ObjectiveTo investigate the short-term effectiveness of minimally invasive percutaneous plate osteosynthesis (MIPPO) in treatment of anterior pelvic ring fractures. MethodsBetween January 2012 and October 2013, 16 patients with anterior pelvic ring fractures were treated with MIPPO. There were 10 males and 6 females at the age of 20-63 years (mean, 41 years). The causes of injury were traffic accident in 9 cases and falling from height in 7 cases. The duration of injury to admission was 2 hours to 5 days (mean, 1 day). According to Tile classification, 8 cases were rated as type B2, 4 cases as type B3, 2 cases as type C1, and 2 cases as type C2. Of them, 2 cases had iliac wing fracture, and 4 cases had pelvic posterior ring fracture. The time from admission to operation was 3-12 days (mean, 6 days). ResultsThe bleeding volume was 60-120 mL (mean, 70 mL). All wounds healed by first intention. No postoperative complication of deep venous thrombosis or long-term continuous pain occurred. All cases were followed up 5-27 months (mean, 11.5 months). No clinical manifestation of lateral femoral cutaneous nerve injury or spermatic cord injury was found, and cremasteric reflex existed in males. All cases obtained bony union, and the healing time was 12-16 weeks (mean, 13 weeks). During the follow-up period, no loss of fracture reduction and no internal fixation loosening or broken were observed. According to Matta radiological evaluation criterion, 16 cases had anatomical reduction, and 3 cases had satisfactory reduction; according to Majeed scoring system of pelvic fracture, the results were excellent in 12 cases and good in 4 cases. ConclusionMIPPO for treatment of anterior pelvic ring fractures has the advantages of less intraoperative blood loss, few soft tissue complications, and low infection rate, and can get satisfactory short-term effectiveness.
ObjectiveTo investigate the feasibility of establishing intervertebral disc degeneration (IDD) model by using minimally invasive acupuncture and rotary-cutting. MethodsForty New Zealand white rabbits [male or female, (2.9±0.3) kg in weight] were randomly divided into control group (n=20) and experimental group (n=20). No treatment was done in the control group; percutaneous puncture was performed on L4, 5 and L5, 6 intervertebral disc by using 18G needle under C-arm X-ray monitoring for rotary-cutting of nucleus pulposus to promote degeneration of the disc in the experimental group. At 4, 8, 12, and 16 weeks after operation, general observation and MRI observation were done, and intervertebral disc degeneration was accessed based on Pfirrmann grade; the specimens were harvested for Masson staining and Safranine O staining. ResultsThe nucleus pulposus showed dark colors and reduced elasticity in the experimental group when compared with the control group. T2-weighted MRI images indicated that the disc signal intensity of control group had no obvious change at early stage, and weakened slightly at late stage; disc signal intensity of the experimental group decreased with time. According to Pfirrmann grade for disc degeneration, disc degeneration degree was significantly aggravated with time in 2 groups (P < 0.05); degeneration was significantly more severe in the experimental group than the control group at the other time points (P < 0.05) except 4 weeks (P > 0.05). Masson staining results showed that irregular arrangement of annulus with integrate structure was observed in the control group with time; the annulus of the experimental group arranged in disorder, or even disc fibrous circle rupture appeared with time. Safranin O staining showed that the nucleus pulposus cells reduced significantly in the experimental group, but did not in the control group. ConclusionMinimally invasive acupuncture and rotary-cutting could successfully establish the IDD model in rabbits.
ObjectiveTo explore the effectiveness of self-made adjustable tractor for correction of inverted ni pple. MethodsBetween March 2005 and March 2011, 37 female patients with inverted ni pples (69 ni pples) underwent continuous traction with self-made adjustable tractor for 2 to 4 months. The age ranged from 18 to 46 years (mean, 23 years). Of 37 cases, 5 had unilateral inverted ni pple, and 32 had bilateral inverted ni pples, including 8 cases (15 ni pples) of mild inversion, 16 cases (30 ni pples) of moderate inversion, and 13 cases (24 ni pples) of severe inversion. The 2 cases (4 ni pples) recurred after traditional surgical method, and 1 case (2 ni pples) had infection because of severe inversion before traction. ResultsNo infection or hemodynamic disorder occurred during traction. All cases were followed up 6-12 months (mean, 8.2 months). Wound healed after traction in 1 patient (2 ni pples) with infection because of severe inversion; 2 recurrent cases (2 ni pples) were cured after re-traction; wire dislocation occurred in 1 case (1 ni pple), and was cured after changing traction position. The shape, sensation, and erectile function were normal after treatment with no scar. ConclusionContinuous traction with selfmade adjustable tractor is a good method for all the types of inverted ni pple. It is a simple, safe, effective, and minimally invasive method without scar.
