Preservation technique of the piriformis tendon is superior to reattachment technique in terms of contiguity and muscle atrophy: using magnetic resonance imaging

Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
So MinokawaTakuaki Yamamoto

Abstract

The preservation technique of the piriformis tendon during the posterolateral approach in total hip arthroplasty (THA) is reportedly superior to the reattachment technique in terms of dislocation. However, the long-term effects of preservation of the piriformis tendon during THA remain unknown. In this study, we evaluated the contiguity of the piriformis/conjoined tendon and atrophy of the piriformis/internal obturator muscle during a long-term postoperative follow-up using magnetic resonance imaging (MRI). We retrospectively evaluated 48 patients with available MRI. The 48 patients were classified into a P group ( n = 29), in which the piriformis tendon was preserved, and an R group ( n = 19), in which the piriformis was reattached after sectioning. The mean follow-up duration was 45.9 months. The contiguity of the piriformis/conjoined tendon and atrophy of the piriformis/internal obturator muscle were evaluated in all patients. The piriformis tendon remained attached to the greater trochanter in all P-group patients and 68.4% of R-group patients. The mean piriformis muscle atrophy ratios were 15.9% ± 21.1% in the P group and 41.6% ± 19.1% in the R group ( p < 0.001). The conjoined tendon repair remained intact in 72.4% of P-g...Continue Reading

References

Jan 26, 1999·Clinical Orthopaedics and Related Research·P M PellicciR Poss
Nov 1, 2001·The Journal of Bone and Joint Surgery. American Volume·W M GoldsteinJ J Branson
Jun 3, 2006·Clinical Orthopaedics and Related Research·Michael S KwonKhaled J Saleh
Jan 16, 2008·Clinical Orthopaedics and Related Research·Yong Sik KimWilliam J Maloney
Sep 25, 2008·Clinical Orthopaedics and Related Research·Paul M PellicciFriedrich Boettner
Jun 7, 2015·Clinical Orthopaedics and Related Research·Alexander S McLawhornPaul M Pellicci

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Citations

Sep 29, 2021·Orthopaedics & Traumatology, Surgery & Research : OTSR·Matthieu LalevéeStéphane Van Driessche

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Methods Mentioned

BETA
total hip arthroplasty

Software Mentioned

GraphPad
GraphPad Prism

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