Type 1 pelvic resection

Type 1 pelvic resections are complex surgeries that involve removing part of the pelvis, usually to resect malignant tumor.

Type 1 pelvic resections remove a varying amount of the iliac bone, and are classified in general terms as "partial" or "complete", depending on how much of the iliac bone is resected. The acetabulum is spared (and this is one of the largest benefits of this procedure over a hemipelvectomy).

The iliac bone provides:

  • weight support from the body to the ipsilateral lower limb
  • an attachment site for muscles, ligaments, and tendons

Resection of the iliac bone therefore provides many technical challenges if the surgeon wants to preserve as much function as possible. Bony grafts (e.g. fibula) and arthoplasty/prosthesis hardware can be used to try to reproduce some of the iliac bone's functions. If the defect is small, the pelvic ring can also be "closed down" with a wired arthodesis between the residual iliac bone and the sacrum.

Some further divide type 1 resections into

  • type 1-A: removal of the gluteal muscle
  • type 1-S: removal of part of the sacrum (also called "type 4" by some)
Share article

Article information

rID: 37757
Synonyms or Alternate Spellings:
  • Ilium resection
  • Iliac bone resection

Support Radiopaedia and see fewer ads

Cases and figures

  • Resection of most...
    Figure 1: type 1 pelvic resection, complete
    Drag here to reorder.
  • Complete type 1 (...
    Case 1: complete type 1 with humeral head allograft
    Drag here to reorder.
  • Partial resection...
    Figure 2: type 1 pelvic resection, partial
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.