Clinical Orthopaedics and Related Research ®

A Publication of The Association of Bone and Joint Surgeons ®

Symposium: Complex Issues in Glenohumeral Instability 10 articles

Articles

Arthroscopic Bristow-Latarjet Combined With Bankart Repair Restores Shoulder Stability in Patients With Glenoid Bone Loss

Pascal Boileau MD, Charles-Édouard Thélu MD, Numa Mercier MD, Xavier Ohl MD, Robert Houghton-Clemmey FRCS, Michel Carles MD, PhD, Christophe Trojani MD, PhD

Arthroscopic Bankart repair alone cannot restore shoulder stability in patients with glenoid bone loss involving more than 20% of the glenoid surface. Coracoid transposition to prevent recurrent shoulder dislocation according to Bristow-Latarjet is an efficient but controversial procedure.

Shoulder Instability in the Setting of Bipolar (Glenoid and Humeral Head) Bone Loss: The Glenoid Track Concept

Suraj Trivedi MD, Michael L. Pomerantz MD, Daniel Gross MD, Petar Golijanan BS, Matthew T. Provencher MD

An assortment of variables has been used in predicting anterior shoulder instability resulting from pathologic engagement of Hill-Sachs lesions on the glenoid. The glenoid track is a unique biomechanical model that relates both Hill–Sachs and bony Bankart lesions to predict shoulder engagement. We examined the glenoid track concept to determine if it provides a model that unifies glenoid rim and humeral head bone loss in predicting engagement.

The Open Latarjet Procedure Is More Reliable in Terms of Shoulder Stability Than Arthroscopic Bankart Repair

Charles Bessière MD, Christophe Trojani MD, PhD, Michel Carles MD, PhD, Saurabh S. Mehta MS, FRCS (Ed) (Tr & Orth), Pascal Boileau MD

Arthroscopic Bankart repair and open Latarjet bone block procedure are widely considered mainstays for surgical treatment of recurrent anterior shoulder instability. The choice between these procedures depends mainly on surgeon preference or training rather than published evidence.

A Large Humeral Avulsion of the Glenohumeral Ligaments Decreases Stability That Can Be Restored With Repair

Kyoung Jin Park MD, PhD, Mallika Tamboli, Lauren Y. Nguyen, Michelle H. McGarry MS, Thay Q. Lee PhD

Humeral avulsion of the glenohumeral ligaments (HAGL) has become a recognized cause of recurrent shoulder instability; however, it is unknown whether small and large HAGL lesions have similarly destabilizing effects and if large lesion repair results in restoration of stability.

Remplissage Versus Latarjet for Engaging Hill-Sachs Defects Without Substantial Glenoid Bone Loss: A Biomechanical Comparison

Ryan M. Degen MD, Joshua W. Giles BESc, James A. Johnson PhD, George S. Athwal MD, FRCSC

Recurrent shoulder instability is commonly associated with Hill-Sachs defects. These defects may engage the glenoid rim, contributing to glenohumeral dislocation. Two treatment options to manage engaging Hill-Sachs defects are the remplissage procedure, which fills the defect with soft tissue, and the Latarjet procedure, which increases glenoid arc length. Little evidence exists to support one over the other.

External Rotation Immobilization for Primary Shoulder Dislocation: A Randomized Controlled Trial

Daniel B. Whelan MD, MSc, Robert Litchfield MD, Elizabeth Wambolt BSc(HK), CCRP, Katie N. Dainty PhD

The traditional treatment for primary anterior shoulder dislocations has been immobilization in a sling with the arm in a position of adduction and internal rotation. However, recent basic science and clinical data have suggested recurrent instability may be reduced with immobilization in external rotation after primary shoulder dislocation.

Biceps Detachment Decreases Joint Damage in a Rotator Cuff Tear Rat Model

Stephen J. Thomas PhD, ATC, Katherine E. Reuther BS, Jennica J. Tucker BS, Joseph J. Sarver PhD, Sarah M. Yannascoli MD, Adam C. Caro DVM, Pramod B. Voleti MD, Sarah I. Rooney MSE, David L. Glaser MD, Louis J. Soslowsky PhD

Pathology in the long head of the biceps tendon often occurs in patients with rotator cuff tears. Arthroscopic tenotomy is the most common treatment. However, the role of the long head of the biceps at the shoulder and the consequences of surgical detachment on the remaining shoulder structures remain unknown.

Effects of External Rotation on Anteroposterior Translations in the Shoulder: A Pilot Study

Andrew J. Brown BS, Richard E. Debski PhD, Carrie A. Voycheck PhD, Patrick J. McMahon MD

Using physical examination to make the diagnosis of shoulder instability can be difficult, because typical examination maneuvers are qualitative, difficult to standardize, and not reproducible. Measuring shoulder translation is especially difficult, which is a particular problem, because measuring it inaccurately may result in improper treatment of instability.

How Does External Rotation Bracing Influence Motion and Functional Scores After Arthroscopic Shoulder Stabilization?

Bob Yin MD, David Levy MD, Molly Meadows MD, Todd Moen MD, Prakash Gorroochurn PhD, Edwin R. Cadet MD, William N. Levine MD, Christopher S. Ahmad MD

After arthroscopic shoulder stabilization, the loss of motion or delayed recovery of motion remains a clinical problem and may lead to poor patient satisfaction. There remains no consensus regarding the optimal position for postoperative immobilization and it is not known whether the position for shoulder immobilization has an effect on motion and functional recovery.