拇指A1滑车在体表解剖标志上的投影：一项解剖学研究及对外科医生的实用指南
Projection of the A1-Pulley of the Thumb onto Superficial Anatomical Landmarks: An Anatomical Study and a Useful Guide to Surgeons.
作者信息
Schwarz Angelika Maria, Lipnik Georg, Schwarz Ulrike Maria, Maier Marco Johannes, Weiglein Andreas Heinrich, Hohenberger Gloria Maria
机构信息
AUVA - Trauma Hospital Styria | Graz, Department of Orthopaedics and Trauma, Teaching Hospital of the Medical University of Graz, Göstinger Straße 24, 8020 Graz, Austria.
Department of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036 Graz, Austria.
出版信息
Indian J Orthop. 2021 Mar 30;55(Suppl 2):330-335. doi: 10.1007/s43465-021-00397-3. eCollection 2021 Jul.
BACKGROUND
The aim of our study was to project the A1-pulley of the thumb onto the total thumb length to enable its complete division with and without direct sight.
MATERIALS AND METHODS
The study involved 50 hands from adult human cadavers. The proximal and distal borders of the A1-pulley were measured with reference to the first metacarpophalangeal joint (MCPJ). The length of the thumb was defined as the interval between the first carpometacarpal joint (CMCJ) and the apex of the thumb. The length of the pulley is calculated proportionally with reference to the line between the first CMCJ and apex of the thumb.
RESULTS
Approximated by computing 95% confidence intervals, the pulley can be expected to lie in an area between 34.0% (proximal border) and 57.8% (distal border) alongside this line.
CONCLUSION
Percutaneous and minimally-invasive division of the A1-pulley needs to be performed between 34.0 and 57.8% of the length between the first CMCJ and apex of the thumb.
背景
我们研究的目的是将拇指的A1滑车投影到拇指总长度上，以便在直视或非直视情况下对其进行完整分割。
材料与方法
该研究涉及50只来自成年人体尸体的手。以第一掌指关节（MCPJ）为参照，测量A1滑车的近端和远端边界。拇指长度定义为第一腕掌关节（CMCJ）与拇指尖之间的间距。滑车长度通过参照第一CMCJ与拇指尖之间的连线按比例计算得出。
结果
通过计算95%置信区间近似得出，预计滑车位于该连线旁34.0%（近端边界）至57.8%（远端边界）的区域内。
结论
A1滑车的经皮和微创分割需在第一CMCJ与拇指尖之间长度的34.0%至57.8%之间进行。
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