Introduction: Acromioclavicular (AC) joint dislocation is a common shoulder injury, comprising 9% - 12% of shoulder girdle injuries. Optimal management remains challenging, with treatment decisions guided by the Rockw...Introduction: Acromioclavicular (AC) joint dislocation is a common shoulder injury, comprising 9% - 12% of shoulder girdle injuries. Optimal management remains challenging, with treatment decisions guided by the Rockwood classification system. Controversies surround grade III injuries, necessitating further classification. Non-operative treatment has shown favorable outcomes, while surgical interventions vary. Anatomical coracoclavicular reconstruction (ACCR) has demonstrated biomechanical advantages over traditional methods. Arthroscopic techniques offer advantages, minimizing deltoid detachment and allowing concurrent pathology identification. This study evaluates the outcomes of arthroscopic-assisted ACCR in chronic AC joint dislocation. Surgical Technique: Arthroscopic-assisted ACCR involves meticulous portal placement, tendon graft harvesting, diagnostic arthroscopy, and coracoid exposure. The clavicle tunnels were made to mimic the conoid and trapezoid ligament positions, using FibreTape#2 loop and Dog Bone Button for correct placement against the coracoid base, and passing the semitendinosus graft through to reconstruct the conoid ligament, reduction done and graft follow through for anatomical reconstruction. Methods: A retrospective cohort study at Hospital Kuala Lumpur analyzed 35 patients undergoing arthroscopic-assisted ACCR for Rockwood grade III - V AC joint dislocations. Inclusion criteria encompassed trauma ≥ 3 weeks prior, no prior shoulder injuries, and ≥12-month follow-up. Functional and radiological assessments utilized ASES scores and coracoclavicular distances, respectively. Statistical analysis employed descriptive statistics and logistic regression. Results: The mean age was 38.9 years (SD 11.26), and 34 of 35 patients were male. Grade IV injuries were predominant (37.1%). Waiting time for surgery averaged 234.9 days. Functional improvement was substantial postoperatively (ASES: 55.5 to 88.9). Radiological outcomes demonstrated reduced coracoclavicular distances and maintained reduction. No significant correlation was observed between injury grade and outcomes. Conclusion: Arthroscopic-assisted ACCR for chronic AC joint dislocation yields significant functional and radiological improvement, irrespective of injury grade. Waiting time for surgery exhibits minor impact on outcomes, emphasizing the procedure’s efficacy. Concomitant injuries do not impede success, highlighting the versatility of this approach in managing shoulder instability. The study contributes valuable insights into the nuanced management of chronic AC joint dislocations and supports the adoption of arthroscopic-assisted ACCR as a viable treatment option.展开更多
Objective To compare the difference in stability of the knee joint after single-tunnel double-bundle and single-bundle anterior cruciate ligament (ACL) reconstruction.Methods Six formalin-soaked specimens of the human...Objective To compare the difference in stability of the knee joint after single-tunnel double-bundle and single-bundle anterior cruciate ligament (ACL) reconstruction.Methods Six formalin-soaked specimens of the human knee with retained展开更多
Background Several techniques have been described for posterior cruciate ligament （PCL） reconstruction. However, double-bundle PCL reconstruction using the quadruple bone-tunnel technique has been seldom reported. T...Background Several techniques have been described for posterior cruciate ligament （PCL） reconstruction. However, double-bundle PCL reconstruction using the quadruple bone-tunnel technique has been seldom reported. The current study investigated this technique, focusing on the anatomy of the femoral and tibial insertions of the anterolateral （AL） and posteromedial （PM） bundles of the PCL. Methods Twenty-two fresh, healthy adult cadaveric knees were dissected and measured. The PCL was divided into the AL bundle and PM bundle at the insertion footprint. The insertion footprints of the AL and PM bundles, their location, size, and the clock positions were measured