Experimentally in dogs and clinically in human beings, tunica vaginalis has been found to be a suitable membrane for covering raw surfaces in arthroplasty of the smaller joints.
The secreting surface of the tunica vaginalis is turned toward the joint cavity and the fibrous elastic layer is placed against the denuded bone surface.
It is believed that, in male patients, the tunica vaginalis is the most satisfactory interposing membrane which can be used in arthroplasty of the small joints.