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Purpose <p>Teardrop angle and anteroposterior (AP) width have been used as indirect radiographic indicators of sagittal plane tilt and articular incongruity in cases of intra-articular distal radius fractures. Even with the high sensitivity of computed tomography (CT), plain radiographic indicators can be useful for intraoperative and postoperative assessments of restoration of articular anatomy. However, none of the previous studies have explored whether the restoration of these parameters translates into better functional outcomes. This study aims to determine the same.</p> Methods <p>Patients with intra-articular distal radius fractures with volar lunate fossa fragments diagnosed based on CT scans were subjected to preoperative teardrop angle and AP width measurements. The postoperative restoration of these two parameters was assessed using the normal side radiographs as a template. The disabilities of the arm, shoulder, and hand (DASH) score and patient rated wrist evaluation (PRWE) scores were assessed at 3&#xa0;months postoperatively and the Visual Analog Scale (VAS) was assessed postoperatively at 3&#xa0;weeks and 3&#xa0;months. A correlation between the short-term functional outcome and restoration of teardrop angle and AP width was established.</p> Results <p>A total of 43 patients were included in the study. The mean postoperative teardrop angle was 1.69 degrees lower than the normal side and the AP width was 1.6&#xa0;mm higher than the normal side. There was no correlation between teardrop angle and functional outcome scores. However, restoration of AP width had a strong positive correlation with DASH score, PRWE score, and VAS score at 3&#xa0;months.</p> Conclusion <p>Radiological restoration of AP width has been shown reflect to better short-term functional outcomes in this study. Thus, AP width can prove to be a valuable and easily measurable radiological parameter both intraoperatively and postoperatively. However, restoration of the teardrop angle may not be associated with better functional outcomes.</p>

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Does restoration of the teardrop angle and anteroposterior width to the unaffected side distal radius influence the short-term functional outcomes after intra-articular distal radius fracture?

  • 期刊论文

  • 发表日期：

    2025年3月4日

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  • Sutanu Hazra,
  • Souvik Paul,
  • Bishal Bhagat,
  • Sudhendu

摘要

Purpose

Teardrop angle and anteroposterior (AP) width have been used as indirect radiographic indicators of sagittal plane tilt and articular incongruity in cases of intra-articular distal radius fractures. Even with the high sensitivity of computed tomography (CT), plain radiographic indicators can be useful for intraoperative and postoperative assessments of restoration of articular anatomy. However, none of the previous studies have explored whether the restoration of these parameters translates into better functional outcomes. This study aims to determine the same.

Methods

Patients with intra-articular distal radius fractures with volar lunate fossa fragments diagnosed based on CT scans were subjected to preoperative teardrop angle and AP width measurements. The postoperative restoration of these two parameters was assessed using the normal side radiographs as a template. The disabilities of the arm, shoulder, and hand (DASH) score and patient rated wrist evaluation (PRWE) scores were assessed at 3 months postoperatively and the Visual Analog Scale (VAS) was assessed postoperatively at 3 weeks and 3 months. A correlation between the short-term functional outcome and restoration of teardrop angle and AP width was established.

Results

A total of 43 patients were included in the study. The mean postoperative teardrop angle was 1.69 degrees lower than the normal side and the AP width was 1.6 mm higher than the normal side. There was no correlation between teardrop angle and functional outcome scores. However, restoration of AP width had a strong positive correlation with DASH score, PRWE score, and VAS score at 3 months.

Conclusion

Radiological restoration of AP width has been shown reflect to better short-term functional outcomes in this study. Thus, AP width can prove to be a valuable and easily measurable radiological parameter both intraoperatively and postoperatively. However, restoration of the teardrop angle may not be associated with better functional outcomes.