Brosco sells an aluminum sill extender: Extra Wide Wall Aluminum Sill Extender (not applied): 12'-0 piece only. 3/16 thick aluminum to extend a 6-9/16 wall sill up to 11-1/2. Field application is required.
Neurologic symptoms are frequent with osteoblastoma given their larger size and more aggressive biology. Painful scoliosis is a common presentation, typically with an eccentric thoracic or lumbar lesion of the posterior elements located on the concave aspect of the apex of the main curve.
Osteopenia usually has no symptoms. There is no pain or any other sign to signal that the bone is becoming thinner, although there may be incidences of frequent fractures as the bones tend to become fragile and soft.