G Reuther 1 , U Röhner 2 , T Will 2 , I Dehne 1 , U Petereit 2 Show Affiliations »
Abstract
PURPOSE: To evaluate time efficiency, radiation dose, precision and complications of percutaneous iliosacral screw placement under CT-guidance in local anaesthesia. MATERIAL AND METHODS: Retrospective analysis of 143 interventions in 135 patients during a period of 42 months. Implant failures could be evaluated in 85/182 screws and bony healing or refracturing in 46/182 screws. RESULTS: A total of 182 iliosacral screw placements in 179 vertical sacral fractures (105 unilateral, 37 bilateral) took place in 135 patients. 166/179 of the sacral fractures were detected in Denis zone 1,10 in Denis zone 2 and 3 in Denis zone 3. No screw misplacements including the simultaneous bilateral procedures were noted. The average time for a unilateral screw placement was 23 minutes (range: 14 -52 minutes) and 35 minutes (range: 21 - 60 minutes) for simultaneous bilateral screwing. The dose length product was 365 mGy × cm (range: 162 - 1014 mGy × cm) for the unilateral and 470 mGy × cm (range: 270 - 1271 mGy × cm) for the bilateral procedure. 1 gluteal bleeding occurred as the only acute minor complication (0.7 %). Fracture healing was verified with follow-up CTs in 42/46 sacral fractures after screw placement. Backing out occurred in 12/85 screws between 6 and 69 days after intervention. In 8 patients contralateral stress fractures were detected after unilateral screw placement between day 10 and 127 (average: 48 days). CONCLUSION: CT-guided iliosacral screw placement in sacral fractures is a safe tool providing a very high precision. The radiation dose is in the order of a diagnostic CT of the pelvis for both unilateral and bilateral screws. Contralateral stress fractures in unilateral screw placements have to be considered during the first weeks after intervention. © Georg Thieme Verlag KG Stuttgart · New York.
PURPOSE: To evaluate time efficiency, radiation dose, precision and complications of percutaneous iliosacral screw placement under CT-guidance in local anaesthesia. MATERIAL AND METHODS: Retrospective analysis of 143 interventions in 135 patients during a period of 42 months. Implant failures could be evaluated in 85/182 screws and bony healing or refracturing in 46/182 screws. RESULTS: A total of 182 iliosacral screw placements in 179 vertical sacral fractures (105 unilateral, 37 bilateral) took place in 135 patients . 166/179 of the sacral fractures were detected in Denis zone 1,10 in Denis zone 2 and 3 in Denis zone 3. No screw misplacements including the simultaneous bilateral procedures were noted. The average time for a unilateral screw placement was 23 minutes (range: 14 -52 minutes) and 35 minutes (range: 21 - 60 minutes) for simultaneous bilateral screwing. The dose length product was 365 mGy × cm (range: 162 - 1014 mGy × cm) for the unilateral and 470 mGy × cm (range: 270 - 1271 mGy × cm) for the bilateral procedure. 1 gluteal bleeding occurred as the only acute minor complication (0.7 %). Fracture healing was verified with follow-up CTs in 42/46 sacral fractures after screw placement. Backing out occurred in 12/85 screws between 6 and 69 days after intervention. In 8 patients contralateral stress fractures were detected after unilateral screw placement between day 10 and 127 (average: 48 days). CONCLUSION: CT-guided iliosacral screw placement in sacral fractures is a safe tool providing a very high precision. The radiation dose is in the order of a diagnostic CT of the pelvis for both unilateral and bilateral screws. Contralateral stress fractures in unilateral screw placements have to be considered during the first weeks after intervention. © Georg Thieme Verlag KG Stuttgart · New York.
Entities: Disease
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Year: 2014
PMID： 24955646 DOI： 10.1055/s-0034-1366605
Source DB: PubMed Journal: Rofo ISSN： 1438-9010