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Journal of Long-Term Effects of Medical Implants

ISSN Print: 1050-6934
ISSN Online: 1940-4379

Journal of Long-Term Effects of Medical Implants

DOI: 10.1615/JLongTermEffMedImplants.2017019928
pages 321-327

Can Both Cruciate Ligaments Be Preserved in Knee Arthroplasty? Eight- to Nine-Year Follow-Up of a Bicompartmental Knee Replacement

Bertrand W. Parcells
Department of Orthopedic Surgery, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ
Jared S. Preston
Department of Orthopedic Surgery, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ
Brian Culp
Department of Orthopedic Surgery, Robert Wood Johnson Medical School, Rutgers University, New Brunswick, NJ
V. Karthik Jonna
St. Peter's Hospital, New Brunswick, NJ
Alfred J. Tria, Jr.
Clinical Professor of Orthopaedic Surgery. Departments of Pathology and Laboratory Medicine and Surgery, UMDNJ-Robert Wood Johnson Medical School, Piscataway, NJ 08854 The Orthopredic Center of New Jersey 1527 State Highway 27, Suite 1300 Somerset NJ 088, St. Peter's Hospital, New Brunswick, NJ

ABSTRACT

Preservation of native knee anatomy may confer improved patient satisfaction, as suggested by patient satisfaction scores in unicondylar versus total knee replacement. Bicompartmental knee replacement (BKR) implants similarly promote native tissue preservation.
We retrospectively reviewed 42 consecutive patients who underwent BKR from 2006 to 2007. Outcome measures were evaluated. At an average follow-up of 103 months (range 87–110), 34/42 (81%) of implants survived. Among the retained implants, the Knee Society Score (KSS) grade was excellent in 26/34 (76.5%), good in 5/34 (14.7%), fair in 3/34 (8.8%), and poor in 0/34 (0%) of cases. Midterm results of BKR demonstrated 81% survival and 76% with excellent KSS grading. Despite a 20% revision rate at the short-term follow-up, the retained implants functioned well at the midterm follow-up.