Arthroscopic Inlay Suprapectoral versus Mini-Open Onlay Subpectoral Biceps Tenodesis: A Prospective, Randomized Analysis of Clinical Outcomes and Ultrasound-Assessed Structural Integrity.

Background: Surgical techniques for biceps tenodesis vary in approach, fixation strategy, and anatomic location without clear superior technique for this common procedure.

Hypothesis/purpose: The purpose of this study was to prospectively evaluate a randomized cohort of patients undergoing arthroscopic suprapectoral (ASBT) with interference screw fixation using an inlay technique versus mini-open subpectoral (MOBT) with a unicortical button implant using an onlay technique with regards to 1) clinical outcome measures and 2) structural healing as evaluated by ultrasound.

Methods: From May 2017 to April 2021, patients undergoing biceps tenodesis were preoperatively randomized to either ASBT or MOBT.

A Novel Machine Learning Model to Predict Revision ACL Reconstruction Failure in the MARS Cohort.

Background: As machine learning becomes increasingly utilized in orthopaedic clinical research, the application of machine learning methodology to cohort data from the Multicenter ACL Revision Study (MARS) presents a valuable opportunity to translate data into patient-specific insights.

Purpose: To apply novel machine learning methodology to MARS cohort data to determine a predictive model of revision anterior cruciate ligament reconstruction (rACLR) graft failure and features most predictive of failure.

Study Design: Cohort study; Level of evidence, 3.

Surgical Predictors of Clinical Outcome 6 Years After Revision ACL Reconstruction.

Background: Revision anterior cruciate ligament (ACL) reconstruction has been documented to have inferior outcomes compared with primary ACL reconstruction. The reasons why remain unknown.

Purpose: To determine whether surgical factors performed at the time of revision ACL reconstruction can influence a patient's outcome at 6-year follow-up.

Early results of reverse total shoulder arthroplasty using a patient-specific baseplate to address severe glenoid deficiency.

Background: The purpose of this study was to describe outcomes of patients undergoing reverse total shoulder arthroplasty (rTSA) using a patient-specific, custom glenoid component to address severe glenoid deficiency.

Methods: Retrospective chart review identified patients at a single institution undergoing rTSA using the glenoid vault reconstruction system (VRS) between 2017 and 2022. Radiographic evaluation, range of motion and patient-reported outcome (PRO) measures, complications, and re-operations were assessed.

The effect of factors from different time points on psychological readiness following ACL reconstruction.

Objective: The purpose of this study was to examine factors correlated with psychological readiness to return to activity after ACLR.

Design: cross sectional study.

Setting: controlled laboratory.

Shifts in the swine nasal microbiota following challenge in a longitudinal study.

is a widespread, highly infectious bacterial pathogen that causes respiratory disease in swine and increases the severity of respiratory infections caused by other viral or bacterial pathogens. However, the impact of infection on the swine respiratory microbiota has not been thoroughly investigated. Here, we aim to assess the influence of infection on the community structure and abundance of members of the swine nasal microbiota.

No Deficits in Functional Outcomes of the Contralateral Limb Are Seen When the Hamstring Is Harvested for Augmentation of Small Diameter Ipsilateral Hamstring Autograft.

Purpose: To evaluate clinical outcomes of the contralateral, nonoperative limb in patients undergoing contralateral hamstring (HS) autograft harvest compared with patients undergoing ipsilateral HS autograft harvest alone.

Methods: This study included 96 patients who underwent isolated anterior cruciate ligament reconstruction (ACLR) using 4-stranded HS autograft (n = 85) or 4-stranded HS autograft augmented with contralateral HS (n = 13) due to inclusion of ipsilateral graft diameter <8 mm. Isokinetic flexion and extension strength and dynamic performance of the ipsilateral and contralateral limbs and limb symmetry index (LSI) were evaluated at 6 months' postoperatively.

Prior infection with Bordetella bronchiseptica enhanced colonization but not disease with Streptococcus suis.

