THE CHANGE IN ULNAR VARIANCE WITH GRIP

被引：90

作者：

FRIEDMAN, SL ^{[1
]}

PALMER, AK ^{[1
]}

SHORT, WH ^{[1
]}

LEVINSOHN, EM ^{[1
]}

HALPERIN, LS ^{[1
]}

机构：

[1] SUNY HLTH SCI CTR,HAND SURG SECT,550 HARRISON CTR,SUITE 100,SYRACUSE,NY 13202

来源：

JOURNAL OF HAND SURGERY-AMERICAN VOLUME | 1993年 / 18A卷 / 04期

关键词：

D O I：

10.1016/0363-5023(93)90325-W

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 effect of grip on ulnar variance was evaluated in 66 symptom-free wrists of 53 volunteers. Zero-rotation posteroanterior x-ray films were taken of each wrist before and after exertion of a grip force measured with a Jamar dynamometer. The volunteers were randomly divided into two groups. Group I subjects (35 wrists) were asked to exert a constant grip force of 11.3 kg. Group II subjects (31 wrists) were asked to exert a maximum grip effort, which resulted in a mean grip force of 30 kg (range, 22.8 kg to 53.6 kg). Group I demonstrated a mean increase in ulnar variance of 1.27 mm and group II showed a mean increase of 1.95 mm. The minimum increase in ulnar variance observed was 0.25 mm. The changes observed were statistically significant. The results confirm that a relative increase in ulnar variance occurs with grip. There may be an etiologic role for daily activities that involve repetitive grip and forearm rotation in development of the ulnar impaction syndrome.

引用

页码：713 / 716

页数：4

共 8 条

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