| Popis: |
Femoral cavitary defects present a true challenge to the reconstructive hip surgeon. As described by D’Antonio et al., cavitary defects are contained lesions. The cortical shell remains intact while cancellous and endosteal cortical bone are eroded through several different mechanisms.1 The surgeon is faced with a sclerotic, irregular endosteal surface, which may provide neither osseous apposition nor stability for the revision implant.2 Discussion of treatment for this difficult problem focuses on the state of the revision femur, classification of femoral deficiencies, philosophies in revision, preoperative planning, component choices, and grafting options. Despite variations in systems of classification, approach, and management of this difficult problem, the goals of pain relief, bone loss arrest, bone stock restoration,3 and long-term mechanical stability are constants throughout the literature.4 |
