Clinical orthopaedics and related research
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Clin. Orthop. Relat. Res. · Feb 1998
Comparative StudyArthrodesis versus resection arthroplasty for failed hallux valgus operations.
The results for 18 patients (20 feet) in whom a hallux valgus procedure had failed were reviewed. Ten patients (11 feet), with a mean age of 63 years, had correction with Keller resection arthroplasty and were observed for an average of 10 years (range, 3-15 years). The hallux valgus angle improved an average of 11 degrees +/- 3 degrees, and the intermetatarsal angle improved an average of 2 degrees +/- 1.7 degrees. ⋯ None of the patients required additional revision operation. Resection arthroplasty is a simple procedure and does not require cast immobilization. Resection arthroplasty and arthrodesis are reasonable options for salvage treatment of failed hallux valgus operations in older patients because good results were achieved in six of nine (67%) feet after arthrodesis and in six of 11 (54%) feet after resection.
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Clin. Orthop. Relat. Res. · Feb 1998
Anatomic considerations of superior cluneal nerve at posterior iliac crest region.
No previous studies describe the anatomic relationship of the superior cluneal nerve to the posterior iliac crest and thoracolumbar fascia. In the current study, 15 cadavers were dissected to determine the relationship of the superior cluneal nerve to the posterior iliac crest and thoracolumbar fascia. The distances from the medial branch of the superior cluneal nerve to the posterior superior iliac crest and the midline were 64.7 +/- 5.3 mm and 81.0 +/- 9.2 mm, respectively. ⋯ The intermediate and lateral branches of the superior cluneal nerve either pierce the thoracolumbar fascia or pass through an orifice or fissure in the thoracolumbar fascia. In two specimens, the medial branches of the superior cluneal nerve were constricted within the osteofibrous tunnel. The nerve was entrapped between the rigid fibers of the thoracolumbar fascia and the iliac crest.
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Clin. Orthop. Relat. Res. · Feb 1998
Biography Historical ArticleHistory of the AO and its global effect on operative fracture treatment.
In 1958 a group of Swiss general and orthopaedic surgeons established the AO (Arbeitsgemeinschaft für Osteosynthesefragen) or the Association of the Study of Internal Fixation (ASIF) to strive to transform the contemporary treatment of fractures in Switzerland. This association was revolutionary in development of instruments and implants for operative fracture treatment. The first instructional course for teaching the use of these instruments and implants occurred in Davos, Switzerland, in the newly founded Laboratory of Experimental Surgery in 1960. ⋯ In 1984, the AO/ASIF Foundation was created with an AO Board of Trustees comprising 90 leading trauma surgeons from throughout the world. Continuous research, implant and instrument development, clinical documentation, and multifaceted educational opportunities are coordinated by the AO/ASIF Foundation to maintain its position as the international authority in the treatment of trauma. The medical community recognizes today the enormous positive global effect that this respected and ever changing organization has had by continually improving operative fracture treatment.