Acromioclavicular Disorders
Acromioclavicular Disorders Harris S. Slone Spero G. Karas DEFINITION A number of pathologic processes may affect the acromioclavicular (AC) joint, altering anatomy, biomechanics, and normal function. The most common of…
Arthroscopic Treatment of Subacromial Impingement
Arthroscopic Treatment of Subacromial Impingement Gregory A. Tayrose Spero G. Karas DEFINITION Impingement syndrome was originally described by Neer20 in 1972 as a chronic impingement of the rotator cuff beneath…
Throwing Shoulder
Throwing Shoulder Brian C. Werner Stephen F. Brockmeier DEFINITION The repetitive acceleration and deceleration of the arm during the throwing motion places the thrower’s shoulder in extreme positions and under…
Arthroscopic Treatment of Superior Labral Anterior Posterior (SLAP) Tears
Arthroscopic Treatment of Superior Labral Anterior Posterior (SLAP) Tears Thomas H. Wuerz Davietta C. Butty Annemarie K. Tilton Brian J. Cole DEFINITION Superior labral anterior posterior (SLAP) tears are characterized…
Arthroscopic Treatment of Multidirectional Shoulder Instability
Arthroscopic Treatment of Multidirectional Shoulder Instability Steven B. Cohen DEFINITION Neer and Foster20 described the concept of multidirectional instability (MDI) of the shoulder in detail in 1980. This established the…
Arthroscopic Treatment of Anterior Shoulder Instability
Arthroscopic Treatment of Anterior Shoulder Instability Robert A. Arciero Anthony Parrino DEFINITION Glenohumeral stability depends on static and dynamic restraints to ensure stable yet unconstrained range of motion. Laxity is…
Arthroscopic Treatment of Posterior Shoulder Instability
Arthroscopic Treatment of Posterior Shoulder Instability Fotios P. Tjoumakaris James P. Bradley DEFINITION Posterior shoulder instability results in pathologic glenohumeral translation ranging from mild subluxation to traumatic dislocation. Most patients…
Shoulder Arthroscopy: The Basics
Shoulder Arthroscopy: The Basics Elizabeth Matzkin Craig R. Bottoni DEFINITION The shoulder is a spheroidal multiaxial joint stabilized not only by its bony anatomy but also by the surrounding muscles…
