A Comparison of Central Screw versus Post for Glenoid Baseplate Fixation in Reverse Shoulder Arthroplasty Using a Lateralized Glenoid Design.

The purpose of this study was to compare the short-term clinical and radiographic outcomes of a lateralized glenoid construct with either a central screw or post. A multicenter retrospective study was conducted of reverse shoulder arthroplasties (RSAs) with minimum 2-year clinical followup. All RSAs implanted had a 135° neck shaft angle (NSA) and a modular circular baseplate.

Long-term Reverse Total Shoulder Arthroplasty Outcomes: The Effect of the Inferior Shifting of Glenoid Component Fixation.

Backgroud: The 155° Grammont reverse shoulder replacement has a long track record of success, but also a high radiographic notching rate. The increased distance between the scapular pillar and the humeral component theoretically decreases postoperative notching. The glenoid component can be shifted inferiorly relative to the glenoid; however, there also is some concern that shifting the glenoid component too far inferiorly (inferior glenoid component overhang > 3.

Glenoid subchondral bone density in osteoarthritis: A comparative study of asymmetric and symmetric erosion patterns.

Background: Recent studies have shown variations in glenoid bone density in asymmetric wear patterns but have yet to analyze non-arthritic or concentrically worn glenoids.

Questions/purposes: The purpose of this study is to characterize and compare subchondral glenoid bone densities in both non-arthritic and A1, A2, B1, B2 and B3 osteoarthritic glenoids, as well as to assess uniformity in symmetric and asymmetric erosion wear patterns.

Methods: In all, 150 computerized tomography (CT) scans containing equal numbers of non-arthritic (N), A1, A2, B1, B2 and B3 glenoids were segmented semi-automatically.

Comparing the Use of Axillary Radiographs and Axial Computed Tomography Scans to Predict Concentric Glenoid Wear.

Background: Axillary radiographs traditionally have been considered sufficient to identify concentric glenoid wear in osteoarthritic shoulders; however, with variable glenoid wear patterns, assessment with use of computed tomography (CT) has been recommended. The purpose of the present study was to compare the use of axillary radiographs and mid-glenoid axial CT scans to identify glenoid wear.

Methods: Preoperative axillary radiographs and mid-glenoid axial CT scans for 330 patients who underwent anatomic total shoulder arthroplasty were reviewed.

Clinical and radiographic outcomes of the open Latarjet procedure in skeletally immature patients.

Introduction: Recurrent anterior glenohumeral instability has been studied in the young population and limited evidence is available for adolescent patients. Our study is a retrospective review of patients aged <17 years who underwent open Latarjet procedure.

Methods: Forty-five patients were available for review.

Clinical and radiographic outcomes of open Latarjet procedure in patients aged 40 years or older.

Background: The Latarjet procedure is often used to treat shoulder instability in younger patients. Little is reported on the outcomes of this procedure in older (≥40 years) populations. The purpose of this study was to evaluate the clinical and radiographic outcomes of patients aged 40 years or older with recurrent anterior shoulder instability who underwent open Latarjet stabilization.

A modification to the Walch classification of the glenoid in primary glenohumeral osteoarthritis using three-dimensional imaging.

Background: Since Walch and colleagues originally classified glenoid morphology in the setting of glenohumeral osteoarthritis, several authors have reported varying levels of interobserver and intraobserver reliability. We propose several modifications to the Walch classification that we hypothesize will increase interobserver and intraobserver reliability.

Methods: We propose the addition of the B3 and D glenoids and a more precise definition of the A2 glenoid.

Humerus fractures at a regional trauma center: an epidemiologic study.

The purpose of this study was to outline the epidemiologic criteria of humerus fractures after traumatic injuries. All patients admitted to the trauma service at the authors' institution between 2005 and 2011 were entered into a prospective database. The authors obtained data on age, sex, injury mechanism, presence and location of humerus fracture, associated injuries, mortality, Injury Severity Score, treatment, and length of stay.

Conversion arthrodesis for failed first metatarsophalangeal joint hemiarthroplasty.

Background: Arthrodesis is currently the most commonly performed surgical procedure for the treatment of arthritis of the first metatarsophalangeal (MTP) joint. Hemiarthroplasty of the first MTP joint has been shown to have inferior clinical results and higher revision rates. The objective of this study was to assess the clinical outcome of the salvage of failed hallux phalangeal hemiarthroplasty with conversion to arthrodesis.

Posterior cruciate-retaining versus posterior-stabilized total knee arthroplasty: a meta-analysis.

The objective of this meta-analysis was to compare outcomes of posterior cruciate-retaining and posterior stabilized prostheses. A computerized literature search was conducted to identify randomized controlled trials comparing the clinical outcomes of cruciate-retaining and posterior-stabilized designs. The table of contents of four major Orthopaedic journals and the references section of two arthroplasty text books were reviewed to identify other relevant studies.

Nonagenarian hip fracture: treatment and complications.

Background: Hip fracture is a common yet serious injury sustained by the elderly patient and represents one of the major healthcare challenges today. The aim of this study was to better define the unique characteristics of treating nonagenarian peritrochanteric hip fractures and their subsequent complications during hospital stay.

Methods: Seven hundred twenty-two patients underwent surgery for isolated fracture around the femoral neck.

Conversion total hip arthroplasty: a reason not to use cephalomedullary nails.

Previous studies have yet to compare outcomes of conversion to hip arthroplasty from screw and side plate vs cephalomedullary nail. Seventy-six patients at our institution underwent hip conversion after fixation failure. We performed a retrospective chart review to compare perioperative outcomes in these 2 groups.

Peripheral nerve injuries following gunshot fracture of the humerus.

Current best evidence supports observation for peripheral nerve palsies following a fracture of the humerus unless associated with an open fracture. However, the indications for nerve exploration with humerus gunshot fractures are unclear. All patients aged 18 to 89 years who were treated for a gunshot fracture of the humerus at an academic trauma center between 2004 and 2008 were retrospectively reviewed.