Bordetella bronchiseptica and Streptococcus suis are widely distributed swine pathogens. B. bronchiseptica is a primary pathogen and causes atrophic rhinitis and bronchopneumonia.

Knee extensor torque-velocity relationships following anterior cruciate ligament reconstruction.

Background: The inherent nature of the torque-velocity relationship is the inverse nature between the velocity of muscle contraction and torque production and is an indication of muscle function. The purpose of this study was to characterize the torque-velocity relationship in the quadriceps following anterior cruciate ligament reconstruction compared to healthy limbs.

Methods: 681 participants were included, 493 of which were patients at least four months following anterior cruciate ligament reconstruction (23.

Hip Strength Recovery After Anterior Cruciate Ligament Reconstruction.

Background: Return-to-play (RTP) assessment after anterior cruciate ligament reconstruction (ACLR) rarely includes hip strength.

Hypothesis: It was hypothesized that (1) patients after ACLR will have weaker hip abduction (AB) and adduction (AD) strength compared with the contralateral limb, with larger deficits in women, (2) there will be a correlation between hip and thigh strength ratios and patient-reported outcomes (PROs), and (3) hip AB and AD strength will improve over time.

Study Design: Descriptive laboratory study.

Comparison of Patient-Reported Outcomes, Strength, and Functional Performance in Primary Versus Revision Anterior Cruciate Ligament Reconstruction.

Background: Clinical outcomes after revision anterior cruciate ligament reconstruction (ACLR) are not well understood.

Hypothesis: Patients undergoing revision ACLR would demonstrate worse patient-reported outcomes and worse limb symmetry compared with a cohort undergoing primary ACLR.

Study Design: Cohort study; Level of evidence, 3.

Resilience of swine nasal microbiota to influenza A virus challenge in a longitudinal study.

Influenza A virus (IAV) is an important contributing pathogen of porcine respiratory disease complex (PRDC) infections. Evidence in humans has shown that IAV can disturb the nasal microbiota and increase host susceptibility to bacterial secondary infections. Few, small-scale studies have examined the impact of IAV infection on the swine nasal microbiota.

Influence of interim functional assessments on patient outcomes at the time of return to activity following ACL-reconstruction.

Objective: To compare patient outcomes at the time of the return to activity (RTA) progression between those with a prior interim assessment and those without.

Design: Retrospective, Cohort Study.

Setting: Controlled Laboratory.

Postoperative Rehabilitation After Superior Labrum Anterior Posterior Repair.

The 4-phase rehabilitation protocol outlined in this article provides a comprehensive 26-week program to return patients with superior labrum anterior posterior repairs to their preinjury states. It is guided by the principle of gradual return to preinjury function while preserving the integrity of the surgical repair. Objective criteria are present at the conclusion of each phase to ensure patients are progressing appropriately.

Meniscal and Articular Cartilage Predictors of Outcome After Revision ACL Reconstruction: A 6-Year Follow-up Cohort Study.

Background: Meniscal and chondral damage is common in the patient undergoing revision anterior cruciate ligament (ACL) reconstruction.

Purpose: To determine if meniscal and/or articular cartilage pathology at the time of revision ACL surgery significantly influences a patient's outcome at 6-year follow-up.

Study Design: Cohort study; Level of evidence, 3.

Failed and Revision Rotator Cuff Repair.

With an increasing incidence of rotator cuff repairs (RCRs), and by extension, RCR failures, surgeons must be facile in the diagnosis and management of this complication. A detailed history and physical exam as well as familiarity with the patient-specific, anatomic, and technical variables that increase a patient's risk of RCR failure is critical. Modifiable factors should be addressed prior to revision RCR and non-modifiable factors should be examined as they may disqualify an individual from a revision attempt.

Comparing bupivacaine alone to liposomal bupivacaine plus bupivacaine in interscalene blocks for total shoulder arthroplasty: a randomized, non-inferiority trial.

