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Biomedical subjects

K Simesen

Publications and source records attributed to K Simesen.

13 recordsLinked to original sources
PubMed1991

[Amputation and arthrodesis of the shoulder joint after brachial plexus lesions].

Nine patients with severe irreversible brachial plexus lesions were submitted to arthrodesis of the shoulder joint and/or amputation of the forearm, the latter with the object of fitting an artificial limb. In one patient, the arm was re-implanted and biceps function of strength M2 was obtained. Three patients were submitted to microsurgical interventions on the plexus. All of the patients were visited in their homes after an average period of observation of three years (1-8 years). Seven patients were equipped with prostheses, three of these with myoelectric prostheses. One patient employed an orthosis and one had been submitted to arthrodesis of the shoulder joint only. Three of the patients were fitted with prostheses 12 years after the accident but nevertheless obtained good prosthetic function. One of these patients had even been fitted with a prosthesis on the non-dominant side. Forearm amputation was chosen in order to control rotation and to avoid projection of the proximal part of the prosthesis up over the shoulder joint. The absent/reduced sensibility at the level of the amputation did not result in pressure problems from the prosthesis. All of the patients used their prostheses. Pain is not an indication for amputation surgery but does not hinder a good functional result.

Accidents, Traffic↗
PubMed1985

Microsurgery in brachial plexus lesions.

Twenty-two patients with brachial plexus lesions were reviewed 3-6 years after microsurgical repair. Four patients underwent nerve transfer between intercostal nerves and the musculocutaneous nerve. None of these achieved useful elbow flexion. Nerve grafting mainly in the upper part of the plexus was performed in six patients of whom five recovered a useful motor function in at least one important area. Twelve patients underwent neurolysis; useful motor function in at least one important area was achieved in eight. We conclude that microsurgical treatment of brachial plexus lesions is useful in lesions of the upper part of the plexus, distal to the dorsal root ganglion.

Adolescent↗
PubMed1980

Interfascicular transplantation in median nerve injuries.

Twenty-four patients operated upon within a 3-year period for complete median nerve transection using the microsurgical interfascicular transplantation technique were examined after a minimum of 3 years' observation. Functional motoricity (M 3 or higher) was achieved by 83 per cent. With the exception of one patient, all achieved protective tactile sensibility (96 per cent). The results were best for distal lesions in children and youths. The outcome was just as satisfactory as that attained with epineurial suture carried out under ideal conditions. The method was found to be superior to epineurial end-to-end suture in cases of nerve defects longer than 2.5 cm.

Adolescent↗
PubMed1980

Total hip replacement ad modum ring.

A 2-9 years (mean 5.4) follow-up of 295 Ring total hip replacements is presented. The pre- and postoperative conditions were evaluated according to Charnley. There were improvements as regards pain (1.4 to 5.4 points), mobility (2.5 to 5.0 points) and walking ability (2.2 to 4.0 points). The mortality rate was 0.3 per cent. Early deep infection occurred in 0.7 per cent and late deep infection in 0.3 per cent; 4.4 per cent needed revision for loosening (long femoral component 1.0 per cent; short femoral component 8.6 per cent). Radiological loosening indicated by a radiolucent zone of at least 3 mm wide surrounding the prosthesis was found to have no significant correlation with the clinical result. A significantly greater number of patients required reoperation when the short prosthesis was used. Even apart from those reoperated on the results were significantly poorer when the short prosthesis was used. It is concluded that the Ring prosthesis can still be recommended, but that the long prosthesis should be used whenever possible. When this is not possible, a cemented prosthesis should, perhaps, be used.

Adult↗
PubMed1980

Median and ulnar nerve transections treated with microsurgical interfascicular cable grafting with autogenous sural nerve.

Interfascicular nerve grafting was used in 37 median and 26 ulnar nerves, all completely transected. In a follow-up period of 2.5 to 5 years, useful motor recovery (M3 or higher) was achieved in 84% of median nerve lesions; in ulnar nerve lesions, useful motor recovery (M2+ or higher) was achieved in 73%. Sensory recovery with some return of two-point discrimination sense was found in 63% of low median and 50% of low ulnar nerve lesions. In the median nerve group, results for patients younger than 20 years of age were significantly better than in older patients. Neurophysiological investigations gave evidence for nerve regrowth through the grafts in all but one patient, although the loss of axons was probably considerable if the amplitudes of sensory potentials were used as a parameter. Grafts of 2.5 to 5 cm in length gave better results than longer grafts, and results for the distal median nerve lesions were superior to those for the distal ulnar nerve lesions. Use of interfascicular nerve grafting techniques for nerve gaps greater than 2.5 cm is recommended.

Adolescent↗
PubMed1976

Complete sagittal septum of the bladder. A case report.

A case of complete sagittal septum of the bladder, successfully treated by resection of the septum is reported. The literature of this rare malformation is reviewed and alternate surgical procedures are discussed with regards to bladder function and continence.

Adult↗
PubMedDate not supplied

Metaphyseal histology and magnetic resonance imaging in Legg-Calvé-Perthes disease.

Cylindrical biopsy specimens from the proximal femoral metaphysis were obtained in conjunction with surgery in 22 patients with Legg-Calvé-Perthes disease. The histopathological examination revealed fat necrosis, vascular proliferation, and focal fibrosis indicating previous episodes of ischemia. There was no correlation between the histopathological findings and the corresponding magnetic resonance images.

Child↗