ArticleArchives of orthopaedic and trauma surgery2025
Four-corner arthrodesis in SNAC wrist: biomechanical and functional comparison of two fixation techniques.
Article in Archives of orthopaedic and trauma surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Isolated scaphoidectomy for type II SLAC and SNAC wrists: retrospective case-series at long-term follow-up.Archives of orthopaedic and trauma surgery · 2026Article
- Prospective comparative study of scaphocapitate arthrodesis with and without lunate excision for stage IIIB Kienböck's disease.Archives of orthopaedic and trauma surgery · 2025Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionScaphoid nonunion advanced collapse (SNAC) is a debilitating condition that significantly impacts wrist function, pain levels, and return-to-work outcomes. Surgical fixation method may influence long-term functional results. This study aimed to compare the complications and functional outcomes of four-corner arthrodesis using either a CarpalFix screw system or a dorsal locked circular plate. MATERIALS AND
methodsPatients diagnosed with SNAC wrist who underwent four-corner arthrodesis between 2016 and 2022. A total of 47 patients were included: 25 treated with dorsal circular plate fixation and 22 with CarpalFix screw fixation. Pre- and postoperative assessments included the Visual Analog Scale (VAS) for pain, Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH) scores, wrist range of motion (ROM), and grip strength using a JAMAR dynamometer. Time to return to work and complications such as nonunion were also evaluated.
resultsThe CarpalFix group demonstrated significantly greater postoperative wrist flexion and total flexion-extension ROM compared to the dorsal plate group. Time to return to work was also shorter in the CarpalFix group. No significant difference in grip strength was found between groups. Three cases of nonunion occurred, all in smokers; however, this was not statistically significant.
conclusionsCarpalFix screw fixation provides comparable outcomes to dorsal circular plate fixation in the treatment of SNAC, with advantages in motion preservation and earlier return to work. Its low-profile design and strong compression capability make it a favorable option, particularly in younger patients.
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