Heterotopic ossification after total knee arthroplasty

Takashi Toyoda, Hedeo Matsumoto, Takashi Tsuji, Junnosuke Kinouchi, Kyosuke Fujikawa

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Abstract

The incidence of heterotopic ossification (HO) after total knee arthroplasty (TKA) and its effect on the postoperative range of motion (ROM) were assessed in 63 primary TKAs. Twenty-five of 63 knees (39%) showed postoperative HO, most of which were found in the region anterior to the distal femur. The incidence of HO was significantly higher (P < .05) in the osteoarthritic knees than in the rheumatoid knees. Significant positive correlation was seen between the preoperative grade of osteophyte formation and the incidence of postoperative HO. The ROM in the knees with HO was not significantly different than that in the knees without HO at 1 year after surgery. Thus, we concluded that HO after TKA is a self-limiting condition and its pathogenesis is completely different from that of myositis ossificance.

Original languageEnglish
Pages (from-to)760-764
Number of pages5
JournalJournal of Arthroplasty
Volume18
Issue number6
DOIs
Publication statusPublished - 01-01-2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

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    Toyoda, T., Matsumoto, H., Tsuji, T., Kinouchi, J., & Fujikawa, K. (2003). Heterotopic ossification after total knee arthroplasty. Journal of Arthroplasty, 18(6), 760-764. https://doi.org/10.1016/S0883-5403(03)00194-3