August 31, 2015
Patient-specific implants used during total knee arthroplasty decreased estimated blood loss by 44.72mL, length of stay by 0.39 days and range of motion by 3.90°, however no significant differences were observed between surgical and tourniquet time for patients with these or conventional implants .
In the retrospective consecutive series study, researchers reviewed charts of 621 patients with a mean age 63.19 years. All patients underwent total knee arthroplasty (TKA); 307 of those patients received patient-specific implants (PSIs) compared 314 patients who received conventional implants. The charts for patients in the two groups were divided between two surgeons: Surgeon A — PSIs and conventional implants and Surgeon B — PSIs and conventional implants.