Browsing by Author "Vlok, G. J."

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    Dorsal ganglion of the wrist - pathogenesis and biomechanics : operative v. conservative treatment
    (Health & Medical Publishing Group, 1989) De Villiers, C. M.; Birnie, R. H.; Pretorius, L. K.; Vlok, G. J.
    It is shown that the dorsal ganglion arises as a herniation from the dorsal scapholunate ligament. This herniation increases in size (according to La Place's law) owing to the unidirectional pinchcock effect of the mucosal folds of the duct and the pressure of the overlying extensor retinaculum until the distending pressure inside the ganglion equals the overlying tissue pressure. Wrist gangliography, retrograde wrist arthrography, histology and nuclear magnetic resonance were used to prove this conclusively. Bearing the pathogenesis in mind, the best clinical results were obtained by excision of the ganglion with 0,5 cm2 of dorsal scapholunate ligament and closure of the dorsal capsule with a 3/0 Vicryl purse-string suture. Non-surgical sclerotherapy led to severe inflammation and sepsis and a recurrence rate of 45%. Conservative therapy is illogical since the communicating duct remains and synovial fluid from the scapholunate joint will cause a reherniation and recurrence of the ganglion.
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    Resultate van die Austin Moore-prostese in intrakapsulere femurnekfrakture in Tygerberg-Hospitaal : 'n retrospektiese ondersoek
    (Health & Medical Publishing Group, 1990) Van der Merwe, D. F.; De Klerk, A. J.; Vlok, G. J.
    A retrospective study was done on 116 patients who received an Austin Moore prosthesis at Tygerberg Hospital between 1982 and 1983. The patients all had displaced intracapsular femoral neck fractures (Garden type III or IV). Although the Moore prosthesis must be fitted meticulously for good results, the operation can be performed effectively by the less experienced surgeon. This cementless monoprosthesis is a good option for the elderly and/or poor-risk patient with a limited life expectancy. It has a low intraoperative mortality, a low percentage of re-operation and results in early and good mobilisation. In contrast to series on cemented prosthesis, we had a very low sepsis rate. In comparison to a total hip replacement, this is much cheaper prosthesis and operation.
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    Vertebral cysticercosis : a case report
    (Health & Medical Publishing Group, 1988) Vlok, G. J.; Wells, M. C.
    Cysticercosis is a well-known condition in man, affecting the brain and neuromuscular tissue. Bony involvement is very rare. Our patient presented with destruction of the 11th thoracic vertebra and paraplegia. The diagnosis was confirmed on histological examination and enzyme-linked immunosorbent assay.