A quantitative measurement system of lachman test with force sensor

Lachman test is a manual test for examining the anterior cruciate ligament (ACL). An examiner examines the ACL by feeling finger stress. Some measurement device for Lachman test have been developed. However, they aim to analyze not the stress but a motion of the knee joint. Therefore, we set the goal of this study to develop a measurement system for finger stress with force sensor during Lachman test. In the experiment, one knee of a male without any injury was measured. In the results, the finger stress was observed by finger force sensor. As a result, we could detect the finger stress by the developed system.