Comparison of a Minimally Invasive Tissue-Sparing Posterior Superior (TSPS) Approach and the Standard Posterior Approach for Hip Replacement

Figure 3

The lesser trochanter is used as a reference point to perform an intraarticular neck resection of the correct length, according to the preoperative plan (a). Schanz screw is used to excise the femoral head and is inserted in the most cranial direction possible while maintaining a cranial-caudal direction toward the neck. With the leg in abduction to relax the gluteus muscles, the Schanz screw is turned in the cranial-caudal direction to extract the femoral head (b).

(a)

(b)