SINGLE VERSUS DOUBLE SCREW FIXATION FOR TREATMENT OF SLIPPED CAPITAL FEMORAL EPIPHYSIS - A BIOMECHANICAL ANALYSIS

被引:53
作者
KAROL, LA
DOANE, RM
CORNICELLI, SF
ZAK, PA
HAUT, RC
MANOLI, A
机构
[1] Department of Orthopaedic Surgery, Wayne State University School of Medicine, Detroit
[2] Department of Biomechanics, College of Osteopathic Medicine, Michigan State University, East Lansing, MI
关键词
BOVINE FEMUR; SINGLE OR DOUBLE SCREW FIXATION; SLIPPED CAPITAL FEMORAL EPIPHYSIS;
D O I
10.1097/01241398-199211000-00008
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
Slipped capital femoral epiphyses (SCFE) were created in 10 pair of bovine femurs. Each pair was pinned with a single screw on one side and two screws contralaterally. The specimens were reloaded to failure. Double pin fixation yielded only a 33% increase in stiffness as compared with single pin fixation. Resistance to further slip was not proportional to screw number. The stiffness of neither double nor single screw fixation approximated that of the intact physis. Single screw fixation in slipped epiphyses is recommended because the small gains in stiffness with a second screw do not offset the risk of complications.
引用
收藏
页码:741 / 745
页数:5
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