Objective—To determine milk flow, somatic cell
counts (SCCs), and the incidence of clinical mastitis in
cows that had undergone theloresectoscopy for treatment
of teat stenosis caused by mucosal detachment
in the region of the streak canal or Fürstenberg's
Animals—52 cows with teat stenosis that were
treated via theloresectoscopy.
Procedure—Medical records of eligible cows were
reviewed. Additional data regarding milking ease,
SCC, development of clinical mastitis of the affected
gland, and whether the cow remained in the herd
were collected via owner-completed questionnaires.
Results—49 of 52 questionnaires were completed.
At referral, teat sinusitis was diagnosed in 29 of 52
cows. Milk flow was normal in 38 of 41 treated teats
at discharge and in 24 of 40 during the next lactation.
Thirteen of 49 cows were culled during the next lactation
because of abnormal udder health. High SCC
and teat sinusitis at referral and development of clinical
mastitis during the 10-day period after surgery
resulted in high SCCs in the remainder of the current
lactation. The incidence of clinical mastitis during the
remainder of the current and during the next lactation
was higher in cows that had teat sinusitis at the time
of surgery, compared with those that did not.
Conclusions and Clinical Relevance—Teat stenoses
resulting from mucosal lesions in the region of the
streak canal or Fürstenberg's rosette may be successfully
treated via theloresectoscopy. Inflammation
of the teat sinus and gland at the time of surgery may
adversely affect udder health. (J Am Vet Med Assoc 2005;226:1119–1123)