Osseous hydatidosis is a rare occurrence of hydatid disease. Anatomoclinical changes are, however, peculiar to this localization. From the anatomopathologic standpoint, this localization marks the torpid, insidious progression of the parasite into bone tissue, leading to an immediate diffuse, extensive, invasion process, so complete surgical eradication is rarely possible. From the clinical standpoint, whatever the localization may be, we are surprised by the latency of this affection, the patient being treated at an advanced stage, when radiologic lesions are already extensive, and the complications, especially in the spinal area, are severe. Owing to the poor biologic findings, the diagnosis of osseous hydatidosis is still primarily based on roentgenographic findings. Sometimes, however, the diagnosis is established only after surgery. Treatment of osseous hydatidosis is closer to oncologic therapy than to the usual surgical treatment of visceral hydatid cysts. Because of the poor results with medical treatment, osseous hydatidosis must be treated by a radical operation with wide excision, adapted to each localization. In the main, the prognosis of osseous hydatidosis remains poor, especially with spinal and pelvic localizations, which are the most frequent ones. The prognosis and treatment of osseous hydatidosis belong in the same category as a locally malignant lesion.
We report the management of two children and 1 1 adults with paraplegia secondary to vertebral hydatidosis. Destruction of pedicles, posterior vertebral elements and discs as well as the vertebral bodies was common and all six patients with thoracic disease had involvement of adjacent ribs. The 13 patients had a total of 42 major surgical procedures; two patients died from postoperative complications and four from complications of the disease and paraplegia. All eight patients initially freated by laminectomy or anterior decompression alone relapsed within two years and seven required further surgery. Circumferential decompression and grafting gave the best results, six of nine patients being in remission an average of three years and six months later. The prognosis for such patients is poor; remission is the aim, rather than cure. Anthelminthic drugs may improve the prognosis, but radical surgery is likely to remain the keystone of treatment in the foreseeable future. The incidence of human infestation with Echinococcus granulosus is increasing, and the parasite is appearing in areas of the world previously free of it (Williams, Lopez, Adaros and Trejos 1971 ; Matossian, Rickard and Smyth 1977). We report the treatment and results of 13 patients with paraplegia due to vertebral hydatidosis.
This paper presents a short study of 17 cases of tuberculosis of the greater trochanter seen during a period of 19 years at the National Orthopaedic Institute in Tunis. The onset of the infection is slow with patients presenting at a mean of 7 years after initial symptoms. The diagnosis is confirmed by biopsy and culture of the organism. Management is based on treatment with antituberculous drugs, although surgical excision of the lesion is sometimes required. Successful resolution of the symptoms is usually achieved unless the hip joint becomes involved. Our patients showed good results at a mean follow up of 5 1/2 years.
TREATMENT AND RESULTS IN TWENTY-ONE CHILDREN to 14 centimetres, with an average of4 centimetres. The tibial remnants were often mere bony spicules, too long, thin and fragile to be useful in reconstructive surgery.
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