title: Extra-articular Synovial Chondromatosis Eroding and Penetrating the Acromion.
abstract: Synovial chondromatosis of the shoulder is an uncommon disorder. It usually affects the glenohumeral joint and is characterized by metaplasia of the synovium leading to the formation of osteochondral loose bodies. Few cases of extra-articular subacromial synovial chondromatosis involving the rotator cuff tendon have been reported in the literature. The treatment of previously reported cases consisted of open bursectomy and removal of loose bodies. We report a case of subacromial synovial chondromatosis without rotator cuff involvement but with severe erosion and fracture of the acromion. Treatment consisted of shoulder arthroscopy to remove all loose bodies, total bursectomy, and debridement of the acromion. Potential benefits of arthroscopy were also evaluated.
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Saint Georges University Medical Center, Beirut, Lebanon.
authors.forename: George
authors.initials: G
authors.lastname: El Rassi
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Saint Georges University Medical Center, Beirut, Lebanon.
authors.forename: Jihad
authors.initials: J
authors.lastname: Matta
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Saint Georges University Medical Center, Beirut, Lebanon.
authors.forename: Ayman
authors.initials: A
authors.lastname: Hijjawi
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Saint Georges University Medical Center, Beirut, Lebanon.
authors.forename: Ousama Abou
authors.initials: OA
authors.lastname: Khair
authors.affiliation: Department of Orthopedic Surgery and Traumatology, Saint Georges University Medical Center, Beirut, Lebanon.
authors.forename: Sara
authors.initials: S
authors.lastname: Fahs