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Biomedical subjects

P Matter

Publications and source records attributed to P Matter.

At least 91 records · Page 5Linked to original sources
PubMed1983

Biomechanical analysis of the knee after rupture of the anterior cruciate ligament and its primary repair. An instant-centre analysis of function.

Sixty-five knees were subjected to a kinematic analysis using the instant-centre technique in order to determine the effect of deficiency of the anterior cruciate ligament on the biomechanics of active movement in the knee. The instant-centre pathway in acute ruptures of the anterior cruciate ligament was found to have a specific abnormality. This corresponded with a positive pivot-shift sign, but was present even when that sign was not clinically detectable. Primary repair using a transosseous wire suture did not usually abolish the biomechanical abnormality. The data provide a possible explanation for the doubtful prognosis of primary repair of this ligament and encourage clinical and biomechanical evaluation of alternative procedures such as primary augmented repair.

Adult↗
PubMed1982

[Risk and severity of alpine ski accidents and their social significance].

The alpine ski accidents have been studied for the last ten years in the Region of Davos-Klosters, Switzerland. Possibilities of prevention were analyzed. The accident risk has drastically decreased for immobilizing injuries of the lower extremities. Simultaneously, however, the pattern of injuries moved to the upper extremities. The accidents became, according to several criteria, less severe. Future preventive measures should be aimed primarily at reducing fall frequency and intensity.

Athletic Injuries↗
PubMed1980

[Recurrence frequency following traumatic shoulder dislocation].

99 cases of primary traumatic shoulder dislocation were evaluated in regard of the influence of the time of immobilization on recurrency. 3 weeks of strict immobilization gave a recurrency rate as low as 6.4% whereas a shorter immobilization resulted in 12% of recurrency within 1--6 years. A survey from 46 other clinics as well as the literature has given no evidence of clear rules of treatment and thus the discussion of treatment remains open.

Adult↗
PubMed1979

[Clinical considerations on posttraumatic osteitis].

Posttraumatic bone infection very often signifies a life threatening complication. However, it must no longer be accepted that amputation of the afflicted limb be the logical treatment of such a complication. A surgeon who offers the advantages of operative treatment of a fracture to his patient must also be able to control its complications. Osteitis can be treated with a good chance of success. In our clinic 29 bone infections were treated, 13 of them healing without substantial restrictions, 7 with distinct discomfort and 4 with arthrodesis, i.e. 83% healed. However, the treatment may require months and may necessitate further operative interventions. The transfer of such a patient from an acute care hospital to a high altitude clinic offers -- besides the medical and psychological advantage of a continuous long-term treatment plan -- the climatic conditions of sun and high altitude air which apparently act very favorably on the healing process of chronic infections. Of course, the possibility of competent surgical interventions must exist. Thus, with proper therapy the disastrous chain of errors beginning mainly with poor initial care through insufficient treatment can be broken.

Adolescent↗
PubMed1978

The comparison of steel and titanium dynamic compression plates used for internal fixation of 256 fractures of the tibia.

A consecutive series of 256 fractures of the shaft of the tibia treated by internal fixation with a narrow dynamic compression plate (DCP) is presented. In 123 cases the plates were made of titanium and in 133 cases they were made of stainless-steel. In both groups the age distribution of the patients, the period between operation and the final review and the time of removal of the metal were comparable. All these fractures resulted from skiing accidents. Eighty-six per cent of the 256 fractures were reviewed between 1 and 2 years after the operation. Ninety-one per cent of the titanium group and 93 per cent of the stainless-steel group showed full recovery without any loss of movement in the joints. In both groups there was the same number of refractures, which were chiefly due to subsequent accidents. There were no cases of local wound infection, osteitis or non-union. Furthermore, there was no difference to be seen between the radiological patterns of fracture healing in the two groups. In this series stainless-steel and titanium plates gave the same excellent results.

Adult↗