Malunion of the Distal Radius

Corrective Osteotomy for Deformity of the Distal Radius Using a Volar Locking Plate

“…When the deformity exceeds these parameters, wrist dysfunction follows certain patterns. With increasing dorsal angulation, biomechanical studies have demonstrated increasing force concentration on the radioscaphoid, radiolunate, and ulnocarpal articulations [3]. Clinically, patients may develop dorsal carpal subluxation or an adaptive DISI pattern [27].…”

“…For the distal radius, normal radiographic values are typically cited as 11°of volar tilt, 22°of radial inclination, neutral ulnar variance, and a congruent radiocarpal articulation [3,10]. The acceptable ranges of these parameters are typically cited as up to 15°o f dorsal radial tilt or 20°of volar tilt, a 15°change in radial inclination, 4 mm of ulnar variance, and 2 mm of articular step-off.…”

Isolated Ulnar Shortening Osteotomy for the Treatment of Extra-Articular Distal Radius Malunion

“…1 Distal radius malunion is a common complication that may result in wrist pain, loss of wrist and forearm motion, and decreased grip strength, leading to varying degrees of disability. [2][3][4][5][6] Multiple surgical treatments for distal radius malunion have been described, including closing and opening wedge osteotomies of the radius. When successful, these operations provide functional improvement for patients.…”

Evaluation of Corrective Osteotomy of the Malunited Distal Radius on Midcarpal and Radiocarpal Malalignment

“…We used standard techniques of measurements here, as well. 4,9,10 We calculated ERLF by the formula: ERLF ϭ Dorsal tilt ϩ 11°(mean volar tilt) ϩ RLA. ERLF measures the movement of the lunate that has occurred as a result of fracture displacement.…”