Lateral Center-Edge Angle Is Not Predictive of Acetabular Articular Cartilage Surface Area: Anatomic Variation of the Lunate Fossa.

Background: Surgical treatment of symptomatic femoroacetabular impingement (FAI) and dysplasia requires careful characterization of acetabular morphology. The lateral center-edge angle (LCEA) is often used to assess lateral acetabular anatomy. Previous work has questioned the LCEA as a surrogate for acetabular contact/articular cartilage surface area because of the variable morphology of the lunate fossa.

Clinical Outcomes After Anterior Shoulder Stabilization in Overhead Athletes: An Analysis of the MOON Shoulder Instability Consortium.

Background: Traumatic anterior shoulder instability is a common condition affecting sports participation among young athletes. Clinical outcomes after surgical management may vary according to patient activity level and sport involvement. Overhead athletes may experience a higher rate of recurrent instability and difficulty returning to sport postoperatively with limited previous literature to guide treatment.

Proximal Humerus Fracture-Dislocation with Laceration of the Axillary Artery: A Case Report.

Background: Proximal humerus fractures account for approximately 4-6% of all fractures. While the majority of these fractures are treated non-operatively, the amount of fracture displacement, concomitant injuries, and patient factors often result in the need for surgical stabilization. Although concomitant neurovascular injury in the setting of low-energy trauma is rare, injury to the surrounding neurovascular structures have previously been reported.

The Anatomy of the Medial Patellofemoral Ligament.

Recurrent patellar dislocation is observed in many patients treated nonoperatively following primary dislocation. Injury to the medial patellofemoral ligament (MPFL) is reported in the majority of patients following dislocation. There is an increased interest in repair or reconstruction of the MPFL for patients experiencing recurrent instability.

Short-term Outcomes of Femoral Neck Fractures Treated With Hemiarthroplasty Using the Anterior Approach.

The direct anterior approach has recently gained popularity for patients undergoing elective total hip arthroplasty. It is unknown whether the reported benefits of the direct anterior approach to elective total hip arthroplasty can be extrapolated to patients undergoing hemiarthroplasty after femoral neck fracture. A retrospective review of 101 patients was performed to compare the outcomes of patients treated with hemiarthroplasty using the direct anterior approach (group 1) with those of patients undergoing the procedure with the posterior, anterolateral, or lateral approach (group 2).

Utility of three-dimensional computed tomography for the surgical management of rib fractures.

Background: Surgical stabilization of flail chest is increasingly recognized as a valid approach to improve pulmonary mechanics in selected trauma patients. The use of two-dimensional (2D) computed tomography (CT) has become almost universal in the assessment of blunt chest trauma and multiple rib fractures. We hypothesized that three-dimensional (3D) CT adds valuable information to the preoperative plan for fixation of rib fractures.

The prevalence and combined prevalences of anatomic factors associated with recurrent patellar dislocation: a magnetic resonance imaging study.

Background: Anatomic factors, including patella alta, increased tibial tubercle-trochlear groove (TT-TG) distance, rotational deformities, and trochlear dysplasia, are associated with dislocation of the patella. Identifying the presence of these anatomic factors both in isolation and in combination may influence treatment in patients with patellar dislocation.

Purpose: The aim of this study was to compare the prevalence and combined prevalences of these anatomic factors using magnetic resonance imaging in a group of patients with and without histories of recurrent dislocation of the patella.

Adverse reaction to metal debris in a patient with acetabular shell loosening 8 years after ceramic-on-metal total hip arthroplasty.

A 41-year-old woman presented 8 years after a left total hip arthroplasty. She complained of progressive groin pain for several months. Radiographs demonstrated a hard-on-hard bearing surface combination and radiolucent lines surrounding the acetabular shell.

Reverse total shoulder arthroplasty versus hemiarthroplasty for proximal humeral fractures: a systematic review.

Objective: To report and compare the clinical and radiographic outcomes of patients treated with reverse shoulder arthroplasty (RSA) or hemiarthroplasty for acute complex proximal humeral fractures.

Data Sources: A systematic review of PubMed, Cumulative Index to Nursing and Allied Health Literature, SportDiscus, and Cochrane Central Register of Controlled Trials was conducted. All published English language studies before January 2014 were reviewed for possible inclusion.

Improved outcomes with combined autologous chondrocyte implantation and patellofemoral osteotomy versus isolated autologous chondrocyte implantation.

Purpose: To compare clinical outcomes of patients undergoing isolated patellofemoral autologous chondrocyte implantation (ACI) and ACI combined with patellofemoral realignment.

Methods: A systematic review was performed by use of PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines/checklist. We searched PubMed, CINAHL (Cumulative Index to Nursing and Allied Health Literature), SportDiscus, and the Cochrane Central Register of Controlled Trials databases from 1946 through February 2012 to determine whether a difference exists in outcomes of combined ACI and osteotomy versus isolated ACI (minimum 2 years' follow-up).

Exceptional functional recovery and return to high-impact sports after Van Nes rotationplasty.

Rotationplasty involves wide resection of lower-extremity malignancy and approximately 180° rotation of the tibia to allow the ankle to function similarly to the former knee joint. It is most commonly used for sarcomas around the knee, such as the distal femur and proximal tibia, in adolescent and young adult patients and is an option for patients with proximal femoral focal deficiency (congenital short femur). Rotationplasty is an alternative to ablative procedures when functional outcome is a consideration or when resection of involved areas and endoprosthetic reconstruction is not possible.

Prevalence of chondral defects in athletes' knees: a systematic review.

Purpose: To determine the prevalence of full-thickness focal chondral defects in the athlete's knee.

Methods: We conducted a systematic review of multiple databases, evaluating studies of the prevalence of articular cartilage defects in athletes. Because of the heterogeneity of data, a meta-analysis could not be performed.