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The Bare Area of the Proximal Ulna: An Anatomic Study With Relevance to Chevron Osteotomy 期刊论文

编号：

b1cff7f3-3b2f-4869-8d1e-97ddadcf24c0
作者：

Ao, Rongguang(敖荣广)#^[1]Zhang, Xu(张旭)^[1]Li, Dejian(李得见)^[1]Chen, Fancheng(陈帆成)^[1]Zhou, Jianhua(周建华)^[1]Yu, Baoqing(禹宝庆)^[1]
语种：

English
期刊：

JOURNAL OF HAND SURGERY-AMERICAN VOLUME ISSN：0363-5023 2017 年 42 卷 6 期 ; JUN
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关键词：

Proximal ulna distal humerus fracture chevron osteotomy
摘要：

Purpose A chevron osteotomy of the ulna is widely used to obtain intra-articular access to the elbow in the treatment of type C distal humerus fractures. The trochlear notch of the proximal ulna is divided into 2 articular parts by the "bare area." Ideally, the olecranon osteotomy should be centered on the bare area to minimize damage to the joint cartilage. The goals of this study were to describe the anatomy of the bare area and design an ideal chevron-shaped osteotomy. Methods We dissected 38 cadaver elbows and measured the width of the bare area, the distance between the tip of the triceps insertion and the area on the olecranon cortex corresponding to the bare area. We then designed a chevron osteotomy to stay within the bare area and measured the distance from the tip of the triceps insertion to the osteotomy apex as well as the angle of the osteotomy plane and the angle of the chevron cuts. Results The bare area existed in all 38 cadavers. The mean longitudinal and transverse widths were 4.0 mm (range, 1.0-8.6 mm) and 19.0 mm (range, 16.9-23.8 mm), respectively. The mean distance between the tip of the triceps insertion and the area on the olecranon cortex corresponding to the bare area was 19.0 mm (range, 16.0-23.0 mm). The mean transverse and longitudinal widths of the cortical notch were 3.0 mm (range, 1.6-4.5 mm) and 8.0 mm (range, 6.5-14.8 mm), respectively. The mean distance between the tip of the triceps insertion and the osteotomy apex was 22.0 mm (range, 18.0-24.0 mm) and the mean angle between the osteotomy surface and the vertical plane corresponding to the tangent plane was 20 degrees (range, 10 degrees to 25 degrees). The mean angle of the V shape was 140 degrees (range, 130 degrees to 150 degrees). Conclusions Using the narrowest edge lacking cartilage (lateral or medial side) as a point of reference to locate the bare area, the designed chevron osteotomy entered the joint in the bare area in most specimens and decreased associated damage to the joint cartilage. Copyright (C) 2017 by the American Society for Surgery of the Hand. All rights reserved.
推荐引用方式
GB/T 7714：

Ao Rongguang,Zhang Xu,Li Dejian, et al. The Bare Area of the Proximal Ulna: An Anatomic Study With Relevance to Chevron Osteotomy [J].JOURNAL OF HAND SURGERY-AMERICAN VOLUME,2017,42(6).
APA：

Ao Rongguang,Zhang Xu,Li Dejian,Chen Fancheng,&Yu Baoqing.(2017).The Bare Area of the Proximal Ulna: An Anatomic Study With Relevance to Chevron Osteotomy .JOURNAL OF HAND SURGERY-AMERICAN VOLUME,42(6).
MLA：

Ao Rongguang, et al. "The Bare Area of the Proximal Ulna: An Anatomic Study With Relevance to Chevron Osteotomy" .JOURNAL OF HAND SURGERY-AMERICAN VOLUME 42,6(2017).

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