In this retrospective study, 85 patients previously operated on for lumbar disc herniation who had undergone re-operation due to persistent pain or recurrence of the symptoms were investigated. The surgical findings were: recurrent herniation (20%), epidural fibrosis alone (36.4%), small recurrent herniation with epidural fibrosis (28.2%), herniation at another level (10.6%), spinal stenosis (2.4%), lumbar pseudomeningocele (1.2%) and adhesive arachnoiditis (1.2%). The overall success rate of re-operation was 60%. The best results were obtained in recurrent disc herniation (47.1%) excellent and 35.3% good results) and in herniation at another level (77.8% excellent and 22.2% good). Re-operation in epidural fibrosis had less-satisfactory results (29.1% excellent and 12.9% good).
A 10-year-old boy was admitted with a 4-month history of ataxic gait, headache, vomiting and diplopia. The headaches had worsened in month 4 and were associated with vomiting during head movement. Cranial computed tomography (CT) and magnetic resonance imaging (MRI) scans revealed a hydatid cyst located in the posterior fossa. The patient underwent suboccipital craniotomy and a cerebellar hydatid cyst (approximately 5 cm in diameter) was removed using Dowling's technique. The diagnosis was confirmed during surgery and by histological examination of a tissue sample from the cyst. The patient was treated with the antihelmintic agent albendazole in combination with antibiotics. The post-operative course was uneventful and the patient was discharged after 1 week. In conclusion, when a cystic lesion is detected on CT or MRI scans, hydatid disease should be taken into consideration in countries where hydatid infestation is endemic.
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