Endoscopic cubital tunnel release. A, Incision. B, Spatula used to open space between ulnar nerve and roof of canal (fascia). C, Trocar/cannula placed into canal. Attached retractor slides on external surface of fascia elevating superficial nerves. D, Ulnar nerve seen through inferior slots of cannula. E, Roof of canal (fascia) is divided with blade along superior slot of cannula. Inset shows arthroscopic view of ulnar nerve as fascia is being divided through superior slot. SEE TECHNIQUE 77.6.