Zhang Yiyang, Chang Nicholas, Faber Kenneth J, Athwal George S, King Graham Jw
Pan Am Clinic, Winnipeg, MB, Canada.
Department of Surgery, Section of Orthopaedic Surgery, University of Manitoba, Winnipeg, MB, Canada.
Shoulder Elbow. 2025 Mar 21:17585732251327183. doi: 10.1177/17585732251327183.
We have observed differences in patterns of arthritic wear between male and female patients undergoing arthroscopic management of elbow osteoarthritis. The objective of the study was to examine sex-related radiographic differences in symptomatic primary elbow osteoarthritis through a matched cohort study.
Fifty patients with primary elbow osteoarthritis that required surgery were identified and divided into two cohorts matched by sex and age from an institutional database. Basic patient demographics were recorded. The minimum joint space width (JSW) of the radiocapitellar and ulnohumeral compartments were measured on coronal and sagittal CT images, by two reviewers.
The mean age of the 50 patients was 56 years. The mean size adjusted ulnohumeral JSW for males was 1.5 mm and females was 1.0 mm, = 0.003. The mean size adjusted radiocapitellar JSW for males was 1.1 mm and females was 1.3 mm, = 0.37. Comparing radiocapitellar and ulnohumeral JSW within each sex, radiocapitellar JSW was significantly narrower in males ( = 0.008) but the radiocapitellar and ulnohumeral JSW was similar in females ( = 0.11).
In our study, we found that male patients with primary elbow osteoarthritis had cartilage loss predominantly in the radiocapitellar articulation. Female patients had similar radiocapitellar and ulnohumeral JSW suggesting more symmetric cartilage wear.
我们观察到接受肘关节骨关节炎关节镜治疗的男性和女性患者的关节炎磨损模式存在差异。本研究的目的是通过一项匹配队列研究，探讨有症状的原发性肘关节骨关节炎中与性别相关的影像学差异。
从机构数据库中确定50例需要手术治疗的原发性肘关节骨关节炎患者，并根据性别和年龄分为两个匹配队列。记录患者的基本人口统计学数据。由两名评估者在冠状位和矢状位CT图像上测量桡骨头和尺肱关节间隙的最小宽度（JSW）。
50例患者的平均年龄为56岁。男性调整大小后的尺肱关节间隙平均JSW为1.5毫米，女性为1.0毫米，P = 0.003。男性调整大小后的桡骨头关节间隙平均JSW为1.1毫米，女性为1.3毫米，P = 0.37。比较各性别内的桡骨头和尺肱关节间隙，男性的桡骨头关节间隙明显更窄（P = 0.008），但女性的桡骨头和尺肱关节间隙相似（P = 0.11）。
在我们的研究中，我们发现原发性肘关节骨关节炎男性患者的软骨损失主要发生在桡骨头关节。女性患者的桡骨头和尺肱关节间隙相似，表明软骨磨损更对称。
