Patient satisfaction and functional status after aseptic versus septic revision total knee arthroplasty using the PROSTALAC articulating spacer.
This study compared the functional results of an articulating antibiotic spacer for 2-stage revision knee arthroplasty for infection, to the functional results of aseptic revision. One hundred twenty-five patients who underwent revision of total knee arthroplasty for infection and aseptic loosening were identified. All of the patients with infection were treated with the PROSTALAC system (DePuy). At a minimum 2-year follow-up, WOMAC, Oxford-12, SF-12, patient satisfaction data, Harris Hip Score knee scores, and range of motion were assessed. The 2 cohorts (4 deaths in total, leaving 54 septic, 57 aseptic) were equivalent for age, gender, and comorbidity scores. At a mean of 41 months, none of the outcomes were significantly worse for the septic group, which had 2 recurrences of infection (4%). The satisfactory functional results of the PROSTALAC system may be related to the design features.
Meek
R M Dominic
RM
Division of Lower Limb Reconstruction and Oncology, Department of Orthopaedics, University of British Columbia, Vancouver, Canada.
Dunlop
David
D
Garbuz
Donald S
DS
McGraw
Robert
R
Greidanus
Nelson V
NV
Masri
Bassam A
BA
D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D016009:Chi-Square Distribution; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D017060:Patient Satisfaction; D011474:Prosthesis Design; D011475:Prosthesis Failure; D020127:Recovery of Function; D012044:Regression Analysis; D012086:Reoperation; D013530:Surgical Wound Infection / Q000382:microbiology / Q000628:therapy*
D000900:Anti-Bacterial Agents