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Abstract
Purpose:
The purpose of this study is to evaluate efficacy of percutaneous pinning of distal radioulnar joint in patient with distal radius fracture.
Methods:
Thirty-eight patients who underwent percutaneous pinning and external fixation for distal radius fracture were included in this study. Radiologic and clinical outcomes were compared between the patients who underwent percutaneous pinning on the radius only (PD group) and the patients with supplementary pinning on distal radioulnar joint (DRU group) after percutaneous pinning on the radius. External fixation was performed in all patients.
Results:
Twenty-three patients were PD group and fifteen patients were DRU group. Radial height and radial inclination was significantly higher in DRU group. There was no significant difference in ulnar variance, volar tilt and articular step off between two groups. Among the clinical outcome, there was no significant difference in range of motion between two groups but grip strength was significantly larger in DRU group.
References
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Fig. 1.
Radiographs of 52-year-old male patient. (A) Preoperative radiograph shows 1.72 mm radial shortening and 25° dorsal tilting. (B) Preoperative computed tomography scan shows intra-articular fracture. (C) External fixation and K-wire fixation was done. Radial shortening decreased to 1 mm and volar tilting recovered to 10.2° . (D) Twelve-week follow-up radiograph shows 3.9 mm radial shortening and 9.4° volar tilting.
Fig. 2.
Radiographs of 54-year-old female patient. (A) Preoperative radiograph shows 0.2 mm radial shortening and 23° dorsal tilting. (B) Preoperative computed tomography scan shows intra-articular fracture. (C) External fixation and percutaneous pinning with K-wire on distal radioulnar joint was done. Radial shortening decreased to 0 mm and volar tilting recovered to 8.4° . (D) Twelve-week follow-up radiograph shows 0.5 mm radial shortening and 7.5° volar tilting.
Table 1.
Radiologic outcomes of PD group and DRU group
| Outcome | All (n=38) |
Preoperative |
Postoperative |
p-value* | ||
|---|---|---|---|---|---|---|
| PD group | DRU group | PD group | DRU group | |||
| Lumbar BMD (T-score) | -2.93 (±0.83) | - | - | -3.13 (±0.91) | -2.62 (±0.58) | 0.063 |
| Radial height (mm) | 11.18 (±2.09) | 7.23 (±1.92) | 07.43 (±2.03) | 10.52 (±1.81) | 12.20 (±2.15) | 0.013 |
| Radial inclination (°) | 21.05 (±4.41) | 15.42 (±3.23) | 14.95 (±2.72) | 19.91 (±4.98) | 22.80 (±2.62) | 0.026 |
| Ulnar variance (mm) | 00.00 (±1.16) | 00.34 (±0.23) | 00.29 (±0.12) | 00.13 (±1.10) | 00.20 (±1.27) | 0.399 |
| Volar tilt (°) | 09.26 (±4.09) | 11.23 (±4.78) | 10.43 (±3.78) | 09.00 (±4.52) | 09.67 (±3.42) | 0.629 |
| Articular step off (mm) | 00.13 (±0.34) | 01.34 (±0.45) | 01.41 (±0.37) | 00.04 (±0.21) | 00.27 (±0.46) | 0.093 |
Table 2.
Clinical outcomes of PD group and DRU group
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