Objective To investigate the method and effectiveness of vacuum seal ing drainage (VSD) combined with debridement for treatment of deep infection after hip or knee replacement. Methods Between September 2006 and May 2010, 13 cases of deep infection after joint replacement surgery were treated, including 5 males and 8 females with an average ageof 62.5 years (range, 56-78 years). Infection occurred at 7 days to 1 year and 2 months (median, 14 days) after joint replacement surgery. The time from infection to admission was 8 days to 4 years and 6 months (median, 21 days). Purulent secretion with or without blood were observed in all patients; sinus formed in 5 cases; and unhealing of incision or drainage opening disunion were observed in 8 cases. The size of skin defect at secretion drainage or sinus opening site was 5 mm × 3 mm to 36 mm × 6 mm; the depth of drainage tunnel or sinus was 21-60 mm. The histopathological examination in 11 patients showed acute infection or chronic infection with acute onset in 10 cases, and tuberculosis in 1 case. In 6 cases of secretion culture, Staphylococcus aureus was isolated from 5 cases. After thorough debridement, wound irrigation was performed during the day and VSD during the night in 10 cases. VSD was merely performed in 3 cases. Results In 1 case after revision total hip arthroplasty, the wound bled profusely with VSD, then VSD stopped and associated with compression bandage, VSD proceeded again 3 days later with no heavy bleeding. All the patient were followed up 1 year to 4 years and 5 months (mean, 2 years and 11 months). Infection were controlled 7-75 days (mean, 43 days) after VSD in 10 cases. In these cases, prosthesis were reserved, no recurrent infection was observed, wound were healed, limb function were reserved. VSD was refused in 1 case because of hypersensitive of the pain at the vacuum site, infection control was failed and amputation at the thigh was proceeded. The effect was not evident in 1 case with tuberculosis infection, then the prosthesis was removed and arthrodesis was proceeded followed by complete union. In 1 case, infection was cured with VSD, recurrent infection happened after 9 months, antibiotic-impregnated cement spacer was used at end, and no recurrence was observed 1 year and 4 months later. Conclusion VSD combined with debridement can drainage deep infection sufficiently, promote wound healing, reduce recurrent infection rate, maximize the possibil ity of prosthesis preservation.
目的 探讨自制封闭式负压引流冲洗治疗四肢难愈性创面的护理要点。 方法 对2011年8月－2012年9月收治的38例使用自制封闭式负压引流冲洗+Ⅰ期植皮修复四肢难愈性创面的患者进行护理观察。 结果 34例四肢难愈性创面Ⅰ期成功修复创面，减轻了患者住院期间痛苦，缩短患者治疗时间，住院费用明显下降，4例创面因感染植皮大部分融解，经2次冲洗引流，培养肉芽后再植皮痊愈，无护理并发症发生。 结论 术后患者维持在适应的体位、间歇式冲洗，持续恒定的负压吸引、密切的护理观察和引流管的管理是护理的关键环节。
Objective To evaluate the clinical outcomes of free perforator flaps combined with skin graft for reconstruction of ankle and foot soft tissue defects. Methods Between June 2014 and October 2015, 20 cases of ankle and foot soft tissue defects were treated. There were 16 males and 4 females, aged from 19 to 61 years (mean, 43.3 years). Injury was caused by traffic accident in 7 cases, by crashing in 9 cases, and machine twist in 4 cases. The locations were the ankle in 6 cases, the heel in 3 cases, the dorsum pedis in 4 cases, and the plantar forefoot in 7 cases of avulsion injury after toes amputation. The size of wound ranged from 15 cm×10 cm to 27 cm×18 cm. The time from injury to treatment was from 11 to 52 days (mean, 27 days). The anterolateral thigh perforator flap was used in 11 cases, thoracodorsal antery perforator flap in 3 cases, medial sural artery perforator flap in 4 cases, deep inferior epigastric perforator flap in 1 case, and anteromedial thigh perforator flap in 1 case, including 5 chimeric perforator flaps, 5 polyfoliate perforator flaps, 3 flow-through perforator flaps, and 3 conjoined perforator flaps. The size of the perforator flap ranged from 10.0 cm×6.5 cm to 36.0 cm×8.0 cm, the size of skin graft from 5 cm×3 cm to 18 cm×12 cm. Results Venous crisis occurred in 2 flaps which survived after symptomatic treatment; 18 flaps survived successfully and skin grafting healed well. The follow-up time ranged 4-18 months (mean, 8.3 months). The flaps had good appearance, texture and color, without infection. The patients could walk normally and do daily activities. Only linear scars were observed at the donor sites. Conclusion Free perforator flap can be used to reconstruct defects in the ankle and foot, especially in the weight-bearing area of the plantar forefoot. A combination of free perforator flap and skin graft is ideal in reconstruction of great soft tissue defects in the ankle and foot.
To investigate the method of using vacuum seal ing drainage (VSD) technique to repair the wound of the injured in Wenchuan earthquake and its therapeutic effect. Methods From May 12, 2008 to June 12, 2008, 52 injured persons (83 wounds) were treated, including 27 males and 25 females aged 11-83 years old (average 42 years old). There were 22 cases of crush injury, 9 cases of contusion and laceration injury, 17 cases of compression injury receiving incision decompression of fascia compartment and 4 cases of open amputation. And 37 wounds were on the leg, 13 woundson the thigh, 17 wounds on the forearm, 11 wounds on the upper arm and 5 wounds on the trunk. The wound ranged from3 cm × 2 cm to 30 cm × 15 cm, and the time from injury to undergoing VSD treatment was 12 hours-18 days. After complete debridement, the wound was covered by VSD dressing, and antibiotics were given according to the result of drug sensitive test. When wound infection was under control and granulation tissues grew well, the method of either direct suture or skin grafting or flap transposition was used to repair the wounds. Results In 21 cases (40.4%), wound secretion smear was positive, and multiple species of bacteria were detected, such as staphylococcus aureus, escherichia col i, proteus and klebsiella pneumoniae. After initial operation, 7 injured persons were transferred to the hospital outside of Sichuan province for further treatment. VSD treatment was performed on 33 cases (45 wounds) once, 6 cases (10 wounds) twice, 2 cases (3 wounds) three times and 1 case (1 wound) four times, resulting in the control of wound infection and the growth of granulation tissue. Then the wounds were repaired by either direct suture or skin grafting or flap transposition. Three cases (4 wounds) underwent VSD treatment ten times, leading to the control of infection and the stabil ity of condition. Conclusion VSD treatment can cover the wound promptly, el iminate contamination, prevent secondary infection and benefit late-stage wound repair. During the process of treatment, no medical necessity for frequent change of dressing can rel ieve the pain suffered by the injured and decrease theworkload of medical stuff, thus facil itating the rescue work.