A new knee arthrometer, the GNRB®: Experience in ACL complete and partial tears

Robert, H.; Nouveau, Stéphane; Gageot, S; Gagnière, Bertrand

doi:10.1016/j.otsr.2009.03.009

Cited by 160 publications

(164 citation statements)

References 22 publications

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“…Pre-defined force is applied to the posterior proximal calf by a mechanical jack, and a probe measures the resulting displacement of the proximal anterior tibia. Electrodes over the posterior thigh are designed to account for the effects of incomplete hamstring relaxation [50].…”

Section: Gnrbmentioning

confidence: 99%

“…Robert et al found moderate test sensitivity (Sn 70 %, Sp 99 %) using 134 N force at 20°of knee flexion and a 3-mm SSD diagnostic threshold [50]. Klouche et al found better sensitivity (Sn 92 %, Sp 98 %) using 200 N force with a 1.9-mm SSD diagnostic threshold.…”

Section: Gnrbmentioning

confidence: 99%

“…Recent comparative studies among arthrometers have shown superior reliability and less operator-dependent error with the GNRB device, likely due to its highly consistent robotic technique [50,51]. Studies have found comparable results with the KT-1000, Rolimeter, and Stryker devices, and consistently inferior validity and reliability with the Genucom system [36,55,59,60,64,84,85].…”

Section: Comparative Studiesmentioning

confidence: 99%

“…Some literature suggests that the majority of partial tears have laxity increases of <3 mm and are undetectable with laximetry [78,[88][89][90][91][92]. However, one group using the GNRB arthrometer found 80 % sensitivity and 87 % specificity with their protocol [50]. Other groups have found good diagnostic ability for laximetry when combined with the pivot-shift test, and there is also suggestion that force-displacement curve analysis could be promising for diagnosis severity [19,78].…”

Section: Clinical Applicationmentioning

confidence: 99%

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Anterior cruciate ligament assessment using arthrometry and stress imaging

Rohman

Macalena

2016

Curr Rev Musculoskelet Med

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Arthrometry and stress imaging are useful clinical tools for the objective assessment of anterior cruciate ligament (ACL) integrity. They are most frequently used for the diagnosis of a complete ACL tear when other workup is equivocal, in conjunction with history and clinical exam findings. Other applications include the diagnosis of partial ACL tears, injury prognosis, and post-operative monitoring. However, further studies are needed to validate these uses. Many different devices and techniques exist for objective examination, which have been compared in recent literature. Reliability and validity measures of these methods vary, and often depend upon examiner familiarity and skill. The KT series of devices is the current gold standard for arthrometry, although the newer robotic GNRB device shows promising early results. Newer methods of data interpretation have been developed for stress imaging, and portable technology may impact this field further.

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Section: Gnrbmentioning

confidence: 99%

Section: Gnrbmentioning

confidence: 99%

Section: Comparative Studiesmentioning

confidence: 99%

Section: Clinical Applicationmentioning

confidence: 99%

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Anterior cruciate ligament assessment using arthrometry and stress imaging

Rohman

Macalena

2016

Curr Rev Musculoskelet Med

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“…-GNRB (Genourob, Laval, France) [15]: The GNRB® proposes a motorized application of the force. It is more reliable than the KT-1000® regardless of the examiner's experience [16].…”

Section: Introductionmentioning

confidence: 99%

Objective measurements of static anterior and rotational knee laxity

Mouton

Theisen

Seil

2016

Curr Rev Musculoskelet Med

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Several devices allow to measure anterior and rotational static knee laxity. To date, the use of rotational laxity measurements in the daily clinical practice however remains to be improved. These measurements may be systematically integrated to the follow-up of knee injuries. Physiologic laxity measurements may particularly be of interest for the identification of risk factors in athletes. Furthermore, knee laxity measurements help to improve the diagnosis of knee soft tissue injuries and to follow up reconstructions. Further prospective follow-ups of knee laxity in the injured/reconstructed knees are however required to conclude on the best treatment strategy for knee soft tissue injuries.

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