ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2014
Use of a gyroscope sensor to quantify tibial motions during a pivot shift test.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Wearable sensor technology and machine learning for anterior cruciate ligament injury diagnosis: an exploratory feasibility study.BMJ open · 2026Article
- Steep medial posterior tibial slope angle and ramp lesion are independent risk factors for an increase in quantitatively measured pivot shift in patients with ACL-deficient knees.Journal of experimental orthopaedics · 2024Article
- Diagnosis and treatment of rotatory knee instability.Journal of experimental orthopaedics · 2019Review
- Evaluation of pivot shift phenomenon while awake and under anaesthesia by different manoeuvres using triaxial accelerometer.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017Article
- Assessment of the pivot shift using inertial sensors.Current reviews in musculoskeletal medicine · 2016Review
- Objective measures on knee instability: dynamic tests: a review of devices for assessment of dynamic knee laxity through utilization of the pivot shift test.Current reviews in musculoskeletal medicine · 2016Review
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Authors and funding
5 authors.
Funding
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Abstract
purposeThe purpose of this preliminary study was to evaluate the use of a gyroscope sensor to record rotations of the tibia about its long axis during a clinical pivot shift examination.
methodsTen patients with a unilateral ACL injury were tested under anaesthesia prior to surgery. Each ankle was placed in neutral position, wrapped and stabilized with athletic tape, and a small aluminium plate was taped to the bottom of the foot. A data recovery module was attached to the bottom of each plate using a swivel bracket that allowed alignment of the gyro axis with the long axis of the tibia. The module contained a triaxial gyroscope, battery and circuitry for wireless data broadcast to a laptop computer. Ten pivot shift tests were performed on both knees, and the surgeon's clinical grading of the pivot shift was noted for each limb. Mean values (10 trials) of peak tibial rotational velocity and integrated tibial rotation were compared between knees for each patient during the pivot shift reduction event (external tibial rotation during knee flexion).
resultsFive patients (50%) had significantly greater tibial rotation in their injured knee, four showed no difference between knees, and one had significantly greater rotation in the normal knee (p < 0.05). Seven patients (70%) showed greater peak rotational velocity in their injured knee, and three had no difference between the knees (p < 0.05). Correlations of rotation and rotational velocity with clinical pivot shift grade were weak (r2 = 0.09 and 0.19, respectively).
conclusionsFoot gyroscope measurements did not correctly identify the injured limb in all patients. Peak rotational velocity during the reduction event was a better indicator of ACL deficiency than the integrated rotation. If this technology is to be more useful clinically, gyroscope data may have to be combined with accelerometer data, perhaps with sensors mounted on both the tibia and femur. LEVEL OF EVIDENCE: Diagnostic case-control study, Level III.
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