Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Jan 1992
No physiologic age-related increase of circulating somatomedin-C during early stage of Perthes' disease: a longitudinal study in 21 boys.
Perthes' disease was originally viewed as a local ischaemic necrosis of the femoral head. Several authors, however, have presented data suggesting that children with this disease also suffer from a general disorder of skeletal maturation. Hormonal changes in the hypothalamus-pituitary-growth plate axis have been discussed as a possible underlying cause and contradictory results reported on the role of the somatomedins in this process. ⋯ The physiologic increase with age of plasma Sm-C levels in the control group was either absent or diminished in children with early-stage Perthes' disease (P less than 10(-6), signs test). The Sm-C values in affected children were low. Our data correlate well with reports from others of retarded skeletal maturation in children with Perthes' disease and support the hypothesis of an accompanying disorder of the synthesis or release of Sm-C/IGF-I or its binding proteins.
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Arch Orthop Trauma Surg · Jan 1992
Case ReportsReconstruction of bony defects using the Ilizarov "bone transport" technique. A preliminary report.
Ilizarov's method of percutaneous transosseous osteosynthesis allows management of complex skeletal deformities using elastic external fixation, atraumatic corticotomy and gradual adaptations between bony fragments. One particular application, useful in the reconstruction of bony defects, is the "lift" or "bone transport" technique, in which in fact internal lengthening is carried out. Using some of their first cases as illustrations, the authors describe the technique and its potential problems.
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Arch Orthop Trauma Surg · Jan 1992
Comparative StudyCT scan compared to tomography in suspected hip fracture.
In a prospective study the diagnostic value of CT scanning and tomography were compared in the cases of eight consecutive patients in whom initial radiographs showed a suspected hip fracture. CT scan did not contribute more to diagnosis than tomography.
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Arch Orthop Trauma Surg · Jan 1992
Case ReportsBilateral thoracic outlet syndrome with bilateral radial tunnel syndrome: a double-crush phenomenon. Case report.
A case of bilateral thoracic outlet syndrome combined with bilateral radial tunnel syndrome is reported. Persisting complaints in the upper extremities after bilateral first-rib resection and scalenotomy were due to radial nerve entrapment in the radial tunnel. Although this bilateral double-crush phenomenon is extremely rare, and has not been reported previously, persistence of symptoms after initial treatment of a nerve entrapment is an indication to search for another site of compression.
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Arch Orthop Trauma Surg · Jan 1992
Comparative StudyProstaglandin E2 level in tissue surrounding aseptic failed total hips. Effects of materials.
Production of inflammatory mediators (IM) by cells and specifically macrophages around loosened implants may be responsible for their loosening. Our hypothesis was that different materials give rise to different amounts of these IM. It is thought that alumina/alumina for total hip replacement (THR), which has been used for 15 years in our orthopedic department, may produce less IM than other systems. ⋯ Finally, 15 samples were considered adequate for inclusion in this study. Two groups were analyzed and compared: the alumina/alumina couple and the metal/polyethylene couple. Tissue surrounding the first group demonstrated a PGE2 level of 69 +/- 56 fmol/mg wet weight compared to 202 +/- 156 fmol/mg for the second.(ABSTRACT TRUNCATED AT 250 WORDS)