Total knee arthroplasty combined with medial patellofemoral ligament augmentation using a Leeds-Keio ligament for 'Windswept deformity' with ipsilateral valgus deformity and permanent patellar dislocation: A case report and a literature review

• Main Authors: Nobuyuki Kumahashi (Author), Suguru Kuwata (Author), Hiroshi Takuwa (Author), Yuji Uchio (Author)
• Format: Book
• Published: Elsevier, 2021-10-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.
• Notes: 2214-6873; 10.1016/j.asmart.2021.07.001
• Keywords: Bilateral total knee arthroplasty; Medial patellofemoral ligament reconstruction; Permanent patellar dislocation; Sports medicine; RC1200-1245
• Source: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology, Vol 26, Iss , Pp 53-57 (2021)

We present a 'Windswept deformity' in patient who had osteoarthritis with a mild varus and very severe valgus with ipsilateral permanent patellar dislocation. An 83-year-old woman could not walk for the past a few years due to bilateral knee pain. The femorotibial angle was 196° in the right knee pre-operatively and 134° in the left knee with permanent patellar dislocation. She underwent a staged total knee arthroplasty (TKA) for the right knee, and a semi-constrained TKA for the left knee with medial patellofemoral ligament (MPFL) augmentation using a Leeds-Keio (LK) ligament. At the final follow-up three years after surgery, bilateral knee pain and the extension lag had disappeared and range of motion (ROM) was 0° in extension and 130° in flexion for both knees without patellar re-dislocation. This clinical case indicates that the unconstrained and semi-constrained type of TKA combined with the MPFL augmentation using an LK ligament is effective to treat a 'Windswept deformity'.