Internal Unicompartmental Arthroplasty After Tibial Valgization Osteotomy

Internal Unicompartmental Arthroplasty After Tibial Valgization Osteotomy

This retrospective, monocentric study is about outcomes concerning patients who benefit from medial unicompartmental knee arthroplasty after previous high tibial osteotomy. This previous high tibial osteotomy was performed because of genu varum.

Clinical, funtionnal and radiological outcomes were examined.

Inclusion Criteria:

• operated between January 2005 and June 2019
• HTO followed by implantation of medial UKA (Oxford Partial Knee, Zimmer Biomet, Bridgend, UK) in the same knee
• medial knee osteoarthritis with healthy lateral compartment
• patellofemoral pain
• coronal plane deformity of less than 15°

Exclusion Criteria:

• death
• lost to follow-up
• medial UKA implant other than the Oxford Partial Knee