The Journal of Bone and Joint Surgery 79:460-9 (1997)
© 1997 The Journal of Bone and Joint Surgery, Inc.
Instructional Course Lecture |
Instructional Course Lectures, The American Academy of Orthopaedic Surgeons - Complex Instability of the Elbow*
B. F. MORREY, M.D. , ROCHESTER, MINNESOTA
*An Instructional Course Lecture, The American Academy of Orthopaedic Surgeons
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Introduction
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Complex instability of the elbow is the condition resulting from both the injury and the resultant loss of function due to damage to the articular surface and the ligamentous structures that stabilize the elbow. The clinical presentation may be subluxation, or it may be incongruity with malalignment in either the lateral or the anteroposterior plane. The specific goal of this report is to provide a rationale for the reliable treatment of a spectrum of these acute injuries. To accomplish this, the relative contributions of the articulation and the ligaments to normal stability, as well as their interactions, must first be defined.
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Contributions to Normal Stability
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Articular Elements
For the purpose of this discussion, it is assumed that the distal part of the humerus is intact. Therefore, the elements of the articulation to be discussed include the radial head and the proximal part of the ulna, specifically the coronoid. The ligamentous structures include the medial collateral ligament . . . [Full Text of this Article]

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