Stephen S. Burkhart

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We use the acronym SICK to refer to the findings one sees in this syndrome (Scapular malposition, Inferior medial border prominence, Coracoid pain and malposition, and dysKinesis of scapular movement). This recently recognized overuse muscular fatigue syndrome is yet another cause of shoulder pain in the throwing athlete who presents with dead arm(More)
PROLOGUE: Several years ago, when we began to question microinstability as the universal cause of the disabled throwing shoulder, we knew that we were questioning a sacrosanct tenet of American sports medicine. However, we were comfortable in our skepticism because we were relying on arthroscopic insights, clinical observations, and biomechanical data,(More)
PURPOSE Our goal was to establish a consistent methodology for quantifying glenoid bone loss by arthroscopic means. TYPE OF STUDY This study was an anatomic investigation of glenoid structure and its consistent anatomic landmarks as determined by arthroscopic means in live subjects and by direct measurement in fresh-frozen cadaver specimens. METHODS We(More)
PURPOSE The purpose of this study was to determine if three-dimensional computed tomography (3-D CT) scans of the glenoid can be used to accurately quantify, by means of a glenoid index, bone loss in patients with anterior glenohumeral instability, and to compare the results with arthroscopic measurements to determine if the 3-D CT scan can preoperatively(More)
One hundred two type II SLAP lesions without associated anterior instability, Bankart lesion, or anterior inferior labral pathology were surgically treated under arthroscopic control. There were three distinct type II SLAP lesions based on anatomic location: anterior (37%), posterior (31%), and combined anterior and posterior (31%). Preoperatively, the(More)
PURPOSE The purpose of this study was to determine the amount of glenoid bone loss required to produce an inverted pear glenoid. TYPE OF STUDY Two-part anatomic study involving live subjects and cadaveric specimens. METHODS From June 2000 to April 2002, 53 patients (mean age, 30 +/- 13 years) underwent arthroscopic evaluation and treatment with a(More)
Twenty fresh frozen cadaver shoulders were dissected in order to study the rotator cable-crescent complex. The rotator crescent is a term that we have used to describe the thin, crescent-shaped sheet of rotator cuff comprising the distal portions of the supraspinatus and infraspinatus insertions. The crescent was found to be bounded on its proximal margin(More)
PURPOSE The purpose of this article is 2-fold: To report the long-term functional results of arthroscopic rotator cuff repair (average, 3.5 years in this study), and to analyze results by tear size and repair technique (margin convergence v direct tendon-to-bone repair). TYPE OF STUDY Case series. METHODS Between September 1993 and April 1997, 62(More)
PURPOSE The purpose of this study was to evaluate the diagnostic accuracy of magnetic resonance imaging (MRI) scan assessments of subscapularis tendon tears by comparing the preoperative MRI interpretations of radiologists with the actual results determined by arthroscopic evaluations of the same shoulders. METHODS This retrospective review comprised all(More)
Previous experimental studies of failure of rotator cuff repair have involved a single pull to ultimate load. Such an experimental design does not represent the cyclic loading conditions experienced in vivo. We created 1 cm x 2 cm rotator cuff defects in 16 cadaver shoulders, repaired each defect with transosseous simple sutures, and cyclically loaded the(More)