No clear benefit of patient-specific instruments over conventional instrumentation in unicompartmental knee arthroplasty: A secondary analysis of a multicentre randomised trial with 5-year follow-up

2026-08-11

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Alexandra M Leenders *

Martijn Gerhardus Maria Schotanus

Jasper Most

Rutger Coen Ivo Van Geenen

Bert Boonen

DOI：10.1002/ksa.70515

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The objective of the secondary analysis of this randomised controlled trial, conducted at two medical centres, was to compare the revision-free survivorship and patient-reported outcome measures (PROMs) of patient-specific instruments (PSI) versus conventional instrumentation (CI) used in unicompartmental knee arthroplasty (UKA) over a mid-term follow-up period of at least 5-years. The hypothesis was that both groups would show similar outcomes.

Keywords:

conventional instrumentation

patient specific instruments

prosthesis survival

randomised controlled trial

unicompartmental knee arthroplasty

No clear benefit of patient-specific instruments over conventional instrumentation in unicompartmental knee arthroplasty: A secondary analysis of a multicentre randomised trial with 5-year follow-up

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