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Biomedical subjects

B G Weber

Publications and source records attributed to B G Weber.

At least 37 records · Page 2Linked to original sources
PubMed1984

The operative treatment of scapular fractures.

Fractures of the scapula occur mainly from direct trauma involving considerable violence and associated injuries of the shoulder and thorax are common. In most cases early functional treatment gives good or excellent results. Operative treatment may, however, be indicated, especially with displaced intra-articular fractures, fractures of the glenoid rim associated with humeral head subluxation, or unstable fractures of the scapular neck. Between 1967 and 1981, we treated 37 such fractures by open reduction and stable osteosynthesis. We were able to follow up 33 cases (89%), of which 21 (64%) had complete functional recovery. The other 12 had varying degrees of pain, loss of mobility, and weakness. Overall, however, 79% of the patients had good to excellent results.

Acromion↗
PubMed1984

Rotational humeral osteotomy for recurrent anterior dislocation of the shoulder associated with a large Hill-Sachs lesion.

Rotational subcapital osteotomy of the humerus for recurrent anterior dislocation of the shoulder associated with a large Hill-Sachs lesion was performed first by us in 1964 as a trial. From 1967 through 1981, 207 rotational humeral osteotomies were performed. Follow-up was possible on 180 of these shoulders. The over-all redislocation rate was 5.7 per cent and the rate of non-traumatic redislocation, 1.1 per cent. Limitation of motion of more than 10 degrees was present in only 3.9 per cent, the maximum limitation of external rotation being 15 degrees in one patient. The average loss of external rotation was less than 5 degrees, without noticeable diminution of power or function in most patients. The results as graded by a standard rating scale were good to excellent in 90 per cent, fair in 3 per cent, and poor in 7 per cent of the patients. The fair and poor results were due to redislocation, delayed union or non-union, post-traumatic arthritis, and over-rotation at the osteotomy site. Reoperation was necessary in two patients with a non-traumatic recurrence, in six patients with delayed union or non-union, and in one patient with excessive rotation at the osteotomy site. Plate removal was performed one to two years postoperatively in 107 of the 180 shoulders. Of the 321 recurrent dislocations seen over the fourteen-year period, 65 per cent were associated with a moderate to severe posterior-superior impression fracture of the humeral head (Hill-Sachs lesion).(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1983

[Osteosynthesis in the metastatic skeletal involvement of breast cancer. Subjective and objective advantages].

In a retrospective study 15 patients with pathological fractures in metastatic breast cancer were investigated. Wound healing was uneventful in 13 patients. All patients were able to walk again postoperatively and 11 were free from pain. All lasted through the operation in good shape. In no case was there a need for a secondary amputation. Two patients suffered from a fracture of the implant. The average survival time was 24 months from the time of operation, the maximum was 52, the minimum 7 months. The results show that surgery in pathological fractures of metastatic carcinoma of the breast is beneficial to the patients both subjectively and objectively. Despite the usually limited life-expectancy they are able to return to their usual surroundings free from pain and able to walk.

Bone Neoplasms↗
PubMed1981

Lengthening osteotomy of the fibula to correct a widened mortice of the ankle after fracture.

The subtle diagnosis of widening of the mortice requires special radiographs which also make possible the recognition and extent of shortening of the fibula. With the help of a special compression/distraction device, a lengthening osteotomy can be carried out more easily then by conventional means. a reconstructive lengthening osteotomy of the fibula in cases of widening of the mortice is well worth while when there is absent or minimal osteoarthritic change, irrespective of the time from the original injury.

Adult↗
PubMed1981

Diaphyseal fractures of both bones of the lower leg with associated injury of the ankle mortise.

Fractures of both bones of the lower leg may be accompanied by a disruption of the mortise with a shortening of the fibula. This combination was observed in four cases reported in this paper. The incidence of this injury may be higher if proper physical and radiological examinations are performed. Therefore, a thorough clinical and radiographic examination of the ankle joint is imperative, before and after reduction of the tibial fracture. Any shortening of the fibula should be corrected surgically, preferable at the time of injury. Malunion should be treated by corrective osteotomy.

Adolescent↗
PubMed1981

[Fractures of the ankle joint and the astragalus. New aspects in diagnosis and treatment (author's transl)].

Five separate problems are discussed: additional lesions of the ankle joint in lower-leg fractures; posterior plate fixation of short oblique distal fibula fracture; reversed lag-screw fixation of small avulsed fragment of the medial malleolus; reduction of smaller posterior tibia lip fragment through the lateral malleolus; primary tibiotalar fusion in the most severe astragalar fractures.

Ankle Injuries↗
PubMed1980

[Optimum utilization of the ventilation system to reduce airborne bacteria in operating rooms].

In 4 operating theatres with 4 different air-conditioning equipments, the number of bacteria per m3 circulating air in the neighbourhood of the open wound has been investigated. The testing has been performed on comparable aseptic operations. The worst results were obtained in 2 conventional theatres, equipped with a modern-up-to-date air-conditioning. The number of bacteria was ranging between 230 and 270 per m3. A much better results was obtained in a theatre, equipped with a so-called germ-stop-wall, dividing the theatre into 2 sections, separating the surgical team and the open wound completely from the anaesthesist and other staff. With this arrangement, 45 germs per m3 were found. The best result with no bacteria at all is present in a vertical flow-enclosure with an exchange rate of 32 per hour. According to our 10-year experience, for aseptic surgery sterile air techniques should be adopted to improve asepsis and to decrease the risk of postoperative infection.

Air Conditioning↗
PubMed1979

Improvements in total hip prosthesis implantation technique. A cement-proof seal for the lower medullary cavity and a dihedral self-stabilizing trochanteric osteotomy.

The anchorage of the femoral component of a total hip prosthesis can be improved by the following two refinements to the surgical technique: 1. The femoral medullary cavity is plugged with a bone core taken from the excised femoral head or with a polyethylene bung. The plug prevents the bone cement from being displaced distally into the lower part of the medullary cavity. It contains a small hole through which blood can escape, thus preventing the latter from accumulating in the upper part of the medullary cavity and impairing the bond between the cement and the bone wall of the cavity. 2. The greater trochanter is no longer sliced off with a single cut in one plane but is now removed by dihedral osteotomy, i.e., by making cuts in two planes which intersect each other so as to form a ridge. On compressing this osteotomy by tension band fixation all movement between the fragments is eliminated, including that in the parasagittal plane which results from flexion and extension of the hip. In this manner loosening and pseudarthrosis of the osteotomy are prevented.

Arthroplasty↗
PubMed1979

Special instruments and prosthetic cups for the removal and replacement of a total hip prosthesis.

In the course of replacing more than 500 total hip prostheses over a period of five years the authors have developed a new set of instruments for the removal of the defective prosthesis and cement and for improved anchorage of the new prosthetic cup. The set comprises: 1. A set of special chisels and an axially guided drill for removal of the old cement from the femur. These instruments greatly simplify the latter procedure. 2. A new type of prosthetic cup with a weight-bearing collar. This cup is used for cases in which the amount or structure of the acetabular bone is such that it will not support a conventional cup. 3. A new type of drill with a flexible drive and easily exchangeable drill bits for cutting anchorage holes in otherwise inaccessible parts of the acetabular bone.

Hip Joint↗