Effect Of Costal Perichondrium On Biomechanics Of Transplanted Costicartilage In Rabbits

Objective To study the differences of the cartilage with and without the perichondrium after autologous ectopic transplantation in healthy rabbits, in order to offer theory reference for clinic to make the best use of cartilage.Methods6rabbits at the age of six weeks. Each of them the sixth, seventh, and eighth costal cartilages with perichondrium were removed, and divided into two segments at the even length, one segment with perichondrium and the other non-perichondrium. They were buried under the skin of the back at bilaterally symmetrical parts. Two different groups of cartilages were took out after12weeks and removed the perichondrium of the cartilages that had it previously. Tensile, compressive and flexural tests were conducted by using SHIMADZU material testing machine.Results The average maximum strength and the strain of tension, compression and flexion of the perichondrium group were higher than those in the non-perichondrium group (P<0.05)Conclusion Biomechanics of costicartilage with perichondrium are superior to those without it after autologous ectopic transplantation.