Early failure of anterior bone block in multidirectional shoulder instability: a case report

We report the case of a 47-year-old female patient who developed predominantly anterior multidirectional glenohumeral instability. After rehabilitation, this patient was treated surgically with an anterior coracoid bone block using the Latarjet technique. The second postoperative day, the control scan revealed posterior glenohumeral dislocation. The patient underwent a second operation for a posterior iliac block. At last clinical follow-up (six years), the patient had normal shoulder motion; shoulder function was considered excellent using the clinical scores. We recall the pathogenic hypotheses explaining multidirectional shoulder instability and discuss the proposed treatments. This case illustrates the difficult diagnosis and therapeutic management of multidirectional instability. Under general anesthesia, examination showed that posterior laxity predominated while paradoxically, the patient presented predominantly anteromedial dislocations. This case is also exceptional by the development of posterior dislocation, an unusual postoperative complication after an anterior bone block; we describe the therapeutic options. In the event of multidirectional instability with bone injuries, we recommend a block in the direction of the instability. Preoperative examination under general anesthesia can be helpful in understanding the mechanism of residual postoperative instability, which would require complementary surgical stabilization.     

Traumatic posterior shoulder dislocation: a case with modification of Gerber procedure for humeral head reconstruction at 10-year follow-up

We report a case of acute traumatic posterior shoulder dislocation in a 41-year-old patient, which we treated surgically by a modification of the procedure described by Gerber for humeral head reconstruction in such cases. The diagnosis was confirmed by CT scan, which also helped us to assess the size of the antero-medial humeral head defect or impaction secondary to the dislocation; the size of this defect being a determinant element for the indication. Because the shoulder was unstable after closed reduction and almost 50% of the humeral head was impacted, we carried out a surgical treatment using an original technique as mentioned above. Radiologic and surgical features of acute traumatic posterior shoulder dislocation are discussed with special emphasis on diagnosis, indications and surgical aspects of this rare lesion, which represent 2–4% of acute traumatic shoulder dislocations.     

Infraglenoid tubercle avulsion and greater tuberosity fracture resulting from traumatic glenohumeral anterior dislocation: a case report

Traumatic anterior shoulder dislocation can be associated with anteroinferior glenoid bone loss causing potential recurrent instability. We report on a 62-year-old man with a first-time traumatic anterior dislocation of the right shoulder, resulting in both an infraglenoid tubercle triceps avulsion fracture and a greater tuberosity fracture. After reduction, nonsurgical management was chosen. No inferior-oriented apprehension was noticed during follow-up, which might necessitate surgical treatment of the inferior glenoid rim. At latest follow-up, the patient had recovered his shoulder function. Avulsion fractures of the infraglenoid tubercle are uncommon lesions after an anterior shoulder dislocation and, without signs of instability, can be treated conservatively.     

Rotator cuff tear associated with a posterior dislocation of the shoulder in a young adult: a case report and literature review

Posterior glenohumeral dislocations are rare, and an accurate diagnosis is often difficult to make. Although rotator cuff tears are a known risk in the common traumatic anterior glenohumeral dislocation, they are an extremely rare event in association with posterior glenohumeral dislocation, regardless of patient age. There have only been 2 documented cases of rotator cuff tear following posterior shoulder dislocation previously reported in the literature.We report the case of a rotator cuff tear associated with a closed traumatic posterior dislocation of the shoulder in a 22-year-old male involved in a motorcycle accident. This is only the second report of an isolated rotator cuff tear occurring as a result of a posterior shoulder dislocation. Furthermore, this case concerns the youngest patient ever to sustain such an injury in the orthopaedic literature.     

Treatment strategies for first time traumatic anterior traumatic dislocation of the shoulder. Plea for a multi-stop concept of preventive initial management

