Scholarlink

Introduction <p>Scaphoid 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.</p> Materials and methods <p>Patients 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.</p> Results <p>The 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.</p> Conclusions <p>CarpalFix 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.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Four-corner arthrodesis in SNAC wrist: biomechanical and functional comparison of two fixation techniques

  • 期刊论文

  • 发表日期：

    2025年7月28日

查看全文
  • Yakup Kahve,
  • Utku Gurhan,
  • Kazım Onur Unal,
  • İbrahim Alper Yavuz,
  • Mahir Intizam,
  • Metin Akinci

摘要

Introduction

Scaphoid 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 methods

Patients 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.

Results

The 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.

Conclusions

CarpalFix 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.