Instrumented measurement of anterior-posterior translation in knees with chronic anterior cruciate ligament tear.
Anteroposterior translation of the knee joint was measured with a Knee Signature System device on 12 women and 14 men with a unilateral, chronic, isolated, anterior cruciate ligament (ACL) tear. A control group with stable knees consisted of 10 women and 10 men. Anterior translation at 178 N load of the uninjured knees was 8.0 mm (+/-2.2 mm) and in knees with an ACL tear, 14.2 mm (+/-4.2 mm). Corresponding values for anteroposterior translation were 12.1 mm (+/-2.5 mm) and 19.3 mm (+/-4.9 mm), respectively. A difference of 3 mm or more in anteroposterior translation at 178 N load between injured and uninjured knees indicated an ACL tear with 85% specificity and 88% sensitivity.
Mononen
T
T
Orthopaedic Hospital of the Invalid Foundation, Helsinki, Finland.
Alaranta
H
H
Harilainen
A
A
Sandelin
J
J
Vanhanen
I
I
Osterman
K
K
D000328:Adult; D016118:Anterior Cruciate Ligament / Q000503:physiopathology; D000070598:Anterior Cruciate Ligament Injuries; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis* / Q000503:physiopathology; D007718:Knee Injuries / Q000175:diagnosis / Q000503:physiopathology*; D007719:Knee Joint / Q000503:physiopathology*; D008297:Male; D012680:Sensitivity and Specificity