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At least 1,657 records · Page 92Linked to original sources
PubMed1989

Ankle fusion: a new technique of internal fixation using a compression blade plate.

A new technique of tibiotalar arthrodesis has been developed offering wide exposure, excellent correction of deformity, good bony apposition, and blade plate fixation. This technique has even been effective in cases of ischemic necrosis of the talus. A modified pediatric blade plate is used to effect compression of the talus to the tibia and to provide stability against flexion/extension and varus/valgus movement. Fixation is augmented by a lateral fibular struct screwed to the tibia and talus. In this series, 17 compression blade plate tibiotalar arthrodeses were performed. Follow-up averaged 48 months (range 13 to 85 months). Preoperative diagnoses included postraumatic degenerative arthritis, rheumatoid arthritis, and ischemic necrosis of the talus. Solid fusion was achieved in 16 of 17 patients (94%) with a painless, stable pseudarthrosis in the remaining one. Time to fusion averaged 4 months (range 2 1/2 to 6 months). Functional clinical results were excellent in 12 and good in 4 patients. Of 14 patients evaluated by the Mazur scale, 10 scored within the range of excellent; 2, good; and 2, fair.

Aged↗
PubMed1998

Intra-articular calcaneal fractures: effect of open reduction and internal fixation on the contact characteristics of the subtalar joint.

Intra-articular calcaneal fractures are associated with significant long-term morbidity, and considerable controversy exists regarding the optimum method of treating them. The contact characteristics in the intact subtalar joint were determined at known loads and for different positions of the ankle and subtalar joint, using pressure-sensitive film (Super Low; Fuji, Itochu Canada Ltd, Montreal, Quebec). We measured the contact area to joint area ratio (pressure > 5 kg force/cm2 [kgf/cm2]) which normalizes for differences in joint size and the ratio of high pressure zone (>20 kgf/cm2) as a reflection of overall increase in joint pressure. Three simulated fracture patterns were then created and stabilized with either 1 or 2 mm of articular incongruity. Eight specimens were prepared with a primary fracture line through the posterior facet, eight with a joint depression-type fracture, and six with a central joint depression fracture. A measure of 1 to 2 mm of incongruity in the posterior facet for all three fracture patterns produced significant unloading of the depressed fragment, with a redistribution of the overall pattern of pressure distribution to parts of the facet that were previously unloaded.

Biomechanical Phenomena↗
PubMed1977

A technique of correction and internal fixation for scoliosis.

This report describes a technique for the correction and fusion of scoliosis with the aid of a flexible metal rod that is fixed by wires under tension to the bases of the spinous processes on the convex side of the curve at a number of points. The results in a series of 100 cases are reported. In the last seventy patients, the average correction at one month was 51 per cent, and after two years 45 per cent. In these seventy cases the incidence of pseudarthrosis was 5-7 per cent.

Adolescent↗
PubMed1980

Internal fixation of the fragment of osteochondritis dissecans in the hip using bone transplants. A report of two cases.

Two patients with osteochondritis dissecans of the hip were operated on and their case histories are presented. The relatively large foci were situated on the weight-bearing surface of the joint and the fragments were fixed using transplants of cortical bone. In both cases the focus healed, and the symptoms were relieved. At follow-up six and nine years later respectively, the clinical results were good and no signs of osteoarthritis had as yet developed.

Adolescent↗
PubMed2006

Internal fixation of undisplaced lesions of osteochondritis dissecans in the knee.

A total of 11 patients (12 knees) with stable lesions of osteochondritis dissecans of the knee underwent arthroscopic fixation of the fragments using polylactide bioabsorbable pins. The site of the lesion was the medial femoral condyle in ten knees and the lateral femoral condyle in two. The mean age of the patients was 14.8 years (12 to 16). At a mean follow-up of 32.4 months (13 to 38 months) all fragments had MRI evidence of union. One patient developed early transient synovitis, which resolved with non-steroidal anti-inflammatory medication. All patients returned to sporting activities within eight months of operation and did not require a period of immobilisation.

Adolescent↗
PubMed1975

Early weightbearing after classical internal fixation of medial fractures of the femoral neck.

