双排与缝合桥技术在关节镜下肩袖修复术中的疗效对比

目的 比较关节镜下双排与缝合桥技术在修复肩袖全层撕裂中的效果。方法 回顾性分析本院2017年10月至2020年10月间66例肩袖全层撕裂患者的关节镜下肩袖修复手术,其中前33例患者（对照组）采用双排缝合技术,后33例患者（观察组）采用缝合桥技术,术后比较两组相关指标,主要包括美国加州大学（UCLA）肩关节评分,美国肩肘外科医师协会（ASES）肩关节功能评分及Constant肩关节评分。结果 观察组患者术后UCLA肩关节评分32.15高于对照组28.58,(P<0.01);观察组患者（92.40）与对照组（86.46）在ASES肩关节功能评分中存在统计学差异（P<0.01）;观察组患者Constant肩关节评分（82.17）对比对照组患者（72.16）有统计学差异（P<0.01）。两组患者在治疗前后及末次随访时关节活动度均有明显改善,患者无神经损伤,伤口感染及缝合固定失败等围术期的并发症。结论 关节镜下缝合桥技术与关节镜下双排缝合技术在全层肩袖撕裂修复中相比,在肩关节功能评分方面有显著优势,关节镜下缝合桥缝合技术值得在临床上广泛应用。     

肩关节镜下单排缝合技术与双排缝合桥技术治疗肩袖损伤的临床疗效比较

目的 比较肩关节镜下单排缝合技术与双排缝合桥技术治疗肩袖损伤的临床疗效。方法 本研究采用随机对照设计，共纳入2021年4月至2022年4月于我院就诊的80例肩袖损伤病人，试验组和对照组各40例。试验组采用肩关节镜下双排缝合桥技术，对照组采用肩关节镜下单排缝合技术。病人均在术前、术后3个月、术后6个月、术后1年进行临床及随访评估，记录疼痛视觉模拟量表（VAS）评分、Constant-Murley评分、加州大学洛杉矶分校（UCLA）肩关节评分和术后肩袖再撕裂发生率。再分别观察肩袖撕裂直径大小（以3 cm为界）不同的病人中，试验组和对照组之间VAS评分、Constant-Murley评分和UCLA评分的差异。结果 手术前两组病人的VAS评分、Constant-Murley评分和UCLA评分比较，差异无统计学意义（P＞0.05）。术后1年随访时，试验组的VAS评分低于对照组，Constant-Murley评分和UCLA评分均高于对照组，差异有统计学意义（P＜0.05）。对于肩袖撕裂直径＜3 cm的病人，试验组和对照组之间的VAS评分、Constant-Murley评分和UCLA评分差异无统计学意义（P＞0.05）；对于肩袖撕裂直径≥3 cm的病人，试验组的VAS评分、Constant-Murley评分和UCLA评分均显著优于对照组，差异有统计学意义（P＜0.05）。相比对照组，试验组的再撕裂率更低（7.5% vs. 17.5%），但差异无统计学意义（P＞0.05）。结论 相比单排缝合技术，肩关节镜下双排缝合桥技术治疗肩袖损伤具有更优的临床疗效。但对于肩袖撕裂直径＜3 cm的病人，单排缝合技术能获得与双排缝合桥技术相似的临床疗效。     

关节镜下单排带线锚钉修补结合大结节骨髓刺激治疗大到巨大肩袖撕裂

目的研究关节镜下单排带线锚钉修补结合大结节骨髓刺激技术治疗大到巨大肩袖撕裂的临床效果。 方法对24例大到巨大肩袖撕裂患者,在关节镜下采用肩袖止点内移单排带线锚钉修补,并在修补肌腱外侧大结节裸露足印区打孔。术后按照康复计划渐进性康复训练。手术前和术后12个月对患肩采用VAS、UCLA、ASES评分系统进行疼痛和功能评估;并在术后第3天、3个月和12个月进行肩关节磁共振检查,观察肩袖修补和大结节足印区软组织覆盖情况。 结果所有患者随访12个月,术前和术后12个月VAS评分分别为（6.3±1.9）分和（0.4±0.1）分（P<0.05）,UCLA评分分别为（10.1±4.5）分和（30.4±4.2）分（P<0.05）,ASES评分分别为（27.9±17.8）分和（77.6±17.5）分（P<0.05）,所有手术肩关节疼痛和运动能力均较术前明显改善。术后12个月磁共振随访发现2例肩袖再撕裂发生,矢状位显示撕裂宽度均<1 cm;冠状位盂上切迹平面大结节足印区组织覆盖率在术后第3天、3个月、12个月平均分别为34.3%、89.1%和88.7%。 结论关节镜下肩袖单排带线锚钉修补结合大结节骨髓刺激技术治疗大到巨大肩袖撕裂能够提供可靠的修补,显著缓解疼痛,恢复肩关节功能并促进术后大结节足印区软组织覆盖。     

