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Biomedical subjects

H Molander

Publications and source records attributed to H Molander.

8 recordsLinked to original sources
PubMed1986

Ankle fractures treated with non-rigid internal fixation.

Two hundred and thirty-seven fractures of the ankle treated with non-rigid internal fixation were reviewed with regard to classification, congruency of joint surface, range of motion and the patients' subjective symptoms. The fractures were divided into either severe fractures consisting of two or more skeletal injuries or simple fractures consisting of only one skeletal injury. Successful operation, i.e. congruency of the joint, was seen in 50 per cent of the severe and in 73 per cent of the simple fractures (significant, P less than 0.001). Disability was significantly more frequent after severe fractures and with incongruent joints. This study shows that the operative technique using non-rigid internal fixation is not sufficient for treating severe fractures, as exact anatomical reconstruction of the joint was not obtained.

Adolescent↗
PubMed1986

Bi- and trimalleolar ankle fractures operated with nonrigid internal fixation.

The results of bi- and trimalleolar fractures treated with nonrigid internal fixation were analyzed in 134 patients. The fractures were of both pronation and supination type. The operative success was evaluated in terms of congruency as seen on the post-operative radiographs. The congruency was classified as either congruent, small, or grave displacement respectively. At follow-up evaluation, four variables were recorded: a linear analogue scale, an ankle score, range of motion, and presence of osteoarthritis. Fifty percent had congruent joints, 20% had small, and 30% had grave displacements. At follow-up examination those with congruent joints had significantly better function than those with displacements in all four variables. There were only minor differences between the two displacement groups. The nonrigid technique seems inadequate in retaining congruency of the unstable bi- and trimalleolar fractures. Congruency is the key to good prognosis. Even minor displacement significantly increases the risk of impending disability.

Adolescent↗
PubMed1984

A scoring scale for symptom evaluation after ankle fracture.

A scoring system for evaluating symptoms after ankle fractures is presented. It is tested against (1) a linear analogue scale; (2) the limitation in range of motion in loaded dorsal extension; (3) the presence of osteoarthritis; and (4) the presence of dislocations on radiographs. It correlates well with these four parameters, which are considered to summarize the results after this type of injury, and is therefore considered to assess the symptoms in an objective way. The scoring system is recommended for scientific investigations, as even minor subjective differences in disability experienced by the patient are significantly separated. The use of this system will simplify the comparison of results presented by different authors.

Ankle↗
PubMed1984

Atypical pronation-eversion ankle joint fractures.

Two cases of pronation-eversion fractures, grade four, are described which were sustained during sports activities. However, in both cases the medial structures of the joint were intact. The trauma mechanism is obscure but may be explained by considering the ankle joint and the subtalar joints as a torsion transmitter as suggested by Inman (1976).

Adult↗
PubMed1983

Nerve repair using a polyglactin tube and nerve graft: an experimental study in the rabbit.

Defects in a sectioned tibial nerve were bridged by a new method using a polyglactin mesh-tube and compared with conventional nerve grafting in the rabbit. The capability of healing was evaluated by morphometrical observations and repeated EMG-recordings. Only minor differences between the two different techniques were observed and the possible advantage of the polyglactin method is discussed.

Animals↗
PubMed1982

Regeneration of peripheral nerve through a polyglactin tube.

Polyglactin 910, a resorbable synthetic material, was used as a mesh-tube to bridge defects (7 to 9 mm in length) in a sectioned rabbit tibial nerve. After absorption of the mesh a new nerve sheath was formed which enclosed numerous minute fascicles of regenerating axons. The polyglactin tube influenced the direction taken by the regenerating axons and guided them into the distal segment. The tube also reduced the formation of neuromas and the growth of scar tissue from surrounding structures.

Animals↗