Iliectomy with limb preservation for a dog with ilial osteosarcoma: Surgical description and case report

Abstract

Objective To report the surgical technique for iliectomy and outcome in a single clinical case. Study design Case report. Animal A 10‐year‐old female spayed Rottweiler. Methods A dog presented with left pelvic limb lameness due to a mass involving the left ilium. Fine needle aspirates were indicative of a sarcoma and suspicious for osteosarcoma. Computed tomography of thorax, abdomen, and pelvis was performed as well as skeletal scintigraphy, with no evidence of metastasis seen. The dog underwent iliectomy with preservation of the ipsilateral limb and was ambulatory 24 hours after surgery. Results of histopathology confirmed the diagnosis of an osteosarcoma. Results A right ischial fracture was noted 8 days postoperatively and was conservatively managed. Local recurrence was reported 385 days postoperatively, with no overt metastatic disease revealed by computed tomography of the thorax and abdomen. The dog was euthanized because of local recurrence 430 days after surgery. Conclusion Iliectomy was well tolerated in this dog and afforded good function of the pelvic limbs. Local recurrence developed with no evidence of metastasis at the last follow‐up. Iliectomy can be considered for a mass confined to the ilium when preservation of the limb is desired. Additional studies are required to determine the local recurrence and complication rates associated with this procedure in dogs with axial skeletal osteosarcoma. Clinical significance To the authors' knowledge, this case report represents the fist surgical description and clinical outcome for an iliectomy in dogs.

Aneurysmal bone cyst in the pelvis of a cat: successful outcome of partial iliectomy with limb preservation

“…In a recent case report, an iliectomy was described in a 10-year-old Rottweiler. 31 The dog subsequently suffered a postoperative ischial fracture that led to transient pelvic limb lameness, but with severe permanent narrowing of the pelvic canal. 31 However, in the canine case report, 31 the iliectomy included a considerably larger portion of the ilium and included elimination of the SI joint, destabilising the weightbearing axis of the ipsilateral pelvic limb.…”

“…31 The dog subsequently suffered a postoperative ischial fracture that led to transient pelvic limb lameness, but with severe permanent narrowing of the pelvic canal. 31 However, in the canine case report, 31 the iliectomy included a considerably larger portion of the ilium and included elimination of the SI joint, destabilising the weightbearing axis of the ipsilateral pelvic limb. Conversely, in our case, the caudal portion of the SI joint remained intact and so the expected forces and outcome would be different, apart from our patient being considerably smaller.…”

Cranial internal hemipelvectomy (iliectomy) with limb sparing for a dog with ilial chondrosarcoma: a case report

“…4 Internal hemipelvectomy may alter the weight bearing axis of the contralateral hemipelvis resulting in fractures. 22 The decision regarding which surgery is appropriate should depend on the owner's goals, the surgeons experience, comorbidities, extent of neoplasia, presence of metastasis, and ability to pursue adjuvant radiation therapy.…”

“…21 Cranial internal hemipelvectomy was reported to be a feasible surgical alternative to external limb amputation in one dog with osteosarcoma. 22 However, additional case reports are required to document the utility of internal hemipelvectomy for pelvic neoplasia in the veterinary literature. The purpose of this report was to document the long-term outcome of cranial internal hemipelvectomy for a marginally resected ilial chondrosarcoma in a dog followed by adjuvant radiation therapy.…”

Cranial internal hemipelvectomy (iliectomy) with limb sparing for a dog with ilial chondrosarcoma: A case report

“…5 Internal hemipelvectomy may alter the weight-bearing axis of the contralateral hemipelvis resulting in fractures. 20 The decision regarding the extent of surgery should be made based on the owner's goals, surgeon's experience, comorbidities, extent of neoplasia, presence of metastasis, and ability to pursue adjuvant radiation therapy or chemotherapy (depending on histological result). Wide resection of the sacral wing was not performed as the goal was to perform a marginal resection followed by radiation therapy; however, the grossly abnormal bone associated with most lateral aspect of the sacrum was removed with rongeurs.…”