关节镜下修复巨大肩袖撕裂12例疗效分析

目的分析肩关节镜下双排锚钉缝合固定法修复巨大肩袖撕裂的临床疗效。方法采用肩关节镜下双排锚钉缝合固定法修复巨大肩袖撕裂12例。结果 12例均获得随访12个月,术前、术后12个月的Constant-Merly评分为40.3、86.4分,差异具有统计学意义（P〈0.05）;UCLA评分为10.6、28.3分,差异具有统计学意义（P〈0.05）。结论应用肩关节镜下双排锚钉缝合固定法修复巨大肩袖撕裂可以取得较好的短期疗效,是一种合理、有效的治疗方法。     

肩关节镜下单排缝合技术治疗肩袖撕裂

目的探讨肩关节下南加州骨科研究所单排缝合技术(SCOI row)治疗大中型肩袖撕裂的疗效。 方法对2018年6月至2018年8月南方医科大学第五附属医院关节外科使用SCOI row技术缝合治疗的大中型肩袖撕裂患者进行回顾性研究。纳入中型或者大型肩袖撕裂,排除依从性较差合并其他损伤的患者,共纳入26例患者,男10例,女16例;平均年龄(64±5)岁。SCOI row技术即采用单排3线锚钉固定结合足印区周围扩多个骨髓孔技术。术前关节镜下测量肩袖撕裂范围为2～4 cm,其中冈上肌撕裂9例(34.6%),冈上肌、肩胛下肌撕裂11例(42.4%),冈上肌、冈下肌、肩胛下肌撕裂3例(11.5%),冈上肌、冈下肌撕裂3例(11.5%)。术后6个月通过MRI评判肩袖是否愈合,测量足印区新组织厚度,比较术前与术后6个月疼痛视觉模拟评分(VAS)及肩关节功能评分(UCLA)及肩关节主、被动活动度。术前与术后6个月的数据比较采用配对t检验。 结果所有患者术后获(7.9±1.6)个月随访。术前、术后6个月VAS评分分别为(6.5±1.7)、(2.1±0.8)分,差异有统计学意义(t ＝10.225,P<0.05)。UCLA评分术前为(12.7±3.8)、术后6个月(31.1±1.6)分,差异有统计学意义(t ＝-3.066, P<0.05)。术后6个月足印区新组织厚度平均为(7.08±0.28)mm。术后6个月患者被动前屈、主动前屈、被动外展、主动外展、中立位被动外旋、中立位主动外旋活动度分别为(162.1±10.5)°、(155.3±38.5)°、(138.2±29.3)°、(130.4±22.4)°、(26.2±8.2)°、(15.3±7.3)°,均较术前明显提高(t ＝-7.913、-11.263、-8.286、-7.285、-11.734、-4.891,均为P <0.05)。术后6个月MRI显示肩袖撕裂足印区完全愈合为24例,再次撕裂2例,愈合率92.3%。 结论SCOI row技术缝合肩袖撕裂通过MRI评判愈合较高,肩关节功能恢复较好,疼痛缓解,是一种治疗肩袖撕裂的有效方法。     