Summary The purpose of this paper is to outline the treatment protocol for the first time traumatic anterior shoulder dislocator, with options including conservative, arthroscopic and open surgical treatment. Regarding the subclassification of the first time traumatic anterior dislocater, it is imparitive to differentiate between the unidirectional dislocator with and without hyperlaxity. This subclassification takes into account the structural quality of the stabilizing ligamentous structures of the glenohumeral capsule. The patient with hyperelastic ligaments exhibit elastic deformation of the glenohumeral ligaments at the time of dislocation and thus, sustain less interstitial structural damage to the ligament. Therefore, these patients benefit from non-operative treatment. There are extrinsic and intrinsic factors which determine the outcome of the primary traumatic anterior shoulder dislocation. Extrinsic factors are those that are not related to changes in the shoulder morphology. The most important extrinsic factor is the age of the patient at the time of injury. The younger the patient at the time of injury the greater the risk of recurrence. As a rule, those patients 25 years of age or less, at the time of initial injury are less likely to spontaneously stabilize without surgical intervention, than they are to develop recurrence. Secondly, the type and level of sport participation is related to recurrence. Although the severity of the trauma can not be quantified, it certainly has an influence on recurrence. Immobilization remains controversial. A rehabilitation program is more likely to be successful in atraumatic instability. Patient compliance is important regardless of the type of treatment selected. Intrinsic factors include injury to the various anatomic structures about the shoulder, occurring at the time of primary anterior shoulder dislocation. A deep Hill Sachs lesion is more likely to result in recurrence secondary to both the impaction of the bone, as well as, the reduction of the area of articular surface. A displaced bony Bankart is a highly unstable situation secondary to the loss of the butress to retain the humeral head. In contrast to a Hill Sachs lesion or a bony Bankart, a concomittent fracture of the greater tuberosity is unlikely to result in recurrent dislocation. Isolated laberal detachment is not related to recurrence, but a complete disruption of the laberal ligament complex is highly correlated with recurrence. A rare subluxation erecta, as a special form of traumatic inferior instability, has a high recurrence rate. With increasing age there is a higher risk of concomittent rotator cuff tear. In most situations surgical repair of the rotator cuff tear results in resolution of the instability. The essential issue in determining the treatment protocol is to define concomittent hyperlaxity in the injured shoulder. Concomittent hyperlaxity precludes initial surgical treatment. The orthopedic surgeon treating the patient at the time of injury needs to design a concise treatment protocol for the patient based on the assessment of the extrinsic and intrinsic factors. An unreducable shoulder dislocation or associated vascular injury requires emergent intervention. Absolute indications for surgical treatment include: persistent dislocation, bony Bankart, a grossly displaced greater tuberosity fracture, and rupture of the subscapularis tendon. Surgical stabilization of primary anterior traumatic dislocation is indicated if the following strict criteria are met: adequate trauma, no self reduction, unidirectional instability without hyperlaxity, Hill Sachs lesion, age below 26 years, high level of sport activity and the special situation of luxatio erecta. Post primary stabilization is indicated for persistent subluxation, subjective instability or demonstrated pathologic instability tests. Rotator cuff tears due to traumatic dislocation in the elderly population require surgical repair.      

肩关节后方不稳的诊疗现状

肩关节后方不稳发生率明显低于前方不稳,但是临床上诊疗难度大,误诊和漏诊率较高。其病因、临床表现治疗策略与前方不稳完全不同。因此,深入认识肩关节周围解剖结构、掌握检查方法、基于解剖和受伤方式对肩不稳进行分型对提高诊断准确率具有关键作用。CT三维重建对肱骨头及肩盂骨缺损的评估和核磁共振造影(magnetic resonance angiography,MRA)对于后方盂唇及关节囊病变评估有助于精确诊断。治疗方法分为保守治疗及手术治疗。对肌性不稳建议保守治疗。创伤性及发育不良性不稳建议手术治疗,具体根据肩盂侧或肱骨头侧损伤行不同术式。肩盂侧损伤根据骨缺损情况行软组织手术、植骨手术或截骨手术来重建后方稳定结构;肱骨头侧缺损则根据前方骨缺损面积行植骨术或肩胛下肌填塞术。手术方式有开放手术和关节镜手术,前者优势在于学习曲线短,固定牢固;后者优势在于微创操作及可以多角度观察病变部位并精确控制骨块位置。本文对将上述问题加以综述。     

Die dorsal verhakte Schulterluxation

Posterior dislocation of the shoulder is a rare injury and is often misdiagnosed at initial presentation. Shoulder function improves over the course of time with the joint still in locked dislocation. Misdiagnosis is due to a lack of clear clinical signs compared to anterior dislocation; thus, appropriate x-rays (i.e., true anterior-posterior and axial views) are indispensible. However, posterior dislocation frequently becomes chronic and closed reduction is not successful any more. In contrast to anterior dislocations, the humeral head defect accounts for recurrent instability. Depending on the size of the defect and the duration of the dislocation, there are different treatment options, including elevation of the defect, bone grafting, McLaughlin procedure, rotation osteotomy, and arthroplasty. The patient’s outcome strongly depends on the size of the humeral head defect and the interval between trauma and definite diagnosis. The smaller the defect and the quicker the diagnosis is made, the better the results. Recurrent dislocations rarely occur in comparison to traumatic anterior instability.     

