Restoration of the native humeral anatomy during stemless anatomic total shoulder arthroplasty: a radiographic comparison of intramedullary versus freehand resection.

Background: During anatomic total shoulder arthroplasty (aTSA), the humeral head can be resected with or without the use of an intramedullary cutting guide, the former referred to as intramedullary (IM) resection and the latter referred to as freehand (FH) resection. Outcomes following aTSA are predicated upon the restoration of the native humeral anatomy, which can be more challenging with stemless implants. To date, no studies have determined which method of humeral head resection is superior in restoring native anatomy.

Effect of Perioperative Opioid Use on Patients Undergoing Hip Arthroscopy.

Background: Opioids are commonly used to treat postoperative pain; however, guidelines vary regarding safe opioid use after hip arthroscopy.

Purpose/hypothesis: The purposes were to (1) identify risk factors for persistent opioid use, (2) assess the effect of opioid use on outcomes, and (3) describe common opioid prescribing patterns after hip arthroscopy. It was hypothesized that preoperative opioid use would affect complication rates and result in greater postoperative opioid use.

The safe zones for endoscopic proximal hamstring repair: a cadaveric assessment of standard portal placement and their relationship to major neurovascular structures.

Purpose: To define the anatomical relationship of the major neurovascular structures to the standard endoscopic portals used in endoscopic hamstring repair. A secondary outcome was to determine the safest angle of insertion from each standard portal.

Methods: Endoscopic portals were established in the 3 standard locations (lateral, medial, and inferior) and Steinmann pins inserted at various angles.

Evaluating the role of graft integrity on outcomes: clinical and imaging results following superior capsular reconstruction.

Background: Superior capsular reconstruction (SCR) addresses massive, irreparable rotator cuff tears in young patients. The purpose of this study was to retrospectively evaluate clinical outcomes and graft integrity in patients following SCR.

Methods: Thirty-four consecutive patients undergoing SCR by 2 surgeons with minimum 2-year follow-up were identified.

Infection Risk Reduction Program on Pathogens in High School and Collegiate Athletic Training Rooms.

Background: Athletic training rooms have a high prevalence of bacteria, including multidrug-resistant organisms, increasing the risk for both local and systematic infections in athletes. There are limited data outlining formal protocols or standardized programs to reduce bacterial and viral burden in training rooms as a means of decreasing infection rate at the collegiate and high school levels.

Hypothesis: Adaptation of a hygiene protocol would lead to a reduction in bacterial and viral pathogen counts in athletic training rooms.

Predicting adverse events, length of stay, and discharge disposition following shoulder arthroplasty: a comparison of the Elixhauser Comorbidity Measure and Charlson Comorbidity Index.

Background: Rising health care expenditures and the adoption of bundled-care initiatives require efficient resource allocation for shoulder arthroplasty. To determine a reliable and accessible metric for implementing perioperative care pathways, we compared the accuracy of the Elixhauser Comorbidity Measure (ECM) and Charlson Comorbidity Index (CCI) for predicting adverse events and postoperative discharge destination after shoulder arthroplasty.

Materials And Methods: The National Inpatient Sample was queried for patients who underwent total shoulder arthroplasty or reverse total shoulder arthroplasty between 2002 and 2014.

Changes in Lumbar Endplate Area and Concavity Associated With Disc Degeneration.

Study Design: Retrospective image-based analysis.

Objective: To measure endplate three-dimensional (3D) geometry, endplate changes in vivo and to investigate correlations between disc degeneration and endplate 3D geometry dependent on symptoms of low back pain (LBP).

Summary Of Background Data: It has been hypothesized that alteration of load transmission from the nucleus pulposus to the annulus fibrosus affects vertebral endplate geometry.

Preexisting Rotator Cuff Tears as a Predictor of Outcomes in National Football League Athletes.

Background: A preexisting rotator cuff tear may affect the draft status and career performance of National Football League (NFL) players.

Hypothesis: Preexisting rotator cuff tears decrease a player's draft status, performance, and longevity in the NFL.

Study Design: Retrospective cohort study.

Effect of Arthroscopic Evaluation of Acute Ankle Fractures on PROMIS Intermediate-Term Functional Outcomes.

Background: Following open reduction internal fixation (ORIF) of unstable ankle fractures, some patients have persistent pain and poor outcomes. This may be secondary to intra-articular injuries that occur at the time of fracture, which occur in up to 88% of fractures. Ankle arthroscopy at the time of ORIF has been proposed to address these intra-articular injuries.

Defining a mismatch: differences in usage of social networking sites between medical students and the faculty who teach them.

Background: Use of social networking sites (SNS) by medical students is increasing, and some students lack awareness of pitfalls arising from the intersection of social networking and medicine. Many institutions have developed guidelines on using SNS, but they are insufficient for students. Educators need new methods to train students on the appropriate use of this technology, but more information is needed before implementing change.

Pre-existing lumbar spine diagnosis as a predictor of outcomes in National Football League athletes.

Background: It is currently unknown how pre-existing lumbar spine conditions may affect the medical evaluation, draft status, and subsequent career performance of National Football League (NFL) players.

Purpose: To determine if a pre-existing lumbar diagnosis affects a player's draft status or his performance and longevity in the NFL.

Study Design: Cohort study; Level 3.

The impact of a cervical spine diagnosis on the careers of National Football League athletes.

Study Design: Cohort study.

Objective: To determine the effect of cervical spine pathology on athletes entering the National Football League.

Summary Of Background Data: The association of symptomatic cervical spine pathology with American football athletes has been described; however, it is unknown how preexisting cervical spine pathology affects career performance of a National Football League player.