Neurogenic paraosteoarthropathy: a case report of bilateral knee involvement.

Saleck Choumad, Ahmed Ebedda, Hind Qajia, Nourrelhouda Bahlouli, Itimad Nassar, Kaoutar Imrani

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Article in Radiology case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Saleck ChoumadDepartment of Central Radiology, UHC Ibn Sina Mohammed V University, Rue Lamfadel Cherkaoui, Rabat 6527, Morroco.

Ahmed EbeddaDepartment of Central Radiology, UHC Ibn Sina Mohammed V University, Rue Lamfadel Cherkaoui, Rabat 6527, Morroco.

Hind QajiaDepartment of Central Radiology, UHC Ibn Sina Mohammed V University, Rue Lamfadel Cherkaoui, Rabat 6527, Morroco.

Nourrelhouda BahlouliDepartment of Central Radiology, UHC Ibn Sina Mohammed V University, Rue Lamfadel Cherkaoui, Rabat 6527, Morroco.

Itimad NassarDepartment of Central Radiology, UHC Ibn Sina Mohammed V University, Rue Lamfadel Cherkaoui, Rabat 6527, Morroco.

Kaoutar ImraniDepartment of Central Radiology, UHC Ibn Sina Mohammed V University, Rue Lamfadel Cherkaoui, Rabat 6527, Morroco.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neurogenic paraosteoarthropathy (NPOA) is a rare complication of severe neurological trauma, characterized by heterotopic bone formation in periarticular soft tissues. We report the case of a 35-year-old man who developed bilateral knee stiffness after traumatic brain injury (TBI). Computed tomography (CT) demonstrated large para-articular ossifications without joint involvement. Laboratory results excluded metabolic or infectious causes. The patient was treated conservatively with physiotherapy and nonsteroidal anti-inflammatory drugs, with partial improvement at 1-year follow-up. This case highlights the importance of CT in diagnosis and management of NPOA, especially in unusual localizations such as the knees.

Indexed as

CT imagingHeterotopic ossificationsNeurogenic paraosteoarthropathyTraumatic brain injury

Identifiers

PMID41323170

DOI10.1016/j.radcr.2025.10.047

PMCPMC12664606

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