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Results for “FRACTURE FIXATION”

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At least 235 records · Page 13Linked to original sources
PubMed1991

Osteolytic changes accompanying degradation of absorbable fracture fixation implants.

We analysed the radiographs of 67 patients with displaced malleolar fractures treated by open reduction and internal fixation using absorbable polyglycolide rods. Seventeen patients developed a discharging inflammatory foreign-body reaction, a complication unique to these fixation devices. In 34 patients ovoid osteolytic foci, usually 5 to 10 mm in diameter, appeared within the implant channels six to 12 weeks after the operation. The same lesion occurred in 14 of the 17 patients who developed a foreign-body reaction, whereas only 20 out of the 50 patients with an uneventful course showed osteolytic areas (p less than 0.01). In patients with a foreign-body reaction the osteolytic foci tended to occur in the deepest parts of the implant channels. However, after one year the normal structure of the bone was restored.

Adult↗
PubMed1997

Increased neurologic complications associated with postoperative epidural analgesia after tibial fracture fixation.

A retrospective study of 63 patients with surgically treated tibial fractures was performed. The type of postoperative analgesia was compared against the type of fracture, mechanism of injury, type of fixation, adequacy of pain control, and incidence of neurologic complications. The only difference observed among all of these comparisons was that patients given postoperative epidural analgesia with local anesthetics were 4.1 times more likely to have a neurologic complication than those receiving systemic narcotics (P = 0.0496). We conclude that patients who have undergone surgical treatment of tibial plateau or shaft fractures have a significantly higher risk of developing neurologic complications when post-operative epidural analgesia is used.

Adult↗
PubMed2002

[Medial approaches to the distal humerus for fracture fixation].

PURPOSE OF THE STUDY: We report our experience with the medial and medioposterior approaches to the humeral diaphysis for plate fixation of the proximal humerus. MATERIAL AND METHODS: Fifteen patients were treated for shaft fracture (n=13) or nonunion (n=2) of the distal third of the humerus without radial nerve involvement. The medial approach was performed in the supine position and the medioposterior approach in the prone position. Bone healing was achieved in all cases. Three patients experienced sensorial irritation in the territory of the median nerve after the medial approach; one case did not regress. There were no complications with the medioposterior approach. DISCUSSION: Dissection of the radial nerve can be avoided with these two approaches which also have a cosmetic advantage. The medioposterior approach appears to be preferable because of the comfortable operative position and the absence of risk for the median nerve. Both approaches are however contraindicated if there is preoperative involvement of the radial nerve.

Adolescent↗
PubMed1995

Clinical and in vitro evaluation of mandibular angle fracture fixation with the two-miniplate system.

More stable fixation and greater resistance against infection are achieved in mandibular angle fractures if the two-miniplate-fixation technique is used. One plate is applied at the superior border and a second plate is applied at the inferior border of the buccal cortex. Strong support for this argument was demonstrated in these in vitro and pilot clinical studies. It is concluded that the two-miniplate-fixation technique is indicated in cases of mandibular angle fracture to achieve stability of the fracture site and early mobility of the jaw.

Adolescent↗
PubMed2001

Rapid application fracture fixators - an evaluation of mechanical performance.

OBJECTIVE: This study evaluates the mechanical performance of the Pinless and Centrafix fixators for rapid application to tibial fractures in a disaster or battlefield scenario. DESIGN: Comparative study based on measurements made in the laboratory. BACKGROUND: The Pinless and Centrafix fixators may be considered for rapid application to stabilise fractures in emergency conditions without the aid of electrical equipment such as power drills for bone screw insertion or image intensifiers to facilitate bone alignment. METHODS: Stiffnesses, maximum service loads and fatigue strengths of the fixators were measured in the orientations of loading that correspond to walking and stretcher-bearing. These properties were compared with measurements on three conventional fixators, the AO, Shearer and Triax. RESULTS: The Centrafix stiffnesses were 31 N/mm (axial), 1 N/ degrees (torsional shear), 0.4 N/ degrees (coronal plane bending), 4 N/ degrees (sagittal plane bending) and 11 N/mm (transverse shear) and strengths were 95 N (axial) and 1.9 Nm (bending). Corresponding Pinless stiffnesses were 43 N/mm, 0.7 N/ degrees, 0.3 N/ degrees, 8 N/ degrees and 50 N/mm, and strength was 55 N (axial). CONCLUSIONS: The stiffness and strength of both rapid application fixators in simulated walking was judged to be low, and additionally the stiffness and strength of the Centrafix in simulated stretcher-bearing was judged to be low. RELEVANCE: The Pinless is not recommended for weight-bearing subjects with unstable fractures. The Centrafix is not recommended for stretcher-bearing or weight-bearing with unstable fractures.

Biomechanical Phenomena↗