This study is a survey of a series of 446 patients, treated in the city of Turku, Finland, between 1964 and 1971, for medial fractures of the femoral neck. Fractures were treated by means of the classical nailing method (nail placed along the central axis of the femoral neck, ad modum Smith-Petersen). An unselected group of patients were treated in such a way that they were already allowed to bear weight on the injured limb 2 weeks post-operatively (120 patients). The remaining patients were not allowed to bear weight on the injured limb until 12-14 weeks after nailing (261 patients). The progress of recovery was studied retrospectively, a comparison being made between the early and late weightbearers. Without reference to the type of fracture (according to the classifications of Garden or Pauwels) or to the method of fixing (Smith-Petersen nail, with or without side-plate) bone union was relatively more frequent and failures were relatively less frequent among early weightbearers than among late weightbearers. Early weightbearing had a beneficial effect upon the healing of the fracture and there was no evidence in the case of early weightbearers of any additional complications. A comparative study of the whole patient group on the basis of the time-lag between the accident and the operation--some were nailed 1-3 days, some 4-7 days and some more than a week after the fracture had taken place--revealed no significant differences.

Adolescent↗
PubMed1991

Absorbable polyglycolide screws in internal fixation of femoral osteotomies in rabbits.

In 20 rabbits, a transverse distal femoral osteotomy was fixed using a 4.5 by 30-mm absorbable screw made of polyglycolide. No postoperative external support was used. The consolidation of the osteotomy was investigated histologically, morphometrically, and microradiographically in groups of 4 to 6 rabbits that were followed for 3, 6, 12, or 36 weeks. Fourteen osteotomies showed solid bony union; and in 3, several bone trabeculae were seen to bridge a still partially ununited osteotomy. In another 3 rabbits, each with a follow-up time of 12 or 36 weeks, no convincing signs of progressing consolidation could be seen. Only 1 of these rabbits showed displacement of the distal fragment.

Animals↗
PubMed1992

Internal fixation of femoral neck fractures. Dynamic Hip and Gouffon screws compared in 73 patients.

A prospective, randomized study comparing the Dynamic Hip screws and the Gouffon screws in the treatment of femoral neck fractures was terminated before the planned number of patients had been admitted, owing to a preponderance of early failure of the Gouffon screws (P 0.014); thus only 73 patients entered the study. After three years' follow-up, 25/38 Gouffon screws and 12/35 Dynamic Hip screws had failed. Six patients treated with Gouffon screws and 14 treated with Dynamic Hip screws had died. The outcome still favoured the use of Dynamic Hip screws (P 0.02).

Aged↗
PubMed1995

One-stage internal fixation and anterior fusion in complex cervical spinal disorders.

The authors describe their experience with the Morscher titanium cervical plate with cancellous locking screws in the management of complex cervical spine disorders. Fifty patients (32 males and 18 females) with a mean age of 54 years (range 10 to 84 years) underwent anterior spinal fixation that extended two to five vertebral bodies, using a titanium cervical plate and autogenous bone graft. Surgeries were performed for a variety of reasons: one for a congenital lesion, five for spinal neoplasms, nine for trauma, and 35 for degenerative arthritides. Ten patients had symptomatic kyphoses due to previous laminectomy, failed anterior surgery, or trauma. Satisfactory fixation and fusion with no neurological deterioration was obtained in all but two cases. Specific complications included six cases of dysphagia, one of sepsis, one of Horner's syndrome, and one case in which the patient had a fatal myocardial infarction the night after surgery. At the end of the follow-up period, fusion was found to have occurred in all remaining cases with no outstanding implant-related problems.

Adolescent↗
PubMed1993

Internal fixation of the thoracic and lumbar spine using Roy-Camille plates.

Thirty patients underwent fixation of the thoracic and lumbar spine from 1986 to 1990 using the Roy-Camille pedicular screw fixation system. The spine was stabilized for a variety of pathologic entities including fracture, tumor, spondylolisthesis, postlaminectomy instability, and pseudarthrosis. All but one patient obtained solid fusion based on radiographic and clinical criteria with an average follow up of 19.5 months. All patients reported subjective improvement in preoperative pain levels. There were no neurologic complications associated with the surgical procedure. Roy-Camille plate fixation appears to offer a stable surgical construct in the treatment of thoracic and lumbar spine instability.

Adolescent↗