Abstract
Acetabular bone loss presents a challenge to the revision total hip arthroplasty surgeon. It is described a technique of stressing the acetabular bone intra-operatively to access for pelvic discontinuity and the use of allograft to fill the bone gap. Three radiographic criteria are assessed on the AP radiograph for pre-operative classification according to the Paprosky system. This paper describes the pre-operative assessment, the acetabular defect classification and the surgery to achieve a successful outcome.
Highlights
Dependent on the cause, pain or functional failure in the hip may be resolved by acetabular revision [1,2]
Acetabular bone loss presents a challenge to the revision total hip arthroplasty surgeon
Demineralized Bone Matrices (DBM) are one option for the treatment of large acetabular defects to restore bone and enhance fixation of the socket. Bone void fillers, such as allograft bone chips, can be used as a graft extender, eliminate donor-site morbidity, and overcome restricted availability and donor-site comorbidity associated with autografts One such DBM, ReadiGraft® BLX Putty*, may be used in acetabular revisions
Summary
Pain or functional failure in the hip may be resolved by acetabular revision [1,2]. Demineralized Bone Matrices (DBM) are one option for the treatment of large acetabular defects to restore bone and enhance fixation of the socket Bone void fillers, such as allograft bone chips, can be used as a graft extender, eliminate donor-site morbidity, and overcome restricted availability and donor-site comorbidity associated with autografts One such DBM, ReadiGraft® BLX Putty*, may be used in acetabular revisions. ReadiGraft® BLX Putty is a demineralized bone matrix (DBM) used in orthopedic and spine procedures This graft is biocompatible, osteoconductive, and osteoinductive. Ability to obtain cementless fixation for a given bone loss pattern Key of this classification is ability of the remaining lost bone to provide initial stability of the hemispherical cementless acetabular component until ingrowth
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