title: Minimally invasive Unicondylar Knee Arthroplasty in a patellectomized patient.
abstract: Patellectomized patients may have less satisfactory clinical outcomes following total knee arthroplasty due to a decreased extensor mechanism efficiency and potential instability. The literature only reports 3 case series of patients who had a previous patellectomy undergoing a Unicondylar Knee Arthroplasty (UKA) with mixed results. A Minimally Invasive fixed-bearing UKA was performed in a patellectomized patient with excellent postoperative knee stability and clinical outcomes after 5 years. MIS UKA may be a viable option for patellectomized patients with isolated medial compartment osteoarthritis and no preoperative extensor deficiency or instability. Level of evidence IV.
authors.affiliation: Department of Orthopaedic Surgery, Singapore General Hospital, Outram Road, Singapore 169608, Singapore.
authors.forename: Hee-Nee
authors.initials: HN
authors.lastname: Pang
authors.forename: Gerard
authors.initials: G
authors.lastname: Ee
authors.forename: Ngai-Nung
authors.initials: NN
authors.lastname: Lo
authors.forename: Seng-Jin
authors.initials: SJ
authors.lastname: Yeo
mesh_terms: D019645:Arthroplasty, Replacement, Knee; D005260:Female; D050723:Fractures, Bone / Q000601:surgery*; D006801:Humans; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures; D020370:Osteoarthritis, Knee / Q000601:surgery*; D010329:Patella / Q000293:injuries / Q000601:surgery*; D016896:Treatment Outcome
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