ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2025
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?
Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTeardrop 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.
methodsPatients 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.
resultsA 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.
conclusionRadiological 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.
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