关节镜下缝线桥技术治疗巨大肩袖撕裂的临床研究

目的探讨关节镜下缝线桥技术缝合巨大肩袖撕裂的临床疗效。 方法回顾分析2014年6月至2016年6月在广州市正骨医院收治并取得完整随访的38例采用关节镜下缝线桥技术修复的巨大肩袖撕裂患者的临床资料,排除无法取得随访、依从性差的患者,分析术前X线片、MRI检查,了解肩袖撕裂口大小、肩袖回缩程度、肌肉萎缩及脂肪浸润情况,应用SPSS 17.0统计学软件配对t检验对术前与术后半年随访时视觉模拟评分系统(VAS)评分和美国加州大学肩关节评分系统(UCLA)评分进行比较。 结果本组患者38例,男23例,女15例,平均年龄(66±6)岁,所有患者均获半年以上的随访,随访时间(12±5)月。所有患者在关节镜下均发现有2条或以上的肌腱撕裂,关节镜下见15例患者冈上肌腱和冈下肌腱撕裂,8例冈上肌、冈下肌和小圆肌腱撕裂,10例冈上肌腱、冈下肌腱撕裂和肩胛下肌腱撕裂,5例冈上肌腱和肩胛下肌腱撕裂。术前VAS评分为(6.7±1.6)分,术后6月随访时为(2.4±1.7)分,术前与术后6月随访的VAS评分差异均有统计学意义(t ＝10.123,P<0.01);术前UCLA评分为(7.9±1.2)分,术后6月随访时为(23.4±5.1)分,术前与术后6月随访的UCLA评分差异均有统计学意义(t ＝－18.979,P<0.01);术后的UCLA、VAS评分均明显升高。术后半年MR检查结果,5例患者出现小型再撕裂,裂口均<3 cm,术后再撕裂患者与无再撕裂患者的VAS评分和UCLA肩关节评分无明显统计学差异(P>0.05)。 结论关节镜下缝线桥技术修复巨大肩袖撕裂取得较好的短期疗效,是1种合理、有效的治疗方法。     

关节镜下单排与双排缝合桥修复技术治疗老年肩袖损伤的对照研究

目的关节镜下采取双排与单排缝合桥修复术治疗老年肩袖损伤的效果对比分析。 方法前瞻性收集简阳市人民医院2016年1月至2018年2月期间收治的118例老年肩袖损伤病患者,按随机数字表法分为对照组（关节镜下行单排锚钉固定）与观察组（关节镜下行双排缝合桥修复术）,两组各59例,比较两组不同程度损伤患者手术前后ASES评分、Constant-Murley评分、UCLA评分;并对比两组术后再撕裂发生率。 结果治疗前两组四种撕裂程度Constant-Murley、UCLA、ASES评分差异均无统计学意义（P>0.05）;治疗后两组比较,只有轻度撕裂三种评分差异均无统计学意义（P>0.05）,而巨大、重度、中度撕裂的三种评分两组间差异均具有统计学意义（P<0.05）,观察组显著优于对照组。对照组再撕裂发生率17/59（28.81%）显著高于观察组6/59（10.17%）（χ²=6.535,P=0.011）。 结论老年肩袖损伤采取双排与单排缝合桥术均可行,但双排缝合桥术应用范围较为广泛,且对于患者巨大、重度、中度撕裂改善效果更佳。     

关节镜下缝合桥双排固定技术治疗肩袖全层撕裂的初步疗效

目的评价关节镜下应用缝合桥双排固定治疗肩袖全层撕裂的初步临床效果.方法 回顾性分析北京大学第三医院2010年3月至2011年2月间应用关节镜下缝合桥双排固定技术治疗的44例肩袖全层撕裂患者的术后效果（男22例,女22例,术时平均52.3岁）.关节镜下将撕裂按大小分组.分别测定患者术前术后休息和运动时的VAS评分,肩关节前屈、外展和体侧外旋角度,美国加州大学肩关节评分（UCLA）和美国肩肘外科医生评分（ASES）.结果 术后随访时间平均9.7个月,随访率100%.本组病例小撕裂14例（31.8%）,中撕裂21例（47.7%）,大撕裂5例（11.4%）和巨大撕裂4例（9.1%）.休息时VAS评分从术前（6.4±3.4）分降到随访时（0.7±1.5）分,活动时VAS评分从术前的（7.9±2.1）分降到随访时（1.8±1.8）分.手术前后的关节活动度有统计学差异（前屈、外展和体侧外旋的Z值分别为4.789,4.450和4.454,P〈0.01）.UCLA评分由术前的（15.3±4.9）分增加到随访时（30.7±4.0）分;ASES评分由术前的（30.5±17.8）分增加到随访时（84.2±12.6）分,改变均有统计学意义（Z值分别为5.759和5.760,P〈0.01）.患者对手术的满意率是93%,无术中和术后并发症.结论 关节镜下缝合桥双排固定是一种治疗肩袖全层撕裂安全有效的方法,其长期临床效果需进一步研究.     