and described. Results On the femur, the clock position of the footprint of the AL bundle was 11：21＋0：23 （left） or 0：39＋0：23 （right）, and the PM bundle was 9：50＋0：18 （left） or 2：10＋0：18 （right）, with the knee flexed at 90 degrees. The distances from the center of the femoral insertions of the AL and PM bundles to the anterior cartilage margins of the medial femoral condyle were （7.79＋1.22） mm and （8.36＋1.63） mm, respectively. On the tibia, the vertical distances from the center of the tibial insertions of the AL and PM bundles to the tibial articular surface were （3.25＋1.20） mm and （6.91＋1.57） mm, respectively. Conclusions These results have led to a better definition of the anatomy of the AL and PM bundle footprint of the PCL. The technique of double-bundle PCL reconstruction using quadruple bone-tunnel is feasible. Application of these data during PCL reconstruction using the quadruple bone-tunnel technique may help optimize knee stability.展开更多
目的:比较双袢与“Y”形三袢TightRope纽扣钢板内固定治疗新鲜RockwoodⅢ~Ⅴ型肩锁关节脱位的临床疗效及安全性。方法:回顾性分析2016年1月至2019年5月收治的74例肩锁关节脱位患者的病例资料,其中采用双袢TightRope纽扣钢板内固定治疗...目的:比较双袢与“Y”形三袢TightRope纽扣钢板内固定治疗新鲜RockwoodⅢ~Ⅴ型肩锁关节脱位的临床疗效及安全性。方法:回顾性分析2016年1月至2019年5月收治的74例肩锁关节脱位患者的病例资料,其中采用双袢TightRope纽扣钢板内固定治疗者43例(双袢组),采用“Y”形三袢TightRope纽扣钢板内固定治疗者31例(三袢组)。比较2组患者的手术时间、喙锁间距差值、肩部疼痛视觉模拟量表(visual analogue scale,VAS)评分、加州大学洛杉矶分校(University of California Los Angeles,UCLA)肩关节量表评分、Constant-Murley肩关节评分及并发症发生率。结果:双袢组的手术时间短于三袢组[(31.37±4.03)min,(50.94±5.66)min,t=17.387,P=0.000)]。术后6周、24周、1年以及末次随访时,双袢组的喙锁间距差值均高于三袢组[(1.60±1.76)mm,(0.26±0.23)mm,t=4.220,P=0.000;(2.11±2.11)mm,(0.31±0.31)mm,t=4.695,P=0.000;(2.19±2.19)mm,(0.38±0.37)mm,t=4.536,P=0.000;(2.21±2.21)mm,(0.40±0.39)mm,t=4.499,P=0.000]。末次随访时,2组患者的肩部疼痛VAS评分均较术前降低(t=32.538,P=0.000;t=24.849,P=0.000),2组患者的肩部疼痛VAS评分比较,差异无统计学意义[(0.56±0.70)分,(0.55±0.72)分,t=0.058,P=0.954]。末次随访时,2组患者的UCLA肩关节量表评分均较术前增高(t=-108.72,P=0.000;t=-52.267,P=0.000),双袢组的UCLA肩关节量表评分低于三袢组[(47.02±1.71)分,(49.32±2.77)分,t=-2.490,P=0.015]。末次随访时,2组患者的Constant-Murley肩关节评分均较术前增高(t=-63.617,P=0.000;t=-67.607,P=0.000),双袢组的Constant-Murley肩关节评分低于三袢组[(94.58±2.70)分,(94.61±3.12)分,t=-2.135,P=0.036]。双袢组2例发生锁骨骨溶解,三袢组1例发生切口感染。2组患者并发症发生率比较,差异无统计学意义(P=1.000)。结论:双袢与“Y”形三袢TightRope纽扣钢板内固定治疗新鲜RockwoodⅢ~Ⅴ型肩锁关节脱位,均能减轻肩关节疼痛,但双袢固定的手术时间更短、“Y”形三袢固定的肩关节功能恢复得更好。展开更多
Purpose:Iatrogenic coracoid and clavicle fracture is a known complication of drilling bone tunnels during anatomic coracoclavicular ligament reconstruction(ACCR).This study aims to measure the dimensions of coracoid p...Purpose:Iatrogenic coracoid and clavicle fracture is a known complication of drilling bone tunnels during anatomic coracoclavicular ligament reconstruction(ACCR).This study aims to measure the dimensions of coracoid process and clavicle in an Asian population to evaluate the suitability of drilling coracoid and clavicle tunnels for ACCR in Asians.Methods:Width measurements of 196 coracoids and 189 clavicles were obtained after reviewing all computed tomography(CT)scans of the shoulder performed over a 6 years period.Coracoid measurements were made on the CT slice which showed the maximum cross sectional width of the coracoid base.Medial to lateral measurements of the coracoid width were taken on an axial view,4 mm above the identified junction of the coracoid base and glenoid base.Antero-posterior clavicle width was measured through a point directly above the midpoint of the coracoid and perpendicular to the long axis of the clavicle.Results:The overall mean coracoid width was 14.8 mm±2.54 mm(range 9.2e23.3 mm)and clavicle width was 17.1 mm±2.72 mm(range 11.1e25.3 mm).Conclusion:The Asian coracoid process is smaller than its Western equivalent.More research is required to validate this conclusion as no cadaveric studies with equivalent measurement techniques have been performed on Asians.Given the potentially narrower dimensions of the Asian coracoid process,extra precautions are required to minimize the risk of iatrogenic coracoid and clavicle fractures.展开更多
