Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Jan 2000
Case ReportsStress fracture of the cuboid in an 8-year-old boy: a characteristic magnetic resonance imaging diagnosis.
A stress fracture of an 8-year-old boy diagnosed on magnetic resonance (MR) images is presented. Stress fractures of the cuboid are probably more common than previously reported. The diagnosis should be considered even when a history of trauma or chronic overload is absent. The MR appearance of the stress fracture was characteristic.
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Arch Orthop Trauma Surg · Jan 2000
Case Reports Comparative StudyThe 'mirrored' Bennett fracture of the base of the fifth metacarpal.
Fractures of the base of the metacarpals are usually treated conservatively. The intra-articular fracture of the base of the first metacarpal ('Bennett fracture') is an exception to this rule because inadequate repositioning and fixation of the dislocated radial fragment lead to permanent deformity of the joint and subsequent degenerative joint disease. ⋯ Inadequate repositioning will lead to pain, reduced strength and early degenerative joint disease. We present six patients with dislocated intra-articular fractures of the base of the fifth metacarpal to illustrate the necessity of surgical reduction and fixation.
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Arch Orthop Trauma Surg · Jan 2000
Case ReportsDestructive spondyloarthropathy mimicking spondylitis in long-term hemodialysis patients.
A 63-year-old man with end-stage renal disease (ESRD) who had been undergoing hemodialysis for 18 years suffered persistent neck pain, progressive quadriparesis, and a deteriorating ataxic gait during the 6 months before admission. A sudden onset of aggravating quadriparesis and an inability to ambulate occurred during his trip to Sydney, Australia, 1 week before this admission. Vertebral tuberculosis osteomyelitis of the C5/6 segment was considered and treated in a hospital there. ⋯ The cervical spine, especially C5/6, is the most common site of DSA. Spinal instability and neurologic compression cause the clinical symptoms and signs. Adequate decompression and successful cervical fusion ensure the best therapeutic results.
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Arch Orthop Trauma Surg · Jan 2000
Case Reports Comparative StudyExperimental study of bone-implant contact with a parabolic acetabular component (Hofer-Imhof).
Incomplete bone contact with threaded acetabular components is usually attributable to the tapered thread design and sclerotic bone, and might be the reason for early loosening. The self-tapping flat threads of the Hofer-Imhof cup allow accurate insertion without incarceration, even in sclerotic bone. To demonstrate the effectiveness of this threaded cup design based on digitized measurements of bone contact area, six Hofer-Imhof cups were implanted into three human cadavers. ⋯ Factors contributing to poor contact were incomplete reaming, sections which passed through the incisura of the acetabulum, and incomplete contact with the medial aspect of the acetabulum. The aim was to achieve complete bone contact. Because of the higher contact areas observed in sclerotic bone, some sclerotic bone should remain after reaming.
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Arch Orthop Trauma Surg · Jan 2000
Comparative StudyLimb reconstruction with the callus distraction method after bone tumor resection.
The callus distraction method was applied to nine patients who were referred to us because of a bone tumor. Their mean age was 17 years and 3 months (range 7-37 years). Three were female, and 6 were male. ⋯ All of the complications were successfully treated. Functional evaluation gave excellent results in four patients, good in three, and fair in two. This method can be used without any need for massive autogenous bone graft in repairing defects of any length and diameter produced after excision of the lesion and thus can be considered as an alternative to other techniques.