Microdiscectomy for XXXX and frequency of failed disc surgery.

@entity1 @entity614 @entity890
BACKGROUND: Microdiscectomy for @entity890 is one of the most commonly performed neurosurgical procedures. The @entity1 demographics, symptomatology, and recovery are highly variable, and surgical outcomes depend on several factors, including @entity1 demographics. Failed disc surgery refers to failure of improvement in @entity1 's symptoms following microdiscectomy, and has been observed to occur in up to 12% of @entity1 . To date, no study form Pakistan has looked into @entity1 demographics and failed disc surgery rates within the local context. OBJECTIVE: The aim of this study was to review the demographics of the @entity1 population presenting for surgical treatment of @entity890 and to review our results of lumbosacral microdiscectomy at a university hospital in Pakistan. METHODS: This is a retrospective analysis of all adult @entity1 admitted from January 2003 to January 2008 for symptomatic @entity890 requiring microdiscectomy, at the Aga Khan University Hospital, Karachi. Data were collected through our medical records, on a standardized form. Basic information about the @entity1 population, disease process, modes of nonsurgical treatment, and details on surgery and postoperative course were recorded and analyzed using SPSS. RESULTS: Five hundred one @entity1 were studied, based on inclusion criteria. The mean age was 41.2 years; 347 (69%) @entity1 were male and 154 (31%) female. Mean body mass index of the population was 26 and was higher in females. All @entity1 primarily presented with @entity614 , and the mean duration of these symptoms was 438 days. Mean duration of nonoperative management was 53 weeks. Fifty-one @entity1 (10.2%) had previously undergone spine surgery. A total of 442 (88%) @entity1 were operated at single disc level, and the rest at two levels. Sixty-six (13%) @entity1 were operated for @entity890 . Mean operative time was 94 minutes, and the most common complication was dural tear. Mean length of hospital stay was 5 days (2-12 days). Mean follow-up was 48.3 weeks (4 weeks to 14 years). Complete resolution of symptoms was seen in 360 (71.9%) @entity1 and failed disc surgery was diagnosed in 42 (8.4%) @entity1 . Twenty-six @entity1 (5.2%) were reoperated upon, with gradual improvement. The authors report an overall failed back surgery rate of 8.38%. CONCLUSIONS: Overall our results were comparable to published international literature. However, the authors observed significant differences in demographics, especially in terms of age, gender distribution, and mean BMI of @entity1 population as well as frequency of involvement of upper lumbar discs.