文摘Introduction: Acromioclavicular (AC) joint dislocation is a common shoulder injury, comprising 9% - 12% of shoulder girdle injuries. Optimal management remains challenging, with treatment decisions guided by the Rockwood classification system. Controversies surround grade III injuries, necessitating further classification. Non-operative treatment has shown favorable outcomes, while surgical interventions vary. Anatomical coracoclavicular reconstruction (ACCR) has demonstrated biomechanical advantages over traditional methods. Arthroscopic techniques offer advantages, minimizing deltoid detachment and allowing concurrent pathology identification. This study evaluates the outcomes of arthroscopic-assisted ACCR in chronic AC joint dislocation. Surgical Technique: Arthroscopic-assisted ACCR involves meticulous portal placement, tendon graft harvesting, diagnostic arthroscopy, and coracoid exposure. The clavicle tunnels were made to mimic the conoid and trapezoid ligament positions, using FibreTape#2 loop and Dog Bone Button for correct placement against the coracoid base, and passing the semitendinosus graft through to reconstruct the conoid ligament, reduction done and graft follow through for anatomical reconstruction. Methods: A retrospective cohort study at Hospital Kuala Lumpur analyzed 35 patients undergoing arthroscopic-assisted ACCR for Rockwood grade III - V AC joint dislocations. Inclusion criteria encompassed trauma ≥ 3 weeks prior, no prior shoulder injuries, and ≥12-month follow-up. Functional and radiological assessments utilized ASES scores and coracoclavicular distances, respectively. Statistical analysis employed descriptive statistics and logistic regression. Results: The mean age was 38.9 years (SD 11.26), and 34 of 35 patients were male. Grade IV injuries were predominant (37.1%). Waiting time for surgery averaged 234.9 days. Functional improvement was substantial postoperatively (ASES: 55.5 to 88.9). Radiological outcomes demonstrated reduced coracoclavicular distances and maintained reduction. No significant correlation was observed between injury grade and outcomes. Conclusion: Arthroscopic-assisted ACCR for chronic AC joint dislocation yields significant functional and radiological improvement, irrespective of injury grade. Waiting time for surgery exhibits minor impact on outcomes, emphasizing the procedure’s efficacy. Concomitant injuries do not impede success, highlighting the versatility of this approach in managing shoulder instability. The study contributes valuable insights into the nuanced management of chronic AC joint dislocations and supports the adoption of arthroscopic-assisted ACCR as a viable treatment option.
文摘Objective To compare the difference in stability of the knee joint after single-tunnel double-bundle and single-bundle anterior cruciate ligament (ACL) reconstruction.Methods Six formalin-soaked specimens of the human knee with retained
文摘Background Several techniques have been described for posterior cruciate ligament （PCL） reconstruction. However, double-bundle PCL reconstruction using the quadruple bone-tunnel technique has been seldom reported. The current study investigated this technique, focusing on the anatomy of the femoral and tibial insertions of the anterolateral （AL） and posteromedial （PM） bundles of the PCL. Methods Twenty-two fresh, healthy adult cadaveric knees were dissected and measured. The PCL was divided into the AL bundle and PM bundle at the insertion footprint. The insertion footprints of the AL and PM bundles, their location, size, and the clock positions were measured and described. Results On the femur, the clock position of the footprint of the AL bundle was 11：21＋0：23 （left） or 0：39＋0：23 （right）, and the PM bundle was 9：50＋0：18 （left） or 2：10＋0：18 （right）, with the knee flexed at 90 degrees. The distances from the center of the femoral insertions of the AL and PM bundles to the anterior cartilage margins of the medial femoral condyle were （7.79＋1.22） mm and （8.36＋1.63） mm, respectively. On the tibia, the vertical distances from the center of the tibial insertions of the AL and PM bundles to the tibial articular surface were （3.25＋1.20） mm and （6.91＋1.57） mm, respectively. Conclusions These results have led to a better definition of the anatomy of the AL and PM bundle footprint of the PCL. The technique of double-bundle PCL reconstruction using quadruple bone-tunnel is feasible. Application of these data during PCL reconstruction using the quadruple bone-tunnel technique may help optimize knee stability.
