Musculo-skeletal problems are common and troublesome in Marfan syndrome. Indeed, recognition by a rheumatologist could be the first vital step towards diagnosis of the underlying condition.
Involvement of the skeleton includes curvature of the spine (scoliosis / kyphosis / lordosis), abnormally shaped chest (“pectus” deformity), tall stature, and loose jointedness (often causing joint pain and dislocation).
Physiotherapy, pain clinics and bracing may be helpful. In certain instances, surgery is indicated. Careful monitoring is needed, especially during childhood and adolescence. Arch supports (orthotics) may help your child. Weak ankles may require lace-up shoes with ankle support.
Source: The Marfan Trust