Heterotopic Ossification of annular ligament: A case report and review of literature.

Heterotopic Osification (HO) commonly occurs in the hip and elbow joint post, trauma, surgery or dislocation. HO can occur anywhere in the body, and the term Heterotopic Ossification of Ligaments and Tendon (HOTL) is specifically used to denote HO occurring in ligaments and tendons. HOTL of an annular ligament is reported rarely in the literature. Here we describe a case of calcified annular ligament in a neglected monteggia fracture (Bado Type – 1), which was managed by excision and reconstruction of the same using triceps fascia. Post-op review after 2.5 years showed a stable elbow, with some restriction in pronation. • Occurrence of HOTL is common in shoulder and spine. HOTL of the annular ligament is very rare yet it can occur. • HOTL of the annular ligament can obstruct the reduction of radial head in a neglected monteggia fracture. • Though reports of regression of HOTL of the annular ligament with ulnar osteotomy is reported, simple excision and reconstruction can lead to a fully functional elbow. [ABSTRACT FROM AUTHOR]