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Published on: June 12, 2019
Instrument-based anterolateral rotatory laxity assessment of the knee has a high intra-observer and inter-observer
Juan Pablo Martinez-Cano1, Filippo Familiari2, Gustavo Vinagre3
1Departamento de Ortopedia, Fundación Valle del Lili, Carrera 98 No. 18-49, Cali 760032, Colombia; Universidad Icesi, Calle 18 No. 122-135, Cali 760031, Colombia.
Importance:
A reliable evaluation of anterolateral rotatory instability in the anterior cruciate ligament (ACL) deficient knee is important to help surgeons determine which patients might need concurrent anterolateral augmentation procedures.
Objective:
The purpose of this study was to systematically review studies that assess the intra-observer and inter-observer reliability of instruments used to measure anterolateral rotatory laxity of the knee.
Evidence Review:
A comprehensive literature review was conducted according to the 2020 Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement, using PubMed, Embase, Scopus, and Google Scholar databases for original, English-language studies evaluating the reliability of objective or instrument-based anterolateral rotatory laxity of the knee until October 31, 2022. Reliability data were extracted from text, tables, and figures.
Findings:
Twelve studies, with patients between the ages of 14-63 years, were included. The instruments used to measure anterolateral rotatory knee laxity included inertial sensors (n = 9), magnetic resonance imaging (n = 1), and navigation systems (n = 2). The global intra-observer intraclass correlation coefficient for these devices was between 0.63 and 0.97, and the global inter-observer reliability was between 0.63 and 0.99.
Conclusion And Relevance:
Instrument-based anterolateral rotatory knee laxity assessment has moderate to good intra- and inter-observer reliability. Evaluating anterolateral instability in ACL-deficient knees with these devices could help in decision-making when considering anterolateral augmentation.
Level Of Evidence:
IV.
