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Journal of Bone and Joint Surgery - British Volume, Vol 87-B, Issue 3, 301-305.
doi: 10.1302/0301-620X.87B3.14737  
Copyright © 2005 by British Editorial Society of Bone and Joint Surgery
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Ankylosing neurogenic myositis ossificans of the hip

AN ENHANCED VOLUMETRIC CT STUDY

R. Y. Carlier, MD, Radiologist1; D. M. L. Safa, MD, Radiologist1; P. Parva, MD, Radiologist1; D. Mompoint, MD, Radiologist1; T. Judet, MD, Surgeon2; P. Denormandie, MD, PhD, Surgeon2; and C. A. Vallée, MD, Radiologist1

1 Medical Imaging Department
2 Department of Orthopaedic and Trauma Surgery Raymond Poincaré Teaching Hospital, Assistance Publique-Hôpitaux de Paris, 104 Boulevard Raymond Poincaré, 92380 Garches, France.

T. Judet, MD, Surgeon; and P. Denormandie, MD, PhD, Surgeon

Department of Orthopaedic and Trauma Surgery Raymond Poincaré Teaching Hospital, Assistance Publique-Hôpitaux de Paris, 104 Boulevard Raymond Poincaré, 92380 Garches, France.

Correspondence should be sent to Dr R. Y. Carlier; e-mail: robert.carlier{at}rpc.ap-hop-paris.fr

Neurogenic myositis ossificans is a disabling condition affecting the large joints of patients with severe post-traumatic impairment of the central nervous system. It can result in ankylosis of the joint and vascular or neural compression. Surgery may be hazardous with potential haemorrhage, neurovascular injury, iatrogenic fracture and osteochondral injury. We undertook pre-operative volumetric CT assessment of 45 ankylosed hips with neurogenic myositis ossificans which required surgery. Helical CT with intravenous contrast, combined with two- and three-dimensional surface reconstructions, was the only pre-operative imaging procedure. This gave good differentiation of the heterotopic bone from the adjacent vessels. We established that early surgery, within 24 months of injury, was neither complicated by peri-operative fracture nor by the early recurrence of neurogenic myositis ossificans. Surgical delay was associated with a loss of joint space and a greater degree of bone demineralisation. Enhanced volumetric CT is an excellent method for the pre-operative assessment of neurogenic myositis ossificans and correlates well with the operative findings.




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Myositis around the hip
Manoj Todkar
J Bone Joint Surg Br Online, 13 Jun 2005 [Full text]

(c) British Editorial Society of Bone and Joint Surgery All Rights Reserved
Registered charity no: 209299     Print ISSN: 0301-620X
Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General