Quittor IN EQUINES

Quittor IN EQUINES

1. Topic Quittor

2. Q u i t t o r Q u i t t o r d e s c ribe c h o n i c , p u r u l ent inflammation o f t h e c o l l a t e r a l ( u n g u a l ) c o r t i l a g e o f t h e d i s t a l p h a l a n x .

3. Q u i t t o r s i g n a l m e n t L a t e r a l c o r t i lage o f t h e f o r e l i m b i s m o s t c o m m only effect e d . History o f r e o c curr ing d r a i n a g e f r o m f i s t u l o u s t r a c t s t h a t o v e r l y t h e a f f e c ted c a r t i lage .

4. Q u i t t o r _ c l i n i c a l s i g n A b c e s s e s f o r m a t i on i n t h e c o l l a t e r a l c o r t i l age . B r e a k o p e n and d r a i n proximal t o c o r o n a r y b a n d O w n e r n o t e t h e d r a i n a g e f r o m f a s t u l o u s t r a c t O f t e n h i s t ory o f i n t e r m i ttent , s e v e r e lameness .

5. Q u i t t o r _ c l i n i cal s i g n D e g r e e o f lameness i s v a r i a ble . P a t e n c y o f F i s t u l o us d r a i n a g e t r a c t = l e s s s e v e r e lameness . N o n _ p a t e n t = n o d r a i n a ge o f a b c e sses = m o r e s e v ere l a m e ness P a i n o n h o o f t e s t e r o ver e f f e c t e d q u a r t e r . C h r o nic i n f l a mmation m a y l e a d t o p a r m a n e n t f o o t d a m a g e = deformities i n h o o f a n d s o f t t i s s u e .

6. Q u i t t o r _ E t i o logy D i r e c t t r a u ma t o c a r t i l a g e o r s o f t t i s su e o v e r l i n g c a r t i lage . P e n e t r a t i n g w o u n d a n d l e c e r a t i o n s B l u n t t r a u m a > l e c e ration > d a m a g e s b l o o d supply . F o o t a b c e sses . C h r o nic a s c e n d i ng i n f e c tion o f t h e w h i te l i n e i n q u a r ters . D e e p h o o f c r a k e s .

7. Q u i ttor _ d i a g nosis R e c u r r ent s w e l l ing o f t h e c o l l a teral c a r t i lage . 1 + f i s t u lous t r a c t s p r o x i mal t o c o l l a teral c a r t i lage . S w e l l ing a n d p a i n o v e r c o l l a teral c a r t i l a ge . H o o f t e s t e r s e n s i tive o v e r a f f ected quarter .

8. Q u i ttor _ d i a gnosis N e e d t o d i f f e r entiate between s h a l l ow a b c e s ses a n d a s c e nding i n f e ction o f t h e w h i te l i n e ( g r a v e l ) : G r a v e l : i n f l a m mat ory p r o c e ss is o f t e n l o c a l i z e d , o n e f i s t ulous t r a c t . Q u ittor : i n f ormat o r y p r o c ess i s m o r e d i f u s e , multiple f i s t ulous t r a c t s .

9. Q u i ttor _ imaging R a d i o g raph s : U s e f u l t o r u l e o u t b o n e i n v o l v e m ent . H o w e ver l y s i s o f c o l l a teral c a r t ilage f r o m infection c a n 't b e e n o n r a d i o graph . I f c o l l a teral c a r t ilage h a s o s s i f i ed , c a n s e e e v i dence of o s t e o m y e l i t i s . C a n d e t e r mine Dept h a n d d i m e n sion of d r a i n ag i n g t r a c t u s i ng f i s t u lo g r a p h y ( f l e x ible s t e r i l e p r o b e ) .

10. Q u i ttor _ t r e a tment T r e a tment o f c h o i ce i s s u r g i c a l e x c i s ion of n e c r o t i c c o l l a teral c a r t ilage f i s t ulous t r a c t s .

11. Surgery to remove the diseased tissue and cartilage is usually successful Local or parenteral (injection or infusion) therapy (or both) without surgery is likely to fail If distal interphalangeal joint has been invaded, the prognosis is unfavorable It is seldom encountered today but used to be common in working draft horses Quittor _ treatment

12. Q u i t tor _ t r e a t ment M e d i c a l management i n c l ude 1. t o p i c a l antibbiotic eg. polymixin B, neomycin, bacitracin 2. s y s t e matic a n t i b iotic s eg. tetracycline, doxycycline (Vibramycin), minocycline (Minocin) and erythromycin. 3. f o o t s o a k s 4. i n j e ction i n f i s t ulous t r a c t s w i th a n t i s eptic .

13. Q u i ttor _ s u r g e ry Hold toe in rigid extension by drilling holes in hoof wall>thread wire through holes> place traction on foot to maintain extension. Tenses joint capsule and and retract it from surgical plane. Decreases chances of entering distal inter - phalangeal joint. Curve incision over affected cartilage reflected proximally. Necrotic tissue will be dark blue or red in colour. Close incision primarily and place foot in foot cast or bandage

14. Q u i ttor _ p r o g n o sis P r o g n osis i s e x c ellent w h e n c o m plete r e m o v a l o f n e c r o tic t i s s ue i s a c h i eve d . 2 n d r y complications r e d u c e p r o g nosis : O s t e o m y e l i t is o f d i s t a l p h a l a n x . S e p t i c a r t h r i tis o f d i s t a l i n t e r - p h a l a n g e a l j o i n t . I n f e c tion o f d i s t a l c u s h i on o r o t h e r s u r r o und ing s o f t t i ssue s t u c t u r e .

15. THANK YOU