Glenoid labral articular disruption lesions in the setting of first-time anterior shoulder instability.

Purpose: The purpose of this study was to compare the clinical outcomes and rates of recurrent instability of patients following arthroscopic Bankart repair with and without GLAD lesions in the setting of first-time anterior instability events.

Methods: This was a retrospective comparative case series of consecutive patients with GLAD lesions in the setting of first-time anterior instability events who underwent arthroscopic Bankart repair. Patients with GLAD lesions (cases) were matched in a 1:3 ratio for sex, age, BMI, and sport to those without GLAD lesions (controls).

Arthroscopic Repair With Side-to-Side Sutures for Full-Thickness Transtendinous Supraspinatus Tears Versus Traditional Tendon to Bone Fixation: Outcomes and Retear Rates at 4-Year Follow-up.

Background: Full-thickness, transtendinous supraspinatus rotator cuff tears involve a significant portion of the remanent tendon attached to the footprint.

Purpose: To compare outcomes and failure rates for arthroscopic side-to-side (STS) suture repair for transtendinous tears versus traditional double-row repair for common tendon-to-bone type tears.

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

Predictors of Failing Same-Day Discharge after Shoulder Arthroplasty: Developing a Model to Improve Outcomes and Reduce Healthcare Cost.

Background: With increasing efforts to transition shoulder arthroplasty to the ambulatory surgery setting there is increased interest in predictive factors of failure of same day discharge (SDD). The purpose of this study was to identify predictors of failing SDD, defined as requiring at least an overnight hospital stay after shoulder arthroplasty, and to develop a predictive model to identify which patients may require postoperative hospital admission.

Methods: A retrospective review of a consecutive series of patients with rotator cuff arthropathy or osteoarthritis treated with primary anatomic (aTSA) or reverse total shoulder arthroplasty (rTSA) between January 2019 and June 2023 was conducted.

Minimizing Risk of Recurrent Instability Following Surgical Stabilization for Anterior Glenohumeral Instability.

The most common surgical treatment options for anterior shoulder instability include the arthroscopic Bankart repair with or without adjunct procedures such as remplissage, the open Bankart repair, the Bristow-Latarjet procedure, and anterior free bone block transfers. The choice between non-operative treatment and 1 of the aforementioned procedures inherently impact the risk of recurrent instability. The purpose of this article is to discuss the timing of surgery in the in-season athlete, evaluate the evolving concept of glenoid and bipolar bone loss, and to discuss various surgical treatment options with a specific focus on minimizing recurrent instability rates following surgical stabilization.

Cadaveric Specimens Used in Studies Evaluating Bone Loss in Anterior Shoulder Instability Are Not Representative of the Affected Patient Population: A Systematic Review.

Purpose: To examine the age, sex, and site of evaluated bone loss in specimens used in cadaveric studies assessing the role of bone loss in anterior shoulder instability and to evaluate whether these studies evaluate glenoid and humeral bone loss separately or as a combined biomechanical problem.

Methods: Embase, MEDLINE, Scopus, Web of Sciences, Google Scholar, and Cochrane databases were queried electronically in April 2023 for cadaveric studies examining the relationship between anatomic structures and recurrent anterior shoulder instability. The review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses criteria.

Editorial Commentary: Open Bankart Procedure for Anterior Shoulder Instability Is Recommended for Contact Athletes With Bony Bankart Fractures or Approximately 10% Glenoid Bone Loss.

Recurrent anterior shoulder instability with subcritical bone loss is a challenging clinical scenario. Many treatment options have been described, including arthroscopic Bankart repair, arthroscopic Bankart repair plus remplissage, open Bankart repair, and the Latarjet procedure. Arthroscopic Bankart repair alone has higher rates of failure in high-risk patient populations, especially at long-term follow-up.

TWINKLE: An open-source two-photon microscope for teaching and research.

Many laboratories use two-photon microscopy through commercial suppliers, or homemade designs of considerable complexity. The integrated nature of these systems complicates customization, troubleshooting, and training on the principles of two-photon microscopy. Here, we present "Twinkle": a microscope for Two-photon Imaging in Neuroscience, and Kit for Learning and Education.

Opioid Use Prior to Arthroscopic Rotator Cuff Repair is Associated with Inferior Patient Reported Outcomes and Lower Rates of Achieving Patient Acceptable Symptom State in the Early Postoperative Period.

Introduction: Preoperative opioid use is a risk factor for complications and diminished outcomes following rotator cuff repair (RCR). The purpose of this study was to evaluate the influence of preoperative opioid use on clinically relevant parameters of patient reported outcomes (PROs) following RCR.

Methods: A consecutive series of patients undergoing arthroscopic RCR from 2018 to 2020 were included.

Preoperative imaging predicts coracoid graft size and restoration of the glenoid track in Latarjet procedures.

Background: Glenoid bone grafting procedures are often utilized to address glenoid bone loss in patients with recurrent shoulder instability. The purpose of this study was to determine if preoperative advanced imaging can accurately predict coracoid graft size and conversion of off-track to on-track Hill-Sachs lesions in patients undergoing Latarjet procedures.