文摘目的:比较双袢与“Y”形三袢TightRope纽扣钢板内固定治疗新鲜RockwoodⅢ~Ⅴ型肩锁关节脱位的临床疗效及安全性。方法:回顾性分析2016年1月至2019年5月收治的74例肩锁关节脱位患者的病例资料,其中采用双袢TightRope纽扣钢板内固定治疗者43例(双袢组),采用“Y”形三袢TightRope纽扣钢板内固定治疗者31例(三袢组)。比较2组患者的手术时间、喙锁间距差值、肩部疼痛视觉模拟量表(visual analogue scale,VAS)评分、加州大学洛杉矶分校(University of California Los Angeles,UCLA)肩关节量表评分、Constant-Murley肩关节评分及并发症发生率。结果:双袢组的手术时间短于三袢组[(31.37±4.03)min,(50.94±5.66)min,t=17.387,P=0.000)]。术后6周、24周、1年以及末次随访时,双袢组的喙锁间距差值均高于三袢组[(1.60±1.76)mm,(0.26±0.23)mm,t=4.220,P=0.000;(2.11±2.11)mm,(0.31±0.31)mm,t=4.695,P=0.000;(2.19±2.19)mm,(0.38±0.37)mm,t=4.536,P=0.000;(2.21±2.21)mm,(0.40±0.39)mm,t=4.499,P=0.000]。末次随访时,2组患者的肩部疼痛VAS评分均较术前降低(t=32.538,P=0.000;t=24.849,P=0.000),2组患者的肩部疼痛VAS评分比较,差异无统计学意义[(0.56±0.70)分,(0.55±0.72)分,t=0.058,P=0.954]。末次随访时,2组患者的UCLA肩关节量表评分均较术前增高(t=-108.72,P=0.000;t=-52.267,P=0.000),双袢组的UCLA肩关节量表评分低于三袢组[(47.02±1.71)分,(49.32±2.77)分,t=-2.490,P=0.015]。末次随访时,2组患者的Constant-Murley肩关节评分均较术前增高(t=-63.617,P=0.000;t=-67.607,P=0.000),双袢组的Constant-Murley肩关节评分低于三袢组[(94.58±2.70)分,(94.61±3.12)分,t=-2.135,P=0.036]。双袢组2例发生锁骨骨溶解,三袢组1例发生切口感染。2组患者并发症发生率比较,差异无统计学意义(P=1.000)。结论:双袢与“Y”形三袢TightRope纽扣钢板内固定治疗新鲜RockwoodⅢ~Ⅴ型肩锁关节脱位,均能减轻肩关节疼痛,但双袢固定的手术时间更短、“Y”形三袢固定的肩关节功能恢复得更好。
文摘Purpose:Iatrogenic coracoid and clavicle fracture is a known complication of drilling bone tunnels during anatomic coracoclavicular ligament reconstruction(ACCR).This study aims to measure the dimensions of coracoid process and clavicle in an Asian population to evaluate the suitability of drilling coracoid and clavicle tunnels for ACCR in Asians.Methods:Width measurements of 196 coracoids and 189 clavicles were obtained after reviewing all computed tomography(CT)scans of the shoulder performed over a 6 years period.Coracoid measurements were made on the CT slice which showed the maximum cross sectional width of the coracoid base.Medial to lateral measurements of the coracoid width were taken on an axial view,4 mm above the identified junction of the coracoid base and glenoid base.Antero-posterior clavicle width was measured through a point directly above the midpoint of the coracoid and perpendicular to the long axis of the clavicle.Results:The overall mean coracoid width was 14.8 mm±2.54 mm(range 9.2e23.3 mm)and clavicle width was 17.1 mm±2.72 mm(range 11.1e25.3 mm).Conclusion:The Asian coracoid process is smaller than its Western equivalent.More research is required to validate this conclusion as no cadaveric studies with equivalent measurement techniques have been performed on Asians.Given the potentially narrower dimensions of the Asian coracoid process,extra precautions are required to minimize the risk of iatrogenic coracoid and clavicle fractures.
