ABSTRACT
The first 103 consecutive minimally invasive total knee arthroplasties performed by
a single surgeon were assessed to determine the clinical and radiographic outcomes
at a mean of 9-year follow-up (range, 8 to 10 years). Patients who died before final
follow-up were 10 (13 knees), leaving 90 knees in 69 patients for final review. Outcome
was evaluated using Knee Society pain and functional scores. Survival with revision
as an end point was 97.1%. Knee Society scores and range of motion improved significantly
to a mean of 96 and 92 points and a mean of 115 degrees, respectively. There were
five patients who required surgical intervention for unexplained pain with findings
of retained cement and adhesions. Radiographic analysis did not reveal any progressive
radiolucencies. These results suggest that excellent long-term outcomes can be achieved
with minimally invasive total knee arthroplasty.
KEYWORDS
Minimally invasive - total knee arthroplasty - long-term outcome - survival
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Michael MontM.D.
Center for Joint Preservation and Replacement, Rubin Institute for Advanced Orthopaedics
2401 West Belvedere Avenue, Baltimore, MD 21215
eMail: mmont@lifebridgehealth.org
