Tatebe Masahiro, Shinohara Takaaki, Okui Nobuyuki, Yamamoto Michiro, Kurimoto Shigeru, Hirata Hitoshi
Department of Hand Surgery, Nagoya University School of Medicine, 65 Tsurumaicho, Showaku, Nagoya, 466-8550, Japan.
Surg Radiol Anat. 2013 Jan;35(1):79-83. doi: 10.1007/s00276-012-0991-2. Epub 2012 Jun 16.
The lunate is classified into two types, one with a single distal facet and the other with two distal facets. The effect of lunate type on the incidence of wrist disease and trauma remains unclear. The purpose of this study is to evaluate a potential association between lunate morphology and wrist disorders.
We retrospectively reviewed the cases of 637 patients who had undergone wrist arthroscopy for wrist disorders. Patient charts and arthroscopic video images were reviewed retrospectively. We defined lunate type based on the Viegas classifications, according to its distal facet from a midcarpal arthroscopic image. Patient wrist disorders were divided into four groups: fractures and dislocations, Kienböck's disease, ulnar wrist pain, and degenerative disease.
A Viegas type 1 lunate was observed in 349 wrists and a type 2 lunate in 288 wrists. Incidence of the type 2 lunate was different between the groups and was significantly lower for the Kienböck's disease and ulnar wrist pain groups than for the trauma and degenerative groups.
The present study revealed a variable incidence of lunate type in wrist disorders. The proportion of type 2 lunates was lower in Kienböck's disease and ulnar wrist pain.
月骨可分为两种类型，一种有单个远侧关节面，另一种有两个远侧关节面。月骨类型对腕部疾病和创伤发生率的影响尚不清楚。本研究的目的是评估月骨形态与腕部疾病之间的潜在关联。
我们回顾性分析了637例因腕部疾病接受腕关节镜检查患者的病例。对患者病历和关节镜视频图像进行回顾性分析。根据Viegas分类法，从腕中关节镜图像中根据月骨远侧关节面来定义月骨类型。患者的腕部疾病分为四组：骨折与脱位、Kienböck病、尺侧腕部疼痛和退行性疾病。
在349例腕部观察到Viegas 1型月骨，288例腕部观察到2型月骨。2型月骨的发生率在各组之间存在差异，在Kienböck病和尺侧腕部疼痛组中显著低于创伤组和退行性疾病组。
本研究揭示了腕部疾病中月骨类型的发生率存在差异。在Kienböck病和尺侧腕部疼痛中，2型月骨的比例较低。
