Treatment of cervical disc disease using Cloward's technique

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Abstract
During the period from April, 1965, to October, 1979, 1,106 patients with symptoms or signs of cervical disc disease were operated on using Cloward's technique. 94% of the patients alive filled in a questionnaire forwarded on October, 1980. The study revealed that 81% experienced an immediate effect of the operation, and 63% were in a better condition than preoperatively at the time of the questionnaire. It appeared that the effect of the operation 1 year postoperatively was independent of age and observation time, but the functional result and postoperative working capacity were very significantly better in young patients, but still independent of observation time. The result was independent of the number of primarily inserted grafts, cutting of the posterior spinal ligament or the finding of a free herniated disc. Use of calfbone grafts resulted in more reoperations. Primary complications were registered in 13% of the patients, reduced to 5% after 3 months. 3 patients developed a severe tetraplegia, and 6 patients died within 3 months of the operation.