［Abstract］　The perioperative pain management of rotator cuff tear is interpreted and discussed in this paper and the main points and conclusions of the suggestions on the pain management of the rotator cuff repair operation in the PROSPECT Working Group are mainly introduced. There are still unsolved problems in pain management of rotator cuff tears during perioperative period. Based on the evidence-based medical evidence, the clinical suggestions can be used as work reference for clinicians.]]> 2020/7/3 15:01:52 CHEN Jian-hai 5true ［Abstract］　Objective　To evaluate the application value of the modified ‘Chinese-way technique’ under shoulder arthroscopy in repair of large to massive rotator cuff tears. Methods　The clinical data of 19 patients with large to massive rotator cuff tears who underwent the modified ‘Chinese-way technique’ under shoulder arthroscopy in repair of rotator cuff tears were retrospectively analyzed from June 2017 to July 2019. During the surgery, the rotator cuff Footprint was freshly decorticated on the surface and the rotator insertions was moved 4～5 mm inward. The intertubercular groove(bicipital sulcus) was released, and the long head tendon of biceps brachii(LHBT) was transferred outward the greater tubercle and implantated(LHBT without cutting off). After that, the rotator cuff tear was repaired by Suture-Bridge Fixation. The Visual Analogue Scale(VAS) scores, University of California at Los Angeles(UCLA) scores, Constant-Murley scores and range of motion(ROM) of shoulder were analyzed and compared 6 weeks, 2 months, 3 months, 6 months, 12 months, 18 months and 24 months after the surgery. Results　All the patients were followed up. Before the surgery, the VAS scores were 5［4, 8］points; the Constant-Murley scores were (42.65±6.61)points and the UCLA scores were (11.21±3.10)points. After the surgery,the VAS scores were 1［0, 2］points; the Constant-Murley scores were (78.15±7.25)points and the UCLA scores were (31.52±3.64)points. The differences between postoperative results and preoperative results were statistically significant(P<0.01). Before the surgery, the average angle of flexion and upward lifting was 62.7 °; the average angle of lateral external rotation was 12.2°; the level of internal rotation and backward extension basically reached level L₄ and the muscle strength of forward flexion resistance was 11.4% of the healthy side. After the surgery, the average angle of flexion and upward lifting was 154.6°; the average angle of lateral external rotation was 32.3°; the level of internal rotation and backward extension basically reached level T₁₂ and the muscle strength of forward flexion resistance was 64.0% of the healthy side. Conclusion　Using the modified ‘Chinese-way technique’ under shoulder arthroscopy to repair large to massive rotator cuff tears can obtain a satisfactory clinical treatment effect within 2 years of a follow-up. This method has the characteristics of low threshold, simple and easy operation, but it still needs further prospective, large-sample, multi-center and long-term follow-up studies to verify the long-term effectiveness of the technique.]]> 2020/7/3 15:01:52 LI Bai-chuan, SUN Ke, MO Bing-feng, et al. 4true ［Abstract］　Objective　To compare the clinical effects on treatment of type C distal humeral fractures between perpendicular-plate and parallel-plate fixations. Methods　A retrospective analysis was performed on 79 patients with type C distal humeral fractures who were admitted to our department from February 2016 to February 2019, and the patients were divided into perpendicular fixation group(32 cases) and parallel fixation group(47 cases). Mayo elbow function score was used to compare the clinical efficacy between the two groups. Results　All the patients were followed up for 10～18(12.85±2.26)months, and their fractures healed. In the perpendicular fixation group, the Mayo elbow function score was excellent in 15 cases, good in 12 cases, fair in 4 cases and poor in 1 case, and the excellent and good rate was 84.38%. In the parallel fixation group, the Mayo elbow function score was excellent in 22 cases, good in 17 cases, fair in 6 cases and poor in 2 cases, and the excellent and good rate was 82.98%. The range of motion of the elbow joint was (102.91±15.65)° in the perpendicular fixation group and (103.19±13.57)° in the parallel fixation group, and the difference between the two groups was not statistically significant(P>0.05). Conclusion　Both perpendicular-plate and parallel-plate fixations can achieve satisfactory clinical efficacy for type C distal humeral fractures, and the parallel-plate fixation is more suitable for comminuted fracture of external condyle, low notch fracture and severe osteoporosis.]]> 2020/7/3 15:01:52 HAN Lei, DONG Jing-ming, PAN Chao, et al. 3true ［Abstract］　In recent years, with the development of sports medicine and the deepening of the understanding of hip pain, more and more scholars believe that rotator cuff injury of hip joints is an important cause of hip lateral pain. In this paper, we review the research and clinical diagnosis and treatment of rotator cuff injury of hip joints from the aspects of functional anatomy, biomechanics, clinical manifestation, imaging features, differential diagnosis and treatment.]]> 2020/7/3 15:01:52 LIANG Tao, WU Ying-kai, YIN Qing-feng 2true Methods　The clinical data of all the patients with avulsion fracture of tibial insertion of PCL admitted to our hospital from January 2017 to December 2018 were collected. Among the patients, 28 cases met the inclusion criteria, and the complete follow-up was obtained in 22 cases. The operation time, the amount of bleeding, the knee stability, Lysholm knee score and the knee range of motion were recorded. Results　Twenty-two patients were followed up for 12 to 20 months(an average of 14.8 months). None of the patients had incision infection, fracture nonunion or malunion. At the last follow-up, X-ray showed that all the fractures had bony union. Compared with that before operation(positive results in all the cases, degreeⅠ in 6 cases, degreeⅡ in 12 cases and degreeⅢ in 4 cases), the negative rate of knee back drawer test was significantly elevated at the time of the last follow-up after operation(negative results in 21 cases, degreeⅠ in 1 case)(Z=6.026, P<0.001). The Lysholm knee scores at the last follow-up［(87.27±4.88)points］ were significantly higher than those before surgery［(35.45±5.52)points］(t=32.235, P<0.001). The knee range of motion at the last follow-up［(123.55±3.93)°］ was significantly greater than that before surgery［(44.64±6.26)°］(t=48.951, P<0.001). Conclusion　The treatment of avulsion fracture of tibial insertion of PCL with figure-of-8 suture fixation under arthroscope has the advantages of small incision, small trauma, rapid postoperative recovery and satisfactory short-term clinical effect.]]> 2020/7/3 15:01:52 QIN Zhi, QIN Yu, HUANG Yu-wen, et al. 1true