Severe @entity425 is an infrequent symptom in the course of lumbar @entity850 . The objectives of this study are threefold: to describe the @entity51 , evaluate the prognosis factors, and determine the type of @entity850 most likely to be complicated by motor loss. Fifty consecutive @entity1 with a mean age of 65 years, operated on for @entity2649 and with a severe @entity51 , have been retrospectively studied with a mean follow-up of 38 months. The overall functional result was evaluated according to the Beaujon scoring system. The motor capacity was rated from 0 (complete paralysis) to 5 (normal strength). Prognosis factors were investigated with a multivariate analysis model. Motor weakness was rated as zero 11 times, as one 8 times, as two 8 times, and as three 23 times. According to our rating scale, the overall results were considered excellent in 25 cases, good in 17 cases, and fair in the 8 remaining cases. @entity425 was complete 15 times, partial 25 times, and null 10 times. In this study, favorable prognosis parameters of @entity425 recovery were as follows: association with a discal herniation, @entity850 at one level, preoperative duration of @entity425 <6 weeks, age <65, and monoradicular deficit. In contrast, severity of the initial @entity425 , association with @entity1690 , presence or not of degenerative spondylolisthesis, or of a complete block on the myelogram were not influential variables.

XXXX in @entity2649 : a retrospective study of a series of 50 @entity1 .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity1690 :: ('MESH:D046628', 'Disease') :: ['sphincter abnormalities'] @entity2649 :: ('MESH:C563613', 'Disease') :: ['a lumbar stenosis'] @entity425 :: ('MESH:D018908', 'Disease') :: ['motor weakness', 'Regression of motor weakness'] @entity51 :: ('MESH:D009461', 'Disease') :: ['motor deficit'] @entity850 :: ('MESH:D003251', 'Disease') :: ['stenosis']
@entity51 :: (MESH:D009461,Disease) :: ['Motor deficit']
