“…In this context, the radiocarpal (RC) joint offers the most suitable alternative, being larger and containing a greater amount of synovium [ 8 , 12 ]. Usually, access to the RC joint, whether to perform intra-articular injections [ 13 ], arthroscopies [ 14 ], or synovial biopsies [ 15 ], is performed between the extensor tendons compartments III and IV, IV and V, and V and VI on the dorsal side. Nonetheless, in our experience, the anatomical characteristics of the RC joint and the course of the various periarticular structures, particularly the tendons, may condition the path and the inclination of the surgical instrument within the joint cavity, with the possibility that part of the synovial surface remains unreachable.…”