肩袖损伤合并肩关节粘连：一期松解修补还是先松解后修补？

目的分析比较肩袖损伤合并肩关节粘连患者一期与二期手术的临床疗效。 方法自2019年1月至2020年4月,在本院肩关节镜临床登记随访系统内选取60例肩袖损伤合并肩关节粘连患者,其中30例行一期手法松解+关节镜下粘连松解+肩袖修补术（一期组）,另30例先行麻醉下手法松解术（manipulation under anesthesia,MUA）松解,二期行关节镜下粘连松解+肩袖修补术（二期组）。患者术前及术后3个月、6个月、12个月时行肩关节活动度检查。术后6个月、12个月时行患肩MRI检查。在肩关节镜临床登记系统内向患者推送视觉模拟评分（visual analogue scale,VAS）、Constant评分以及美国加州大学洛杉矶分校（University of California, Los Angeles, UCLA）肩关节评分量表。 结果术后随访时间一期组平均为17个月,二期组平均为16个月。两组术后随访时肩关节各向活动度均较术前有显著提高（P<0.01）。两组术后随访时VAS、Constant评分及UCLA肩关节评分均较术前显著改善（P<0.01）。一期组术后6个月MRI发现肩袖再次撕裂1例。二期组在术后3个月前屈上举及外展活动度优于一期组（P<0.01）,之后随访两组间各向活动度无显著差异。一期组在术后3个月及6个月时肩关节评分均优于二期组（P<0.01）。 结论一期组术后肩袖再次撕裂可能与早期锻炼有关。二期组术前手法松解存在疼痛、松解不彻底及加重损伤风险。一期组肩关节活动度恢复慢,但在术后3个月和6个月时肩关节评分及满意度高。两组术后12个月肩关节评分以及长期临床疗效均满意。     

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。     

关节镜下"三角布钉"结合改良Mason-Allen技术治疗巨大"L"或"U"型肩袖损伤

目的评估在关节镜下"三角布钉"结合改良Mason-Aallen技术在临床中治疗巨大"L"或"U"型肩袖损伤的疗效。 方法回顾性分析2015年1月至2019年1月，西安交通大学附属红会医院收治的86例巨大"L"或"U"型肩袖损伤患者临床资料，其中男56例、女30例；年龄40 ~ 65岁，平均（52.5±2.5）岁。根据DeOrio和Cofield分型巨大肩袖损伤，且为"L"或"U"型。应用关节镜下"三角布钉"结合改良Mason-Allen技术治疗，记录肩关节活动度及并发症，手术前后采用Constant评分及视觉模拟评分（visual analogue scale,VAS）评价肩关节功能。 结果术前症状持续时间1 ~ 23个月，平均（6.2±2.5）个月；86例患者均获24 ~ 72个月随访，平均（29.3±4.5）个月；均无感染等并发症；术后12个月随访时超声检查，75例肩袖完整，8例部分损伤，3例出现全层撕裂后再次行关节镜手术治疗；末次随访肩关节活动度：前屈（170.7±3.5）°，外展（155.8±3.8）°，外旋（39.4±3.4）°，内旋（40.5±3.3）°；Constant评分由术前（31.2±1.2）分提高至术后（82.5±3.2）分（P<0.05）；VAS由术前（7.8±3.2）分减少至术后（1.3±0.5）分（P<0.05）。 结论关节镜下"三角布钉"结合改良Mason-Allen技术治疗巨大肩袖损伤有效，便于操作，可以减轻疼痛，改善肩关节功能，对于治疗巨大"L"或"U"型肩袖损伤是一种新的选择方法，值得临床推广。     

