A new vagal anchor electrode for real-time monitoring of the recurrent laryngeal nerve

Background

Despite conventional neuromonitoring, the recurrent laryngeal nerve (RLN) is still at risk for damage during thyroid surgery. The feasibility of continuous RLN monitoring by vagal nerve (VN) stimulation with a new anchor electrode should be shown, and electromyographic signal alterations of stressed RLN were analyzed to be alerted to imminent nerve failure whereby the nerve damage becomes reversible.

Methods

VN stimulation was achieved in 23 pigs. Sensed signals were analyzed and stored as real-time audio/video feedback EMG system. RLN was stressed by mechanical and thermal injury; signal alterations were evaluated.

Results

VNs were successfully real-time stimulated by using the anchor electrode. No complications or side effects during stimulation were detected. RLN injury led to an alteration of signal amplitude and latency period but signal restitution after injury.

Conclusions

Real-time monitoring of the RLN is technically feasible to perceive imminent nerve failure. The anchor electrode was safely and easy to handle. Its implementation is being tested in an ongoing clinical trial.     

Role of suture anchors in management of fractures of inferior pole of patella

Background:

The traditional recommendation for displaced comminuted inferior pole fractures is excision of the comminuted pole followed by reattachment of the patellar tendon with transosseous suture. To the best of our knowledge there has been no previous published study mentioning the use of suture anchors for fracture inferior pole of patella. We present a retrospective analysis of five cases of patients doing well at final follow-up of two years.

Materials and Methods:

Five patients treated at our institute using suture anchors for repair of comminuted inferior pole fractures of patella between January 2007 to March 2007. (range 28 years-55 years). There were three males and two females.

Results:

The average follow-up was 25 months (range 24 months-26 months). The patients were evaluated for range of motion, strength, patellofemoral scores and any alteration of patellar height. The outcome of the procedure was assessed with use of the patellofemoral scoring system of Noyes et al,⁵ as adapted by Saltzman et al.⁶ The final patellofemoral score (maximum 100 points) was 94.6 (range 93-96).

Conclusion:

We believe it is a novel extended indication of the use of suture anchors and should be in the armament of every trauma surgeon.     

肩关节镜下锚钉固定位置与跨度对治疗复发性肩关节前脱位预后的影响

目的 评估肩关节镜下锚钉内固定术治疗复发性肩关节前脱位的临床疗效,并探讨锚钉固定位置、跨度对临床疗效的影响。方法 2013年1月至2016年6月,前瞻性纳入47例复发性肩关节前脱位病人,关节镜下使用3枚Lupine锚钉固定撕裂的盂唇。术后第2日常规复查肩关节三维CT,以表盘上的时间刻度描述锚钉位点及跨度。采用数字分级法（numerical rating scale, NRS）评估病人的疼痛程度;使用美国肩肘外科医师学会（American Shoulder and Elbow Surgeons, ASES）评分及Constant-Murley评分评估手术前后关节功能。使用丹麦健康与医疗管理局（Danish Health and Medicine Authority）满意度评分表评估病人满意度。分析锚钉固定位置、跨度等因素与Constant-Murley评分的关系。结果 47例病人术后未出现明显并发症,术后的NRS评分、ASES评分、Constant-Murley评分均较术前显著改善,差异均有统计学意义（P均＜0.05）。病人满意度评分为（8.2±1.3）分。锚钉跨度越大,Constant-Murley评分越低（F=21.714,P＜0.001）;锚定位置越高（越接近12点钟位置）,Constant-Murley评分越低（F=13.752,P=0.006）。结论 锚钉固定前下盂唇可有效改善病人肩关节功能,有利于肩关节稳定性重建,且锚钉固定的位置及跨度与肩关节术后稳定性相关。     

