Distal Clavicle Fracture as a Complication of Arthroscopic Distal Clavicle Resection

Arthroscopic resection of the distal clavicle has been advocated as a surgical treatment option for acromioclavicular (AC) joint pathology. To our knowledge, iatrogenic fracture of the distal clavicle during distal clavicle resection has never been reported. This report describes distal clavicle fracture as a complication of misidentification of the AC joint and subsequent aggressive burring of the distal clavicle during shoulder arthroscopy. This case is further complicated by the development of symptomatic delayed union and adhesive capsulitis. Ultimately, a revision distal clavicle resection was performed, underscoring the fact that special care must be taken to properly identify the AC joint and rule out pre-existing distal clavicle stress fracture or osteolysis before performing the arthroscopic Mumford procedure.     

Risk factors for clavicular midshaft fractures after hook plate fixation for the treatment of Neer type II clavicular fractures

ObjectiveNeer type II fractures are common, and hook plate fixation is one of the recommended treatments. Although clavicular midshaft fractures after hook plate fixation are rare, such fractures increase patients’ suffering and worsen their functional outcomes. This study was performed to identify the risk factors for this complication.MethodsFrom 2009 to 2018, 425 patients were admitted with Neer type II clavicular fractures. According to the selection criteria, 352 patients were included in this retrospective observational study. All patients were divided into either the complications group (patients with midshaft fractures) or the control group (patients without midshaft fractures). Data collected included patient demographics and surgical, hook plate, and screw characteristics. The chi-square test was used to conduct between-group comparisons of risk factors. Statistically significant variables were included in a logistic regression model.ResultsIn both the complications group (n = 21) and control group (n = 331), significantly more patients of advanced age and significantly more patients treated with hook plates that were not bent during surgery developed midshaft fractures.ConclusionThe risk of a clavicular midshaft fracture after hook plate fixation may be significantly increased by advanced age or a lack of hook plate bending.     

锁骨钩钢板在锁骨远端创伤的应用及并发症分析

目的：探讨应用锁骨钩钢板内固定治疗锁骨远端创伤患者的临床效果,分析并发症的原因并探讨进一步防治措施。方法：2001年9月至2008年2月治疗50例锁骨远端创伤患者,其中男36例,女14例;年龄19～77岁,平均43岁。新鲜NeerⅡ型锁骨远端骨折36例,TossyⅢ型肩锁关节脱位14例。应用锁骨钩钢板内固定治疗。术后随访测量肩关节前屈上攀活动度和并发症发生情况,分别采用Karlsson标准及Constant—Murley评分标准进行功能评价。结果：所有患者随访7～18个月,平均12个月,术后1周所有患者均能进行肩关节主动活动。术后6周均完全恢复日常生活和工作能力。按照Karlsson标准,优44例,良6例。对患肩进行Constant—Murley评分,术前患肩平均（73．8±8．3）分,术后平均（59．6±6．7）分,术后评分高于术前。无伤口感染发生,5例发生术后并发症均得到及时治疗,随访骨折全部愈合,无肩锁关节再次脱位。结论：应用锁骨钩钢板内固定治疗NeerⅡ型锁骨远端骨折和TossyⅢ型肩锁关节脱位,具有固定坚强可靠、能早期功能锻炼的优点,同时又能减少手术并发症。     

浮肩损伤的手术治疗

浮肩损伤（floating shoulder injury,FSI）是指同侧的锁骨干和肩胛颈同时骨折而造成肩关节上部悬吊复合体结构（superior suspensory shoulder complex,SSSC）双重破坏的一种少见的肩部严重损伤。目前仅有少量文献报道,随着社会发展和科技进步以及交通事业的发达,浮肩损伤的发生也逐渐增多。自2001年1月至2007年12月收治浮肩损伤17例,经手术治疗效果良好,现报告如下。     

AO锁骨钩钢板固定治疗锁骨远端骨折伴肩锁关节脱位的应用研究

目的：探讨应用AO锁骨钩钢板（CHP）治疗锁骨远端骨折伴肩锁关节脱位的实用价值。方法：对1999年8月-2007年4月收治的锁骨远端骨折伴肩锁关节脱位28例,均采用AO锁骨钩钢板（CHP）内固定治疗,对其临床资料进行回顾性分析。结果：全部骨性愈合,随访8～48个月,平均23个月。无钢板断裂、螺钉松动、感染及再脱位,无骨折不愈合病例,肩关节功能均恢复良好。CHP取出时间8—17个月,平均11个月。结论：CHP对锁骨远端骨折并肩锁关节脱位治疗效果理想,骨折不愈合可以避免,并且可以早期功能练习,使骨折愈合与功能恢复同步进行,而且具有操作简单、易掌握、损伤小、疗效确切的特点,值得临床应用推广,是目前有效治疗此种损伤的最佳方法。     

