Orthopaedic management in four cases of mucolipidosis type III

Four patients with mucolipidosis type III, three of them brothers, were see n initially in the first two decades of life. Their main symptoms were carp al tunnel syndrome, trigger fingers and generalized joint stiffness. Radiog raphs showed spinal deformities and hip dysplasia, but these were not causi ng pain. Carpal tunnel syndrome was treated surgically but joint stiffness and hip and knee contractures were managed by physiotherapy, Up to the age of 24 none of these patients has had pelvic osteotomy for hip dysplasia; th is operation, not yet reported in mucolipidosis type III, may eventually be necessary.