, hip cartilage exhibits an osteoarthritic phenotype in patients with early FAI similar to what was observed in hip OA secondary to FAI. Severe synovitis was only evident in late-stage disease.

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Five articles from the August 2020 issue summarized in five minutes, with the addition of a brief editorial commentary. The 5-in-5 feature is designed to give readers an overview of articles that may pique their interest and encourage more detailed reading. It may also be used by busy readers who would prefer a brief audio summary in order to select the articles they want to read in full.

The featured articles for this month are, "Dyslipidemia With Perioperative Statin Usage Is Not Associated With Poorer 24-Month Functional Outcomes After Arthroscopic Rotator Cuff Surgery", "Posterior Rotational and Translational Stability in Acromioclavicular Ligament Complex (ACLC) Reconstruction: A Comparative Biomechanical Analysis in Cadaver Specimens", "An In-Depth Analysis of Graft Rupture and Contralateral ACL Rupture Rates After Pediatric ACL Reconstruction", "Concussion Symptom Cut-offs for Identification and Prognosis of Sports related Concussion: The Role of Time Since Injury", and "Long-term Outcomes and Survivorship of Fresh-Frozen Meniscal Allograft Transplant With Soft Tissue Fixation: Minimum 10-Year Follow-up Study".

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Injuries to the hamstring complex most commonly involve the proximal musculotendinous junction of the long head of the biceps femoris (MTJ-BFlh). Nonoperative management of these injuries is associated with prolonged rehabilitation and high risk of recurrence. To our knowledge, the surgical management of acute MTJ-BFlh injuries has not been previously reported.

In conclusion, surgical repair of acute MTJ-BFlh injuries enables return to preinjury level of sporting function with low risk of recurrence at short-term follow-up.

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Five articles from the July 2020 issue summarized in five minutes, with the addition of a brief editorial commentary. The 5-in-5 feature is designed to give readers an overview of articles that may pique their interest and encourage more detailed reading. It may also be used by busy readers who would prefer a brief audio summary in order to select the articles they want to read in full.

The featured articles for this month are, "Return to Sports After High Tibial Osteotomy With Concomitant Osteochondral Allograft Transplantation", "Influence of Glenoid Labral Bumper Height and Capsular Volume on Clinical Outcomes After Arthroscopic Bankart Repair as Assessed With Serial CT Arthrogram: Can Anterior-Inferior Volume Fraction Be a Prognostic Factor?", "Diagnostic Accuracy of Physical Examination Tests in Core Muscle Injury", "Quantitative and Qualitative Analyses of the Glenohumeral Ligaments: An Anatomic Study", and "The Use of Recombinant Human Growth Hormone to Protect Against Muscle Weakness in Patients Undergoing Anterior Cruciate Ligament Reconstruction: A Pilot, Randomized Placebo-Controlled Trial".

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Arthroscopic anterior cruciate ligament (ACL) reconstruction (ACLR) with a bone–patellar tendon–bone graft (BTB) is a reliable surgical option for the control of anterior knee laxity after ACL injury. The addition of a lateral extra-articular tenodesis (LET) may improve control of rotation knee laxity and improve short-term graft survival in high-risk patients.

In conclusion, there were no significant differences in long-term patient-reported outcomes after ACLR with or without an LET. LET may increase the risk of lateral compartment osteoarthritis at long-term follow-up. There was a trend toward decreased graft failure risk with the addition of LET but this study was underpowered to assess this outcome.

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Five articles from the June 2020 issue summarized in five minutes, with the addition of a brief editorial commentary. The 5-in-5 feature is designed to give readers an overview of articles that may pique their interest and encourage more detailed reading. It may also be used by busy readers who would prefer a brief audio summary in order to select the articles they want to read in full.

The featured articles for this month are, "Predictive Modeling to Determine Functional Outcomes After Arthroscopic Rotator Cuff Repair", "A Multicenter Study of Radiographic Measures Predicting Failure of Arthroscopy in Borderline Hip Dysplasia: Beware of the Tönnis Angle", "Comparison of Tendon Lengthening With Traditional Versus Accelerated Rehabilitation After Achilles Tendon Repair: A Prospective Randomized Controlled Trial", "Does Age Itself Have an Adverse Effect on Survivorship of Meniscal allograft transplantation?: A Cartilage Status and Time From Previous Meniscectomy-Matched Cohort Study", and "The Role of Patient Characteristics on the Success of Nonoperative Treatment of Anterior Cruciate Ligament Injuries".

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Preclinical studies suggest that for complete midsubstance anterior cruciate ligament (ACL) injuries, a suture repair of the ACL augmented with a protein implant placed in the gap between the torn ends (bridge-enhanced ACL repair [BEAR]) may be a viable alternative to ACL reconstruction (ACLR).

In conclusion, BEAR resulted in noninferior patient-reported outcomes and AP knee laxity and superior hamstring muscle strength when compared with autograft ACLR at 2-year follow-up in a young and active cohort. These promising results suggest that longer-term studies of this technique are justified.

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Five articles from the May 2020 issue summarized in five minutes, with the addition of a brief editorial commentary. The 5-in-5 feature is designed to give readers an overview of articles that may pique their interest and encourage more detailed reading. It may also be used by busy readers who would prefer a brief audio summary in order to select the articles they want to read in full.

The featured articles for this month are, "Prospective Assessment of Outcomes After Primary Unipolar, Multisurface, and Bipolar Osteochondral Allograft Transplantations in the Knee", "Five-Year Outcomes After Arthroscopic Surgery for Femoroacetabular Impingement Syndrome in Elite Athletes", "Effect of Sex and Ankle Brace Design on Knee Biomechanics During a Single-Leg Cut", "Influence of Varus Alignment on Survivorship After Lateral Meniscal Allograft Transplantation", and "Investigating the Range of Symptom Endorsement at Initiation of a Graduated Return to Play Protocol after Concussion and Duration of the Protocol: A study from the NCAA-DoD Concussion, Assessment, Research, and Education (CARE) Consortium."

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Safe return to play (RTP) after anterior cruciate ligament (ACL) reconstruction is critical to patient satisfaction. Enhanced rehabilitation after ACL reconstruction with appropriate objective criteria for RTP may reduce the risk of subsequent injury. The cost-effectiveness of an enhanced RTP (eRTP) strategy relative to standard post-ACL reconstruction rehabilitation has not been investigated.

In conclusion, the eRTP strategy in this study adds additional neuromuscular retraining and additional physician follow-up—as well as advanced testing goals upon which RTP is contingent—to traditional physical therapy. Our data suggest that these additions are cost-effective, even assuming only modest associated decreases in ACL graft failure. This study also determined that the only variable that had the potential to change the cost-effectiveness conclusion based on predetermined ranges was the additional cost of rehabilitation based on 1-way sensitivity analysis.

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Five articles from the April 2020 issue summarized in five minutes, with the addition of a brief editorial commentary. The 5-in-5 feature is designed to give readers an overview of articles that may pique their interest and encourage more detailed reading. It may also be used by busy readers who would prefer a brief audio summary in order to select the articles they want to read in full.

The featured articles for this month are, "Outcomes of Arthroscopic All-Inside Repair versus Observation in Older Patients with Meniscus Root Tears", "What Can a Jump Tell Us About Elbow Injuries in Professional Baseball Pitchers?", "Incidence and Prognostic Significance of the Segond Fracture in Patients Undergoing Anterior Cruciate Ligament Reconstruction", "Video Confirmation of Head Impact Sensor Data From High School Soccer Players", and "Risk Factors for Intra-articular Bone and Cartilage Lesions in Patients Undergoing Surgical Treatment for Posterior Instability".

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