Correlation of parameters on preoperative CT images with intra-articular soft-tissue injuries in acute tibial plateau fractures: A review of 132 patients receiving ARIF

IntroductionTibial plateau fractures often occur in conjunction with soft-tissue injuries of knees. The hypothesis of this study is that parameters of CT imaging can predict intra-articular soft-tissue injuries.Patients and methodsPatients who underwent arthroscopically assisted reduction and internal fixation (ARIF) for acute tibial plateau fractures performed by a single orthopedic surgeon between 2005 and 2015 were included in this retrospective study. Patients with concomitant ipsilateral femoral fractures, who had received revision surgery or who had undergone index surgery more than 30 days from the event were excluded. We measured lateral plateau depression and widening, medial plateau depression and displacement, and column involvement observed on preoperative CT scans. Intra-articular soft-tissue injuries were diagnosed based on findings from knee arthroscopy. The correlation of imaging parameters with soft-tissue injuries was analyzed by the area under a receiver operating characteristic (AUROC) curve and multivariate logistic regression.ResultsOne-hundred and thirty-two patients were enrolled in the study. The average age was 45.7 ± 13.1 years (range: 18–75 years). Lateral tibial plateau depressions >11 mm were significantly associated with increased risk of lateral meniscus tears (p = 0.001). However, there was no significant threshold of lateral tibial plateau widening that could be used to predict lateral meniscus tear. Greater risk of anterior cruciate ligament (ACL) avulsion fracture was observed in younger patients, patients with high-energy-pattern tibial plateau fractures, patients with fractures involving anteromedial or posterolateral columns, and patients with medial tibial plateau displacement >3 mm (p < 0.05).ConclusionMeasuring lateral tibial plateau depression and column involvement on preoperative CT scans can help predict a higher risk of lateral meniscus tear and ACL avulsion fracture respectively in patients with acute tibial plateau fractures.     

Early results of immediate repair of obstetric third-degree tears: 65% are completely asymptomatic despite persistent sphincter defects in 61%

OBJECTIVE: The outcome of immediate repair of obstetric third-degree tears is poorly documented. Immediate repair may give better functional results than delayed repair because scarring is reduced. This aim of this prospective study was to examine the early outcome of immediate repair of third-degree tears. METHOD: A total of 121 women who had immediate repair of obstetric third-degree tears underwent interview, anal ultrasonography and anorectal physiology. RESULTS: At review, 79 (65%) were completely asymptomatic (score = 0), 23 (19%), had minor flatus incontinence or mild urgency causing no compromise to their quality of life (score 1-4), and 19 (16%) had clinically embarrassing faecal incontinence (score 5-24). Thirty-nine (32%) had an intact internal anal sphincter (IAS) and external anal sphincter (EAS) (i.e. a successful repair), eight (7%) had a defect in the IAS alone but the EAS was intact (i.e. a successful repair but a residual IAS defect), 43 (35%) had a residual defect in the EAS alone (IAS intact) and 31 (26%) had a persistent defect in the IAS and EAS. Residual defects in either or both of the sphincters were associated with a significantly higher incidence of abnormal resting and squeeze anal pressures. Anal manometry had no correlation with symptoms. The highest proportion of severe incontinence was in those with an IAS defect alone (37%) and when there was a residual IAS and EAS defect (24%). Only 2 of 39 (5%) with an intact IAS and EAS had severe incontinence and only 8 of 43 (18%) with a residual EAS defect alone had severe faecal incontinence. CONCLUSION: These results indicate a good outcome following immediate repair of third-degree obstetric tears and emphasize the role of the IAS in providing continence.     

Fracture of the coracoid process with acute subscapularis tear without shoulder dislocation

Coracoid process fracture is an uncommon injury and can be easily missed. An associated acute subscapularis tear is still rare. Herein, we describe a 61 year old male who fell from a 2 meter height (stair case) and presented with isolated coracoid process fracture with acute subscapularis tear without dislocation of (R) shoulder joint. The plain x-rays, CT scan and MR arthrography comprised the diagnosis. He was operated upon with reattachment of subscapularis to lesser tuberosity and conjoint tendons to pectoralis major. At 6 mo followup he had good range of motion and his MRI revealed complete healing.     

半月板成型缝合术在盘状半月板撕裂中的近期临床效果评价

目的评价半月板成形术结合Fastfix及MM-Ⅱ缝合技术在膝关节外侧盘状半月板撕裂中的近期临床效果。方法 2010年1月至2012年12月,对59例膝关节盘状半月板撕裂患者进行了半月板成型及缝合术。根据撕裂的大小和部位,采用Fast-fix缝合系统及MM-Ⅱ缝合套管针进行缝合。59例随访12~26个月,平均（18.4±3.6）个月。在术前及术后随访时记录患者的膝关节活动度、稳定性及Lysholm评分,比较术前及末次随访的Lysholm评分来评价盘状半月板成型缝合术的近期临床疗效。结果所有病例在末次随访时没有关节交锁及失稳症状,关节活动度均恢复正常。Lysholm评分从术前（58.8±6.8）分提高至术后（93.3±2.4）分,经t检验差异有统计学意义（t=-38.24,P〈0.01）。结论对于膝关节盘状半月板合并撕裂,在进行成型手术后通过Fast-fix及MM-Ⅱ对半月板撕裂进行缝合修复,可获得满意近期疗效。     

