Dandachli W, Richards R, Sauret V, Cobb J P
University College London, UK.
Comput Aided Surg. 2006 Nov;11(6):322-6. doi: 10.3109/10929080601090706.
Acetabular orientation is a crucial part of the planning and performance of hip arthroplasty. Currently, most surgeons use the anterior pelvic plane (APP) to orient themselves when navigating the acetabulum, despite the fact that the anterior superior iliac spine (ASIS) of the unaffected side is not accessible in the lateral position. We have identified another plane, the transverse pelvic plane (TPP), relying on both posterior superior iliac spines and the ASIS of the affected side. In a CT-based study, this plane was found to be as reliable as the APP for the orientation of the cup in both anteversion and inclination. The substantial variation in both measurements between patients is documented, and their relation to the "safe zone" is shown. We recommend consideration of the TPP by surgeons who perform arthroplasty in the lateral position. It may reduce operating time and improve accuracy in computer-assisted arthroplasty.
髋臼方向是髋关节置换术规划和实施的关键部分。目前，尽管在侧卧位时无法触及未受影响侧的髂前上棘（ASIS），但大多数外科医生在髋臼导航时仍使用骨盆前平面（APP）来确定自身方位。我们确定了另一个平面，即骨盆横平面（TPP），它依赖于患侧的双侧髂后上棘和ASIS。在一项基于CT的研究中，发现该平面在髋臼杯前倾和倾斜方向的定位上与APP一样可靠。记录了患者之间这两种测量值的显著差异，并显示了它们与“安全区”的关系。我们建议在侧卧位进行关节置换术的外科医生考虑使用TPP。它可能会减少手术时间并提高计算机辅助关节置换术的准确性。
