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Biomedical subjects

R Hagen

Publications and source records attributed to R Hagen.

At least 73 records · Page 4Linked to original sources
PubMed1980

Femoral and sciatic neuropathies after total hip arthroplasty.

Six patients with peripheral nerve lesions after total hip replacements were reviewed. The incidence of peripheral nerve lesions was six out of 825, i.e. 0.7 per cent. The neuropathies, four sciatic, one femoral and one combined femoral and sciatic, were due to damage by the reamer in one case, haemorrhage in two, whereas the cause was unknown in three patients. After conservative treatment and 1-5 years follow-up the recovery was classified as good in three, fair in one and poor in two patients.

Aged↗
PubMed1979

Chronic compartmental syndrome of the abductor pollicis longus and extensor pollicis brevis muscles: report of a case treated with fasciotomy.

A 32-year-old man with a chronic compartmental syndrome of the muscle bellies of the abductor pollicis longus and the extensor pollicis brevis muscles was successfully treated by fasciotomy of the muscle sheath. It is pointed out that this condition was primarily due to hypertrophy of the muscles combined with overuse edema. This condition should be differentiated from De Quervain's disease.

Adult↗
PubMed1978

Osteomyelitis after operative fracture treatment. A report of 62 cases treated with radical surgery and lincomycin (Lincocin).

During the years 1967--1975 a total of 62 patients were treated for postoperative osteomyelitis. The lower extremities had been fractured in 89 per cent of the cases and 54 per cent were closed injuries. The fractures, mostly caused by traffic accidents and falls, had been immobilized by plates in 30 and by intramedullary nails or pins in 25 patients. Staphylococcus aureus was cultured in 80 per cent, 68 per cent of them were resistant to penicillin, but in 84 per cent the organisms were highly lincomycin sensitive and only three patients with four osteomyelitic lesions presented lincomycin resistance. The treatment consisted chiefly of sequestrectomies and saucerizations supported by 3--12 months of lincomycin treatment. In 30 operations a closed irrigation-suction technique was used, perfusing the wound with lincomycin solution. Stable implants should be left in place until the fracture is clinically solid whereas unstable osteosyntheses should be replaced by rigid internal or extraskeletal fixation. At follow-up, the results were judged as good in 74 per cent, fair 8 per cent and poor 18 per cent. The amputation rate was 13 per cent. Plates should not be used in the treatment of comminuted tibial fractures with considerable soft tissue damage.

Adult↗
PubMed1977

[Portal blood flow in minipig and its change by nicotinic acid (author's transl)].

The chronic double catheterisation of portal vein permits estimation of portal flow by dye dilution for example, the withdrawal of blood from the mesenteric vein and proximal portal vein, the injection of drugs into the portal circulation and measurement of portal pressure simultaneously. Beside the well known diminution of portal flow by vasopressin, which is extreme in anaesthetised minipig, there could be shown a remarkable diminution by high intravenous doses of nicotinic acid too without significant changes of systemic blood pressure and heart rat. Nicotinic acid causes also a diminution of pH in portal and venous blood.

Animals↗
PubMed1977

Unilateral and bilateral partial laminectomy in lumbar disc prolapse. A follow-up study of 156 patients.

The results of two comparable groups of in all 156 operated patients with lumbar disc prolapse were evaluated 4-9 years postoperatively. Sixty-seven patients had received bilateral and 89 unilateral partial laminectomy. At follow-up, the results of the bilaterally operated were all excellent or good, whereas 15% with unilateral exposure were unchanged or worse. The unilaterally operated presented a significantly higher incidence of low back pain and recurrences of sciatica than the bilaterally operated. There were no reoperations for recurrent prolapses following the bilateral approach compared with four after unilateral approach. It is concluded that bilateral partial laminectomy affords a good view of the disc pathology and a greater possibility for obtaining relief of the symptoms without reducing the stability of the column.

Adult↗