Archer's shoulder. Recurrent posterior subluxation and dislocation of the shoulder in two archers

Two right-handed archers presented with posterior instability of the shoulder. A 19-year-old Japanese and a 26-year-old white male archer developed pain and instability of the shoulder of 6 months' duration. Both had engaged in archery for several years. Both exhibited a positive apprehension test and recurrent posterior subluxation and dislocation by flexing the arm to 80 degrees with internal rotation. Both could reduce the instability with a snap by extending the arm. For the subluxation, Neer's inferior capsular shift procedure via a posterior approach was performed. For the dislocation, a posterior bone block was added to the inferior capsular shift. The posterior capsular redundancy was marked in both cases. At 5 and 9-years follow up respectively, both were doing archery and full activities without pain. These cases are thought to be examples of how a repetitive force can cause shoulder instability.     

改良关节镜双袢法Latarjet手术治疗癫痫患者复发性肩关节前脱位的疗效观察

目的研究改良关节镜双袢法Latarjet手术治疗癫痫患者伴复发性肩关节前脱位的临床疗效。 方法自2014年10月至2016年10月,共有9例伴发严重骨缺损的肩关节前脱位癫痫患者在深圳大学第一附属医院接受了改良关节镜双袢法Latarjet手术,患者平均年龄为（26.3±3.1）岁,术前均进行超过半年的抗癫痫治疗,术后继续进行抗癫痫治疗1年。术后立刻行CT检查观察骨块位置,分别于术后3、6、12、24个月随访行CT检查观察骨块吸收、愈合情况;并记录患者的美国肩与肘协会评分系统（American shoulder and elbow surgeon’form,ASES）评分、Rowe评分以及Walch-Duplay评分并进行肩关节功能评估。 结果共8例患者得到全程随访,平均随访（20.1±4.2）个月,3例患者术后再发癫痫（未按时服药）,分别为术后2、6、8个月,其中1例（术后6个月癫痫复发）失访,其余2例复发者CT显示骨块明显移位,随后经保守治疗后再次愈合。全部随访患者骨块愈合良好,6例恢复对抗运动,2例恢复正常生活,无肩关节不稳感,CT检查显示移植骨块最终塑形差异较大,其中4例吸收5%~75%,3例较原始状态面积扩大,1例无变化。术前及末次随访时平均ASES评分为（76.75±7.41）分和（94.68±5.02）分（P<0.05）,Rowe评分为（43.75±5.82）分和（93.13±5.30）分（P<0.05）,Walch-Duplay评分为（76.13±6.98）分和（93.00±2.00）分（P<0.05）。 结论改良关节镜双袢法Latarjet技术对于癫痫患者合并肩关节前脱位具有良好的短期临床疗效,且复发后有再次愈合的可能。但更应注意癫痫患者的术后病情控制,尽可能防止癫痫再发作导致手术失败,肩关节复发脱位。     

Clinical picture of anterior instability of the shoulder joint

The authors have studied the clinical picture of 360 patients with primary traumatic dislocations and the long-term results have been observed in 286 patients. The analysis of 50 arthrotomies of the shoulder performed in cases of anterior instability has been made. A direct relationship between the clinical course of instability and the severity of the intra-articular lesions appearing during the first traumatic dislocation has been established. Such lesions include ruptures or avulsions of the anterior portion of the cartilage wall, ruptures of the joint capsule, avulsion of the capsule from the neck of the scapula, fractures of the anterior border of the glenoid cavity, compression fracture of the posterior lateral portion of the head of the humerus, etc, Inadequate treatment of traumatic dislocation leads to instability in the form of frequent dislocations or subluxations in the shoulder joint. The surgical treatment of the instability should be directed at the reconstruction of the injured structures of the shoulder joint.     

陈旧性交锁肩关节后脱位手术治疗

目的 评价肱骨关节面复位加大块植骨治疗陈旧性交锁肩关节后脱位的疗效及结果.方法 2002年3月-2008年4月,对18例陈旧性交锁肩关节后脱位的患者,采用肱骨关节面复位加大块植骨进行手术治疗.全部患者受伤至接受手术时间平均为5个月,术前CT检查证实为陈旧性交锁肩关节后脱位,其中8例肱骨头前缘缺损(反Hill～Sachs征)在20%～25%之间,10例在25%～45%之间.结果 术后随访1～4年,平均2.6年.肩关节功能采用Constant评分:优7例,良9例,中1例,差1例;优良率为88.8%.1例患者术后肩关节僵直,但未有复发脱位.UCLA评分最高35分,最低13分,平均30分.结论 采用肱骨关节面复位加大块植骨治疗创伤导致陈旧性交锁肩关节后脱位,疗效肯定,肩关节功能恢复良好.     

