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Three designs of knee braces were investigated in 21 knees with arthroscopically verified old tears of the anterior cruciate ligament. Anterior-posterior and rotatory instability with and without anterior traction were recorded with roentgen stereophotogrammetric analysis. Two of the designs...
Intimate contact at the bone-porous surface interface is not always achievable in noncemented prosthetic implantation. We investigated the effect of hydroxyapatite (HA) coating on skeletal attachment in non-interference fit 4 weeks after implantation in 6 mature dogs. The push-out test of...
Retrospectively, we reviewed the treatment and outcome of 46 isolated fractures of the ulnar shaft. Of 18 fractures treated by immediate open reduction and internal fixation, one open fracture became infected and failed to unite. Of 28 fractures treated closed, seven failed to unite. The factors...
During reoperation for nonunion of a cervical hip fracture, a profuse arterial bleeding from the pelvis occurred, which was due to perforation of the iliac vessels by the Olmed screws.
Preoperatively and postoperatively, patellar motion in 11 knees with chondromalacia was analyzed by MRI at 0°, 10°, 20°, and 30° of knee flexion. The preoperative patellar position clearly deviated from normal at 0°–10° of knee flexion. The lateral release operation corrected this deviation.
The gentamicin-containing collagen sponge is a new product intended for local application in bone and soft-tissue infections. The release of gentamicin from the collagen sponges was compared in vitro to that from polymethyl-methacrylate (PMMA) beads. A static and kinetic experimental design was...
A 14-year-old boy sustained closed rupture of the extensor digitorum communis, extensor pollicis longus, and extensor indicis proprius ten-dons following a volarly displaced Salter-Harris Type II fracture of the distal end of the radius. The condition was treated with tendon grafts, but some...
Ninety-three cases with a car-accident soft-tissue injury of the cervical spine were studied prospectively. Neck pain and stiffness were the main initial symptoms, while 4 cases had abnormal neurologic signs. At follow-up, on an average 2 years after the accident, 42 percent had recovered...
A saline-cooled saw, which has been shown to give good control of the heat generation during bone cutting under laboratory conditions, was tested in in vivo. With a saline flow of 80 mL/min, the maximum cutting temperature in 30 knee prosthetic operations was 32 (25–37) °C in the saw blade and...
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