Electromyographic evaluation after primary repair of massive rotator cuff tears

Anatomic dissections have suggested that mobilization of the supraspinatus and infraspinatus tendons greater than 1 cm may cause suprascapular nerve injury. This study evaluated rotator cuff function by use of electromyographic (EMG) analysis after primary repair of massive tears in 9 patients. All subjects had massive rotator cuff tears involving at least the entire supraspinatus and entire infraspinatus tendons. Rotator cuff advancement averaged 2.5 cm (range, 2.0-3.5 cm). No EMG evidence of suprascapular nerve injury was found postoperatively. The UCLA shoulder score improved from a preoperative mean of 11 to a postoperative mean of 28. There was 1 excellent, 6 good, 1 fair, and 1 poor result. The poor result was due to a documented failed repair. The EMG results suggest that mobilization and advancement of the rotator cuff up to 3.5 cm during primary repair may be performed safely without as much risk to the suprascapular nerve as anatomic studies would suggest.     

Results of reconstruction of massive irreparable rotator cuff tears using a fascia lata allograft

Background:Despite the advances in surgical treatment options, massive rotator cuff (r-c) tears still represent a challenge for orthopedic surgeons. This study assesses the effectiveness of fascia lata allograft in reconstruction of massive and irreparable r-c tear and to evaluate the healing and functional outcomes.Results:Postoperative constant score increased from 32.5 preoperatively to 88.7 postoperatively. The most important was the pain relief from 2.4 preoperatively to 14.1 postoperatively and range of motion. The results of the MRI were not reliable, but the ultrasound was satisfactory. Finally, there was no infection or rejection of the graft in any of the patients.Conclusions:Despite advances in surgical methods, there is still not a universally accepted treatment for massive and irreparable rotator cuff tears, because the standard methods have dubious results, with excessive retear rates and poor outcomes, necessitating the need for new repair strategies. We documented significant clinical improvement using fascia lata allograft in the repair of massive irreparable r-c tear, acting as scaffold to bridge the defect, enhancing the healing at the repair site.     

The outcome and structural integrity of arthroscopic rotator cuff repair with use of the double-row suture anchor technique

BACKGROUND: The reported rate of failure after arthroscopic rotator cuff repair has varied widely. The influence of the repair technique on the failure rates and functional outcomes after open or arthroscopic rotator cuff repair remains controversial. The purpose of the present study was to evaluate the functional and anatomic results of arthroscopic rotator cuff repairs performed with the double-row suture anchor technique on the basis of computed tomography or magnetic resonance imaging arthrography in order to determine the postoperative integrity of the repairs. METHODS: A prospective series of 105 consecutive shoulders undergoing arthroscopic double-row rotator cuff repair of the supraspinatus or a combination of the supraspinatus and infraspinatus were evaluated at a minimum of two years after surgery. The evaluation included a routine history and physical examination as well as determination of the preoperative and postoperative strength, pain, range of motion, and Constant scores. All shoulders had a preoperative and postoperative computed tomography arthrogram (103 shoulders) or magnetic resonance imaging arthrogram (two shoulders). RESULTS: There were thirty-six small rotator cuff tears, forty-seven large isolated supraspinatus or combined supraspinatus and infraspinatus tendon tears, and twenty-two massive rotator cuff tears. The mean Constant score (and standard deviation) was 43.2+/-15.1 points (range, 8 to 83 points) preoperatively and 80.1+/-11.1 points (range, 46 to 100 points) postoperatively. Twelve of the 105 repairs failed. Intact rotator cuff repairs were associated with significantly increased strength and active range of motion. CONCLUSIONS: Arthroscopic repair of a rotator cuff tear with use of the double-row suture anchor technique results in a much lower rate of failure than has previously been reported in association with either open or arthroscopic repair methods. Patients with an intact rotator cuff repair have better pain relief than those with a failed repair. After repair, large and massive rotator cuff tears result in more postoperative weakness than small tears do.     

