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Suy nhược cổ tay

Dịch thuật của bán kính gần là Một biến chứng của gãy xương đầu xuyên tâm gắn với XẢY RA đó sự gián đoạn của các mô mềm ổn định theo chiều dọc của cánh tay. Các di chứng của quá trình này bao gồm suy nhược cổ tay và khuỷu tay bánh mì thứ cấp để trụ ulnocarpal và radiocapitellar cũng như mất sức mạnh cầm. | Longitudinal Radioulnar Dissociation Tamara D. Rozental MD Pedro K. Beredjiklian MD and David J. Bozentka MD Abstract Proximal translation of the radius is a complication of radial head fractures that occurs in association with disruption of the longitudinal soft-tissue stabilizers of the forearm. The sequelae of this process include debilitating wrist and elbow pain secondary to ulnocarpal and radiocapitellar abutment as well as loss of grip strength. When radioulnar dissociation is recognized early treatment involves prevention of proximal radial migration by preservation of the radial head and stabilization of the distal radioulnar joint. When primary bony repair of the radial head is not feasible prosthetic replacement of the radial head is necessary to prevent proximal radial migration. Management is complex in chronic cases in which longitudinal radioulnar dissociation is diagnosed after radial migration has occurred. Treatment goals include normalization of the radioulnar relationship and prevention of further migration. Although several reconstructive treatment options are available no clear solutions exist and long-term prognosis is guarded. Therefore early recognition of longitudinal forearm instability is critically important. J Am Acad Orthop Surg 2003 11 68-73 Forceful loading of the forearm and elbow during a fall on an outstretched hand can lead to fracture of the radial head with concomitant injury to stabilizing ligamentous structures. Proximal translation of the radius occurs when a radial head fracture happens in association with disruption of the longitudinal stabilizers of the forearm. The clinical presentation ranges from acute disruption of the distal radioulnar joint to insidious ulnocarpal impingement with worsening pain and loss of motion. Curr and Coe1 first reported a fracture-dislocation of the radial head with dorsal dislocation of the distal ulna. Essex-Lopresti2 later described two cases of acute radial head fractures with disruption