Fig. 1From: Arthroscopic treatment of stable nonunion, unstable nonunion, or nonunion of the scaphoid with early degenerative radioscaphoid arthritisA Consolidated Standards of Reporting Trials flow diagram shows enrollment and analysis of this study. *Unstable nonunion defined as (1) Sclerosis, cystic change, or gapping and/or translation of more than 2 mm. (2) Lateral intrascaphoid angle (ISA) of more than 60°. (3) Radiolunate angle (RLA) of more than 10°; and. (4) Scapholunate angle (SLA) of more than 60° in preoperative radiographsBack to article page