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Austin J Clin Case Rep. 2019; 6(2): 1146.
Neurogenic Para-Osteoarthropathy
Hamri H*, Chaoui S, Laamrani Fz and Jroundi L
Imaging Department, Mohammed V University, Morocco
*Corresponding author: Hamri H, Imaging Department, Ibn Sina Hospital, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
Received: May 15, 2019; Accepted: May 27, 2019; Published: June 03, 2019
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35-year-old patient, with no medical history, admitted to resuscitation department for severe polytrauma after a road accident. Abdominopelvic CT realized a month later revealed bilateral coxofemoral para-articular exuberant bone structures with preservation of joint space and moderate bone demineralization in relation with a neurogenic para-osteoarthropathy (NPOA) (Figure 1). NPOA or neurogenic osteoma or myositis ossificans (NMO) is the development of a heterotopic bone in the para-articular tissues in patients with severe traumatic brain injury, as in the case of our patient. It results from neuro-vegetative abnormalities. We distinguish two forms in imaging; the atrophic form, associating bone demineralization, early narrowing of the joint space and frequent misalignments and the hypertrophic form, as in our case, associating exuberant paraarticular bone structures that can be complicated by pseudoarthritis or hypertrophic callus, minimal demineralization with preservation of joint space for a long time.
Figure 1: Axial reformatting of pelvic CT: Bilateral neurogenic paraosteoarthropathy.
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