Ulnar Shortening Osteotomy in Idiopathic Ulnar Impaction Syndrome

Baek, Goo Hyun; Chung, Moon Sang; LEE, YOUNG HO; Gong, Hyun Sik; Lee, S.; KIM, HYUNG HO

doi:10.2106/00004623-200609001-00006

Cited by 26 publications

(1 citation statement)

References 13 publications

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“…A positive UV is a known risk factor for UIS because it increases the load on the ulnocarpal joint [ 20 , 21 , 22 ]. Palmar et al reported that an increase of 2.5 mm UV increased the axial load in the ulnocarpal joint to 42%, while a decrease of 2.5 mm UV decreased the axial load to 4.3% [ 23 ].…”

Section: Discussionmentioning

confidence: 99%

Ulnar-Sided Sclerosis of the Lunate Does Not Affect Outcomes in Patients Undergoing Volar Locking Plate Fixation for Distal Radius Fracture

Baek,

Lee,

2023

JCM

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Background and aim: Radial shortening after distal radius fracture causes ulnar impaction, and a mild reduction loss of radial height occurs even after volar locking plate fixation. This study aimed to determine whether preoperative ulnar-sided sclerosis affects clinical outcomes after volar locking plate fixation for distal radius fracture (DRF). Method: Among 369 patients who underwent volar locking plate fixation for DRF, 18 with preoperative ulnar-sided sclerosis of the lunate were included in Group A and compared to a 1:4 age-, sex- and fracture-pattern-matched cohort without sclerosis (72 patients, Group B). The visual analog scale (VAS), Disabilities of the Arm, Shoulder, and Hand (DASH) score, and grip strength were assessed as clinical outcomes. Ulnar variance (UV), radial inclination, radial length, and volar tilt at two weeks after surgery and the final follow-up were measured as radiographic outcomes. Results: The mean VAS and DASH scores and grip strength did not differ between the two groups. The mean UV at two weeks after surgery and the last follow-up was significantly higher in Group A. The mean changes in UV were +0.62 mm in Group A and +0.48 mm in Group B. There were no significant intergroup differences. Neither UV nor its changes showed any association with DASH and VAS scores. Conclusions: Preoperative ulnar-sided sclerosis of the lunate did not affect clinical outcomes after volar locking plate fixation, even if UV increased postoperatively.

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