(P 275) RECONSTRUCTION WITH A BURCH-SCHNEIDER CAGE AFTER BONE AND SOFT TISSUUE TUMOR SURGERY

Objective: In affected limb-preserving surgery for bone and soft tissue tumors requiring resection of the pelvis, artificial joints are used in many cases. Better artificial joint function and long-term results depend on the type of equipment selected. In this study, we examined the stability of the acetabular side, and used a Burch-Schneider cage.

Methods: Case 1: A patient with soft tissue gluteal sarcoma. Combined resection of the ilium and sacrum was performed. Subsequently, reconstruction with an artificial joint was conducted, but postoperative loosening and breakage led to additional surgery. For additional replacement, a Burch-Schneider cage was used. The cage was fixed to the sacral region. During the 4-year postoperative follow-up, there has been no loosening. The patient is able to walk with a cane.
Case 2: A patient with an aneurysmal bone cyst of the acetabulum. Curettage of the tumor site was performed, resulting in an acetabular bone defect. After bone grafting, the acetabulum was reconstructed using a Burch-Schneider cage. Fixation to the ischial region has been firmly maintained. After surgery, lower limb motor function was acquired.When performing artificial joint reconstruction after tumorectomy with acetabular resection, a bone defect at an area corresponding to the acetabulum becomes a problem.

Results: When performing artificial joint reconstruction after tumorectomy with acetabular resection, a bone defect at an area corresponding to the acetabulum becomes a problem.

Conclusion: To reconstruct the hip to which a load can be sufficiently applied, a Burch-Schneider cage was used. It was stable when there was a bone defect on the mounting surface or when it was placed in a non-acetabular area, facilitating walking. Reconstruction with a minimum implant was possible, which was a merit of adopting this cage.