Medial Unicompartmental Knee Arthroplasty in Patients Less Than 55 Years Old: Minimum of Two Years of Follow-Up |
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Authors: | Debdut BiswasGeoffrey S Van Thiel MD Nathan G WettersBryan J Pack MD Richard A BergerCraig J Della Valle MD |
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Institution: | Section of Adult Reconstruction, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois |
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Abstract: | Eighty-five fixed bearing medial unicompartmental arthroplasties were performed in 42 men and 33 women with a mean age of 49 years (range, thirty-three to fifty-five years old) at the time of surgery. At a mean of 4.0 years (range two to twelve years), the mean pre-operative Knee Society score improved from 49 to 95.1 points (P< 0.0001) and the mean UCLA activity score was 7.5 (range 5 to 9). Three knees underwent revision to a total knee arthroplasty; two for arthritic progression in the lateral compartment and one for pain. At the time of final follow-up, two knees (2.4%) demonstrated progressive Grade 4 arthritis of the patellofemoral compartment but were asymptomatic. There was no radiographic evidence of loosening, osteolysis, or premature polyethylene wear. Estimated survivorship was 96.5% at 10 years. UKA offered excellent early outcomes in this cohort of younger, active patients. |
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Keywords: | arthroplasty knee patellofemoral unicompartmental |
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