Reconstruction using a constrained-type hip tumor prosthesis after resection of malignant periacetabular tumors: A study by the Japanese Musculoskeletal Oncology Group (JMOG)

Journal of Surgical Oncology
Koichi OguraA Kawai

Abstract

We conducted a nationwide survey of prosthetic reconstruction using a constrained-type hip tumor prosthesis (C-THA) following resection of periacetabular tumors. Eighty patients with periacetabular tumors underwent wide resection and prosthetic reconstruction using C-THA at JMOG-affiliated institutions (39 males and 41 females; mean age, 46.7 years; mean follow-up period, 65 months). Primary bone or soft tissue sarcoma accounted for 75% of the cases. Adjuvant radiotherapy and chemotherapy were performed for 12 and 37 patients, respectively. There were 21 local recurrences (26%), necessitating amputation in 2 patients. Other postoperative complications included deep infection in 31 patients (39%), delayed wound healing in 25 (31%), and prosthesis-related complications requiring surgery in 7 (9%). Removal of the prosthesis was required in 23 patients (29%) (deep infection (n = 20), local recurrence resulting in amputation (n = 2), and outer cup displacement (n = 1). Patients whose abductor muscle was conserved or who underwent functional abductor muscle reconstruction showed significantly longer prosthesis survival. No postoperative wound complications occurred in three recent patients undergoing wound management with a RAM flap....Continue Reading

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