A Case of Acute Prosthesis Migration after Femoral Head Replacement due to Osteomalacia by FGF23-Induced Tumor.

作者信息

Hayashi Shinya, Nishiyama Takayuki, Fujishiro Takaaki, Hashimoto Shingo, Kanzaki Noriyuki, Kawamoto Teruya, Akisue Toshihiro, Nishida Kotaro, Kurosaka Masahiro

机构信息

Department of Orthopaedic Surgery, Graduate School of Medicine, Kobe University, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan.

出版信息

Case Rep Med. 2012;2012:503956. doi: 10.1155/2012/503956. Epub 2012 Nov 27.

Fibroblast growth factor 23 (FGF23) was recently identified as an important factor involved in the development of hypophosphatemic rickets and osteomalacia. We experienced a rare case of acute prosthesis migration after hemihip arthroplasty due to FGF23-induced tumor. The patient underwent femoral head replacement because of femoral neck fracture, but prosthesis migration was occurred at 1 week after operation. The patient took various examinations, and FGF23-induced tumor was found in his right wrist. The tumor was resected, and he underwent total hip arthroplasty 8 month later. Finally, he was able to obtain free gait without pain.