Medial Unicompartmental Knee Arthroplasty in Patients Less Than 55 Years Old: Minimum of Two Years of Follow-Up

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 sc...

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Bibliographic Details
Published in:The Journal of arthroplasty 2014, Vol.29 (1), p.101-105
Main Authors: Biswas, Debdut, MD, Van Thiel, Geoffrey S., MD, Wetters, Nathan G., MD, Pack, Bryan J., MD, Berger, Richard A., MD, Della Valle, Craig J., MD
Format: Article
Language:English
Subjects:
Adult
Arthroplasty, Replacement, Knee
Female
Follow-Up Studies
Humans
Knee Joint - diagnostic imaging
Knee Joint - surgery
Knee Prosthesis
Male
Middle Aged
Orthopedics
Osteoarthritis, Knee - surgery
Radiography
Range of Motion, Articular
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Summary: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.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2013.04.046