Protocol Proposal for Management of Neurogenic Heterotopic Ossification in Spinal Cord Injury: A Rehabilitation Center Experience
DOI :
https://doi.org/10.25759/spmfr.506Mots-clés :
Ossification, Heterotopic, Spinal Cord InjuriesRésumé
Introduction: Neurogenic heterotopic ossification (NHO) is a frequent complication of spinal cord injury (SCI). NHO poses a diagnostic challenge and can compromise patient functionality. Our aim is to characterize a case series of NHO in SCI patients, from a rehabilitation center, review the literature and propose a management protocol.Methods: A small case series is described based on medical records. A review of the literature for etiology, diagnosis and treatment of NHO in SCI was performed.
Results: A total of 5 SCI patients were included, 3 were male (median age 48.4 years). Three were traumatic SCI, 2 had concomitant traumatic brain injuryJ (TBI), all were thoracic lesions (T4-T9), 4 were complete lesions, 3 had autonomic dysreflexia. Median time from SCI to NHO was 2.1 months. All presented with swelling around the hip. Alkaline phosphatase (AP) and c-reactive protein (CRP) rises were documented. Main Protocol steps: - Calcium, phosphorus, AP, CK and CRP evaluation. - Asymptomatic patients: institute prophylaxis with Indomethacin (ER, 75 mg/day, 6 weeks) to SCI with less than 6 weeks, if risk factors for NHO are present. - If suggestive symptoms arise, first exclude DVT. After, request an x-ray, for differential diagnosis and evaluate calcifications. Repeat blood tests. Proceed to bone scintigraphy for early diagnosis. - Confirmed/strong suspicion NHO: initiate treatment with bisphosphonate, only in the absence of radiographic calcifications (etidronate 20 mg/kg/day, po, 6 months OR alendronate 70 mg/week, 9 months). Maintain an adapted rehabilitation program. - Significant limited ROM or complications with functional impact should motivate surgery consideration. After surgery, institute recurrence prophylaxis (pamidronate).
Conclusion: A management protocol is proposed for prompt and accurate diagnosis and treatment of NHO in SCI patients.
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