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脊柱矢状平衡对骨盆前平面和髋臼方向的影响。

Influence of the sagittal balance of the spine on the anterior pelvic plane and on the acetabular orientation.

机构信息

Department of Orthopaedics, University Hospital of Mont-Godinne, 5530, Yvoir, Belgium.

出版信息

Int Orthop. 2009 Dec;33(6):1695-700. doi: 10.1007/s00264-008-0702-0. Epub 2009 Jan 16.

Abstract

The Anterior Pelvic Plane (APP), defined by the anterior superior iliac spines and the pubic tubercle, was commonly used as reference for positioning and postoperative evaluation of the orientation of the acetabular cup in total hip arthroplasty. APP was assumed to be vertical, but was not observed always so, mostly because of associated spinal diseases inducing perturbations in the harmony of the sagittal balance of the pelvi-spinal unit. Consequently a sagittal rotation of the pelvis occurs, and so a tilt of the APP which alters directly the orientation of the cup in upright position. An analysis of the APP tilt related to the sagittal balance of the spine was provided and its implication on the cup orientation. It appeared essential for an individual adjustment of the cup positioning to avoid a functional mal-position which can lead to an increased risk of dislocation and impingement.

摘要

骨盆前平面(APP)由髂前上棘和耻骨结节定义,常用于全髋关节置换术中髋臼杯方向的定位和术后评估。APP 被认为是垂直的,但并不总是如此,主要是因为相关的脊柱疾病导致骨盆-脊柱单位矢状平衡的和谐受到干扰。因此,骨盆发生矢状旋转,APP 倾斜,直接改变了髋臼杯在直立位置的方向。本文分析了 APP 倾斜与脊柱矢状平衡的关系及其对杯状方向的影响。对于杯状位置的个体化调整,避免功能错位是至关重要的,因为功能错位会增加脱位和撞击的风险。

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