COMPUTED ANALYSES OF THE PATHOMECHANICS OF SCAPHOID WAIST NONUNIONS

被引：30

作者：

BELSOLE, RJ

HILBELINK, DR

LLEWELLYN, JA

DALE, M

GREENE, TL

RAYHACK, JM

机构：

[1] Departments of Orthopaedic Surgery, Anatomy, and Chemical Engineering, University of South Florida, Tampa, Florida

来源：

JOURNAL OF HAND SURGERY-AMERICAN VOLUME | 1991年 / 16A卷 / 05期

关键词：

D O I：

10.1016/S0363-5023(10)80158-3

中图分类号：

R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];

学科分类号：

摘要：

The computed tomography scans of both the injured and the normal wrists of nine patients with a scaphoid nonunion of 5 to 120 months' duration were used to create three-dimensional computer models. When the computer images of the normal and the contralateral fractured scaphoids were superimposed, it was possible to calculate the volume of bone that was lost as a result of the injury and its failure to heal, as well as the angular relationship of the fracture components to one another. The amount of the scaphoid bone that was lost varied from 6% to 15% of bone volume and did not show a linear correlation with the duration of the nonunion. The configuration of the missing bone was consistent and exhibited a prismatic shape whose base is quadrilateral and faces palmarly. The proximal scaphoid fracture component is extended, radially deviated, and supinated in relation to its distal fracture component. The consistent fracture deformity and the configuration of the bony defect in the scaphoid waist nonunions should be helpful in the understanding and treatment of the condition.

引用

页码：899 / 906

页数：8

共 53 条

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