BACKGROUND: Dorsal foraminotomy is a standard operative procedure for @entity890 . Factors associated with surgical complications and clinical outcome in dorsal foraminotomy of @entity890 were evaluated in a retrospective cohort study. METHOD: Thirty-nine @entity1 were operated upon for unilateral, monosegmental, mediolateral @entity890 (+/- associated @entity4720 ) from 1997 to 1999. Preoperative radiologic imaging and surgical reports were analyzed. Motor disfunction, neck irritation, and @entity158 were evaluated. Outcome was ranked according to modified Odom's criteria at 6 weeks and 1 year postoperatively. RESULTS: Six weeks after injury 7 of 39 @entity1 (18%) showed neck irritation. No new @entity51 was seen. All @entity1 with preoperative paresis improved; two had early relapses of a medial soft disc prolapse (2/39). Residual @entity158 was seen in 3 of 39 @entity1 (8%) within 30 days postoperatively, necessitating surgical revision. Factors of surgical failure were associated @entity4720 (2/3) and residual mediolateral disc protrusion (1/3). In one @entity1 with associated @entity4720 , @entity158 due to a symptomatic @entity174 of the lateral process of D1 resolved after revision. Duration of preoperative @entity158 was identified as a risk factor for unfavorable outcome. CONCLUSION: In @entity890 , associated @entity4720 or medial disc protrusion poses a significant risk of surgical failure and complications of dorsal foraminotomy. Reducing the radicular failure rate by enlarging the bony decompression may lead to local failure. In well-selected @entity1 with a lateral cervical free disc fragment, dorsolateral foraminotomy is successful and safe.

Risk factors for outcome and complications of dorsal foraminotomy in XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity174 :: ('MESH:D050723', 'Disease') :: ['fracture'] @entity51 :: ('MESH:D009461', 'Disease') :: ['neurologic deficit'] @entity158 :: ('MESH:D010146', 'Disease') :: ['radicular pain', 'local pain'] @entity4720 :: ('MESH:D055009', 'Disease') :: ['spondylosis'] @entity890 :: ('MESH:D007405', 'Disease') :: ['cervical disc herniation', 'lateral cervical disc herniation']
@entity890 :: (MESH:D007405,Disease) :: ['cervical disc herniation']
