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Acetabular Perforation After Medial Migration of the Helical Blade Through the Femoral Head After Treatment of an Unstable Trochanteric Fracture With Proximal Femoral Nail Antirotation (PFNA): A Case Report

Takigami, Iori MD; Ohnishi, Kazuichiro MD, PhD; Ito, Yoshiki MD, PhD; Nagano, Akihito MD, PhD; Sumida, Hisashi MD; Tanaka, Kaori MD; Shimizu, Katsuji MD, DMSc

doi: 10.1097/BOT.0b013e3181fae12e
Case Report

The proximal femoral nail antirotation is a new generation of intramedullary device for the treatment of trochanteric femoral fractures, having a helical blade rather than a screw for suggested better purchase in osteoporotic bone. However, it is not free of complications. Few reports are available on postoperative perforation of the helical blade through the femoral head as a unique complication of proximal femoral nail antirotation. We report a 79-year-old woman with acetabular perforation after migration of the helical blade through the femoral head after an unstable trochanteric fracture, which was fixed with a proximal femoral nail antirotation.

From the *Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan; and †Department of Orthopaedic Surgery, Hirano General Hospital, Gifu, Japan.

Accepted for publication September 3, 2010.

No financial support for this study was provided.

The authors declare no conflicts of interest.

Reprints: Iori Takigami, MD, Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan (e-mail: ioritigers@yahoo.co.jp).

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