In 2007 Professor Isidor Kessler passed away at the age of 81. It is now 11 years since his passing away. Professor Kessler was the forefather of the field of Hand Surgery in Israel and a world-renowned pioneer in the field of tendon repair. The foundations he lay in his work still guide us today. The concepts of suture strength, repair mobilization and enhanced intrinsic repair are entwined in his and other researchers work. We present a brief history of the founder of our department, Professor Isidor Kessler, his history and his work and relate it to future directions in tendon repair. The avid modern tendon surgeon must use these basic concepts in tendon repair. And, moreover, we present new interpretations to these concepts which we believe should be embraced by tendon researchers and surgeons by and wide..