Ulnar head replacement and sigmoid notch resurfacing arthroplasty with a lateral meniscal allograft: 'calamari procedure'

Treatment Options for Distal Radioulnar Joint Arthritis: Balancing Functional Demand and Bony Resection

The distal radioulnar joint is a complex anatomic structure that allows for a combination of rotation and translation with extrinsic and intrinsic stabilizers that maintain stability through a delicate equilibrium. Traumatic, congenital, inflammatory, and degenerative processes can disturb this sensitive balance, resulting in distal radioulnar joint arthritis. We discuss the joint's anatomy and biomechanics and the clinical approach to the patient. We review the surgical treatment options, expected outcomes, and their shortcomings. Selecting the best surgical intervention often means choosing the procedure with the set of complications and limitations best suited for the specific patient.

Acute Distal Radioulnar Joint Instability: Evaluation and Treatment

This article reviews the anatomy and mechanics of pronation and supination (axial rotation) of the forearm through the distal radioulnar joint (DRUJ), and the proximal radioulnar joint (PRUJ). Injuries to the bones and/or ligaments of the forearm, wrist, or elbow can result in instability, pain, and limited rotation. Acute dislocations of the DRUJ commonly occur along with a fracture to the distal radius, radial metadiaphysis, or radial head. These injuries are all caused by high-energy trauma. Outcomes are predicated on anatomic reduction and restoration of stability to the DRUJ and PRUJ with or without ligamentous repair or reconstruction.

Ulnar head replacement and sigmoid notch resurfacing arthroplasty with minimum 12-month follow-up

Our study aimed to report the short-term outcomes of patients who underwent partial ulnar head replacement and distal radial ulnar joint interposition arthroplasty. From 2012 to 2016, nine patients underwent this procedure with mean follow-up of 27 months (range 12-55). Seven of the nine patients had previously undergone surgical intervention on the ipsilateral wrist. The procedure resulted in substantial improvements in pain and function. Mayo Wrist Score improved from 37 preoperatively to 73 postoperatively, and six patients achieved a good or excellent outcome. Visual analogue pain scores decreased from 7 preoperatively to 1 postoperatively. Grip improved from 20 kg preoperatively to 30 kg postoperatively. There was no significant change in wrist range of motion. Two patients underwent revision surgery to improve wrist motion. We conclude that over short-term follow-up the procedure provides a feasible option for distal radial ulnar joint arthritis. Level of evidence: IV.