Weight-bearing Lameness Research Articles

Unusual Case of a Fractured Anconeal Process in a Boxer

SummaryAn acute weight-bearing lameness in the left front limb following a slight trauma happened in a male, one-year-old Boxer. Clinical and radiographic findings suggested a fractured anconeal process.Such a fracture after mild trauma is uncommon and indicates the possibility of a disorder in the area of the growth plate between anconeal process and ulna. Therefore this case could be related to the complex of the ununited anconeal process, too.A one-year-old Boxer sustained a fracture of the anconeal process following a mild trauma. This case might be related to the complex of the ununited anconeal process.

Chronic bicipital tenosynovitis in dogs: 29 cases (1985-1992)

Summary Medical records of 23 dogs with unilateral and 3 dogs with bilateral chronic bicipital tenosynovitis were reviewed. Mean age of affected dogs was 4.6 years (SD, 2.0 years), and mean body weight was 32.6 kg (SD, 14.5 kg). Neither a breed nor a gender predilection was detected. All dogs had a history of intermittent or progressive weight-bearing lameness that became worse after exercise. Mean duration of lameness prior to medical or surgical treatment was 6.5 months (range, 0.25 to 24 months), in all dogs, signs of pain were evident during palpation of the biceps tendon within the intertubercular groove. Radiography revealed sclerosis or osteophytosis of the intertubercular groove in all 29 shoulder joints. Mild degenerative joint disease was evident rudiographicully in 17. Arthrography was performed in 12 joints, and in 11 there were irregularities of or filling defects along the biceps tendon. Arthrocentesis was performed on 17 joints; 14 synovial fluid samples had cytologic abnormalities consistent with degenerative joint disease. Medical treatment, consisting of injection of methylprcdnisolone acetate into the biceps tendon and its synovial sheath, was attempted in 21 of the 29 affected shoulder joints. Surgery, which consisted of tenodesis of the biceps tendon, was attempted in 14 joints; S of these had not been treated medically; the remaining 6 had poor results following medical treatment. Gross and histologic findings consistent with chrome bicipital tenosynovitis were observed in all 14 joints in which surgery was performed. Seventeen of the medically treated shoulders were available for clinical evaluation, and results were excellent or good in 7. Twelve of the surgically treated shoulders were available for clinical re-evaluation, and results were excellent or good in all 12 (mean duration of follow-up, 5.7 months; range, 2 to 13 months). Owners of all dogs were contacted by telephone. Owners reported that results were excellent or good in 1.0 of the 21 medically treated shoulder joints, and in ail 14 of the, surgically treated shoulder joints (mean duration of follow-up, 30.1 months; range, 4 to 82 months). Complications developed in 3 of the 4 dogs in which an osteotomy of the greater tubercle had been performed (implant migration, 2 dogs; delayed union, 1 dog). A seroma developed in 1 of the 10 dogs in which tenodesis was performed by laterally transposing the biceps tendon through a hole in the greater tubercle. Complications related to medical treatment were not detected.

Quantification of weightbearing lameness by accelerometric measurements at the head of the horse

Quantification of weightbearing lameness by accelerometric measurements at the head of the horse

Osteochondral Fragmentation (Osteochondrosis) of the Canine Patella

SummaryThree four-month-old female grey-hound siblings with osteochondral fragmentation of the lateral aspect of the patella are presented. One dog was affected unilaterally and two bilaterally. The dogs exhibited mild weight-bearing lameness, slight flexion of the stifle, and discomfort during full flexion and extension of affected stifles. A non-palpable, mild synovial effusion was cytologically consistent with chronic inflammation and compatible with osteochondrosis and degenerative joint disease. The hallmark clinical sign was a characteristic prominence of the patella. Cranioproximalcraniodistal oblique (skyline) radio-graphs and transverse CT scans revealed osteochondral fragments and defects of the patella. The osteochondral fragments were surgically excised in two dogs and one dog was necropsied. The osteochondral fragments and patellae were evaluated histologically. Macroscopic and microscopic features of the osteochondral tissues were characteristic of osteochondrosis.Osteochondrosis of the patella was diagnosed in three sibling Greyhounds. The hallmark clinical sign was enlargement and prominence of the patella. Radiographic examination, cranioproximal-craniodistal oblique view, demonstrated the fragmented lateral border of the patella. Findings from computed tomography and histopathological examination are described. Surgical excision of the fragment in two dogs restored satisfactory function.