Lameness in Pet Pigs

Conformation concerns
Leg length – good length of leg	Leg length – too short
Leg angle
Good leg angle – good foot wear	Dropped pasterns, supernumerary digits are in contact with floor
Inversion of the foot – varus weight moved to the lateral foot
Toes point outwards – valgus – lateral deviation – weight moved to the medial foot
Problems seen particularly with angular deformities
Screw toes
Rolled hoof wall
Other toe and lower leg deformities
Splaying of toes	Genetic abnormalities – mule foot
Uneven toes, enlarge lateral toe	Toes overgrowth
Hoof craw, from coronary band.	Corn – swollen heel
Overgrowth of supernumerary digit
Interdigital growth	Interdigital abscess

General locomotor problems
Arthritic pig – middle aged	X ray of an arthritic limb
OCD in a growing pig	OCD lesions – these can be very common
Infected leg following trauma as shown at postmortem – another pig stood on the leg
Paralysis of the hind legs occurs due to a number of reasons – example shown was a invasive lymphoma growing adjacent to the spinal column - arrow

Control: Providing good a hoof environment
Muddy paddocks make for soft feet	Poor welfare conditions, often related to poor foot care
Straw can be very clean but is none wearing	An area of screenings will allow the pig’s feet to wear more normally
Treatment
Trimming while conscious	Trimming under anaesthesia