VSR 421: Regional Veterinary Surgery (2+1)

 CONTUSIONS , SINUS AND FISTULA

Etiology

• Contusions : similar to fracture.
• Sinuses on  the root of the tooth results in the formation of dental fistula.

Symptoms

• Similar to  acute / chronic traumatic inflammation / of a sinus/ fistula in the bone.
• A sinus in the bone is characterized by a suppurating orifice surrounded by a hard inflammatory enlargement.

Treatment

• When the  sinus is  in the mouth, dilate the opening - the sinus tract  and remove loose bone and curette the bone.
• When there is an external sinus into the bone, remove ellipitical piece of skin around its orifice and enlarge it by trephining and irrigate with iodine  and dressed with iodoform/BIPP ( Bismuth subnitrous iodoform paraffin paste).

Open wounds

• Attention needs to be paid in open wounds of the jaw only when they are complicated by infection/necrosis of bone.

Tumors

• Upper jaw is most commonly affected than the lower jaw. Horse and dogs are frequent victims.