Implante de tendão autógeno do músculo flexor superficial dos dedos no reparo de desvio do pênis de bovinos

Abstract

Dezoito novilhos mestiços, com idade entre 16 e 20 meses, foram submetidos à remoção do ligamento apical do pênis para provocar o seu desvio. Decorridos 60 dias os animais foram colocados em presença de fêmeas em estro, sendo verificado formação de desvios ventral e lateral direito do pênis, com incapacidade de cópula. Os bovinos foram submetidos ao transplante autólogo de um segmento do tendão da porção superficial do músculo flexor superficial dos dedos, sobre a túnica albugínea, substituindo o ligamento apical do pênis removido. Observou-se a presença de poucas células mononucleares, polimorfonucleares e células gigantes e formação de tecido conjuntivo fibroso, ocasionando aderências resistentes e capacidade de sustentar a extremidade livre do pênis. Os bovinos, quando em presença de fêmeas em estro, não apresentaram desvio de pênis e modificações do comportamento sexual. A técnica mostrou ser eficaz, podendo ser indicada para corrigir desvio de pênis ventral e lateral de bovinos.

Use of chitosan and polypropylene for the surgical correction of penile deviation in bulls: clinical and histological aspects

“…The successful experimentally induced penile deviation through removal of a fragment of the penile apical ligament of the bulls highlights the importance of this structure in the pathogenesis of this disease (Eurides et al 2007). A higher incidence of right lateral (62%) versus ventral (38%) deviation, as observed in this study, was also previously reported for the experimental induction of penile deviation by means of a section of the apical ligament (Eurides et al 1994).…”

“…This event was observed whit the use of autologous tendon of the superficial flexor muscle and autologous auricular cartilage in bulls to repairing penile deviation (Eurides et al 2007, Eurides et al 2009.…”

“…The penile tegument was sutured with no. 00 chromic catgut string in a simple interrupted pattern (Eurides et al 2007). Three injections of long acting oxytetracyclin suspension (200 mg/mL) at a 20 mg/kg q48 h intramuscularly were administered.…”

“…The latter approach has been receiving attention lately due to its lower cost and decreased potential to induce inflammation and rejection response (Fitzgerald 1963, Ashdown 2006, Eurides et al 2007.…”

“…Accepted: 24.05.2012. * Campus Jataí, Caixa Postal 3, BR 364, km 192, Zona Rural, CEP 75800000, Jataí, Goiás, Brasil;aloisiosv@hotmail.com There are few studies on the clinical and histological behaviour of implants employed for the correction of premature penile deviation in bulls (Eurides et al 1994, Eurides et al 2007, Eurides et al 2009. Tissue substitutes with characteristics such as stability, compatibility with receptor, low cost and easy sterilization and application are quite attractive for conduction of new studies in this area.…”