Stewart Christopher M B, Raja Haseem, Torrance Emma, Funk Lennard
The University of Manchester, Manchester, UK.
The Arm Clinic, HCA The Wilmslow Hospital, Wilmslow, UK.
Orthop J Sports Med. 2020 Apr 23;8(4):2325967120914965. doi: 10.1177/2325967120914965. eCollection 2020 Apr.
Suture anchors are widely used for labral reconstruction surgery. However, there has been some concern over the development of osteolysis around the anchor. This has been reported for both biocomposite and all-suture anchors, but they have not been compared directly in vivo.
To compare the bone response to 2 common suture anchors: a traditional biocomposite push-fit anchor and an all-suture anchor.
Randomized controlled trial; Level of evidence, 2.
Included in this study were 17 patients with a total of 37 unique suture anchors. Magnetic resonance imaging scans were performed at 3 weeks and 6 months postoperatively. A total of 38 senior radiologists and shoulder surgeons evaluated the images using a previously validated system for grading the bone response around suture anchors. The mean difference in grading at 3 weeks and 6 months was calculated using unpaired tests, and the interrater reliability was evaluated with an intraclass correlation coefficient (ICC).
At 3 weeks, there was no statistically significant difference in the degree of osteolysis surrounding each suture anchor type ( = .258), with little bone response. However, on the 6-month scans, there was a significantly lower level of osteolysis seen in the all-suture anchors compared with the biocomposite anchors ( = .040). Interrater reliability was excellent, with an ICC value of 0.975 (95% CI, 0.962-0.985).
All-suture anchors cause significantly less osteolysis in glenoid bone at 6 months compared with biocomposite anchors.
缝线锚钉广泛应用于盂唇重建手术。然而，人们对锚钉周围骨溶解的发生有所担忧。生物复合材料锚钉和全缝线锚钉均有相关报道，但尚未在体内进行直接比较。
比较两种常见缝线锚钉（传统生物复合材料压配式锚钉和全缝线锚钉）引起的骨反应。
随机对照试验；证据等级，2级。
本研究纳入17例患者，共有37个独特的缝线锚钉。术后3周和6个月进行磁共振成像扫描。共有38名资深放射科医生和肩部外科医生使用先前验证的系统对缝线锚钉周围的骨反应进行分级评估图像。使用非配对检验计算3周和6个月时分级的平均差异，并使用组内相关系数（ICC）评估评分者间的可靠性。
在3周时，每种缝线锚钉类型周围的骨溶解程度无统计学显著差异（P = 0.258），骨反应较小。然而，在6个月的扫描中，与生物复合材料锚钉相比，全缝线锚钉的骨溶解水平显著降低（P = 0.040）。评分者间可靠性极佳，ICC值为0.975（95%CI，0.962 - 0.985）。
与生物复合材料锚钉相比，全缝线锚钉在6个月时引起的盂骨骨溶解明显更少。
