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Current reviews in musculoskeletal medicine
Jun, 2016;9 (2): 170-7.

Knee instability scores for ACL reconstruction.

Ata A Rahnemai-Azar, Jan-Hendrik Naendrup, Ashish Soni, Adam Olsen, Jason Zlotnicki, Volker Musahl
Author Information
  1. Ata A Rahnemai-Azar: Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA, 15213, USA.
  2. Jan-Hendrik Naendrup: Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA, 15213, USA.
  3. Ashish Soni: Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA, 15213, USA.
  4. Adam Olsen: Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA, 15213, USA.
  5. Jason Zlotnicki: Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA, 15213, USA.
  6. Volker Musahl: Department of Orthopaedic Surgery, University of Pittsburgh, 3471 Fifth Avenue, Pittsburgh, PA, 15213, USA. musahlv@upmc.edu.
PMID: 26980119 DOI: 10.1007/s12178-016-9339-6

Abstract

Despite abundant biological, biomechanical, and clinical research, return to sport after anterior cruciate ligament (ACL) injury remains a significant challenge. Residual rotatory knee laxity has been identified as one of the factors responsible for poor functional outcome. To improve and standardize the assessment of knee instability, a variety of instability scoring systems is available. Recently, devices to objectively quantify static and dynamic clinical exams have been developed to complement traditional subjective grading systems. These devices enable an improved evaluation of knee instability and possible associated injuries. This additional information may promote the development of new treatment algorithms and allow for individualized treatment. In this review, the different subjective laxity scores as well as complementary objective measuring systems are discussed, along with an introduction of injury to an individualized treatment algorithm.

Keywords

ACL Anterior cruciate ligament Laxity scores Quantitative pivot shift test Treatment algorithm

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