Functional Outcome and Quality of Life after Patient-Specific Instrumentation in Total Knee Arthroplasty.
Patient-specific instrumentation (PSI) surgery may represent the next advancement in total knee arthroplasty (TKA). In 2011, 60 patients were prospectively recruited and divided into two groups based on the patient's choice: (1) PSI surgery; and (2) conventional TKA. At two years after surgery, the Knee Society Function Score, Oxford Knee Score and SF-36 scores were comparable between the two groups. Although the Knee Society Knee Score (KSKS) was 9 ± 3 points better in the PSI group (P=0.008), the two years improvement in KSKS was comparable between the two groups. None of the patients required revision surgery. These findings cannot justify the additional costs and waiting time incurred by the patients with PSI surgery in the practice of a high volume surgeon.
Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
Jerry Yongqiang
JY
Chen
Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
Pak Lin
PL
Chin
Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
Darren Keng Jin
DK
Tay
Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
Shi-Lu
SL
Chia
Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
Ngai Nung
NN
Lo
Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
Seng Jin
SJ
Yeo
D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation* / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000601:surgery; D008297:Male; D008875:Middle Aged; D057285:Precision Medicine / Q000295:instrumentation* / Q000706:statistics & numerical data; D011446:Prospective Studies; D011788:Quality of Life; D020127:Recovery of Function
functional outcome; patient-specific instrumentation; quality of life; revision surgery; total knee arthroplasty