Synovial Osteochondromatosis

Abstract

The shoulder joint trauma after one to two years usually induces growth ofits traumatic separated articular cartilage pieces, which sometime further deteriorates intoan uncommon condition termed as SOC (Secondary synovial osteo-chondromatosis).Objectives: Is to determine the secondary osteochondromatosis of shoulder joint by itsspecific differentiating features in history, skiagram, sonogram, MRI and microscopic findingsof tissue of the affected joint. Methods: A male of 34 years with complaint of pain, stiffness anddecreased range of movement in left shoulder joint came to an adult orthopedic outdoor unit,Shalimar Hospital, Lahore, Pakistan and admitted in the orthopedic unit 3 for treatment. Afterphysical /clinical examination, Skiagram, sonogram and MRI of the patient’s affected shoulderjoint were performed by the Radiology department and diagnosed as secondary variety ofosteochondromatosis of the shoulder joint. Its nodules excised through arthroscopy wereexamined histopathologically and found to contain fragments of articular cartilage with ringof calcification. Conclusion: MRI imaging as compared to other medical imaging modalitiesis more precise in estimating diagnosis of secondary osteochondromatosis. However thediagnosis of this disorder is counter confirmed by presence of loose bodies of hyaline cartilageencircled by calcification lamellae on histopathological examination.