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J Knee Surg 2011; 24(3): 203-208
DOI: 10.1055/s-0031-1280971
ORIGINAL ARTICLE

© Thieme Medical Publishers

Results of MIS TKA at Mean Nine Year Follow-Up

Peter M. Bonutti1 , Christopher R. Costa2 , Antonia Woehnl2 , Aaron J. Johnson2 , Michael A. Mont2
  • 1Bonutti Clinic, Effingham, Illinois
  • 2Center for Joint Preservation and Reconstruction, Rubin Institute for Advanced Orthopedics, Baltimore, Maryland
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Publication History

Publication Date:
08 June 2011 (online)

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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