Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Jan 1999
Self-locking tension band technique. A new perspective in tension band wiring.
After experiencing some complications with the AO modified tension band technique, we have made a small modification to prevent proximal migration of the Kirschner wires. In this modification, the proximal ends of the wires are bent to form a loop and the cerclage wire passed through them. In this way, Kirschner wires and cerclage wire lock each other, preventing migration. ⋯ Fracture union occurred in 8 weeks (mean). We did not see any postoperative complications or implant failures. Rigid fixation allows early mobilization which quickly restores functional status.
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Arch Orthop Trauma Surg · Jan 1999
Comparative StudyRevascularization and new bone formation in heat-treated bone grafts.
Human imnmunodeficiency virus (HIV) infection is one of the possible serious complications associated with bone allografts. In order to prevent infection, grafted bone is sterilized by various treatments. Heat treatment has attracted attention as a simple and practical method. ⋯ The grafts heat-treated at 80 degrees C showed relatively good revascularization and new bone formation. However, the grafts heat-treated at 100 degrees C showed unsatisfactory revascularization and bone formation, less than 40% of control 8 weeks after grafting. Therefore, heat treatment at 60-80 degrees C does not seriously affect revascularization and new bone formation.
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Arch Orthop Trauma Surg · Jan 1999
Postoperative ossifications of the shoulder. Incidence and clinical impact.
Periarticular ossifications of the shoulder after surgery have been described since the beginning of the century. Risk factors and the clinical impact of heterotopic bone formation have been discussed controversially. After open surgery on the shoulder, 131 patients (rotator cuff repair n = 106, acromioplasty n = 25) were included in a retrospective study if pre- and postoperative X-rays were available. ⋯ As significant risk factors for the formation of heterotopic bone, the existence of osteoarthritis and the duration and complexity of the procedure could be cited. The appearance of periarticular ossifications after surgery of the shoulder seems to be of minor clinical impact. Severe cases with major functional deficits should and can be prevented by a fast and atraumatic operation technique.