To investigate the significance of activated platelet levels before and after surgical operation in patients with severed finger by severe injury, the P-selectin (CD62p) positive platelet percent in peripheral blood was studied in 32 patients before and after operation by flow cytometric immunology. At the second and third day after operation, seventeen patients, which in a high positive platelet percent, were measured again after anticoagulation treatment with a large dose of urokinase etc. The results were that the levels of CD62p positive platelet in peripheral blood before and after operation were significantly higher than that of the normal group (P lt; 0.01). The CD62p positive platelet percent was increased not much more in the anti-coagulation patients than in the normal ones (P gt; 0.05). There were a few vascular crisis observed. This study suggested that severed fingers by a crushing or wringing injury enhance the platelet activity and resulted in hypercoagulation, thus anti-coagulation measures should be taken to avoid possible thrombosis and improve the survival rate of replantation. CD62p was one of the sensitive indices of activated platelet, which could be used in calculating hypercoagulation accurately.
Objective To study the effect of internal fixation with absorbable intramedullary nail on the treatment of phalange fractures in replantation of severed finger. Methods From September 2001 to October 2003, 28 cases with industrial severed finger (21 males and 7 females, with the age of 18-35 years) were replanted within 1-6 hours. The severed locations were index fingers in 11 cases, middle fingers in 8 cases, ring fingers in 6 cases, little fingers in 3 cases. All cases of phalange fractures were fixed by absorbable intramedullary nails of poly-DL-lactic acid(PDLLA) that combined with chitosan. Out of the 28 cases, 15 cases were with proximal phalange, 11 cases were with middle phalange, 2 cases were with distal phalange. The bone marrow cavity of the phalanges were dilated, then the intramedullary nail was inserted with suitable diameter and length to fix the fracture. Postoperatively resin bandage was applied for 3-4 weeks.Results All the 28 patients survived the performance and postoperative follow-up ranged from 3 to 10 months(4 months in average). Rejection was observed in one case 3 weeks after operation, bone unions were obtained in other cases. According to the Chinese Medical Association’s evaluation standard for replantation of amputated finger, 18 fingers resulted in excellence, 9 fingers in good function and 1 with unsatisfactory function. The excellent and good rate was 96.4%. Conclusion Internal fixation with absorbable intramedullary nail of PDLLA combined with chitosan proves to be effective in the replantation of severed finger.
The comprehensive rehabilitative treatment was used in 58 cases(194 finger)for functional impairment after eplantation. After the treatment the overall increase of flexion-extension range of motion was 30 to 130 degrees respectively. From the assessment of 10 items of daily activities, the patients could accomplish three-fourth of them. the average time taken for the treatment was 3 months with an excellent-good rate about 87.4%. Through the early comprehensive rehabilititive treatment patients could achieve better results.
ObjectiveTo observe the influence of three postoperative analgesia methods on the survival rate of replanted finger by flat digital subtraction angiography (DSA) medical imaging detection system. MethodFrom July 2014 to July 2015, 342 patients were classified into gradeⅠ and gradeⅡ replantation in accordance with their physical condition and they were randomly divided into routine oral group, muscle injection group and analgesia group with 144 patients in each. Flat DSA was used to dynamically observe replantation after revascularization. Then we compared the three different analgesia methods in terms of psychological status of the patients, incidence of vascular crisis, occlusion rate, survival rate of replanted fingers. The function score of replanted fingers was evaluated for clinical efficacy. ResultsCompared with the conventional oral group and muscle injection group, the incidence of vascular crisis in replanted fingers and thrombosis rate were significantly lower in the analgesia group which had a replanted finger survival rate of 96.69% and a normal mental condition rate of 78.07%. Six months after surgery, the rate of excellent and good follow-up was significantly higher than the conventional oral group and muscle injection group (P<0.017) . ConclusionsThe 3-D technology of flat DSA can provide clear and reliable pictures of vessel revascularization status for replanted fingers. The use of continuous brachial plexus analgesia performs better than other methods of analgesia. Good analgesia can stabilize patients' anxiety and negative emotions, which is helpful to avoid excessive fluctuations in blood pressure induced by small artery spasm caused by blood clots and vascular crisis, thereby increasing the survival rate of replanted fingers and facilitating early rehabilitation of their function.
The method of diversion of the arteryvein flow was used for vascular anastomosis in 12 cases undergoing replantation of the severed limbs(fingers)and free tissue transplantations. The results from this method were successful. The efficacy of this method of re-establishment of the blood circulation broadened the indications for replantation and also provided a method of choice in cases when there was impediment of the venous return during tissue transplantation.
ObjectiveTo investigate the treatment outcome of applying venous Flow-through flap in the replantation of severed finger with circularity soft tissue defect and vascular defect. MethodsBetween January 2010 and December 2012,11 cases (11 fingers) of severed finger with circularity soft tissue defect and vascular defect underwent replantation with venous Flow-through flaps.There were 8 males and 3 females,aged 18-42 years (mean,24.6 years).The cause of injury was squeeze injury in 6 cases,crush injury in 3 cases,and strangulation in 2 cases.Combined injuries included nerve defect in 3 cases (1.0,2.0,and 3.5 cm in length),and tendon defect in 2 cases (2.0 and 6.5 cm in length); cyclic skin and soft tissue defect was 3.0-4.5 cm in width,was 1/2-1 finger circumference in length,and was 2.0 cm×1.0 cm to 7.0 cm×4.5 cm in size.Six cases had complete circular defect (both finger artery and vein defects),and 5 cases had incomplete circular defect (only finger artery defect),and vascular defect was 1.0-4.5 cm in length.The time from injury to operation was 1.5-4.5 hours. ResultsVenous crisis occurred in 1 case at 2 days after operation,was cured after vein graft; flap edge necrosis was observed in 2 cases and was cured after dressing change and skin grafting respectively; flap edema and blister occurred in 2 cases and relieved spontaneously.The other 6 flaps and replanted fingers survived completely,with primary healing of incision.Ten cases were followed up 12-18 months (mean,15.5 months).Only a linear scar was seen at the donor sites,with no functional limitation.The flaps had similar color and texture to adjacent skin.The two-point discrimination was 6.5-13.0 mm (mean,8.6 mm).According to replanted finger function scoring system of Society of Hand Surgery of Chinese Medical Association,the results were excellent in 6 cases,good in 3 cases,and poor in 1 case at last follow-up,and the excellent and good rate was 90%. ConclusionVenous Flow-through flap can repair both vascular defect and soft tissue defect,so it has good outcome in increasing the survival rate of replanted finger for severed finger replantation with circularity soft tissue defect and vascular defect.