Year: 2024 | Month: June | Volume: 11 | Issue: 6 | Pages: 837-843
DOI: https://doi.org/10.52403/ijrr.20240690
Correlation Between Radial Height, Radial Inclination, Volar Tilt, and Radius Union Score System (RUSS) on Modified Mayo Wrist Score (MMWS) In Patients with Distal Radius Fractures Three Months Post Conservative Therapy
Nariswari Anggapadmi Wiraputri1, Ketut Siki Kawiyana2, Made Bramantya Karna3
1Resident of Orthopaedics and Traumatology Department, 2Consultant of Orthopaedics and Traumatology Department,
Faculty of Medicine, Udayana University, Prof. Dr. I.G.N.G. Ngoerah General Hospital, Denpasar, Indonesia
Corresponding Author: Nariswari Anggapadmi Wiraputri
ABSTRACT
Introduction: Distal radius fractures are one of the most common injuries in orthopedics and conservative management is still the most frequently used treatment. Conservative treatment with closed reduction may still leave deformity that can be evaluated from several radiological parameters. However, of the many existing radiological parameters, there is no parameter that has become a standard for assessing good function. This study aims to determine the relationship between radiological parameters (radial inclination, radial height, and volar tilt) and the Radius Union Score System (RUSS) on the functional outcomes of patients with distal radius fractures at 3 months after conservative therapy.
Methods: Thirty-five patients with distal radius fractures with age range of 18-65 years at Prof. Ngoerah General Hospital Denpasar who were managed conservatively with closed reduction and short/long arm cast immobilization were evaluated 3 months after therapy. Functional outcomes were evaluated using the Modified Mayo Wrist Score (MMWS) and evaluation of radiological parameters including radial height, radial inclination, volar tilt, and RUSS. The data analysis used was the Pearson and Spearman correlation test to assess the relationship between radiological parameters and RUSS with functional outcomes and the linear regression test to assess the parameters that had the strongest relationship with a significance value of p < 0.05.
Results: There is moderately significant positive correlation between radial height and volar tilt on MMWS with r values respectively 0.504 and 0.401 (p = 0.020, 0.017); a weak positive correlation between radial inclination and MMWS (r = 0.365, p = 0.031). Moderate positive correlation was also found between RUSS and MMWS (r = 0.544, p = 0.001). With the linear regression test, it was found that the influence of the three radiological parameters was 37.3% on MMWS (R2 = 0.373). The linear regression F test shows that the three radiological parameters have a significant effect with a value of p = 0.002 (p < 0.005). However, in the t test it was found that radial inclination was not significant to MMWS (p = 0.350) while radial height and volar tilt were significant to MMWS (p = 0.049, 0.015).
Conclusion: Radial height, radial inclination, volar tilt, and RUSS have a positive correlation with the functional outcome of distal radius fracture cases. Radial height and volar tilt are the radiological parameters that have the most influence in patients with distal radius fractures in observation 3 months after conservative therapy.
Keywords: distal radius fracture, conservative therapy, radial height, radial inclination, volar tilt, RUSS, MMWS
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