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Surgical dislocation of the hip is rarely undertaken. The potential danger to the vascularity of the femoral head has been emphasised, but there is little information as to how this danger can be avoided. We describe a technique for operative dislocation of the hip, based on detailed anatomical studies of the blood supply. It combines aspects of approaches(More)
PURPOSE In this study, we measured functional outcomes of patients treated arthroscopically with microfracture for full-thickness traumatic defects of the knee. TYPE OF STUDY A case series of patients with 7 to 17 years' follow-up. METHODS Between 1981 and 1991, a total of 72 patients (75 knees) met the following inclusion criteria: (1) traumatic(More)
The primary source for the blood supply of the head of the femur is the deep branch of the medial femoral circumflex artery (MFCA). In posterior approaches to the hip and pelvis the short external rotators are often divided. This can damage the deep branch and interfere with perfusion of the head. We describe the anatomy of the MFCA and its branches based(More)
BACKGROUND Previous studies of knee joint function after anterior cruciate ligament deficiency have focused on measuring anterior-posterior translation and internal-external rotation. Few studies have measured the effects of anterior cruciate ligament deficiency on 6 degrees of freedom knee kinematics in vivo. OBJECTIVE To measure the 6 degrees of freedom(More)
BACKGROUND Anterior shoulder instability associated with severe glenoid bone loss is rare, and little has been reported on this problem. Recent biomechanical and anatomical studies have suggested guidelines for bony reconstruction of the glenoid. HYPOTHESIS Anatomical glenoid reconstruction will restore stability in shoulders with recurrent anterior(More)
Patients who had a revision total hip arthroplasty using the Bürch-Schneider anti-protrusio cage (APC) by a single surgeon have been reviewed after a minimum of five years. There were 63 operations in 58 patients with an average age of 63 years (41 to 83) at the time of revision. At an average follow-up of 8.5 years (5 to 18), 15 patients (25.9%) rated(More)
BACKGROUND Most knowledge regarding cruciate ligament function is based on in vitro experiments. PURPOSE To investigate the in vivo elongation of the functional bundles of the anterior cruciate ligament and posterior cruciate ligament during weightbearing flexion. HYPOTHESIS The biomechanical role of functional bundles of the anterior cruciate ligament(More)
In the rat homologue of the mouse Q/TL region, grc-G/C, a TL-like gene (RT1.N) has been identified recently. This paper reports on a Q-like gene, designated RT1.0, that maps in the same region. It contains a 5' untranslated region (UT), signal peptide, alpha 3 domain, transmembrane region, cytoplasmic domain (three exons) and 3'UT region. Comparison with(More)
BACKGROUND The avascular portion of the meniscus cartilage in the knee does not have the ability to repair spontaneously. HYPOTHESIS Cell-based therapy is able to repair a lesion in the swine meniscus. STUDY DESIGN Controlled laboratory study. METHODS Sixteen Yorkshire pigs were divided into four groups. A longitudinal tear was produced in the(More)
BACKGROUND Recent follow-up studies have reported a high incidence of joint degeneration in patients with anterior cruciate ligament reconstruction. Abnormal kinematics after anterior cruciate ligament reconstruction have been thought to contribute to the degeneration. HYPOTHESIS Anterior cruciate ligament reconstruction, which was designed to restore(More)