Patient-
specific in
strumentation (PSI) ha
s been recently introduced in knee arthropla
sty. There i
s no
strong evidence from meta-analy
si
s on compari
son of functional outcome
s between PSI and conventional in
strumentation.
sSec_2">Methods
spara0015">Literature search of electronic databases PubMed, MEDLINE, and Cochrane Library for published randomized controlled trials was undertaken. Search was done using a predesigned search strategy. Eligible studies were critically appraised for the methodological quality using Cochrane Collaboration's tool. Functional scores used for meta-analysis were Knee Society Knee Score, Knee Society Function Scores, Oxford Knee Score, Western Ontario and McMaster Universities Arthritis Index, and Visual Analogue Scale score for pain (0-10 scale).
sSec_3">Results
spara0020">Five randomized controlled trials involving 379 total knee arthroplasties were eligible to be included in the meta-analysis. No significant improvement in short-term functional outcomes was seen after using PSI compared to the control group in terms of Knee Society Knee Score (weighted mean difference 0.65, 95% CI −4.41 to 5.70, P = .80) and Knee Society Function scores (weighted mean difference 0.01, 95% CI −3.26 to 3.28, P = .99), Oxford Knee Score (weighted mean difference 3.36, 95% CI −3.48 to 10.00, P = .34), Western Ontario and McMaster Universities Arthritis Index (weighted mean difference −7.47, 95% CI −23.94 to 8.99, P = .37), and Visual Analogue Scale score for pain (weighted mean difference −0.10, 95% CI −0.41 to 0.21, P = .53).
sSec_4">Conslusion
spara0025">Current literature is insufficient to address whether there is a benefit of PSI in total knee arthroplasty in terms of improvement in functional outcomes.