Distal clavicular osteolysis: MR evidence for subchondral fracture

Purpose To investigate the association between distal clavicular osteolysis and subchondral fractures of the distal clavicle at MRI. Materials and methods This study was approved by the hospital human research committee, which waived the need for informed consent. Three radiologists retrospectively analyzed 36 shoulder MR examinations in 36 patients with imaging findings of distal clavicular osteolysis. The presence of a subchondral fracture of the distal clavicle, abnormalities of the acromioclavicular joint, rotator cuff tears and labral tears were assessed by MRI. These cases were then compared with 36 age-matched controls. Results At MRI, 31 of 36 patients (86%) had a subchondral line within the distal clavicular edema, consistent with a subchondral fracture. Of the 36 patients, 32 (89%) had fluid in the acromioclavicular joint, while 27 of 36 patients (75%) had cysts or erosions in the distal clavicle. There were 13 patients (36%) with associated labral tears, while eight patients (22%) had partial-thickness rotator cuff tears. In the control group one of 36 (3%) had a subchondral line (P<0.05), while ten of 36 (28%) had rotator cuff tears and 13 of 36 (36%) had labral tears. These latter two were not statistically significant between the groups. Conclusion A distal clavicular subchondral fracture is a common finding in patients with imaging evidence of distal clavicular osteolysis. These subchondral fractures may be responsible for the propensity of findings occurring on the clavicular side of the acromioclavicular joint.     

锁骨钩钢板治疗锁骨远端骨折及肩锁关节脱位临床观察

目的：探讨锁骨钩钢板治疗锁骨远端骨折和肩锁关节脱位的临床疗效。方法：86例锁骨远端骨折和肩锁关节脱位患者,56例行锁骨钩钢板内固定术,30例行交叉克氏针固定术。结果：所有病例术后随访1-2年。锁骨钩钢板组56例患者无钢板断裂、螺钉松动及再脱位,无骨折不愈合病例,肩关节功能均恢复良好;肩关节功能评定优良率为100%,其中优占91.07%。交叉克氏针组30例患者钢针脱出7例,折断1例,肩锁关节脱位复发3例;优良率为76.67%,其中优占43.33%。两组均未发现感染。结论：锁骨钩钢板治疗锁骨远端骨折和肩锁关节脱位操作简单、损伤小、疗效确切,可使骨折愈合与功能恢复同步进行,值得临床应用推广。     

形状记忆合金环抱器治疗锁骨骨折

目的探讨形状记忆合金环抱器治疗锁骨骨折的疗效和适应证。方法我院自2004年6月至2008年9月采用环抱器治疗锁骨骨折35例。其中锁骨中段骨折32例,外1／3骨折3例。结果32例获随访,骨折均愈合,愈合时间6—12周,平均7．8周。1例术后1周出现环抱器脱落,经2次手术后稳定。本组病例未出现感染骨折及血管、神经损伤等并发症。根据庄起昌和蒋宁葆评价标准：优29例,良2例,可1例,差0例,优良率96．8％。结论形状记忆合金环抱器治疗锁骨骨折具有操作简单,固定可靠等优点,适用于中1／3骨折,不适用于外1／3骨折及严重粉碎性骨折。     

改良颈丛阻滞麻醉用于锁骨骨折手术53例效果观察

目的探讨改良颈丛阻滞麻醉用于锁骨骨折手术的临床效果观察。方法选择我院近年来锁骨骨折手术的患者53倒,均采用改良颈丛阻滞麻醉。结果53例手术中49例麻醉效果优;4例麻醉效果良,且镇痛时间长,术中术后生命体征平稳。结论利用改良颈丛阻滞麻醉进行锁骨骨折手术是一种简单、安全,有效的麻醉方法,值得在临床上进行推广应用。     

A pseudo-iatrogenic case of medial clavicular fracture

Medial fractures are the least common type of clavicular fracture (2-10%). The patient is a 29-year-old gynaecology resident with hyper-laxity and sternoclavicular instability. The latter had been surgically stabilized with Dacron((R)) tape, which eroded the bone causing an usura. Acute right shoulder pain occurred 10 years later. CT revealed medial clavicular stress fracture. After 4 weeks of conservative management, internal fixation followed. Five months postoperatively the patient performed all activities without pain. In this patient the weakened medial clavicle due to usura clearly played a role in both the site and nature of the fracture. Furthermore, CT is essential in arriving at the correct diagnosis.