“…Recently, however, limb salvage surgery in the pelvis is more common due to better function, quality of life and acceptable local recurrence. Though limb salvage surgery remains difficult and challenging, various methods were used to reconstruct the hemipelvis after periacetabular reconstruction resection, including ischiofemoral arthrodesis or pseudarthrosis, iliofemoral arthrodesis or pseudarthrosis [16],massive allograft [6,23,27,30],autoclaved autograft [20], allograft prosthetic composite [21,35], custom-made endoprosthesis combined with hip arthroplasty [1,17,38], modular saddle prosthesis [2,5,7] or modular hemipelvic endoprosthesis [37]. However, each method has its limitations, such as high complication or local recurrence rates or poor functional results after hemipelvic resection, etc [31].…”