Gastric seromuscular autogenous graft for oesophagoplasty in dogs: Mechanical and histomorphologicai study

Experimental oesophagoplasty with free gastric seromuscular graft was performed in twelve dogs. Breaking strength, tensile strength, extensibility and energy absorption showed gradual increase upto 60th day. His-topathological and histochemical studies revealed early infiltration of polymorphonuclear leukocytes and lymphocytes followed by gradual increase in collagenous fibres. Epithelialization of graft was completed by 30th day. On 60th post-operative day stratified epithelium was observed at the grafted site but oesophageal glands were not evident in this region.