Early results using a biodegradable magnesium screw for modified chevron osteotomies
Early results using a biodegradable magnesium screw for modified chevron osteotomies
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DOI：
10.1002/jor.23241
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发表时间：
2016-12-01
影响因子：
2.8
通讯作者：
Windhagen, Henning
中科院分区：
文献类型：
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作者：
Plaass, Christian;Ettinger, Sarah;Windhagen, Henning
这是第一项分析在拇外翻手术中使用镁基螺钉固定改良Chevron截骨术的大型研究。本前瞻性研究纳入了44例患者（45只足）。对每例患者进行改良Chevron截骨术，并使用镁螺钉进行固定。平均临床随访21.4周。患者的平均年龄为45.5岁。40名患者可植入该植入物，4名患者的外科医生决定更换为标准金属植入物。AOFAS、FAAM和疼痛NRS评分明显改善。拇外翻角、跖骨间角和籽骨位置明显改善。7例患者在前3个月内出现跖骨头背侧半脱位、旋转或内移。其中1例患者接受了翻修，所有其他患者的结果均被认为无临床意义或患者拒绝翻修。本研究显示了在拇外翻手术中使用镁螺钉的可行性。开始使用这些植入物的外科医生应了解这些植入物的正确操作，并应了解愈合过程中的腐蚀效应及其放射学外观。(c)2016骨科研究学会。由威利期刊公司出版J Orthop Res 34：2207 - 2214，2016.
This is the first larger study analyzing the use of magnesium-based screws for fixation of modified Chevron osteotomies in hallux valgus surgery. Forty-four patients (45 feet) were included in this prospective study. A modified Chevron osteotomy was performed on every patient and a magnesium screw used for fixation. The mean clinical follow up was 21.4 weeks. The mean age of the patients was 45.5 years. Forty patients could be provided with the implant, in four patients the surgeon decided to change to a standard metallic implant. The AOFAS, FAAM and pain NRS-scale improved markedly. The hallux valgus angle, intermetatarsal angle and sesamoid position improved significantly. Seven patients showed dorsal subluxation, rotation or medial shifting of the metatarsal heads within the first 3 months. One of these patients was revised, in all others the findings were considered clinically not significant or the patients refused revision. This study shows the feasibility of using magnesium screws in hallux valgus-surgery. Surgeons starting with the use of these implants should be aware of the proper handling of these implants and should know about corrosion effects during healing and its radiographic appearance. (c) 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 34:2207-2214, 2016.