Patient specific instrumentation.
rct · Level II
Where this comes from
- Record sourced from PubMed, PMID 24810539.
- Also identified by DOI 10.1016/j.arth.2014.03.019.
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Abstract
Patient specific instrumentation (PSI) has recently been developed as a replacement for traditional instrumentation in total knee arthroplasty (TKA). The study aim was to assess efficiency via the mean total OR time using the PSI versus computer-assisted (CAS) TKAs with accuracy as a secondary endpoint. Sixty patients were randomized to CAS or PSI. A formula was developed to derive a profit ratio (PR) that incorporated costs, revenue, and total OR time. The PSI cases were 1.45 times more profitable than CAS allowing for approximately 3 PSI cases versus 2 CAS cases in one 8 hour OR day. Results from this series show that PSI improves OR efficiency, but does not improve accuracy.
Medical subject headings
- Arthroplasty, Replacement, Knee
- Knee Prosthesis
- Operating Rooms
- Osteoarthritis, Knee
- Surgery, Computer-Assisted
Anatomy
- knee