There is still a controversy on the treatment of the incomplete tear of tendons.Some authors insist to suture up, and some prefer not to suture. An animal experiment was performed for this purpose. One hundred twenty tendons of chicken feet were cut transverse and oblique cuts in equal number incompletely into 25%, 50% and 75%, respectively. Sixty tendons on the left feet were sutured up with external P.P. immobilization for 3 weeks while the other 60 tendons on the right feet were not sutured but with simple dressing only. The postoperative results assessed by various methods from functional observation and histological sectionsshowed that the suture group with external immobilization had a definitely superior result than that of the nonsuture group. The tendon cut over 50% was worse than those less than 50%. There was no much difference between whether the cut was transverse or oblique.
In order to study the influence of severity of tendon injury on the morphology of collagen fibers during healing process of extensor tendons, 40 female Wistal rats were used for investigation. The rats were divided into 2 groups. Transection of the tendon of extensor digitorum longus was performed in one group, while partial section of the same tendon was performed in the other group. Morphometric analysis was undertaken on the 15th, 30th, 60th and 90th day after operation. The result was that there was no significant difference between the two groups both in distribution and diameter of collagen fibers on the 15th and 30th days (P gt; 0.05). However, there was significent difference between those on the 60th and 90th days (P lt; 0.05). It was concluded that the severity of the tendon injury could influence the morphology of collagen fibers during the late stage of tendon healing.
Five fresh human forearms removed from cadavers were used to study the vascular concentration of the flexor digital tendons by stereology method. The results showed: (1) The Vv is 0.45%, and Lv is 1.9; (2) The vascular concentration of the flexor digital tendons of different fingers showed no significance statistically; (3) The vascular concentration of the tendons within the digital sheath was less than that outside the digital sheath (plt;0.01); (4) The vascular concentration of the tendons were decreasing gradually form the thum dto litter finger.
In order to understand the influence of the free tendon graft and the tendon transfer on their blood supply, histological and biochemical changes during healing following repair of the damaged tendon after the alteration of the nourishing environment, an experiment was carried on 36 New Zealand white rabbits. In the front paws of the rabbits, the free tendon graft was sutured in the tendon defect of flexor of the fourth toe and the flexor tendon of the third toe was transferred to the second toe to reconstr...
Twenty cases (25 eyes) of severe ptosis were treated with the levator aponeurosis-Muller’s muscle complex combined frontalis suspension. From 6 months to 3 years followingup the results were satisfactory.The surgical procedure was described. The surgical principles, advantages and disadvantages were discussed.
Since 1988, with the aid of the microsurgical technique, circle invagination suture method was adopted to carry out primary repair of injury of the flexor tendon of hand in 30 cases, 54 fingers. The rehabilitative exercises were carried out early after operation. The patients were followed up postoperatively more than 6 months. According to the grading method of TAM for evaluation of the results, the excellentfair rate was 83.3%. This suture method and its advantages were introduced. The importance of atraumatic technique in operation and early ehabilitative excercises in order to prevent tendon adhesion were emphasized .
In order to seek a good method to treat the severe, complex damage of the digital flexor tendon, an anatomical study based on 30 cadavers was done, and the result showed that the source of the blood supply to the palmaris longus tendon was from the radial and ulnar arteries. Three cases of severe complex digital flexor tendon injuries were satisfactory. Its main advantages were: (1) The tendon transplant had its own blood supply and had no need to the revascularization, therefore the adhesion formed between the tendon and adjacent tisues might be less;(2) Besides reparing the tendon defect, it can simultaneously solve the problem of the defect of the soft tissues and the skin.
Since 1989, 17 cases ( 18 fingers) of mallet finger underwent surgical repair of the extensor tendons of the fingers combined with postoperative perpendicular pin transfixion. The follow-up was through 3 to 8 months. The results were 13 satisfactory, 4 improved and one failure. The method of pin transfixion was introduced in detail, and the classification of mallet fingers and the principles of treatment were discussed in detail, and the classification of mallet fingers and the principles of treatment were discussed.
Three cases of common peroneal nerve injuries from sports were reported. All of the three cases were overlooked in their early treatment. The diagnosis was clarified 5 months to 33 years after injury. Because the chance of early repair was lost, they all were treated by tendon transfer with the hope to improve the function of foot. The mechanism of this type of injury and the problems related to the diagnosis and treatment were discussed.