Articles

Giant Cell Tumors of Tendon Sheath

Giant cell tumor of tendon sheath is a well-recognized histopathologic entity. It is the second most common tumor of the hand, and although it can occur in other location of the body, such occurrences are quite uncommon. Several authors have examined the clinical and histologic parameters of this tumor, and in fact there is no general agreement as to the nomenclature of the lesions as well as the optimal treatment regime is poorly understood at the present time.

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Hemiresection Arthroplasty of the Distal Radioulnar Joint

Painful disorders of the distal radioulnar joint (DRUJ) and the triangular fibrocartilage complex (TFCC) are becoming recognized and treated more frequently. A systemic approach to these often difficult to diagnose problems can lead to the appropriate treatment, and if necessary, the appropriate surgical intervention. The issue devotes its attention to wrist arthritis; therefore, the focus of this article is on arthritis of the DRUJ treated specifically by hemiresection arthroplasty of the DRUJ. Arthroplasty techniques, in general, of the DRUJ are grouped into several categories. There are excisional arthroplasties, complete and partial, which include the Darrach procedure, the Feldon wafer procedure, the matched (Watson) resection, and the hemiresection interposition (Bower) arthroplasty [1-5]. Also included are ulnar shortening and replacement arthroplasty. There are now sufficient studies on most of these techniques to give excellent comparison and functional outcomes [6-12]. This allows the surgeon to make the appropriate choice of procedure, based on a thorough knowledge of the patient and their functional demands.

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Vascular Leiomyoma of the Finger Causing Bone Erosion

The vascular leiomyoma, or angiomyoma, is a benign tumor that most commonly present in the lower extremity. Previous studies by Neviaser and Newman have shown that its occurrence in the upper extremity may be higher than originally thought. Over an 18-year period, they found 12 of 85 cases occurring in the hand. To our knowledge, previous reports have not demonstrated any associated involvement of the bone or tendon sheath.

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Stabilization of the Unsable Distal Ulna: The Linscheid-Hui Procedure

Instability of the distal ulna at the distal radioulnar joint (DRUJ) can result from dislocations, radius and ulna fractures, malunions, and ligament injuries. Often unrecognized, acute injuries result in chronic instability of the DRUJ. The instable distal ulna most commonly presents with dorsal displacement of the ulnar head and a carpal supination deformity.

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Lateral Epicondylitis

Lateral epicondylitis, also known as tennis elbow, is common and well-known disorder caused by a pathologic condition of the common extensor origin at the lateral epicondyle of the humerus. It was originally described by Runge in 1873 as writer's cramp. There has been much controversy and little agreement in the literature regarding its pathogenesis, etiology, treatment, and natural course. It is common among workers (especially carpenters), musicians, and racquet-sports athletes. The incidence may be as high as 50% in recreational tennis players during theire careers. The usual age of onset is 40 years (range 30 to 50 years).

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