Relevant anatomy and biomechanics The lunotriquetral interosseous ligament (LTIL) is C -shaped, similar to the scapholunate interosseous ligament (SLIL), and consists of true ligamentous dorsal and palmar subregions and an intervening fibrocartilaginous membranous portion. The palmar region is the thickest…
Relevant anatomy and biomechanics The scapholunate interosseous ligament (SLIL) is a C -shaped structure connecting the dorsal, proximal, and palmar surface between the scaphoid and the lunate, leaving the distal aspect of the joint bare. The SLIL has three subcomponents:…
Relevant anatomy and biomechanics Ulnar impaction can produce ulnar-sided wrist pain and can be related to ulnocarpal impaction (UCI) due to an ulnar-positive variance ( Fig. 5.1 ). Palmer et al. demonstrated that there was an inverse relationship between the…
Relevant anatomy and biomechanics Triangular fibrocartilage complex anatomy The triangular fibrocartilage complex (TFCC) consists of the articular disc, the meniscus homologue, the palmar radioulnar ligament (PRUL) and dorsal radioulnar ligament (DRUL), the extensor carpi ulnaris subsheath (ECUS), the ulnar capsule,…
Triangular fibrocartilage tears Relevant anatomy and biomechanics The triangular fibrocartilage complex (TFCC) has been well described. It consists of the articular disk, the meniscus homologue, the palmar radioulnar ligament (PRUL) and dorsal radioulnar ligaments (DRUL), the extensor carpi ulnaris subsheath…
Trapeziometacarpal joint portals Standard portals Menon initially presented his work on arthroscopy of the trapeziometacarpal joint (TMJ) as a meeting exhibit in 1994. He then published his experience with the arthroscopic management of trapeziometacarpal arthritis in 1996. He described two…
Introduction Since its inception, wrist arthroscopy has continued to evolve. The initial emphasis on viewing the wrist from the dorsal aspect arose from the relative lack of neurovascular structures and the familiarity of most surgeons with dorsal approaches to the…