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Biomedical subjects

H Mittelmeier

Publications and source records attributed to H Mittelmeier.

At least 73 records · Page 4Linked to original sources
PubMed1977

[Indications, technic and complications of intramedullary nailing in orthopedic view (author's transl)].

After short statement of the present indication and short illustrations of the technics of intramedullary nailing, 41 cases of failure (with the necessity of reoperation) are investigated with demonstrating the observed complications and their causes. Especially were seen malunions, shortening of legs, pseudarthrosis and osteomyelitis and some secondary anchylosis after fractures of metaphysis or comminuted fractures. These results were caused by use of nails with too small diameter and deficient reaming with following insufficient solidity.

Adult↗
PubMed1975

[Biomechanical investigations of osteosynthesis at metaphys area of tibia and femur with selftensed angle plates (author's transl)].

Straight pressure plates create an eccentric tension force as well as an osteosynthesis with angle pressure plates. Both kinds of plate incline to gape the osteosynthesis and/or fracture gap. Therefore an overbending or additional angle allowance is necessary. In our biomechanical investigations we showed that at average bone stability, an overbending of the angle respectively an additional angle allowance of 3 degrees is most favourable. Uniform distribution of power transmission can be achieved at the entire osteotomie level using large and small angle plates with appropriate plate thickness and plate tension force. Sufficient stability in mobilisation is guaranteed without additional cast fixation.

Biomechanical Phenomena↗
PubMed1975

[Internal compression arthrodesis of the ankle joint (with examination of stability for comparison].

A new technique of arthrodesis of the ankle joint by internal fixation with self-compression blade-plates is presented. The both possible techniques of inserting the plate lateraly or medialy are described. We prefer the lateral approach. After resection of the ankle joint we also resect the tibiofibular syndesmosis putting than in a transfixion screw. We than compare under biomechanical aspects the new techniques with Charnley's external fixation with compression clamps. The osteosynthesis with blade-plates gives a higher stability in which external splintage with plaster becomes unnecessary. Following our experiences consolidation occurs after 8 tp 12 weeks.

Ankle Joint↗
PubMed1975

[Soft tissue tumours on the back of the knee].

Soft tissue tumours behind the knee have rarely been described in literature. We have studied 74 patients with 79 tumours and pseudotumours in this area, and made a survey about pathology, clinical features, diagnosis, differentialdiagnosis and operative treatment. We have pointed out the varying nomenclature and confusion in definition ob a bursa and Baker's synovial herniation. The analysis of the casuistry showed predominantly gangliae, bursae and Baker's cysts. We have given special prominence to subfascial lipoma, malignant synovioma and nerve tumours as rare conditiones. Our own cases of synovioma and nerve tumours have been separately described.

Adolescent↗