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find Author "梅国华" 5 results
  • 无头加压空心螺钉治疗舟状骨骨折的早期疗效

    目的 总结无头加压空心螺钉治疗舟状骨骨折的手术方法及疗效。 方法 2009 年12 月-2010 年5 月,采用切开复位无头加压空心螺钉内固定治疗29 例舟状骨骨折患者。男19 例,女10 例;年龄18 ~ 66 岁,平均42 岁。根据Herbert-Fisher 分型:B1 型10 例,B2 型12 例,B3 型5 例,B4 型2 例。受伤至手术时间2 ~ 7 d,平均4 d。 结 果 术后患者切口均Ⅰ期愈合。22 例获随访,随访时间6 ~ 12 个月,平均9 个月。X 线片检查示术后40 ~ 80 d 骨折达骨性愈合,平均60 d。1 例B4 型患者于术后6 个月影像学检查确诊为舟状骨缺血性坏死。末次随访时腕关节功能较术前显著改善。Mayo 腕关节功能评分,获优14 例,良6 例,中2 例。 结论 无头加压空心螺钉加压固定稳定牢靠,是治疗舟状骨骨折的有效方法之一。

    Release date:2016-08-31 05:44 Export PDF Favorites Scan
  • TREATMENT OF BILATERAL AVASCULAR NECROSIS OF FEMORAL HEAD BY FREE VASCULARIZED FIBULA GRAFTING WITH UNILATERAL FIBULA AS DONOR

    Objective To investigate the effectiveness of free vascularized fibula grafting with unilateral fibula as donor in treatment of bilateral avascular necrosis of femoral head (ANFH). Methods Between June 2007 and January 2008, 14 patients with bilateral ANFH were treated with free vascularized fibula grafting with unilateral fibula as donor. There were 12males and 2 females with an average age of 36.6 years (range, 17-57 years). The necrosis was caused by use of steroids in 3 cases, consumption of alcohol in 4 cases, and idiopathic condition in 7 cases. According to Steinberg system, 16 hips were classified as stage II, 10 hips as stage III, and 2 hips as stage IV. The preoperative Harris hip scores were 77.50 ± 4.19, 69.70 ± 2.76, 59.50 ± 0.50 in patients at stages II, III, and IV, respectively. The duration of operation and the bleeding volume were recorded. The X-ray examination, the Harris hip score, and the compl ications were used to evaluate the effectiveness. Results The duration of the fibula osteotomy was 10-32 minutes (mean, 20 minutes). The duration of the total operation was 100-240 minutes (mean, 140 minutes). The bleeding volume was 200-500 mL (mean, 280 mL). All patients achieved heal ing of incision by first intention. The patients were followed up 12-40 months (mean, 24 months). One case had numbness and hyperthesia of the anterolateral thigh; 1 case had abnormal sensation of the dorsal foot; 1 case had discomfort of the ankle; and they restored to normal at 1 year after operation. According to X-ray films 1 year after operation, the improvement was achieved in 23 hi ps (82.1%) and no deterioration in 5 hips (17.9%). At 1 year after operation, the Harris hip scores were 93.90 ± 4.84, 88.50 ± 8.13, and 78.00 ± 0.00 inpatients at stages II, III, and IV, respectively, showing significant differences when compared with preoperative ones (P lt; 0.05). Conclusion Unilateral free vascularized fibula grafting has lots of virtues, such as short surgical time, less bleeding volume, l ittle injury, and good results of function recovery. It could be an effective and safe method in treating bilateral ANFH.

    Release date:2016-08-31 05:44 Export PDF Favorites Scan
  • DUAL PLATING FIXATION FOR DISTAL FIBULAR COMMINUTED FRACTURES