Posterior capsulorrhaphy for treatment of recurrent posterior glenohumeral instability

The surgical treatment of recurrent posterior shoulder instability via a posterior approach has had a variable degree of success reported in the literature with recurrence rates ranging between 8% and 45%. The purpose of this study was to review the results of posterior capsulorrhaphy in a consecutive series of patients with recurrent posterior instability. Seventeen consecutive patients underwent operative management for posterior glenohumeral instability. The dominant shoulder was involved in ten patients. All patients were male with an average age of 28.1 years (range: 16 to 54 years). Ten patients had sustained a specific injury which precipitated the instability. Six patients reported dislocations requiring formal closed reduction maneuvers; the remainder described episodes of recurrent subluxation with spontaneous reduction. All patients underwent a posterior capsulorrhaphy using an infraspinatus splitting approach. Eight shoulders required repair of a posterior capsulolabral detachment. In addition, one patient required augmentation with a posterior bone block for significant glenoid rim deficiency. Outcome was assessed by personal interview, clinical assessment, and standardized radiographs. At an average follow-up of 3.9 years (range: 1.8 to 10.8 years) patients estimated their overall shoulder function to be 81% of the contralateral unaffected shoulder. The subjective result was excellent for eight patients, good for five patients, fair in two patients, and poor in two patients. One of the poor outcomes was in a patient with glenohumeral degenerative changes at the index procedure which progressed and eventually required a total shoulder arthroplasty. The other poor result was in a patient found to have a full-thickness rotator cuff tear 10.6 years after the index procedure. Two patients (12%) had recurrence of their instability. Both of these patients sustained a significant re-injury which precipitated their symptoms. Five patients complained of occasional night pain at the time of their last follow-up examination. Only one patient (who was re-injured) had to change professions as a result of shoulder symptoms. Posterior capsulorrhaphy for treatment of isolated posterior glenohumeral instability yields satisfactory clinical results. Recurrent instability in this series was associated with a specific re-injury and did not appear to increase with longer follow-up.     

创伤性肩关节后脱位的诊断与治疗

目的探讨创伤性肩关节后脱位的诊断方法和治疗效果。方法对2005年5月～2010年10月本院诊治的5例肩关节后脱位进行回顾性研究。5例患者中,本院漏诊1例酒精戒断症状发作后肩关节后脱位,本院及时正确诊断2例,分别为癫痫发作和车祸外伤后肩关节后脱位,外院漏诊2例,分别为车祸和坠落伤。早期正确诊断的2例中,1例行早期闭合复位,1例行切开复位;3例漏诊致陈旧性脱位患者,其中2例行改良McLaughlin手术切开治疗,1例放弃复位治疗。结果随访2～4年（平均32个月）,早期闭合复位的1例UCLA肩关节评分33分,早期正确诊断并行切开复位的1例UCLA肩关节评分31分,漏诊的陈旧性肩关节后脱位中2例手术治疗的UCLA肩关节评分分别为27分和30分,未予复位者UCLA肩关节评分22分,但随访时对结果表示满意。结论临床上对肩关节后脱位缺乏足够认识是造成漏诊的主要原因,早期诊断、早期复位是获得良好肩关节功能的重要保证。     

The posterior bone block and capsular shift in the management of posterior dislocation of the shoulder in adolescents

Objectives  

Stabilization of posterior instability or dislocation of the shoulder in adolescents with a bone block combined with a soft tissue procedure.     

Reconstruction of the articular surface of the humeral head after locked posterior shoulder dislocation: a case report

Posterior dislocations of the glenohumeral joint are extremely rare (2–4% of all shoulder dislocations) and often associated with bone or ligamentary injuries. Though the reverse Hill-Sachs lesion is a common injury associated with posterior shoulder dislocation, there have been only few articles describing specific treatments for this type of humeral head defect. This article describes the successful operative treatment of an acute locked posterior shoulder dislocation by reconstructing the articular surface of the humeral head with the use of autologous bone graft taken from the iliac crest. The patient was doing quite well with no complaints, good range of shoulder motion and no recurrence of posterior shoulder dislocation despite several epileptic seizures, 1.5 years after surgical reconstruction of the anatomy of the humeral head. His right shoulder function revealed to be “excellent” or “good”, assessed with an absolute Constant Score of 76 points and a relative Score of 88% when compared with an age- and sex-matched normal population.     

