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Peroneal Paralysis in Cattle

By

Paul R. Greenough

, FRCVS, Western College of Veterinary Medicine, University of Saskatchewan

Last full review/revision Sep 2015 | Content last modified Sep 2015

Peroneal paralysis results in paralysis of the muscles that flex the hock and extend the digits.

Clinical Findings:

The peroneal nerve is the cranial division of the ischiatic nerve. It passes superficially over the lateral femoral condyle and the head of the fibula, which makes it vulnerable to external trauma or pressure from recumbency. An affected animal stands with the digit knuckled over onto the dorsal surface of the pastern and fetlock. The hock may appear to be overextended. In mild cases, the fetlock tends to knuckle over intermittently during ambulation; however, this may also occur if the animal is experiencing pain in the heels.

In severe cases, the dorsal surface of the hoof may be dragged along the ground, and sensation to the dorsum of the fetlock is often decreased. Testing of reflexes may demonstrate that hock flexion is absent, but stifle and hip flexion are normal. This would not be the case if the ischiatic nerve was involved.

Treatment:

Most cases resolve naturally. However, if the condition is associated with long periods of recumbency, care must be taken to avoid exacerbation of the initial injury.

OTHER TOPICS IN THIS CHAPTER

Lameness in Cattle
Overview of Lameness in Cattle
Physical Examination of a Lame Cow
Locomotion Scoring in Cattle
Computerized Recording of Digital Lesions in Cattle
Distal Digital Anesthesia for Diagnostic and Surgical Procedures in Cattle
Radiography in Cattle
Arthrocentesis and Arthroscopy in Cattle
Risk Factors Involved in Herd Lameness of Cattle
Footbaths of Cattle
Functional Claw Trimming of Cattle
Prevalent Lameness Disorders in Intensively Managed Herds of Cattle
Digital Dermatitis in Cattle
Pododermatitis Circumscripta in Cattle
White Line Disease in Cattle
Toe Necrosis Syndrome in Cattle
Sole Hemorrhage in Cattle
Thin Sole in Cattle
Heel Erosion in Cattle
Other Disorders of the Interdigital Space in Cattle
Interdigital Dermatitis in Cattle
Interdigital Phlegmon in Cattle
Interdigital Hyperplasia in Cattle
Disorders of the Horn Capsule and Corium in Cattle
Laminitis in Cattle
Double Sole in Cattle
Foreign Body in Sole of Cattle
Vertical Fissures in Cattle
Horizontal Fissures in Cattle
Corkscrew Claw in Cattle
Slipper Foot in Cattle
Disorders of the Bones and Joints in Cattle
Ankylosing Spondylosis in Cattle
Degenerative Arthropathy in Cattle
Coxofemoral Luxation in Cattle
Patellar Luxation in Cattle
Fetlock Dislocation in Cattle
Hip Dysplasia in Cattle
Fractures in Cattle
Septic Arthritis of the Distal Interphalangeal Joint in Cattle
Serous Tarsitis in Cattle
Neurologic Disorders Associated with Lameness or Gait Abnormalities in Cattle
Suprascapular Paralysis in Cattle
Radial Paralysis in Cattle
Ischiatic Paralysis in Cattle
Obturator Paralysis in Cattle
Femoral Paralysis in Cattle
Peroneal Paralysis in Cattle
Tibial Paralysis in Cattle
Spastic Syndrome in Cattle
Spastic Paresis in Cattle
Soft-tissue Disorders Causing Lameness in Cattle
Carpal Hygroma in Cattle
Rupture of the Gastrocnemius Muscle in Cattle
Rupture of the Peroneus Tertius Muscle in Cattle
Tarsal Cellulitis in Cattle
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Musculoskeletal Disorders in Large Animals
A seven-year-old Quarter horse gelding presents with a 1-week history of mild lameness. During the examination, the horse raises his head as he places weight on his left forelimb and drops it when placing weight on the right forelimb. Which limb is most likely affected in this horse?
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