    ObjectiveTo evaluate the technique and effectiveness of dual plating fixation for distal fibular comminuted fractures. MethodsBetween November 2010 and November 2011, 16 patients with distal fibular comminuted fractures were treated, including 10 males and 6 females with an average age of 49.8 years (range, 35-65 years). All the patients had closed injury, which was caused by sprain in 9 cases, by traffic accident in 5 cases, and by falling in 2 cases. The average interval from injury to admission was 8 hours (range, 1-48 hours). Routine X-ray and CT scan were taken for confirmation of classification and involvement. According to Weber classification system, 11 cases were rated as type A, and 5 as type B; 5 cases had bimalleolar fractures with medial malleolar fracture, and 2 cases had trimalleolar fractures with posterior and medial malleolar fracture. Open reduction and dual plating fixation were performed after swelling was subsided. The X-ray films were taken during follow-up. The effectiveness was evaluated with visual analogue scale (VAS) and American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot and ankle score system at last follow-up. The range of motion (ROM) of the ankle and complications were also been recorded. ResultsDelayed healing of incision occurred in 1 patient with diabetes, who was cured after changing dressing; primary healing was obtained in the other patients. Twelve patients were followed up 18 months on average (range, 12-24 months). Radiographic examination demonstrated the mean time of bone healing was 12 weeks (range, 10-14 weeks). No complication of implant failure, malunion, nonunion, or post-traumatic arthritis occurred during follow-up. The AOFAS hindfoot and ankle score was 79.6±6.5, and the VAS score was 1.3±1.5. The ROM of the ankle was (70.0±8.0)° of flexion and (84.0±5.1)° of extension. ConclusionDual plating fixation for distal fibular comminuted fractures can obtain a rigid stabilization with a low complication incidence, so it is a safe and effective method.

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  • A COMPARATIVE STUDY ON REPAIR OF ACUTE Achilles TENDON RUPTURE USING THREE OPERATING TECHNIQUES

    Objective To compare the effectiveness of the 3 methods (traditional open Achilles tendon anastomosis, minimally invasive percutaneous Achilles tendon anastomosis, and Achilles tendon anastomosis limited incision) for acuteAchilles tendon rupture so as to provide a reference for the choice of cl inical treatment plans. Methods Between December 2007 and March 2010, 69 cases of acute Achilles tendon rupture were treated by traditional open Achilles tendon anastomosis (traditional group, n=23), by minimally invasive percutaneous Achilles tendon anastomosis (minimally invasive group, n=23), and by Achilles tendon anastomosis l imited incision (l imited incision group,n=23). There was no significant difference in gender, age, mechanism of injury, and American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score between 3 groups (P gt; 0.05). Results Minimally invasive group and limited incision group were significantly better than traditional group in hospital ization days and blood loss (P lt; 0.01). Incision infection occurred in 2 cases of traditional group, and healing of incision by first intention was achieved in all patients of the other 2 groups, showing significant difference in the complication rate (P lt; 0.05). Re-rupture of Achilles tendon occurred in 1 case (4.3%) of minimally invasive group and limited incision group respectively; no re-rupture was found in traditional group (0), showing significant difference when compared with the other 2 groups (P lt; 0.05). All cases were followed up 12-18 months with an average of 14.9 months. The function of the joint was restored. The AOFAS score was more than 90 points in 3 groups at 12 months after operation, showing no significant difference among 3 groups (P gt; 0.05). Conclusion The above 3 procedures can be used to treat acute Achilles tendon rupture. However, minimally invasive percutaneous Achilles tendon anastomosis and Achilles tendon anastomosis limited incision have the advantages of less invasion, good heal ing, short hospital ization days, and less postoperative complication, and have the disadvantage of increased risk for re-rupture of Achilles tendon after operations.

    Release date:2016-08-31 04:23 Export PDF Favorites Scan
  • Influence of Infection in Incision of Abdominal Wall on Peritoneal Adhesion

    ObjectiveTo study the influence of infection in incision of abdominal wall on peritoneal adhesion. MethodsOne hundred and twenty white rats were divided into low, medium, high concentration (LC, MC, HC) groups and control group, 30 rats each, and were made animal models of abdominal incision infection, then were respectively given hypodermic injections in incisional wound of 0.2 ml quantitative mixture of Escherichia coli, staphylococcus aureus and pseudomonas aeruginosa in the concentration of 1×102, 1×105 and 1×108 cfu/ml. While the control group,normal saline was given. All the subjects were killed 8 days after operation and compared the peritoneal adhesion among the four groups.ResultsInfection rate of the incisional wounds was 81.48%, 86.67%, 90.00% and 50.00% respectively in LC, MC, HC and the control, peritoneal adhesion rate was 53.33%, 60.00%, 70.00% and 26.67% respectively. There was significant difference between LC and the control (P<0.05), between MC or HC and the control (P<0.01). While no difference was among LC, MC and HC (P>0.05).Conclusion Infection of incision may increase peritoneal adhesion which might not be closely related to the number of the bacteria. This suggests that the prevention of infection plays an important role in preventing peritoneal adhesion.

    Release date:2016-08-28 04:49 Export PDF Favorites Scan
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