Update of a retrospective cohort study of changes in hip joint phenotype of dogs evaluated by the OFA in the United States, 1989-2003.

Objective: To determine whether there has been improvement in canine hip joint phenotype classifications of dogs whelped from 1989 to 2003 by the Orthopedic Foundation for Animals (OFA), by examining results of radiographic evaluations and identifying any trends in percentages of dogs classified as having desirable hip joint phenotypes.

Study Design: Retrospective cohort study.

Sample Population: OFA radiographic classifications (n=431,483) on dogs whelped between 1989 and 2003.

Retrospective cohort study of changes in hip joint phenotype of dogs in the United States.

Objective: To determine whether there had been a significant improvement in hip joint phenotype of dogs in the United States by comparing results of evaluations done by the Orthopedic Foundation for Animals of dogs born between 1972 and 1980 with those of dogs born between 1989 and 1992 and determining whether there had been an increase in the percentage of dogs classified as having excellent hip joint phenotype.

Design: Retrospective cohort study.

Sample Population: 270,978 evaluations.

The inheritance of osteochondritis dissecans and fragmented coronoid process of the elbow joint in labrador retrievers.

Five matings between dogs bilaterally affected with osteochondritis dissecans and fragmented coronoid processes resulted in a distribution of lesions in the elbows of the offspring that indicated the diseases were inherited independently as polygenic traits.

Preoperative radiation therapy produces an early and persistent reduction in colorectal anastomotic blood flow.

Preoperative external beam radiation therapy (RT) is an increasingly popular form of adjunct therapy for rectal cancer; however, little is known about its effects on healing of colorectal anastomoses. We serially evaluated colorectal anastomotic healing following moderate dose RT. Twenty-four adult female pigs were administered 4250 centiGrays (cGy) of external beam pelvic RT over 4 weeks followed by rectosigmoid resection with handsewn or circular stapled anastomosis.

Efficacy of clindamycin in the treatment of Staphylococcus aureus osteomyelitis in dogs.

The efficacy of clindamycin in the treatment of experimentally induced, posttraumatic Staphylococcus aureus osteomyelitis was studied in dogs. At the end of the experiment, bacteria could not be isolated from bone marrow of 15 of 16 (93.7%) dogs treated with clindamycin, whereas bacteria could not be isolated from similar specimens obtained from 6 of 13 (46.