Traditionally the classification of shoulder instability has been based primarily on etiology and the direction of the instability. In other words, traumatic versus atraumatic in onset and anterior, posterior, or…
Microanatomy and cell biology The hyaline cartilage of the articular surface is essentially acellular and consists of horizontally arranged collagen fibers in proteoglycan macromolecules. The boundaries of the joint cavity…
ABOUT THE EXPERTS Frederick A. Matsen III, MD, is a Professor of Orthopaedics and Sports Medicine at the University of Washington. His life in shoulder began with a fellowship in…
ABOUT THE EXPERT Gilles Walch, MD, is an orthopedic surgeon specialized in shoulder surgery. He is a senior partner at the Shoulder Department of Centre Orthopedique Santy and at Hospital…
Introduction The open inferior capsular shift operation as described by Neer is a versatile operation that allows adjustment of technique to match identified pathology in patients with glenohumeral instability. Shoulder…
Introduction Osseous lesions in the humeral head and glenoid are commonly observed in patients with anterior shoulder instability. The prevalence of bone loss and pathologic bony changes increases with recurrent…
Introduction As noted in Chapter 35 , the basic science and clinical characteristics of multidirectional instability (MDI) have helped identify this clinical entity more thoroughly. Subsequent research efforts have established…
Shoulder sepsis can have a devastating impact on shoulder function, particularly if diagnosis and treatment are delayed or inadequate. The general principles in the pathogenesis of shoulder sepsis are similar…
ABOUT THE EXPERT Eiji Itoi, MD, PhD, is an emeritus professor of Tohoku University, Sendai, Japan. He had a shoulder fellowship year with Dr. Shiro Tabata in 1989. He then…
Introduction and epidemiology Posterior shoulder instability occurs on a spectrum ranging from painful posterior labral tears with minimal instability to symptomatic posterior subluxation, all the way to locked dislocation events….
