Knee joint laxity can result from soft tissue injury, such as a ligament tear, or from genetic factors such as joint hypermobility syndrome and various forms of Ehlers–Danlos Syndrome. Stress radiographs have been used for several years to detect the amount of varus/valgus knee laxity in the knee joint. The popularity of radio graphic methods of monitoring the knee joint has, however, been adversely affected by the X-ray exposure of an assistant that performs the stress imaging. They are also used to evaluate the degree of compartmental involvement in degenerative osteoarthritis. The cruciate ligaments are thought to be a secondary stabilization mechanism in the varus/valgus orientation [1,2]. Stress X-rays are an essential component of the assessment of a patient with a knee ligament injury. Such X-rays provide an objective measure for determining the extent of an injury prior to surgery; assessing whether a partial ligament tear...
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Biomedical Engineering Division,
Department of Human Biology,
Faculty of Health Sciences,
University of Cape Town,
e-mail: Sudesh.Sivarasu@uct.ac.za
Trichy Road,
Article navigation
June 2014
Technical Briefs
Novel Device for Measuring Knee Laxity at Various Flexion Angles—Laxmeter1
Sudesh Sivarasu,
Biomedical Engineering Division,
Department of Human Biology,
Faculty of Health Sciences,
University of Cape Town,
e-mail: Sudesh.Sivarasu@uct.ac.za
Sudesh Sivarasu
MRC/MIRU
,Biomedical Engineering Division,
Department of Human Biology,
Faculty of Health Sciences,
University of Cape Town,
Cape Town, Western Cape 7925
,South Africa
e-mail: Sudesh.Sivarasu@uct.ac.za
Search for other works by this author on:
Sarthak Patnaik
Trichy Road,
Sarthak Patnaik
Ortho One Hospital
,Trichy Road,
Coimbatore, Tamilnadu 641005
, India
Search for other works by this author on:
Sudesh Sivarasu
MRC/MIRU
,Biomedical Engineering Division,
Department of Human Biology,
Faculty of Health Sciences,
University of Cape Town,
Cape Town, Western Cape 7925
,South Africa
e-mail: Sudesh.Sivarasu@uct.ac.za
Sarthak Patnaik
Ortho One Hospital
,Trichy Road,
Coimbatore, Tamilnadu 641005
, India
DOI: 10.1115/1.4026995
Manuscript received February 21, 2014; final manuscript received March 3, 2014; published online April 28, 2014. Editor: Arthur G. Erdman.
J. Med. Devices. Jun 2014, 8(2): 020938 (2 pages)
Published Online: April 28, 2014
Article history
Received:
February 21, 2014
Revision Received:
March 3, 2014
Citation
Sivarasu, S., and Patnaik, S. (April 28, 2014). "Novel Device for Measuring Knee Laxity at Various Flexion Angles—Laxmeter." ASME. J. Med. Devices. June 2014; 8(2): 020938. https://doi.org/10.1115/1.4026995
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