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  • Title: [Arthroscopy of the distal radioulnar joint].
    Author: Pillukat T, Fuhrmann R, Windolf J, van Schoonhoven J.
    Journal: Oper Orthop Traumatol; 2014 Dec; 26(6):547-55. PubMed ID: 25452090.
    Abstract:
    OBJECTIVE: Insertion of a small joint arthroscope into the proximal and distal parts of the distal radioulnar joint (DRUJ) allows visualization of the proximal pouch of the DRUJ, the joint surfaces of the sigmoid notch and the ulnar head, the convexity of the ulnar head and the proximal ulnar-sided surface of the triangular fibrocartilage complex (TFCC). INDICATIONS: Evaluation of joint pathologies in ulnar-sided wrist pain, especially in cases without diagnostic findings in standard X-rays and MRI, suspected cartilage lesions without osteochondral changes (signs of osteoarthritis), undefined swelling of the DRUJ in suspected synovitis, removal of loose bodies and arthroscopical synovialectomy, suspected lesions of the deep part of the TFCC, respectively foveal avulsions, wear or superficial tears of the proximal TFCC and arthroscopic-assisted ulnar shortening. CONTRAINDICATIONS: Significant changes of the local topographical anatomy, extensive scar formation, ulna plus variance, local infection or open wounds, affected sensibility in the area of the dorsal branch of the ulnar nerve, fractures of the sigmoid notch or the ulnar head, capsular tears causing effusion of irrigation fluid. SURGICAL TECHNIQUE: In vertical extension of the wrist, two portals are created on the dorsal side of the DRUJ between the extensor digiti minimi and extensor carpi ulnaris tendons. Partial visualization of the ulnar head, the sigmoid notch, the proximal pouch of the DRUJ, and the proximal surface of the TFCC. POSTOPERATIVE MANAGEMENT: Following isolated diagnostic arthroscopies immobilization of the wrist in a semicircular ulnar-sided cast for 1 week. No extensive load to the wrist for 4 weeks. RESULTS: Still rarely performed procedure for diagnosis and therapy of ulnar-sided wrist pain. Technically demanding with a flat learning curve and anatomy-related obstacles. A complete view of the joint is not always accessible. Rare complications are injuries of the extensor digiti minimi tendon as well as contusion or sectioning of the transverse branch of the dorsal branch of the ulnar nerve. In distinct cases this procedure offers valuable additional information about the distal radioulnar joint.
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