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The in vivo relationship between the degree of voluntary soft tissue tension and articular conformity after total knee arthroplasty (TKA) and anteroposterior (AP) displacement was simultaneously investigated by analyzing LCS prostheses (posterior cruciate ligament-sacrificing rotating platform design) in 20 knees from 20 patients. AP displacement was measured using the KT-2000 arthrometer, at 30°...
We used ultrasonographic heel measurements to compare the bone quality of patients who underwent total knee arthroplasty (TKA), age-matched controls and patients who suffered from hip fracture. The broadband ultrasound attenuation (BUA; dB/MHz) of the TKA (70), control (70) and hip fracture (107) groups was 42.2+/-15.5, 40.2+/-14.9 and 22.9+/-13.3, respectively. The hip fracture group was significantly...
The objective of this study was to measure three-dimensional knee motion or functional laxity with implants which either retained the posterior cruciate ligament (PCL+) in ten patients, or substituted for excised PCL with a posterior stabilized articulating surface (PCL-S) in ten patients. The intent was to identify the specific influence and significance of the presence of the PCL under active flexion...
To determine which axes on the short radiograph (36 cm 43 cm) correlate best with the corresponding axes on the long radiograph (36 cm 130 cm), 100 long anteroposterior radiographs were taken postoperatively following total knee arthroplasty. The central 43 cm of the long radiograph were used to simulate a short radiograph of the knee. For the femur, the short-radiograph axis drawn...
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