Methods: Patients who underwent Latarjet procedure for shoulder instability at a single institution from 2012 to 2020 with preoperative and postoperative advanced shoulder imaging (computerized tomography or magnetic resonance imaging scans) were retrospectively reviewed.

Optimal Nonarthroplasty Management of Massive Irreparable Rotator Cuff Tears: A Case-Based Approach.

The management of massive irreparable rotator cuff tears is commonly debated without consensus. With reverse shoulder arthroplasty often reserved for the older patient (older than 60 years) with rotator cuff arthropathy, treatment of the younger patient population (younger than 60 years) without arthritis is more complex. When determining a surgical approach, the clinical presentation including history and physical examination plays a vital role in the decision tree.

Interpositional Bioresorbable Scaffold-Anchor Appears Non-inferior to a Standard Anchor in the Treatment of Rotator Cuff Tears.

Background: Failure after rotator cuff repair is typically due to a loss of integrity of the bone-tendon interface. The BioWick anchor (Zimmer-Biomet) is an interpositional scaffold-anchor that was developed to improve tendon-bone healing. The purpose of this study was to determine the clinical efficacy of this novel anchor compared with a standard anchor with respect to retear rates and patient outcomes.

Dual mini-fragment plate fixation of midshaft clavicle fractures demonstrates fewer union complications but similar patient-reported outcomes compared to nonoperative management: a cohort study with mean 3.4-year follow-up.

Background: Although open reduction and internal fixation is the gold standard treatment for displaced midshaft clavicle fractures, recent studies have advocated for nonoperative management, citing high rates of reoperation associated with operative intervention. However, no studies have compared nonoperative management to open reduction and internal fixation with dual-plate fixation, which may be associated with lower rates of reoperation compared to single-plate fixation. The purpose of this study was to compare the complications and patient-reported outcomes of dual mini-fragment plate fixation to nonoperative management for displaced midshaft clavicle fractures.

Comparison of Revision and Redislocation Rates After First-Time Anterior Shoulder Instability Between Subluxators and Dislocators: A Midterm Outcome Study.

Background: Anterior shoulder instability is a common pathology seen especially in young men and highly active patient populations. Subluxation is a commonly encountered clinical issue, yet little is known about the effects of first-time subluxation compared with dislocation on shoulder stability and clinical outcomes after surgical stabilization.

Purpose: To compare revision and redislocation rates as well as patient-reported outcomes (PROs) between subluxators and dislocators after a first-time anterior shoulder instability event.

BIFROST: A method for registering diverse imaging datasets of the brain.

Imaging methods that span both functional measures in living tissue and anatomical measures in fixed tissue have played critical roles in advancing our understanding of the brain. However, making direct comparisons between different imaging modalities, particularly spanning living and fixed tissue, has remained challenging. For example, comparing brain-wide neural dynamics across experiments and aligning such data to anatomical resources, such as gene expression patterns or connectomes, requires precise alignment to a common set of anatomical coordinates.

Shoulder Periprosthetic Joint Infection: Principles of Prevention, Diagnosis, and Treatment.

➢ Shoulder periprosthetic joint infection (PJI) is a potentially devastating complication after arthroplasty and is projected to rise with increasing numbers of performed arthroplasties, particularly reverse shoulder arthroplasties.➢ Important considerations for the diagnosis and treatment of shoulder PJI include age, sex, implant type, primary compared with revision shoulder surgery, comorbidities, and medications (i.e.

Anatomic restoration of lateral humeral offset and humeral retroversion optimizes functional outcomes following reverse total shoulder arthroplasty.

Cadaveric and computer simulations suggest lateral humeral offset (LHO) and humeral retroversion (HR) are associated with strength and range of motion (ROM) after reverse total shoulder arthroplasty (rTSA), butin vivodata is lacking. This study aimed to evaluate the effects of implant parameters (i.e.

TWINKLE: An open-source two-photon microscope for teaching and research.

Many laboratories use two-photon microscopy through commercial suppliers, or homemade designs of considerable complexity. The integrated nature of these systems complicates customization, troubleshooting, and training on the principles of two-photon microscopy. Here, we present "Twinkle": a microscope for Two-photon Imaging in Neuroscience, and Kit for Learning and Education.

Links between climatic histories and the rise and fall of a Pacific chiefdom.

Sea level rise and climate change are shaping present societies, particularly those on oceanic islands. Few historical examples could serve as references for these changes. One such potential model is the Saudeleur Dynasty with its capital Nan Madol on the Pacific Island of Pohnpei.

Editorial Commentary: Arthroscopic Superior Capsular Reconstruction Acts as a Biologic Spacer by Increasing Acromiohumeral Distance.

Massive rotator cuff tears can be successfully treated with a wide variety of surgical procedures depending on many patient factors. The arthroscopic superior capsular reconstruction (SCR) is a good procedure for a younger patient with pseudoparesis, no lag signs, and a primary complaint of pain. How does the SCR work to achieve a good clinical outcome? One theory is that it restores the force couple and normal kinematics of the shoulder, but more evidence supports the theory that it acts as a biologic spacer.