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BACKGROUND The continuous increase in the number of fractures of the proximal femur is directly attributable to the worldwide increase in life expectancy. The standard version of the Gamma Interlocking-Nail (standard Gamma nail [SGN], 200-mm length, 10-degree valgus curvature, two distal locking bolts) was designed because of the demands in orthopedic hip(More)
The gamma nail is a temporary implant characterised by a limited life expectancy under continuous dynamic stress. We reviewed a series of 839 patients with gamma nail stabilisation and found two fatigue fractures (0.2%) at the aperture of the distal locking holes. This complication has not been described in the literature. Metallurgic and scanning electron(More)
There has been a marked increase in the incidence of pelvic fractures over the last few years. Associated injuries to the urogenital and vascular system as well as nerve injuries worsen the prognosis. Over a five year period 126 patients with severe pelvic trauma were treated. Out of these 39 (30.9%) sustained additional peripelvic injuries and represent(More)
We evaluated the reliability of the radiographic talar tilt test by MRI examinations in 112 athletes with injuries to the lateral ligaments of the ankle. 25 athletes with a talar tilt > 15 degrees were treated operatively. Intraoperative findings and the talar tilt test were compared with MR imaging results. Our results suggest that MRI is a reliable method(More)
PURPOSE To evaluate the diagnostic value of magnetic resonance (MR) imaging in patients with clinical suspicion of scaphoid fractures and normal initial plain radiographs. MATERIALS AND METHODS MR imaging was performed within 7 days after trauma in 42 patients with clinical suspicion of scaphoid fractures and normal plain radiographs. T1-weighted(More)
Occult fractures of the scaphoid bone occur frequently and may lead to nonunions. In a prospective blind study, we performed magnetic resonance imaging (MRI) examinations on 32 patients who had sustained a wrist injury and in whom a scaphoid fracture was clinically suspected, but could not be confirmed on the original set of two routine and four scaphoid(More)
We retrospectively analyzed 1334 patients who were implanted standard gamma interlocking nails (SGN) to stabilize trochanteric femoral fractures over the years 1992-1998. Reoperation to remove the nails was performed in 37 patients, in 9 of them purely because of pain. Three out of these 9 patients with removed SGN suffered femoral neck fractures in the(More)
To examine the efficacy of repeated clinical examinations and follow-up radiographs, 121 patients were prospectively and consecutively randomised and clinically followed until a final diagnosis was achieved. All of these patients additionally underwent magnetic resonance imaging (MRI) scans within an average of 3 days after trauma to control the results of(More)
An experimental study was performed on 20 cadaveric human proximal femurs to investigate both the reproducibility of their mechanical behavior under uniaxial compression and the correlation of mechanical properties with geometric dimensions and bone density. These variables were assessed by radiography, physical measurement, and dual-energy X-ray(More)
Scaphoid fractures that are not visible on initial radiographs are notoriously difficult to diagnose. This prospective study compared four-view plain radiography at an average of 14 days after injury, with high-definition macroradiography and magnetic resonance imaging at presentation. Initial magnetic resonance imaging was superior to repeat scaphoid(More)