Successful treatment of a habitual patellar dislocation after a total knee arthroplasty with a closing-wedge distal femoral varus osteotomy and medial patello-femoral ligament reconstruction

Hidetomo Saito; Kimio Saito; Yoichi Shimada; Toshiaki Yamamura; Takahiro Sato; Koji Nozaka; Hiroaki Kijima; Masashi Fujii; Tetsuya Kawano; Naohisa Miyakoshi

doi:10.1186/s40634-020-00281-3

Successful treatment of a habitual patellar dislocation after a total knee arthroplasty with a closing-wedge distal femoral varus osteotomy and medial patello-femoral ligament reconstruction

J Exp Orthop. 2020 Sep 1;7(1):63. doi: 10.1186/s40634-020-00281-3.

Authors

Hidetomo Saito^{1

2}, Kimio Saito^{3

4}, Yoichi Shimada³, Toshiaki Yamamura⁵, Takahiro Sato⁵, Koji Nozaka³, Hiroaki Kijima^{3

4}, Masashi Fujii^{3

4}, Tetsuya Kawano^{3

4}, Naohisa Miyakoshi³

Affiliations

¹ Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, Akita, 010-8543, Japan. hidetomo@doc.med.akita-u.ac.jp.
² Akita Sports Arthroscopy and Knee Group, Akita, Japan. hidetomo@doc.med.akita-u.ac.jp.
³ Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Hondo 1-1-1, Akita, 010-8543, Japan.
⁴ Akita Sports Arthroscopy and Knee Group, Akita, Japan.
⁵ Sapporo Sports Clinic, Chuo-ku Kita-1-jo, Nishi-2-Tyome, Sapporo, 060-0001, Japan.

Abstract

A 68-year-old female suffering from habitual patellar dislocations following a mal-positioned total knee arthroplasty (TKA) was successfully treated with a biplanar closed wedge distal femoral osteotomy (CWDFO) and medial patello-femoral ligament (MPFL) reconstruction. To the best of our knowledge, no such case has been previously described. Our experience with this case suggests that treatment for a patella dislocation following valgus mal-positioning of TKA should be considered positively. LEVEL OF EVIDENCE: V.

Keywords: Anterior knee pain; Mal-alignment; Patella instability; Revision arthroplasty.