P20. Can Extent of Adipose Tissue Washing Impact the Therapeutic Efficacy of Autologous SVF Cell Therapies?

Abstract

Within the conduit, CSPGs incorporated into a nanofiber hydrogel form an interpenetrating network. Using a TMR rodent hindlimb model, we tested the effects of this device with and without CSPGs on neuroma formation. RESULTS:The significant size mismatch at the coaptation site between the sciatic nerve and tibial branch to the lateral gastrocnemius muscle resulted in neuroma formation in the TMR group, while the use of the conduit resulted in tapered reinnervation of the sciatic nerve, demonstrating the effectiveness of this device in mechanically guiding axonal growth. Pain scores elicited by mechanical stimulation at the coaptation site were significantly lower in the CSPGconduit group as compared to the Neuroma, TMR, and Empty Conduit groups (p<0.0001), suggesting successful prevention of neuroma formation. CONCLUSION:This novel bioengineered conduit presents a biologically compatible, readily translatable means by which we could optimize TMR postoperative outcomes.