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Biomedical subjects

M Hansis

Publications and source records attributed to M Hansis.

17 recordsLinked to original sources
PubMed1992

[Smith's fracture. A radiological and functional follow-up study of 62 primary and post-primary surgically treated fractures].

The reversed Barton fracture of the distal radius is rare. In the literature there is a rate of 3 to 20.5% of all distal radius fractures. Whereas the reposition is simple, the reduction is difficult. This retrospective report about the treatment by osteosynthesis in the years between 1977 to 1987 in the "Berufsgenossenschaftliche Unfallklinik" Tübingen demonstrates a direct correlation between radiological and functional results. That means in consequence that internal fixation by using a small palmar T-plate is the favorable therapy.

Adult↗
PubMed1989

Molecular epidemiology of Pseudomonas aeruginosa--urinary tract infections in paraplegic patients.

84 Pseudomonas aeruginosa strains from 29 paraplegic patients with urinary tract infections (UTI) and from the water reservoirs of specialized wards in two German hospitals were typed using a P. aeruginosa-specific DNA probe. P. aeruginosa strains were present in 51% of all accessible water reservoirs, including sinks of wash-basins and toilets in the wards. 14 of the 29 patients with UTI (48%) were infected by P. aeruginosa strains which were also isolated from these sources. Groups of up to four patients were infected by single strains. Some of the strains persisted in the wards and were isolated from the water reservoirs five to eight months after causing UTI. 89.5% of the investigated water samples yielded P. aeruginosa strains which were identical with strains from up to nine other sites. The wide distribution of single P. aeruginosa genotypes in the ward, the isolation of strains causing UTI from rooms inaccessible to the patients, and the outbreak of UTI caused by single, identical P. aeruginosa strains in groups of patients within short time periods, suggest that the strains are distributed by the personnel rather than by the patients who for the most part are immobile.

Cross Infection↗
PubMed1989

[Surgical treatment of aseptic forearm shaft pseudarthrosis].

Non union of a lower arm fracture (without infection) is the result of inadequate immobilization or of too extensive devastation of the bone. Within 1975 to 1985 in the accident-hospital of Tübingen we saw 131 pseudarthroses of the ulnar or radius shaft in 111 patients. Among these a hypertrophic pseudarthrosis is mostly seen after conservative treatment or operative treatment with intramedullary nailing. Atrophic pseudarthroses or defect pseudarthroses mostly occur after open fractures, comminuted fractures or insufficient plate osteosynthesis. The operative treatment was regularly a plating of radius and/or ulna (mostly with the 3.5 mm AO-DC-plate) combined with correction of axis or rotation deformity. Depending on the type of the pseudarthrosis, decortication was also performed as well as an autogenous bone-grafting or an interposition of a cortical-cancellous-block. All but one of the pseudarthroses each of the ulna and radius, healed completely. Most patients had a reduction of pain, improvement of mobility of the elbow or wrist joint, especially an improvement of supination/pronation, regarded as an index of correction of a malrotation. Postoperative physiotherapy has to be most careful; the best physiotherapy is the everyday active use of the arm by the patient himself.

Adult↗
PubMed1988

[The infected hip joint].

The deep infection of a hip joint (after operative treatment of a fracture, after corrective osteotomy or as a haemtogeneous joint infection) is a severe, locally and systemically dangerous sickness; her treatment ist difficult because of the multifactorial genesis. In the accident hospital of Tübingen were treated 35 empyemas of hip joint (excluding after implantation of a prosthesis) within 10 years. The therapeutic management normally needs three steps: 1. Control of acute empyema or septicaemia (Debridement, Drainage, antibiotic treatment) 2. Achievement of fracture or osteotomy stability (by changing of osteosynthesis or bone-grafting under continuous drainage) 3. Definitive healing by removing of metal, resection of a destroyed or necrotic femoral head, by arthrodesis of the joint or--in special cases--by implantation of a prosthesis. In this way it was possible to control all of the 35 deep hip joint infections and to maintain function in 28 cases. Within the follow up (in the average 4 years) all the patients were free of infection.

Anti-Bacterial Agents↗
PubMed1988

[Antibiotic treatment in accident surgery. A status determination].

Systemic antibiotic therapy in traumatology should be able to prevent contamination of the aseptic operation situs with pathogenic germs (as prophylaxis); or it should be able to reduce the bacterial flora in and around an infectious focus during and after operation. An adequate circulation in the bone and the soft tissue coverage is necessary for proper concentration of the antibiotics. --The commonly accepted indications for antibiotic treatment are listed and critically reviewed. Without a continuous germ control of the hospital flora no calculated antibiotic therapy is possible.

Anti-Bacterial Agents↗
PubMed1988

[Therapy of joint infections].

The therapy of septic arthritis should lead to control of infection and a good joint function as well. So it is necessary to combine the classic methods (revision, immobilisation, antibiotic therapy) with functional treatment. The possibilities, aims and limits of early CPM or replacement of an infected prosthesis (in one or two steps) are discussed.

Anti-Bacterial Agents↗
PubMed1987

[Bore wire osteosynthesis in distal radius fractures].

In the presence of an area of extensive dorsal comminution percutaneous pinning is indicated in a typical distal radius fracture (Colles). It enlarges the stability and thus helps avoiding a secondary dislocation of the fracture. Indication and technique of this procedure are discussed following a series of 66 patients. Typical mistakes are as follows: insufficient reduction, poor diverging of the K-wires and improper anchoring in the opposite cortex. Avoiding of these possible faults leads to good final results. Flexion fractures and extensive shattering of the bone are contraindications for percutaneous pinning of these fractures.

Bone Wires↗
PubMed1986

[Treatment tactics in fractures of the midfoot].

Metatarsal fractures can occur as isolated lesions in combination with injuries of the ipsilateral tarsus, or in chain injuries of the lower extremity, or within a polytrauma. The choice of surgical or conservative therapy depends significantly on localisation and dislocation of the fracture (especially the involvement of the metatarsus I or V), as well as on the extent of the primary or expected soft part damage. From 1974 to 1984, 137 patients with metatarsal fractures were treated as in patients at the Accident Hospital in Tübingen. Three groups of diseases indicated for surgery are evident from an analysis of the courses of the disease: Metatarsal fractures in combination with an ipsilateral tarsus fracture or tarsus dislocation. Metatarsal serial fracture especially in involvement of metatarsus I and/or V. Dislocated tear fracture of the base of the fifth metatarsal bone. Preference is given to percutaneous Kirschner wiring from the head of the injured metatarsal bone. The tear fracture of the base of the metatarsal bone V is treated via traction bandage. These methods are generally technically simple and enable early functional treatment and partial weight-bearing. In particular, immediate surgical treatment may not only favour reposition and retention, but may also limit damage of the soft parts.

Bone Plates↗
PubMed1975

Cardiac hypertrophy due to physical exercise--an example of hypertrophy without decrease of contractility: unreliability of conventional estimation of contractility by simple parameters.

In 100 young, male Sprague-Dawley rats, a long term swimming training (2 hr/day for 8-12 weeks) produced an increase in heart weight of 10 percent, and an increase of about 15 percent in the relation of heart weight to body weight compared with control rats of the same age and initial weight. In examinations of the mechanical properties of the whole ventricle as well as of trabecular preparations, there was no evidence of impaired myocardial contractile ability because of the swimming training. Some parameters for the estimation of "contractility" increased, whereas others decreased. At a muscle length near lmax, the developed force and the maximal rate of force development were slightly augmented. The results reveal the limited value of some indices of contractility. Alterations in the shape of the contraction curve must to be considered adequately in order to avoid misinterpretations.

Animals↗