A study published online in The Journal of Arthroplasty found that kinetically aligned (KA) TKA using patient-specific instrumentation (PSI) did not impact 10-year implant survival. 

Researchers retrospectively assessed 222 knees in 217 patients treated in 2007 with a primary TKA. All patients were treated with KA using PSI without restricting the degree of preoperative deformity and with the restoration of the native joint lines and limb alignment. The implant survivorship rate was 97.5 percent for revision for any reason and 98.4 percent for aseptic failure. The average 10-year Oxford Knee Score and Western Ontario & McMaster Universities Osteoarthritis Index scores were 43 and seven, respectively. Learn more...


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