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Nineteen patients with the clinical diagnosis of dysfunction of the posterior tibial tendon underwent surgical exploration. Four types of lesions were identified: avulsion of the tendon at the insertion (Group I), mid-substance rupture of the tendon (Group II), an in-continuity tear of the tendon (Group III), and no tendon tear, tenosynovitis only (Group(More)
The objective of this study was to determine pressure-volume relationships in the human knee. Eight normal knees in eight patients undergoing elective arthroscopic surgery were studied to develop pressure-volume curves at 0 degrees, 15 degrees, 30 degrees, 60 degrees, and 80 degrees of flexion, and measure capsular volume at 0 degrees, 15 degrees, 30(More)
An electromyographic (EMG) technique was developed to study simultaneously the eight major elbow muscles in five normal subjects. Recordings of EMG activity in elbow muscles were obtained while the elbow joint was subjected to resisted flexion, extension, abduction, and adduction functions. The results indicate that activity in the major elbow muscles is(More)
Fig. 1. A A roentgenogram of the left iliac bone and hip shows a grossly destructive lesion involving the left ilium just above the hip joint, with considerable new bone formation. Bony fragments also are observed in the soft tissues just above the greater trochanter, contained within a soft tissue mass. Opaque densities are noted in the pelvic soft tissues(More)
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