Long-term prospective study of XXXX .

@entity1 @entity158 @entity10145
A long-term prospective study of 100 @entity1 undergoing @entity10145 was carried out in an attempt to delineate the natural history of these @entity1 and to assess the relative significance of preoperative factors as determinants of long-term outcome. Neurological findings were documented preoperatively and at 1 month, 1 year, and 5 to 10 years postoperatively. A questionnaire using subjective and objective data was given to @entity1 at 1 year and 5 to 10 years postoperatively. An 83% long-term follow-up result was obtained. At a minimum of 5 years postoperatively, 62% of @entity1 had complete relief of back @entity158 and 62% had complete relief of leg @entity158 ; 96% were pleased that they had submitted to surgery and 93% were able to return to work. Nine percent reported that their back @entity158 at 5 to 10 years was as severe as or worse than preoperatively and 11% reported that their leg @entity158 was as severe as or worse than preoperatively. The reoperation rate was 18%. Preoperative factors found to be significantly associated with outcome at 1 year postoperatively were not significantly associated with outcome at 5 to 10 years postoperatively. The results of @entity10145 appear favorable as evaluated in this study. Preoperative factors useful as predictors of short-term outcome are much less reliable when considering the long-term results.