关节镜下保留二头肌肌腱转位固定术治疗巨大肩袖撕裂的疗效分析

目的??研究关节镜下保留二头肌肌腱转位固定术治疗巨大肩袖撕裂。方法??2014 年 1 月—2017 年 5 月对 39 例巨大肩袖撕裂患者施行保留肱二头肌长头腱的肌腱转位固定术。术前与术后 6 个月进行 Constant- Murley 肩关节评分、 加利福尼亚大学洛杉矶分校（UCLA）肩关节评分。结果??患者手术顺利, 术前 Constant- Murley 肩关节评分为（28.07±7.48） ,UCLA 肩关节评分为（17.8±2.6） ; 术后 6 个月随访 Constant‐Murley 肩关节评分为（72.02±6.38） ,UCLA 肩关节评分为（30.5±2.4） 。术后 Constant-Murley 肩关节评分、UCLA 肩关节评分与术前比较,差异有统计学意义（ P <0.05） 。术后患者疼痛缓解,未出现复发。结论??关节镜下保 留二头肌肌腱转位固定术治疗巨大肩袖撕裂临床效果满意。     

关节镜下治疗大型肩袖撕裂

目的探讨肩关节镜下治疗大型肩袖撕裂的方法和疗效。方法对34例大型肩袖撕裂患者在关节镜下行单排或双排FastTakII锚钉止点重建术。应用美国肩肘外科医师协会评价系统（ASES）和加利福尼亚大学洛杉矶分校（UCLA）肩关节标准评分。结果34例均获随访,时间4．5～40（7．7±2．4）个月。术后患肩在主动上举、内收、后伸、外展、外旋和内旋6个方向的活动度较术前均有改善（P〈0．05）;患肩完成10项13常活动能力：术前为8．45分±O．97分,术后提高至24．60分±1．21分（P〈0．05）;ASES和UCLA评分：术前分别为24．64分±2．44分和8．06分±1．47分,术后分别提高至71．15分±1．28分和21．77分±1．16分（P〈0．05）;VAS评分：术前为7．18分±2．33分,术后为3．43分±1．75分（P〈0．05）。结论肩关节镜下肩袖重建手术微创治疗优势显著,3～5个作业通道和专业化手术器械的合理交替配合操作能满足大型肩袖撕裂止点重建需求,经镜下双排或单排锚钉重建后的大型损伤肩袖稳定性良好,肩关节功能改善明显。     

The coracoacromial arch: MR evaluation and correlation with rotator cuff pathology

The relative prevalence of various acromial shapes, appearance of the coracoacromial ligament and enthesophytes along the inferior aspect of the acromioclavicular joint in patients with and without rotator cuff tears were evaluated. Of 76 patients with clinical instability and impingement, 31 had a normal rotator cuff and 45 demonstrated a partial or full tear of the supraspinatus tendon at surgery. Results were compared with those from magnetic resonance (MR) scans of 57 asymptomatic volunteers. Of the 45 patients with a supraspinatus tear, 38% (17) had a flat acromial undersurface (type I), 40% (18) had a concave acromial undersurface (type II), 18% (8) had an anteriorly hooked acromion (type III), and 4% (2) had an inferiorly convex acromion (type IV). Among the 31 patients with a normal rotator cuff at surgery and the 57 asymptomatic volunteers, the respective prevalences of the type I acromion were 39% (12) and 44% (25), of type II 48% (15) and 35% (20), type III 3% (1) and 12% (7), and type IV 10% (3) and 9% (5). Shoulders with surgically proven rotator cuff tears showed a tendential association with a type III acromion (8/45) and statistically significant associations with a thickened coracoacromial ligament (17/45) and acromioclavicular enthesophytes (18/45). For the association between inferiorly directed acromioclavicular joint enthesophytes and rotator cuff tears, age appears to be a confounding factor. The type IV acromion, newly classified by this study, does not have a recognizable association with rotator cuff tears. Assessment of the osseous-ligamentous coracoacromial outlet by may prove helpful to the orthopedic surgeon in patients for whom surgical decompression is contemplated.     

Shoulder muscle activation and coordination in patients with a massive rotator cuff tear: an electromyographic study

Adaptive muscle activation strategies following a massive rotator cuff tear (MRCT) are inadequately understood, and the relationship among muscles during everyday activities has not been considered. Thirteen healthy subjects comprised the control group, and 11 subjects with a MRCT the patient group. Upper limb function was assessed using the Functional Impairment test‐hand, neck, shoulder, and arm (FIT‐HaNSA). Electromyography (EMG) was recorded from 13 shoulder muscles, comprising five muscle groups, during a shelf‐lifting task. Mean FIT‐HaNSA scores were significantly lower in MRCT patients (p ≤ 0.001), reflecting a severe functional deficit. In MRCT patients, EMG signal amplitude was significantly higher for the biceps brachii‐brachioradialis (p < 0.001), upper trapezius‐serratus anterior (p = 0.025), muscle groups and for the latissimus dorsi (p = 0.010), and teres major (p = 0.007) muscles. No significant differences in the correlation among muscle groups were identified, pointing to an unchanged neuromuscular strategy following a tear. In MRCT patients, a reorganization of muscle activation strategy along the upper limb kinetic chain is aimed at reducing demand on the glenohumeral joint. Increased activation of the latissimus dorsi and teres major muscles is an attempt to compensate for the deficient rotator cuff. Re‐education towards an alternate neuromuscular control strategy appears necessary to restore function. © 2012 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 30:1140–1146, 2012