[Treatment of acetabular fractures].

T Pribyl, V Vyskocil, Z Chudácek

Acta Chir Orthop Traumatol Cech. 1993; 60(5):259-269

The authors present an account of 85 patients with fractures of the acetabulum treated at the Orthopaedic Clinic, Faculty Hospital Plzen in 1985-1991. The fractures are classified according to Lettournel-Judet. The authors investigated associated injuries which prolong the interval between injury and operation as well as the correlation between the mechanism of injury and the patient's age and the incidence of injuries in different months of the year. For indication for operation the quality of reposition evaluated by computed tomography is essential. The authors analyze the length of the interval between injury and operation, administration of antibiotics...

[A sandwich-type hip joint socket with a ceramic lining].

O Cech, V Sída

Acta Chir Orthop Traumatol Cech. 1993; 60(5):270-272

The authors present a new type of sandwich socket with ceramic lining. Mechanical tests provide evidence that the submitted implant is very firm. It is a basic prototype from which cemented and non-cemented sockets of the hip joint will be derived. The authors use a 28 mm socket paired with a 28 mm head and 12/14 conus and 14/16 Euroconus. This means that the submitted socket is compatible with all types of cemented and non-cemented endoprostheses.

Wave plate osteosynthesis as a salvage procedure.

G Blatter, B G Weber

Acta Chir Orthop Traumatol Cech. 1993; 60(5):273-277

The load axis of the curved-shaped proximal femur lies not inside, but outside the bone. Therefore high bending forces are acting, the medial cortex absorbing pressure, the lateral cortex absorbing tension. In a transverse fracture, a laterally applied plate will absorb the tensile stresses, the medial cortex the pressure forces. When medial butress due to bony defect is missing, the laterally applied plate is subjected to cycling bending and will undergo fatigue fracture. This dilemma is compensated by a wave-plate with bone graft: The compression forces are detoured to the lateral cortex and the plate is again subjected to tension. Furthermore since...

[Personal experience with non-cemented femoral components in the Schenker total hip prosthesis].

V Dzupa, O Cech, Z Klézl, M Krbec

Acta Chir Orthop Traumatol Cech. 1993; 60(5):278-283

Based on seven-year experience with non-cemented femoral components of total endoprostheses of the hip joint, type Schenker, the authors assume that their use is limited only to a small group of patients under 40 years of age, provided strict principles as regards precision of implantation are respected. The latter are discussed in the submitted paper.

[Experience with non-cemented stems in Schenker hip prosthesis].

V Stědrý, M Slavík

Acta Chir Orthop Traumatol Cech. 1993; 60(5):284-286

In 1986-1988 at the Orthopaedic clinic of the Institute for Postgraduate Medical Training 56 stems on non-cemented total endoprostheses of the hip joint type Schenker were implanted. The non-cemented stem was combined in all patients with a cemented socket Poldi. The endoprosthesis was indicated in particular in young patients in 59% in hip joints affected with secondary postdysplastic arthritis of the hip joint. The group was checked by Harris' method, the mean follow-up period in 1992 was 58 months. Of 36 followed up patients 21 operated patients reported pain in the area of the hip joint, 10 patients used analgetics. In nine patients reimplantation...

[Our method of arthrodesis of the wrist].

J Pech, A Sosna

Acta Chir Orthop Traumatol Cech. 1993; 60(5):287-295

The authors emphasize the importance of a stable pain-free carpus for the function of fingers. Reflections on their own type of osteosynthesis are based on anatomical and biomechanical findings. They emphasize the functional concept of the central pillar of the wrist where maximum flexion and extension takes place. In this very line formed by the distal portion of the radius, os lunatum, os capitatum and the base of the third metacarpal bone they apply the splint. The splint is as compared with classical AO splints low (only 2.8 mm), L-shaped and in its cross section slightly convex dorsally. It follows thus the natural arching of the carpal and metacarpal...

[Diagnostic and therapeutic arthroscopy of the elbow joint].

M Weissinger, M Chochole

Acta Chir Orthop Traumatol Cech. 1993; 60(5):296-300

The anatomical structure of the elbow joint makes arthroscopy markedly more difficult, as compared with the knee joint or shoulder. This is confirmed also by the small number of hithero published work. The limitation of inspection of the elbow joint ensues from the firm articular capsule and restricted intraarticular space. This leads to difficult manipulation of optical and other instruments in the limited visual field. The position of neurovascular structures in the vicinity of the surgical approach increases the demands of surgical technique.

[Importance of tenotomy of the adductors in the treatment of cerebral palsy manifestations in the lower extremities].

V Smetana, A Schejbalová

Acta Chir Orthop Traumatol Cech. 1993; 60(5):301-305

The authors evaluate 303 tenotomies of adductors performed in patients with cerebral palsy (CP) in 1970-1992. They emphasize the correct diagnosis of adduction contracture of the hip joint and correct treatment, incl. early surgery, not only because of the influence of adductors on standing and gait but also on the development of the hip joint in children. The authors draw attention to the increased incidence of subluxations and luxations of the hip joint in recent years in children with CP who were not operated or where the muscular balance and contractures of the hip joint were not modified. They emphasize the fact that in children where tenotomy...

[The importance of age in patients for the subsequent state of the growth cartilage lengthened by distraction epiphysiolysis].

M Janovec, J Jochymek

Acta Chir Orthop Traumatol Cech. 1993; 60(5):306-310

The authors evaluated the state and behaviour of 18 growth cartilages in 16 patients lengthened by the method of distraction epiphysiolysis in 1974 to 1991 at the Clinic of Child Orthopaedics in Brno. Lengthening was performed in 8 boys and 8 girls in the area of the distal femur and/or proximal or distal tibia. The follow-up period of these patients was 2 to 8 years. The authors revealed that the bone age of the patient had a decisive effect on the state and behaviour of the lengthened epiphyseal growth plate. The mode and rate of release of the growth zone was the same, similarly as the rate of lengthening; despite this the patients could be divided...

[Causes of corrosive mechanical defects in isoelastic endoprostheses].

P Novák, L Joska, V Stědrý, J Hron

Acta Chir Orthop Traumatol Cech. 1993; 60(5):311-314

Within the framework of evaluation of endoprostheses of the hip joint reoperated at the orthopaedic clinic of the Institute for Postgraduate Medical Training, Faculty Hospital Na Bulovce in Prague in the course of six years the authors made a more detailed analysis of the group of isoelastic POLDI endoprostheses which displayed obvious signs of corrosion. The specimens from this group were subjected to evaluation focused on corrosion, metallographic and fractographic evaluation. In impaired wires of isoelastic endoprostheses the fracture surfaces have a fatigue character where a corrosion fatigue mechanism may be assumed as well fracture with a dominant...

[The founder of modern trauma surgery, Prof. Lorenz Böhler (1885-1973)].

J Kroupa

Acta Chir Orthop Traumatol Cech. 1993; 60(5):316-319

[Discussion of the article by K. Urban, J. Stehlík: Initial clinical experience with bioactive BAS-O glass-ceramic material].

J Palarcík

Acta Chir Orthop Traumatol Cech. 1993; 60(5):320