Suprascapular nerve neuropathy leads to supraspinatus tendon degeneration

BackgroundNowadays most of attention regarding rotator cuff is payed to how to reduce the failure after rotator cuff surgical repair rather than how to prevent the rotator cuff tear before surgery. The etiologies of rotator cuff tear are still unclear. As we all know, the nerve system include brain, spinal cord, sensory organs and all the neurons allover our body coordinates the homoeostasis of our body. We hypothesis that the nerve injury proximal to suprascapular nerve can leads to rotator cuff degeneration even tear.MethodsThirty-six SD rats were used. A defect on the suprascapular nerve was made on the right side and a sham surgery on the nerve (expose nerve only) at the left side. The insertion of supraspinatus tendon and supraspinatus muscle were harvested for testing. Twelve rats were sacrificed for biomechanical (six rats) and histological (six rats) properties were evaluated at 3, 6, and 9 weeks after surgery, respectively.ResultsSignificant inferior biomechanical properties of rotator cuff were found in nerve injured side compared to the nerve intact side at 6–9 weeks. Significant muscle atrophy was found at nerve injured side from 3 to 9 weeks. The enthesis of nerve injured side showed significant excessive cell maturity, reduced cellularity, smaller metachromasia area and more type-III collagen especially at 9 weeks after surgery.ConclusionsThe neuropathy proximal to suprascapular nerve can leads to rotator cuff degeneration even tear. The nerve dysfunction maybe an important etiology for rotator cuff tear.     

Influence of a nerve injury proximal to the suprascapular nerve on healing of repaired rotator cuff tear

BackgroundMassive rotator cuff tears have a high rate of re-injury because of severe fatty infiltration. Our data showed that injuries proximal to the suprascapular nerve may be one cause of massive rotator cuff tears. The purpose of this study was to evaluate, using a rat model, how brachial plexus injury associated with a massive rotator cuff tear influences healing of the rotator cuff repair.MethodsSeventy Sprague–Dawley rats were divided into three groups: rotator cuff tear with BP injury (DT group) (n = 28), rotator cuff tear without brachial plexus injury (T group) (n = 28), and a sham-operated group (n = 14). In the DT group, the rotator cuff tear was made and repaired 4 weeks after brachial plexus ligation. The gross assessment (evaluated the wet weight), biomechanical testing (evaluated the yield stress and the Young's modulus) and histological analyses (using the Bonar scale) were performed at baseline in the sham group, and at 4 and 12 weeks postoperatively in the DT and T groups (n = 7/group/time).ResultsMean wet weight and yield stress were significantly lower in the DT group than in the T group. Additionally, the mean Young's modulus was significantly higher in the DT group than in the T group. Histologically, greater tendon degeneration was observed around the musculotendinous junction in the DT group than in the T group.ConclusionThe gross, biomechanical and histological data show that the repaired rotator cuff tendon with brachial plexus injury in rats does not heal as well as a repaired tendon without an accompanying brachial plexus injury. This suggests that more proximal neuropathy is one risk factor for re-tear of a repaired rotator cuff tendon.     

肩袖损伤关节镜下缝合修复术后再撕裂的风险因素分析

目的研究肩袖损伤肩关节镜下缝合术后发生再撕裂的风险因素，为术前评估术后再撕裂风险的大小及手术方式提供临床参考。 方法回顾性分析2015年1月至2019年1月624例在本科因"肩袖全层撕裂"住院并接受肩关节镜下肩袖缝合修复术患者的临床资料。使用二元Logistic回归分析方法研究术后肩袖再撕裂的风险因素。 结果病程>3个月、术前撕裂范围>3 cm、单排固定方式、脂肪浸润程度较高（Goutallier3级及以上）、糖尿病史及术后外伤均为术后肩袖再撕裂的高风险因素（P<0.05）。患者年龄、性别、是否优势肩、吸烟史、是否从事竞技运动等与肩袖术后再撕裂无明显相关（P>0.05）。 结论病程长、术前撕裂范围大、单排固定方式、肌肉脂肪浸润程度较高、糖尿病史及术后外伤均可能造成术后肩袖发生再撕裂。     

Histological analysis and biomechanical evaluation of fatty infiltration after rotator cuff tear and suprascapular nerve injury in a rat model

Background

Rotator cuff tears are the most common shoulder injury, and little is known about the underlying etiology of fatty infiltration after rotator cuff tear. Previous studies speculated that rotator cuff tears lead to neural injury due to tethering of the suprascapular nerve at the notch. This study aimed to evaluate fatty infiltration after suprascapular nerve injury and rotator cuff tears.