Biomedical subjects
P M Webbon
Publications and source records attributed to P M Webbon.
Management of intracortical fractures of the palmaroproximal third metacarpal bone in a horse by surgical forage.
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The racing performance of horses with tendon lesions treated by percutaneous tendon splitting.
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Radiological refresher--10. Bone tumours.
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The genetic control of Perthes' disease in toy poodles--a working hypothesis.
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Limb skin thermometry in racehorses.
Skin temperature measurements were recorded of the legs of 13 racehorses between 2 and 5 years old. The normal limb temperature patterns are described. In over 90 per cent of the normal horses the difference between contralateral limbs was less than 1 degree C, but in the remainder differences of up to 8 degree C were recorded due to the excessive cooling of one limb. One horse had a constant temperature elevation of one foreleg, but it remained in training for 7 weeks without any obvious ill effects. Because of the small numbers of horses in the survey and their freedom from tendon injuries it was not possible to draw any conclusions about the efficacy of thermometric screening in the early diagnosis of tendon injuries.
A histological study of macroscopically normal equine digital flexor tendons.
The normal appearance of the superficial (SFT) and deep (DFT) digital flexor tendons was described and the difference between their histological structures was emphasised. Further differences were recognised between different sites from the same tendon and between tendons in the fore and hind limbs of the same animal. Both of the tendons underwent changes with age but although a number of alterations in the histological appearance were described, a particular change, involving a patchy loss of stainable nuclei, was found at the common site of SFT injuries. While this appearance has been seen in injured tendons and described as tendon necrosis, the author warns that no cause and effect relationship has been established between the acellularity and the clinical lesions. Neither is it certain that the loss of tendon cells results in mechanical weakness of the tendon.
The influence of anaesthesia on bronchography in dogs.
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A post mortem study of equine digital flexor tendons.
The results of a survey are presented in which 589 limbs from 206 horses were dissected. In174 of the limbs lesions were found in either the superficial (131) or deep (43) digital flexor tendons. Changes occurring with age were also recorded. The sites of the abnormalities and their macroscopical appearance are described and the value of the results is considered in relation to the diagnosis and the treatment of clinical lesions.
Atrophic rhinitis: the value of radiography for diagnosis in piglets.
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