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Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_III | Pages 364 - 364
1 Mar 2004
Elyazid M Garofalo R Blanc C Fischer J Pelet S Leyvraz P
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Background: We evaluate the role of percutaneous þxation of Acetabular fractures in a selected group of patients in which conservative management seemed unlikely to yield a satisfying outcome. Method: Between July 1998 and July 2001, 17 consecutive patients having suffered an Acetabular fracture underwent ßuoroscopic guided percutaneous þxation to stabilize the fracture. The mean age of the patients was 81 years (range 67 to 90). In all cases the fracture was non-displaced or minimally displaced (< 2 mm). The operative indication was based on our experience that these patients would have a less favorable outcome with conservative management due to their diminished general health and important associated morbidity. Percutaneous þxation was performed at a mean of four days post injury (range 2–6). In all cases, 2 cannulated cancellous 7.3 mm were used, one to þx the anterior column and the other, inserted in a retrograde fashion to stabilize the posterior column. Bed to armchair transfer began after 24 hours. Weight bearing as tolerated was allowed at 4 weeks from surgery. Two patients died of unrelated causes in the postoperative period and one patient was lost to follow-up, leaving fourteen patients who could be followed for a mean of 1,5 years (range 6 months-3 years). Results: Soft tissue dissection was minimal. There were no intra-operative or post-operative complications. At latest follow-up there was no evidence radiographically of displacement of fragments, degenerative changes or screw failure. Fracture union was achieved at a mean period of 12 weeks (range, 8–15 weeks) after surgery. In one case the tip of the posterior screw penetrated the sacroiliac joint, but no clinical adverse effects were noted. Clinical results was satisfactory in thirteen patients, and fair in one patient, as assessed by the Matta modiþcation of the rating system described by dñAubigne and Postel. Conclusion: Our results show that the percutaneous þxation is a valid therapeutic option in selected Acetabular fractures, and in the future broader indications may be found for this technique.


Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_III | Pages 295 - 296
1 Mar 2004
Elyazid M Wintermark M Theumann N Schnyder P Leyvraz P
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Purpose: To determine if multidetector-row CT (MDCT) can replace conventional radiographs and be performed alone in severe trauma patients for the depiction of thoracolumbar spine fractures. Materials and Methods: One hundred consecutive severe trauma patients who underwent conventional radiographs of the thoracolumbar spine as well as thoraco-abdominal MDCT were prospectively identiþed. Conventional radiographs were reviewed independently by 3 radiologists and 2 orthopedic surgeons, and MDCT by 3 radiologists. Reviewers were blinded both to each other and to the results of the initial evaluation of these examinations. Presence, location and stability of fractures, as well as quality of reviewed imaging methods were assessed. Statistical analysis was performed to determine sensitivity and inter-observer agreement of each procedure, with clinical and radiological follow-up chosen as the reference standard. Time to perform each examination as well as involved radiation doses were also evaluated. Finally, a resource cost analysis was performed. Results: Sixty-seven fractured vertebrae in 26 of the patients were diagnosed. Twelve patients showed unstable spine fractures. Sensitivity and inter-observer agreement for unstable fractures amounted to 97.2% and 95.1% with MDCT, and 33.3% and 36.8% with conventional radiology. Average times in the performance of conventional radiographs and MDCT examinations amounted to 33 minutes and 40 minutes, respectively. Effective radiation doses involved in conventional radiographs of the spine and thoraco-abdominal MDCT amounted to 6.36 mSv and 19.42 mSv, respectively. MDCT afforded identiþcation of 145 associated traumatic lesions. Finally, costs of conventional radiographs and of MDCT amounted to 145 US$ and 880 US$ per patient, respectively. Conclusion: MDCT is a better test for depicting spine fractures than conventional radiographs. It can replace conventional radiographs and be performed alone in severe trauma patients.