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Biomedical subjects

W Knopp

Publications and source records attributed to W Knopp.

At least 19 recordsLinked to original sources
PubMed1992

[Arthroscopy of the wrist and elbow joint].

Arthroscopy of the wrist and elbow is a helpful diagnostic procedure in patients with chronic disability not demonstrated by clinical and radiological examinations. At the wrist, especially triangular fibrocartilage, chondral or ligamentous defects can often not be demonstrated by other tests. Arthroscopy of the wrist allows examination of more than a dozen separate articular surfaces and the function of eight discrete joints. The geometry of the elbow joint limits intra-articular inspection and the use of instruments. The risk of neurovascular injuries is great and depends on exact puncture sites and portals. Its efficiacy is not yet proven.

Adult↗
PubMed1992

[Complications after surgical management of scaphoid pseudarthroses].

The Matti-Russe technique yields a 95% success rate in treating scaphoid non-unions diagnosed in the first years after trauma and without osteoarthrosis of the radiocarpal joint. Between October 1981 and December 1989, 215 patients were treated by Matti-Russe procedure at the University Hospital of "Bergmannsheil" Bochum. In ten cases, this operation did not lead to osseous consolidation. The results are presented and discussed.

Bone Transplantation↗
PubMed1991

[Primacy of soft tissue reconstruction in complicated tibial fracture--a new concept].

A total of 158 tibial shaft fractures with soft tissue injuries were treated from 1986 to 1990. In cases with type III open fractures, early reconstructive procedures with local or free flaps were carried out after radical debridement. After 12 months 95% of these fractures had healed. Postoperative infection occurred only in 4 (2.5%) of these 158 tibial shaft fractures with soft tissue damage. Before 1986, without these principles, the infection rate of type III open fractures was 17%.

Fracture Fixation↗
PubMed1989

["Prognostic" analysis of late results of trochanteric femoral osteotomy following post-traumatic malalignment].

Post-traumatic axial malalignment of the lower limbs causes osteoarthrosis of the adjacent joints. Whether or not correction osteotomy is indicated depends upon the degree and the location of the deformity. Malalignment of the proximal femur should be corrected if the axis of the leg does not pass through the knee joint. If the axis is outside the central half of the tibial head, the indication for correction osteotomy is a relative one: varus deformities are more difficult to compensate and it is more urgent that these be corrected. Of 103 patients who underwent osteotomies of the proximal femur during the period 1973-1981, there were 73 in whom it was possible to follow up an average of 7 years after the realignment procedure. In nearly two-thirds of these patients the clinical symptoms noted before surgery had improved. In 10 cases of pseudarthrosis of the femoral neck, necrosis of the femoral head could not be avoided in spite of the surgical correction; nonetheless, the prognosis is better if the correction is done within the first 3 months after the trauma.

Adult↗
PubMed1989

[Dislocation and subluxation of the patella].

Subluxations or dislocations are present in adolescents and young adults, they are caused by malalignments of the leg (rotation, axis, extensor mechanism). In subluxation, functional therapy is the method of choice, dislocations with haemarthrosis are an indication for arthroscopy. After the first dislocation without chondral lesion, consequent functional treatment has a recurrence rate of only 5 per cent. Recurrent dislocations need a reconstruction of the extensor mechanism to prevent chondral damage.

Adolescent↗
PubMed1989

[Postoperative classification of traumatic soft tissue damage as an aid to treatment. A simple system exemplified by the lower leg].

The prognosis of fracture healing depends upon the severity of injury sustained to the soft tissues and the blood supply left to the bone. The soft tissue injury cannot be precisely graded until after the fracture has been stabilized and radical debridement performed. Subsequent steps in the therapeutic strategy of compound fractures are determined mainly by the type and severity of soft tissue injury. Therefore fractures with soft tissue lesions need to be classified again after bone fixation and wound revision. Later treatment steps for restoration of the soft tissues are easily derived from the classification.

Abbreviated Injury Scale↗
PubMed1988

Early recognition of postoperative hematoma formation.

Postoperative hematoma formation must be treated as a potential infection. One fourth of all postoperative hematomas are already contaminated. Ultrasonographical examination is an effective method for early recognition of such postoperative hematomas. Ultrasonic diagnosis on a routine basis is not necessary, but it should be carried out as soon as clinical symptoms appear. Our postoperative late results with only one early and one late infection after 100 postoperative treatments of the hip joint and femoral shaft emphasize the importance of early diagnosis of hematomas.

Femur↗
PubMed1987

[Soft tissue covers in chronic osteitis].

The treatment of chronic post-traumatic osteomyelitis with soft tissue damage requires debridement followed by plastic surgical soft tissue replacement. 47 patients were treated between the period of 1983 through to 1985 with a combination of extensive sequestrectomy followed by flap cover. In 15 cases a free muscle flap (M. latissimus dorsi) and in 32 cases a pedicled muscle flap (M. gastrocnemius, M. soleus) were employed. A successful outcome was achieved in 40 of the 47 patients.

Chronic Disease↗
PubMed1987

[Arthroscopic diagnosis of the wrist joint].

Arthroscopy of the wrist is a helpful diagnostic procedure. The technique of the arthroscopy of the wrist is described. Initial experience in 22 diagnostic arthroscopies of the wrist is recounted. In six cases operative procedures followed the diagnostic arthroscopy.

Arthroscopy↗