Clinical efficacy of bone cement augmented screw fixation for the severe XXXX spine.

@entity3604 @entity1 @entity174 @entity16 @entity170 @entity158 @entity717
OBJECTIVE: Transpedicular instrumentation of the @entity3604 spine is a challenge for the spine surgeon due to the probability of screw loosening and the potential possibility of nonunion. The purpose of this study was to evaluate the clinical efficacy of bone cement augmented screw fixation in @entity1 with severe @entity170 . METHODS: Between February 2004 and August 2007, 250 @entity1 with severe @entity170 (T-score on BMD < -3.0) that had screw fixation were included in this study. The @entity1 were divided into two groups (Group I: 157 @entity1 that underwent bone cement augmented screw fixation that had a variety of spine spinal diseases including @entity174 , and Group II: 93 @entity1 with severe @entity170 that had screw fixation without bone cement augmentation). The imaging and clinical features were analyzed, including bone cement augmented levels, fusion rate and related complications. The visual analog scale (VAS), @entity717 questionnaire (ODI) and modified MacNab's criteria were used for the assessment of @entity158 and functional capacity. RESULTS: In both groups, a significant improvement in the VAS and ODI was achieved. 146 out of 157 @entity1 (93%) in Group I and 83 out of 93 @entity1 (90%) in Group II were graded as an excellent or good result according to the modified MacNab's criteria. None of the @entity1 experienced serious complications. However, there were two cases with @entity16 as a result of bone cement extravasation in Group I. For Group II, there were five cases of screw loosening that required re-operation for bone cement augmentation. CONCLUSION: Whether bone cement augmentation was performed or not, it was possible to achieve satisfactory results in @entity1 with severe @entity170 . However, if used carefully, bone cement augmented transpedicular screwing can reduce screw loosening and pullout in @entity1 with severe @entity170 .
