Total hip replacement is one of the salvage treatment options for unreversible hip disease in veterinary orthopedics. Recently, cementless system has been preferred to prevent aseptic loosening recently. However, there are only a few reports of its use in small breed dogs. The aim of this study is to describe the surgical planning, the assessment of surgery, and the short-term clinical outcome of six cases of hip disease in small breed dogs treated with the Zürich Cementless Hip Replacement Mini System. Lameness was disappeared in all cases at 15.33 ± 6.31 post-operative day, and it did not recur for 3 months postoperative period. One case of intraoperative complication as an acetabular caudal pole fracture and one case of femoral fracture at 2 days after surgery were recorded. Revision surgery has been done for the femoral fracture case. Although total hip replacement in small breed dogs requires a high proficient skill and knowledges to the primary surgeon, surgical planning and evaluation using application software with X-ray images have a possibility to facilitate reproducible surgery.

Rectal diverticulum is a condition in which the rectal mucosa and submucosal layer protrude in a sac shape into the muscular dehiscence of the rectum due to the fragility and tearing of the muscular layer of the rectum wall. Solitary rectal diverticulum is a rare condition in dogs and most case were reported concurrent with perineal hernia. In this study, we reported two cases of rectal diverticulum alone without concomitant perineal hernia. In these 2 cases, rectal diverticulum occurred below the second coccygeal vertebra and no abnormalities were observed in peritoneal and pelvic diaphragm.