Financial impact of radiological reports on medical–legal evaluation of compensation for meniscal lesions

The records of 4 children of under 14 years of age treated at our institution for traumatic sternoclavicular dislocation (SCJ) were reviewed. Closed reduction in posterior SCJ after computed tomography (CT) was successful as immediate procedure. For anterior SCJ instability, open reduction and SCJ reconstruction obtained satisfactory results. Conservative treatment of SCJ subluxation for asymptomatic children was sufficient. Radiographs in “serendipity view” were useful for confirming reduction and stability in children. No postoperative CT was needed for this purpose. Closed reduction in posterior SCJ dislocation and surgical treatment in anterior SCJ dislocation in young children can provide stability and a satisfactory return to a normal function, but with some limitation when intense or competitive shoulder motion is required during sport. Young children and parents should be aware about this possibility. Conservative treatment of SCJ subluxation for asymptomatic children is useful. Reflection is required regarding the correct imaging examination after treatment to check stable reduction in a SCJ injury.     

Arthroscopic bankart suture repair for recurrent traumatic unidirectional anterior shoulder dislocations

We report our experience with arthroscopic repair of the Bankart lesion following traumatic unidirectional anterior shoulder dislocation. Thirty consecutive patients (7 women, 23 men; average age, 26.5 years) were followed for an average of 38 months (minimum 2-year follow-up) after arthroscopic Bankart suture repair for recurrent shoulder dislocation. The study included patients who had pure shoulder dislocations (excluding those with instability secondary to subluxation, multidirectional instability, or an atraumatic origin), had experienced an initial frank shoulder dislocation (documented radiographically or requiring the assistance of medical personnel for reduction), and had a Bankart lesion, visualized arthroscopically. Clinical evaluation using the Rowe functional grading system showed 11 patients rated as excellent, 8 as good, 3 as hair, and 8 as poor. Six of 8 patients were rated as poor because they frankly redislocated following their arthroscopic shoulder stabilization. Our study shows a 27% failure rate in this group. Critical reevaluation of the transglenoid arthroscopic Bankart procedure is mandatory to identify the appropriate patient population for this procedure.     

A complication of posterior glenoid osteotomy for recurrent posterior shoulder instability

Posterior glenoid osteotomy (posterior glenoplasty) is a standard surgical reconstructive operation for recurrent posterior instability of the shoulder. A 34-year-old man was treated by glenoid osteotomy and subsequently developed significant glenohumeral arthritis. Following several surgical procedures, only total shoulder arthroplasty gave substantial pain relief and restored stability. Inadvertent penetration of the glenohumeral joint at the time of osteotomy may have predisposed the patient to glenohumeral arthritis. Extreme care should be exercised not to damage the shoulder joint during this procedure.     

Editorial Commentary: Urgency Toward Arthroscopic Bankart Repair Is Essential for Anterior Shoulder Dislocation: You Don’t Have to Fix After the First Dislocation,but Definitely Before the Second!

While still hotly debated, primary arthroscopic management of the first-time anterior shoulder dislocation has an extensive list of known benefits: lower overall health care costs, improved patient-reported outcomes, a vast reduction in secondary instability, and higher quality-of-life measures. Yet, despite these meaningful contributions to health care quality, we continue to bypass the predictable success of an acute arthroscopic Bankart repair in order to tempt fate with “a trial” of nonoperative care for our young, high-risk collision athletes. Whether for the in-season athlete, the “early responder” with limited apprehension, subluxations with spontaneous reduction, or those stoically committed to nonsurgical care, we as physicians are often complicit in this shared risk taking and ceremonial weighing of the risks and benefits for treatment options after primary shoulder instability. Even just 1 additional episode of instability recurrence can double (or triple) the rate of glenohumeral bone loss. Furthermore, subsequent anterior shoulder instability compromises subjective shoulder function, heightens risk of secondary recurrence and/or revision, and increases the likelihood of requiring more advanced surgical management, such as with a Latarjet or other anterior bone block procedure. We must maintain a sense of urgency toward surgical treatment, particularly in young, high-demand athletes with persistent instability. To parrot the wisdom of our shoulder mentors, hear my humble plea: you don’t have to fix the shoulder after the first anterior dislocation, but you should definitely do it before the second!