强生Fastin RC锚钉治疗Ⅲ度膝关节内侧副韧带损伤的临床疗效观察

目的：评价应用强生Fastin RC锚钉治疗Ⅲ度膝关节内恻副韧带损伤的临床疗效。方法：2006年6月-2008年6月对76例Ⅲ度膝关节内侧副韧带损伤患者应用强生Fastin RC锚钉进行原位修复手术。结果：术后随访75例，随访4-24个月．优良率为92．11％。结论：强生Fastin RC锚钉固定治疗膝关节内侧副韧带损伤能恢复韧带的原有解剖结构，且能提供足够的生物力学支持，是治疗Ⅲ度禳关节内侧副韧带损伤的一种有效方法。     

阔筋膜结合锚钉治疗腓骨肌腱滑脱疗效观察

目的 :探讨应用锚钉结合阔筋膜治疗腓骨肌腱滑脱。方法 :自2011年2月至2014年3月采用自体阔筋膜条编织后结合带线锚钉重建腓骨肌腱上支持带治疗腓骨肌腱滑脱12例,其中男9例,女3例;年龄14~23岁,平均17岁。术前均存在踝关节疼痛,不能剧烈运动。结果 :12例患者切口全部甲级愈合,无感染、不愈合。所有患者定期复查,随访时间6个月~3年,平均18个月。术后踝关节疼痛明显好转,运动功能恢复,踝关节功能应用Mazur踝关节症状与功能评分系统评分,平均(91.92±3.17)分。结论:阔筋膜结合锚钉治疗腓骨肌腱滑脱具有取材区创伤小,操作简单,术后功能恢复满意的良好效果。     

双纽扣钢板联合加强锚钉治疗肩锁关节脱位

目的: 探讨双纽扣钢板联合加强锚钉技术与锁骨钩钢板内固定治疗完全性肩锁关节脱位的疗效及预后。方法: 选取2017年7月至2020年9月收治的手术治疗肩锁关节脱位患者42例为研究对象,分为观察组（21例）和对照组（21例）。观察组中,男14例,女7例;年龄21~63（45.05±8.70）岁;对照组中,男16例,女5例;年龄25~68（45.00±9.44）岁。观察组行双纽扣钢板联合加强锚钉技术治疗,对照组行锁骨钩钢板内固定术治疗。比较两组患者手术时间、术中出血量、术后住院时间,术前及术后1、3、6个月肩关节疼痛视觉模拟评分（visual analogue scale,VAS）,肩关节功能Constant-Murley评分以及术后并发症发生情况。结果: 两组术中出血量及术后住院时间比较,差异无统计学意义（P>0.05）;双纽扣钢板联合加强锚钉技术组手术时间（65.24±5.36）min,较锁骨钩钢板组（48.81±4.72） min长（P<0.05）。肩关节功能及疼痛程度测定显示,术前两组差异无统计学意义（P>0.05）;术后1、3、6个月,观察组Constant-Murley评分分别为（73.29±2.15）、（85.43±1.47）、（93.86±1.24）分,与对照组比较差异有统计学意义;VAS评分为（2.76±0.62）、（1.71±0.64）、（0.57±0.51）分,与对照组比较,差异有统计学意义（P<0.05）。观察组术后1例肩部疼痛;对照组术后5例肩部疼痛,2例肩关节活动受限,1例肩峰下骨质吸收,两组均未出现复位丢失。结论: 双纽扣钢板联合加强锚钉治疗完全性肩锁关节脱位能够获得良好的临床效果,无须取出内固定,患者肩关节功能恢复情况及疼痛改善情况优于锁骨钩钢板内固定术,更值得临床推广。     

Biomechanical Fixation in Arthroscopic Rotator Cuff Repair

Rotator cuff repair remains a challenging and rapidly evolving field. Several recent studies have shown that arthroscopic repair yields functional results similar to those of mini-open and open procedures, with all of the benefits of minimally invasive surgery. However, the “best” repair construct remains relatively unknown, with wide variations in surgeon preference and conflicting evidence in the literature. The most recent developments in basic science, suture and suture anchor technology, and innovative prospects for arthroscopic rotator cuff repair are reviewed.