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An investigation to examine the inter‐tester and intra‐tester reliability of the Rolimeter® knee tester, and its sensitivity in identifying knee joint laxity
Author(s) -
Hatcher Julian,
Hatcher Alison,
Arbuthnot Jamie,
McNicholas Mike
Publication year - 2005
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1016/j.orthres.2005.06.003.1100230623
Subject(s) - reliability (semiconductor) , sensitivity (control systems) , knee joint , joint (building) , orthodontics , computer science , reliability engineering , engineering , medicine , structural engineering , physics , surgery , electronic engineering , power (physics) , quantum mechanics
Purpose: The purpose of this study is to evaluate the Rolimeter® knee tester (Aircast®, Europe) as reliable and clinically sensitive tool for identifying and quantifying knee joint laxity utilising a sample of both known ACLD and normal knees. Methods: Thirty matched subjects (15 known ACLD and 15 normal subjects) were tested for knee joint laxity using the Rolimeter®. Each subject was measured at both 90° and 30° of knee flexion, by each of the six investigators. This was then repeated again by all six investigators so that inter‐tester and intra‐tester reliability could be examined. Results: Results showed that there was good reliability between testers, and intra‐tester reliability was good for both left and right knees in both 90° and 30° of flexion. Results also demonstrated a high level of sensitivity for determining knee joint laxity in ACLD compared to normal knees. Conclusion : The Rolimeter® knee tester is a reliable device for quantifying knee joint laxity, and is sensitive enough to identify anterior cruciate ligament deficiency. © 2005 Orthopaedic Research Society. Published by Elsevier Ltd. All rights reserved.