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.

Authors: Eva Schnabl-Feichter, Sophia Schnabl, Alexander Tichy, Michaela Gumpenberger, Barbara Bockstahler

Objectives: The objective of this study was to compare ground reaction forces (GRFs) of a group of cats after femoral head and neck ostectomy (FHO) with those of a historical control group.

Authors: Steven C Budsberg, Bryan T Torres, Gabriella S Sandberg

Objective: A systematic review of published data to determine whether postoperative antibiotic use after tibial plateau leveling osteotomy (TPLO) decreases infection rates.

Study design: Systematic review.

Authors: Fiona J Coghill, Louisa K Ho-Eckart, Wendy I Baltzer

Objective: The aim of this study was to determine owner-assessed mid- to long-term outcome for dogs with medial compartment disease treated arthroscopically with fragment removal with or without proximal abducting ulnar osteotomy (PAUL).

Study design: This was a retrospective clinical study.