Upward fixation of the patella in cattle: 38 cases (1984-1990)

A. N. Baird From the Department of Large Animal Surgery and Medicine, College of Veterinary Medicine, Auburn University, AL 36849 (Baird, Angel, Moll, Wolfe, Wenzel) and the Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, College Station, TX 77843 (Morris, Welch, Hooper).

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K. L. Angel From the Department of Large Animal Surgery and Medicine, College of Veterinary Medicine, Auburn University, AL 36849 (Baird, Angel, Moll, Wolfe, Wenzel) and the Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, College Station, TX 77843 (Morris, Welch, Hooper).

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H. D. Moll From the Department of Large Animal Surgery and Medicine, College of Veterinary Medicine, Auburn University, AL 36849 (Baird, Angel, Moll, Wolfe, Wenzel) and the Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, College Station, TX 77843 (Morris, Welch, Hooper).

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D. F. Wolfe From the Department of Large Animal Surgery and Medicine, College of Veterinary Medicine, Auburn University, AL 36849 (Baird, Angel, Moll, Wolfe, Wenzel) and the Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, College Station, TX 77843 (Morris, Welch, Hooper).

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D. L. Morris From the Department of Large Animal Surgery and Medicine, College of Veterinary Medicine, Auburn University, AL 36849 (Baird, Angel, Moll, Wolfe, Wenzel) and the Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, College Station, TX 77843 (Morris, Welch, Hooper).

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R. D. Welch From the Department of Large Animal Surgery and Medicine, College of Veterinary Medicine, Auburn University, AL 36849 (Baird, Angel, Moll, Wolfe, Wenzel) and the Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, College Station, TX 77843 (Morris, Welch, Hooper).

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R. N. Hooper From the Department of Large Animal Surgery and Medicine, College of Veterinary Medicine, Auburn University, AL 36849 (Baird, Angel, Moll, Wolfe, Wenzel) and the Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, College Station, TX 77843 (Morris, Welch, Hooper).

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J. G. W. Wenzel From the Department of Large Animal Surgery and Medicine, College of Veterinary Medicine, Auburn University, AL 36849 (Baird, Angel, Moll, Wolfe, Wenzel) and the Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center, College Station, TX 77843 (Morris, Welch, Hooper).

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Summary:

Case records of cattle admitted to 2 university veterinary hospitals during 6 years were evaluated to determine the age, breed, sex, and treatment of cattle with upward fixation of the patella. Affected cattle were compared with those from the respective hospital populations of cattle admitted during the same time.

Of 38 cattle with upward fixation of the patella, 34 were treated surgically. Follow-up evaluation was obtained from owners of 28 of the treated cattle. Surgery was successful in eliminating all clinical signs in 25 of the 28 cattle. There was an increased risk of upward fixation of the patella associated with Brahman and Brahman-type cattle, compared with non-Brahman cattle.

Summary:

Case records of cattle admitted to 2 university veterinary hospitals during 6 years were evaluated to determine the age, breed, sex, and treatment of cattle with upward fixation of the patella. Affected cattle were compared with those from the respective hospital populations of cattle admitted during the same time.

Of 38 cattle with upward fixation of the patella, 34 were treated surgically. Follow-up evaluation was obtained from owners of 28 of the treated cattle. Surgery was successful in eliminating all clinical signs in 25 of the 28 cattle. There was an increased risk of upward fixation of the patella associated with Brahman and Brahman-type cattle, compared with non-Brahman cattle.

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