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Biomedical subjects

S Dyson

Publications and source records attributed to S Dyson.

47 records · Page 3Linked to original sources
PubMed1986

Shoulder lameness in horses: an analysis of 58 suspected cases.

The results of a detailed investigation of 58 horses with suspected shoulder lameness are described. Lameness was found to originate distal to the shoulder region in 22 horses. No diagnosis was reached in five horses. Genuine shoulder problems occurred in 29 horses. The clinical signs of shoulder lameness are described and contrasted with lower limb lameness. The limitations of currently available diagnostic techniques are discussed. Problems identified in the shoulder region included osteochondritis dissecans, subchondral bone cysts, arthrosis, fracture, luxation, septic arthritis and soft tissue damage. Some of the differences between osteochondritis dissecans and subchondral bone cysts are described and it is suggested that these are two separate conditions.

Animals↗
PubMed1985

Sixteen fractures of the shoulder region in the horse.

The clinical and radiological features of fractures of the shoulder region in 16 horses are described. High quality radiographic views were essential for an accurate diagnosis. This sometimes necessitated general anaesthesia. The limitations of radiography are discussed. Nine horses had articular fractures of the supraglenoid tuberosity and eight of these were destroyed because of persistent lameness. The possibility of surgical removal of the fracture fragment(s) is discussed and the importance of early diagnosis emphasised. Seven other fractures of the shoulder region are described. The clinical outcome depended upon the location and nature of the fracture.

Animals↗
PubMed1983

Review of 30 cases of peritonitis in the horse.

Thirty cases of peritonitis, in which the diagnosis was based on a peritoneal fluid white blood cell count in excess of 10 x 10(9)/litre, are described. Colic, ileus, pyrexia, weight loss and diarrhoea were common presenting signs. Treatments included intravenous fluids, anti-inflammatory analgesics, broad spectrum antibiotics and anthelmintics. Duration of treatment was determined by the clinical condition of the horse and sequential analyses of the peritoneal fluid and the haemogram. In the majority of cases the primary cause of peritonitis was not accurately determined, but 21 horses (70 per cent) recovered. All the horses with diarrhoea were killed after marked deterioration in their clinical condition despite intensive treatment. No individual laboratory parameter was of value in determining prognosis, although of the eight (27 per cent) horses from which bacteria were identified in the initial peritoneal fluid by Gram stain, four (50 per cent) were subsequently killed.

Animals↗
PubMedDate not supplied

Proximal suspensory desmitis in the hindlimb: 42 cases.

Proximal suspensory desmitis of the hindlimb was diagnosed using local analgesic techniques and ultrasonography in 42 horses. Subtarsal analgesia resulted in substantial improvement in lameness in 36 of 41 horses in which local analgesic techniques were used. In the remaining five horses lameness was improved by perineural analgesia of the tibial nerve (three) or the tibial and fibular nerves. Intra-articular analgesia of the tarso-metatarsal joint produced a similar degree of improvement in two of 24 horses in which lameness had been improved by subtarsal analgesia. Ultrasonographic abnormalities of the proximal one third of the suspensory ligament of the lame limb only were detected in 36 of the 37 unilaterally lame horses. Abnormalities were detected in both suspensory ligaments in the five bilaterally lame horses and in one horse with unilateral lameness. Radiographic abnormalities of the proximal aspect of the third metatarsal bone of the lame or lamer limb were detected in 23 horses. Four horses have been in full work for more than 1 year without recurrent lameness. Two other horses resumed full work but had lameness due to another cause. Six horses are in light work despite mild lameness. Sixteen horses have been retired or humanely destroyed due to persistent or recurrent lameness.

Animals↗