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Unicompartmental knee arthroplasty with patelloplasty
J Antoniou1, A Hadjipavlou, P Enker
1Royal Victoria Hospital, Division of Orthopaedic Surgery, Montreal, Canada.
International Orthopaedics
|January 1, 1996
Summary
Patellofemoral arthritis can be treated with unicompartmental knee arthroplasty using a novel patelloplasty technique. This approach yielded excellent outcomes, offering an alternative to total knee replacement for select patients.
Area of Science:
- Orthopedic Surgery
- Knee Arthroplasty
- Patellofemoral Joint
Background:
- Patellofemoral arthritis is typically a contraindication for unicompartmental knee arthroplasty.
- Existing treatments for patellofemoral arthritis often involve total knee replacement.
Purpose of the Study:
- To evaluate the efficacy of unicompartmental knee arthroplasty combined with nonresurfacing excisional patelloplasty for patellofemoral arthritis.
- To determine if this combined approach can expand the indications for unicompartmental knee arthroplasty.
Main Methods:
- A retrospective review of 52 patients (60 knees) who underwent the procedure.
- Patellar facets were resected through subchondral bone, preserving the bone's triangular shape.
- Nonresurfacing excisional patelloplasty was performed concurrently with unicompartmental knee arthroplasty.
Main Results:
- 90% of patients reported good to excellent outcomes at an average 6-year follow-up.
- No instances of patellofemoral pain were reported.
- Marked to moderate patellofemoral crepitus was present in 98% of patients, without associated pain.
Conclusions:
- Unicompartmental knee arthroplasty with nonresurfacing excisional patelloplasty is a viable treatment for patellofemoral arthritis.
- This technique can serve as an alternative to total knee replacement.
- The procedure effectively manages patellofemoral pain while potentially expanding the use of unicompartmental knee arthroplasty.