Osteotomy/Ostectomy

Authors: C Gordon, N Nakahara, C Thomson, Ras Mitchell

Surgical management of chondrosarcoma with hemipelvectomy is well described, but there have been no reports on extensive excision involving bilateral pubis and unilateral ischium.

This report describes a novel pelvectomy technique for the treatment of chondrosarcoma in a large-breed dog. A 12-year-old Labrador Retriever presented for tenesmus due to a large, intra-pelvic mass which was confirmed on computed tomography (CT). Surgery involved removal of the entire left ischium and both pubic bones with preservation of both hind limbs.

Authors: Alan Danielski, Alexander Krekis, Russell Yeadon, Miguel Angel Solano, Tim Parkin, Aldo Vezzoni, Ingo Pfeil

Objective: To report complications and prognostic factors in dogs undergoing proximal abducting ulnar osteotomy (PAUL). To evaluate the ability to predict complications on the basis of post-operative radiographic examination.

Study design: Retrospective cohort study.

Animals: Sixty-six dogs.

Authors: Surabhi Sharma, Sarah E Boston, Craig Mosley, Matthew Boylan

Case description: A 2-year-old 5.1-kg (11.2-lb) castrated male Siberian cat was examined because of a history of an abnormal right pelvic limb gait and a 4- to 5-month history of progressive constipation. Radiographs obtained by the referring veterinarian showed an osteoproductive and osteolytic bony lesion that involved the right ischium and filled the obturator foramen.

Authors: Tommaso Nicetto, Alberto Coltro, Federico Massari

Case description: A 5-year-old 4.0-kg (8.8-lb) castrated male domestic shorthair cat was referred because of grade 4/5 left hind limb lameness and swelling in the region of the second metatarsal bone of that limb.

Clinical findings: Computed tomography revealed an expansile osteolytic lesion of the second metatarsal bone associated with a periosteal reaction on the third metatarsal bone. There was no evidence of metastases.

Authors: Joseph A Sapora, Ross H Palmer, Clara S S Goh

Objective: To assess the accuracy and efficiency of performing ventral FHO (vFHO) after measuring the ideal femoral head and neck ostectomy angle (iFHOA), with and without guidance of a K-wire. To compare the iFHOA to the previously accepted 45° angle to guide vFHOs.

Study design: Randomized, controlled, ex vivo study.

Animals: Ten mixed-breed canine cadavers.

Authors: Tom Ichinohe, Satoshi Yamakawa, Masakazu Shimada, Nobuo Kanno, Yukihiro Fujita, Yasuji Harada, Hiromichi Fujie, Yasushi Hara

Objective: To investigate the effect of an excessive tibial plateau angle (TPA) and change in compressive load on tensile forces experienced by the cranial cruciate, medial collateral, and lateral collateral ligaments (CCL, MCL, and LCL, respectively) of canine stifle joints.

Sample: 16 cadaveric stifle joints from 16 orthopedically normal Beagles.

Authors: Cindy M Geier, Steven W Frederick, Alan R Cross

Objective: To evaluate the effect of postoperative tibial plateau angle (TPA) following tibial plateau leveling osteotomy (TPLO) on the risk of patella fracture during the convalescent period.

Study design: Retrospective study.

Sample population: Fracture group: 20 stifles; reference group: 65 stifles.

Authors: Jaemin Jeong, Seong Mok Jeong, Stanley E Kim, Daniel D Lewis, Haebeom Lee

Objective: To evaluate the short- and mid-term effects of tibial tuberosity advancement (TTA) and tibial plateau leveling osteotomy (TPLO) on subsequent meniscal tears.

Study design: Experimental in vivo study.

Animals: Purpose-bred beagle dogs (n = 15).

Authors: Alexandra B Kalamaras, Turi K Aarnes, Sarah A Moore, Stephen C Jones, Carolina Ricco Pereira, Juan Peng, Nina R Kieves

Objective: To compare the quality of postoperative analgesia and sedation after preoperative saphenous and sciatic nerve blockade, preoperative lumbosacral epidural injection and perioperative intravenous (IV) morphine, lidocaine and ketamine infusions in dogs undergoing stifle arthroscopy and tibial plateau leveling osteotomy (TPLO) under general anesthesia.

Study design: Prospective, blinded, randomized, clinical comparison study.

Authors: Renee A McDougall, Daniel I Spector, Robert C Hart, David L Dycus, Hollis N Erb

Objective: To identify demographic risk factors for deep surgical site infection (SSI) requiring tibial plateau leveling osteotomy (TPLO) implant removal and time to implant removal.

Animals: Four hundred and thirty-three dogs that underwent a TPLO (144 that developed a deep SSI and required implant removal, 289 that did not).

Study design: Retrospective case-control study.