The Research About The Structure Of The Coracoclavicular Ligemanet Of Native People And Its Clinical Application

The acromioclavicular joint lies subcutaneously. It is constituted of acromion and the lateral of clavicle. This joint is strengthened by the acromioclavicular ligament and the coracoclavicular ligament. Dislocation of the acromioclavicular joint is common in clinical work. It is important for our orthopedists that the structure of the acromioclavicular joint. The purpose of this research is to gain a series of data by anatomical experiments to guide the clinical therapy of dislocation of the acromioclavicular joint, and apply these data in the clinical work.Part oneObjective:To gain a series of data of the structure of the acromioclavicular joint the native people, for guiding the therapy of the dislocation of the acromioclavicular joint.Methods:Survey 40 acromioclavicular joints of 20 adults bodies. Record the distance of the clavicle and the distance from the lateral edge of the clavicle to the medial edge of the conoid tuberosity, the distance to the center of the trapezoid tuberosity, the distance from the dome of coracoid notch to the clavicle. All data were analyzed by spss.Results:The mean length of clavicle is 141±6.1mm, the distance from the lateral edge of the clavicle to the medial edge of the conoid tuberosity in male and female specimens was 45.2±3.6 mm and 41.8±4.7 mm, respectively, the distance to the center of the trapezoid tuberosity was 21.±2.9 mm in males and 20.1±3.4 mm in females. The ratio of the distance to the medial edge of the conoid tuberosity divided by clavicle length was 0.33 in males and females. This ratio for the trapezoid was 0.14 in both sexes, the distance from the dome of coracoid notch to the clavicle is 13mm±1.4mm.Conclusion:While absolute differences in the origin of the ligaments exist among people, the ratio of these origins to total clavicle length is constant. Objective:To guide the clinical therapy of dislocation of the acromioclavicular joint with these data gained from anatomical experiments, and evaluate the therapeutic effect.Methods:From 11-2006 to 7-2009, we used LARS artificial ligaments to treat 8 Tossy III dislocation of the acromioclavicular joint,5 were male and 3 were female, their ages ranged from 21 to 45. Reasons:7 were falling down, lwas traffic accident.Results:All patients received 5-40 monthes follow up, every patient received full reduction. Their shoulders'constant score is 96.5.Conclusion:Artificial ligament has biomechanics advantages, it can maintain the reduction of acromioclavicular joint. It is better than other methods.