Introduction: Interscalene brachial plexus blocks are a commonly performed procedure to reduce pain following total shoulder arthroplasty. Liposomal bupivacaine has been purported to prolong the duration of brachial plexus blocks for up to 72 hours; however, there has been controversy surrounding the analgesic benefits of this drug. Our hypothesis was that an interscalene block performed with bupivacaine alone would be non-inferior to a combination of liposomal bupivacaine and bupivacaine with respect to opioid consumption following total shoulder arthroplasty.

Returning to Activity After Anterior Cruciate Ligament Revision Surgery: An Analysis of the Multicenter Anterior Cruciate Ligament Revision Study (MARS) Cohort at 2 Years Postoperative.

Background: Patients with anterior cruciate ligament (ACL) revision report lower outcome scores on validated knee questionnaires postoperatively compared to cohorts with primary ACL reconstruction. In a previously active population, it is unclear if patient-reported outcomes (PROs) are associated with a return to activity (RTA) or vary by sports participation level (higher level vs. recreational athletes).

Disagreement in Pass Rates Between Strength and Performance Tests in Patients Recovering From Anterior Cruciate Ligament Reconstruction.

Background: Performance on strength and functional tests is often used to guide postoperative rehabilitation progress and return to activity decisions after anterior cruciate ligament reconstruction (ACLR). Clinicians may have difficulty in determining which criteria to follow if there is disagreement in performance outcomes among the tests.

Purpose/hypothesis: The purpose of this study was to compare pass rates between strength tests and single-leg hop (SLHOP) tests among men and women and between patients with lower and higher preinjury activity levels recovering from ACLR.

Predicting Anterior Cruciate Ligament Reinjury From Return-to-Activity Assessments at 6 Months Postsurgery: A Prospective Cohort Study.

Context: Return-to-activity (RTA) assessments are commonly administered after anterior cruciate ligament reconstruction (ACLR) to manage the patient's postoperative progressions back to activity. To date, few data are available on the clinical utility of these assessments to predict patient outcomes such as secondary anterior cruciate ligament (ACL) injury once the athlete has returned to activity.

Objective: To identify the measures of patient function at 6 months post-ACLR that best predict RTA and second ACL injury at a minimum of 2 years after ACLR.

Bacterin Vaccination Provides Insufficient Protection Against Subspecies Infection in Pigs.

subspecies (SEZ) is a zoonotic pathogen capable of causing severe disease in many mammalian species. Historically, SEZ has not been a common cause of disease in pigs in North America; however, in 2019, SEZ caused mortality events leading to severe illness and 30-50% mortality in exposed animal groups. Because of the rapid progression of disease, it is important to investigate intervention strategies to prevent disease development.

Patient age at time of reverse shoulder arthroplasty remains stable over time: a 7.5-year trend evaluation.

Purpose: There is a common belief among some shoulder surgeons that the increased utilization of reverse shoulder arthroplasty (RSA) is driven by the operation being performed in younger patients. The primary purpose of this study was to evaluate the change in patient age at the time of primary RSA in the USA.

Methods: All patients undergoing primary RSA (January 2011-June 2018) were identified in the Mariner database.

Shoulder Arthroplasty in the Aging Athlete: Considerations in the Younger Patient.

Shoulder arthroplasty has become an increasingly common option for the management of glenohumeral osteoarthritis in younger, higher demand, and athletic individuals. Patients with shoulder arthritis in whom nonsurgical measures fail and who are not candidates for arthroscopic treatment may be evaluated for shoulder arthroplasty. Available options include shoulder hemiarthroplasty, with or without biologic glenoid resurfacing, total shoulder arthroplasty, and less commonly reverse total shoulder arthroplasty.

Nonarthroplasty Management of Shoulder Arthritis in the Aging Athlete: Biologics and Arthroscopy.

Glenohumeral arthritis in athletes or young and active individuals constitutes a challenging clinical problem, and multiple factors should be taken into consideration when deciding on nonsurgical or surgical treatment in this patient cohort. Selection of therapy should be based on clinical evidence, but the therapeutic strategy should align with patient expectations. Patient education on the nature and progression of shoulder osteoarthritis may facilitate the decision-making process regarding the selection of treatment.