A new quantitative method for pivot shift grading View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2012-02-10

AUTHORS

S. Kopf, R. Kauert, J. Halfpaap, T. Jung, R. Becker

ABSTRACT

PurposeThe purposes of the study were to evaluate and to quantify the pivot shift phenomenon by using a small and easy to handle measuring device for pivot shift quantification.MethodsTwenty patients (forty knees) with primary torn anterior cruciate ligaments (ACL) were tested under anesthesia, graded by the examiner and by the device according to the IKDC classification [normal (0), glide (1), clunk (2), and gross (3)]. For the grading by the device, a femoral and a tibial miniature inertial sensor measured the acceleration and the angular velocities. Three parameters were used for pivot shift identification and quantification: (1) difference between the positive and negative acceleration peak value (adiff), (2) the maximum jerk (jmax), and (3) the standard deviation (SDa) of the acceleration. The ratio between the ACL-deficient and the intact knees was calculated in order to normalize the data.ResultsThe pivot shift phenomenon could be identified, and all three parameters showed significant higher values in the ACL-deficient knees compared to the intact knees (p < 0.05). The grading by examiner did not significantly correlate with adiff (p = 0.38; r = 0.21), jmax (p = 0.36; r = −0.22), SDa (p = 0.65; r = 0.11), and grading by the device (p = 0.62; r = 0.12).ConclusionsThe present study has shown that the quantification of the pivot shift test is practicable when inertial sensors are used. The results have shown that the subjective grading of the pivot shift test does not correlate well with objective quantification. More... »

PAGES

718-723

References to SciGraph publications

  • 2010-10-15. A mechanized and standardized pivot shifter: technical description and first evaluation in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • 1998-04. Use of the International Knee Documentation Committee guidelines to assess outcome following anterior cruciate ligament reconstruction in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • 1993-09. Evaluation of knee ligament injuries with the IKDC form in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • 2010-08-24. A prospective randomised study of anatomical single-bundle versus double-bundle anterior cruciate ligament reconstruction: quantitative evaluation using an electromagnetic measurement system in INTERNATIONAL ORTHOPAEDICS
  • 2011-03-16. A matched pairs comparison of single- versus double-bundle anterior cruciate ligament reconstructions, clinical results and manual laxity testing in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • 2008-03-01. In vivo analysis of the pivot shift phenomenon during computer navigated ACL reconstruction in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • 2011-02-25. Evaluation of rotational instability in the anterior cruciate ligament deficient knee using triaxial accelerometer: a biomechanical model in porcine knees in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • 2010-12-03. Reconstructive versus non-reconstructive treatment of anterior cruciate ligament insufficiency. A retrospective matched-pair long-term follow-up in INTERNATIONAL ORTHOPAEDICS
  • 2007-01-10. Double-bundle versus single-bundle anterior cruciate ligament reconstruction: a prospective, randomize clinical study in KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s00167-012-1903-z

    DOI

    http://dx.doi.org/10.1007/s00167-012-1903-z

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1035508468

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/22323098


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