Table 1.
A list of the pathological diagnoses.
Fig 1.
The modular hemipelvic endoprosthesis used in our study.
(a) Preoperative model of pelvis. (b) Postoperative model after resection of tumor in which osteotomy was performed to sacroiliac joint and pubic symphysis. (c) Postoperative model reconstructed with modular hemipelvic endoprosthesis. (d) The sacral hook (indicated by a red arrow) transforming tearing forces of the sacral connecting screws into compressing stress. (e) and (f) The disassembled components of our modular hemipelvic endoprosthesis.
Table 2.
Types of resection and surgical margins.
Fig 2.
A Kaplan-Meier survival curve showing significant difference between recurrence rates of tumors with wide surgical margin and those with marginal or intracapsular margins (p = 0.02).
Table 3.
Results of oncology and functional status, and complication analysis.
Fig 3.
A Kaplan-Meier survival curve showing no significant difference between overall survival of primary and metastatic tumors (p = 0.60).
Fig 4.
A Kaplan-Meier survival curve showing prosthesis survival.
Fig 5.
(a) and (b) Preoperative X-ray film and MRI of a patient with osteosarcoma involving section I/II of the left hemipelvis. (c) Postoperative X-ray film showing reconstruction with the modular hemipelvic endoprosthesis. (d) The function status of the hip joint of the same patient after reconstruction showing favorable extent of hip flexion. (e) Preoperative X-ray film of a patient with osteosarcoma involving section I/II of the right hemipelvis. (f) X-ray film after neo-adjuvant chemotherapy showing significantly enhanced osteogenesis inside the tumor. (g) Preoperative MRI. (h) Postoperative X-ray film showing reconstruction with the modular hemipelvic endoprosthesis.