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Biomedical subjects

M Börner

Publications and source records attributed to M Börner.

At least 37 records · Page 2Linked to original sources

Interlocking nailing of complex fractures of the femur and tibia.

The interlocking nail widens the range of indications for medullary osteosynthesis of femoral and tibial shaft fractures. Stability is achieved by transverse threaded bolts in prefabricated holes in the nail, which anchor the implant directly to cortical bone, thereby controlling length, alignment, and rotation of the limb. Two hundred eighty-three femoral and 401 tibial fractures were treated with an interlocking nail and followed for an average of 20 months. Overall, 97% of the femurs and 94.3% of the tibias were judged to have an excellent or good result, based on both clinical and radiographic parameters. Delayed union or nonunion requiring bone grafts occurred in 2% of the femurs and 0.7% of the tibias following interlocking nailing. Deep infection developed in 2.4% of the femurs and 2.2% of the tibias. All of these patients eventually healed their fractures without evidence of chronic osteomyelitis. The main advantage of interlocking nails is that surgery can be performed using closed nailing techniques, allowing early protected weight-bearing and joint motion. The rates of nonunion and infection are very low, and there is little risk of refracture after implant removal.

Bone Nails↗

[Indications for the surgical and conservative treatment of juvenile supracondylar humeral fractures and their results].

In the period from 1977 to 1982 78 children were treated for supracondylar fractures of the humerus at the Berufsgenossenschaftliche Unfallklinik Frankfurt/Main. Indications and methods for operative and conservative treatment are described. The results of therapy were reviewed by means of a questionnaire or reexamination in 68 patients with regard to function, elbow deformity and nerve lesions. Fractures of a grade I severity are to be treated conservatively by immobilisation in a POP-cast. Only in exceptional cases of grade II severity can a closed reduction be recommended. All remaining types of fractures of grade II and III severity should primarily be treated by open operations within 8 hours of the accident. Under these conditions the risk of infection is no higher than with percutaneous Kirschner-wire-osteosynthesis. Complications such as appreciable varus deformity, poor function and nerve lesions can largely be avoided in this way. The so-called extension-treatment offers no advantages in comparison with operative treatment.

Adolescent↗

[Experimental principles and clinical experiences in the use of allogeneic spongiosa].

Although the biological activity of autologous spongiosa is undisputed, considerable treatment problems can arise when filling up major bone defects, in aseptic pseudarthroses or in pathological fractures. Remaining defects or instabilities which do not allow us to expect osseous bridging-over prompted us to use deep-frozen allogenic spongiosa because of the restricted availability (if at all) of autologous spongiosa. Experimental studies employing Alsatian mongrels using the tracer microsphere method resulted in good blood supply and hence bone healing with good positioning of the graft and compresses spongiosa. The experimental results confirm the clinical experiences with simultaneous stable osteosynthesis.

Animals↗

[Operative reduction of comminuted fractures of the heel-bone and its results].

Severe comminuted fractures of the heel-bone involving the joint, which have to be classified according to Böhler into group V-VIII, are treated by a modified form of the so-called raising operation of Palmer. 27 patients (= 14,3%) had bilateral heel-bone fractures. The posterior subtalar supporting plate is raised under image-amplifier control, the defect cavity is filled with spongiosa, and the result of reposition is fixed with Kirschner wires laid under the skin. Functional treatment may begin a few days later; loading is generally possible after ten to twelve weeks, when the metal parts have been removed and the fracture has consolidated. Sixteen patients (= 8,5%) do not need orthopedic instruments, 132 patients (= 69,9%) are provided with arch-supports, and 41 (= 69,9%) with orthopedic footwear.

Adult↗

[Classification, treatment and results of fractures of the tibial pilon].

Considering the rate of complications and the remaining disability occurring after compression fractures of the distal end of the tibia - the so-called pilon fracture -, this type of fracture is one of the most serious injuries of the lower extremity. Such fractures of the distal end of the tibia can be caused by compressions as well as by direct of indirect traumatic violence, e.g. shearing, bending, or torsion effects. Of 102 patients with pilon fractures, 63 (= 61.8%) suffered this fracture by falling from a great height. When classifying our cases with fracture of the distal end of the tibia, and the diagnosed accompanying injuries, we found a dependence between expected consequences of the lesion and the seriousness of the accident before surgery already. During the treatment of patients suffering from pilon fractures, complications arose in 0% of group I, in 16.1% of group II, and in 27.6% of group III. With respect to the existing possibilities of surgical treatment of fractures, one should always - if possible - reconstruct the joint surfaces in an anatomically correct manner and apply an early functional treatment with late exertion of stress on the injured part.

Adult↗

[Technic and diagnostic value of so-called stress x-rays in injuries of the fibular ligaments (author's transl)].

To allow a definite diagnosis in cases of rupture of the fibular ligaments of the ankle-joint, stress-x-rays of the upper ankle joint were taken in ap. and lateral view. The intraoperative findings in 150 patients with rupture of the fibular capsule/ligament were compared with the preoperative x-rays. The results justify the conclusion that stress-x-rays in ap.-view are sufficient. Additional information can be obtained about the different components of the capsule and the ligament.

Ankle Injuries↗

[The fall of Icarus or the seriously injured young motorcyclist (author's transl)].

During 1979 70 motorcyclists were treated in the Department of Traumatology of the "Berufsgenossenschaftliche Unfallklinik" Frankfurt/Main. The psychological reasons of the motorcycle-boom and the consequences are compared. The psychic status of these young motorcyclists was different from that of other patients. An analysis of the data showed that in 24.3% the accident occurred on the way to work or to school; 75.7% of the accidents happened during a pleasure-trip. 58.6% of the motorcyclists suffered injuries with permanent sequels. The different types of permanent damage are described. Based on two case reports the arising costs are analysed.

Accidents, Traffic↗