ObjectiveTo evaluate the advantages and disadvantages of parasternal minimally incision surgery over median sternotomy to treat atrial septal defect (ASD) patients. MethodsWe retrospectively analyzed the clinical data of 55 ASD patients received ASD closure under cardiopulmonary bypass (CPB) in Department of Cardiovascular Surgery, West China Hospital from November 2010 through March 2014. There were 16 males and 39 females with an average age of 25.8 (range, 9-56 years). All the patients were divided into two groups depending on different surgical approach:a median sternotomy group (a MS group, 15 patients)and a parasternal minimally incision group (a PMI group, 40 patients). There was no statistical difference in age, gender, weight, cardiac function classification (NYHA), and atrial septal defect diameter between the two groups (P>0.05). We analyzed the clinical data of the patients and followed up for 6 months. ResultsAfter operation, no death occurred in the two groups. One patient in the MS group prolonged hospitalization due to poor postoperative heart function. One patient in the PMI group prolonged hospitalization because of pulmonary infection. Patients in the PMI group had longer operation time (P=0.007) and cardiopulmonary bypass (CPB) time (P < 0.001), higher cost in hospital (P=0.040), less intraoperative blood loss, less postoperative drainage volume on the first day (both P < 0.001). There was no statistical difference in aortic clamp time (P=0.500) mean hospital stay (P=0.290) after operation between the two groups. To eliminate the interference of the learning curve, there was no statistical difference in operation time (P=0.275) and hospitalization cost (P=0.188) between the two groups. While there was a statistical difference in CPB time between the two groups (P=0.007). There was no remnant shunts or wound complications in the two groups at the end of following up for 6 months. More patients in the PMI group could engage in non-strenuous activities with a statistical difference (P < 0.001). ConclusionParasternal minimally incision in the treatment of atrial septal defect is safe, effective, minimally invasive, with easy operation and shorter learning curve. It can be used as an important part of minimally invasive treatment procedure of congenital heart disease.
Objective To investigate the operative procedure and the therapeutic effects of minimally invasive incision and percutaneous pinning in operative treatment of Gartland type III humeral supracondylar fracture in children. Methods From September 2002 to July 2009, 189 patients with Gartland type III humeral supracondylar fracture were treated with minimally invasive incision and percutaneous pinning. There were 137 males and 52 females, aged from 1 to 13 years (6.2 years on average). Injury was caused by sports in 173 cases, by traffic accident in 9 cases, by fall ing from height in 5 cases, and by earthquake in 2 cases. All fractures were closed fractures, compl icating others fracture in 11 cases, radial nerve injury in 36 cases, median nerve injury in 5 cases, ulnar nerve injury in 2 cases, and brachial artery injuryin 2 cases. The time from injury to hospital ization was 1 hour to 10 days. Neurovascular repair was performed at the same period. Results All incisions healed by first intention, no related compl ications occurred. A total of 143 patients were followed up 5 months to 5 years (12 months on average). X-ray films showed fracture healed within 2-4 months (2.5 months on average). Cubitus varus occurred in 6 cases, but the functions of elbow flexion and extension were good; 2 cases were given distal humeral wedge osteotomy and 4 cases continued keeping the functional training. According to the Flynn et al criteria, the results were excellent in 121 cases, good in 15 cases, and fair in 7 cases; the excellent and good rate was 95.1%. Only a small incision scar was found, the function returned to normal in the cases compl icated by nerve and blood vessel injury. Conclusion Minimally invasive incision and percutaneous pinning for operative treatment of Gartland type III humeral supracondylar fracture in children is a safe and effective surgical procedure, which has minimal trauma, short surgery time, quick recovery, simple operation, and can be effective in reducing the compl ications.
Objective?To approach feasibility, safety, and the application range of pure laparoscopic resection （PLR）, hand-assisted laparoscopic resection （HALR）, and robotic liver resection （RLR） in the minimally invasive liver resection （MILR）. Methods?The clinical data of 128 patients underwent MILR in the Surgical Department of the Shanghai Ruijin Hospital from September 2004 to January 2012 were analyzed retrospectively. According to the different methods, the patients were divided into PLR group, HALR group, and RLR group. The intraoperative findings and postoperative recovery of patients in three groups were compared.?Results?There were 82 cases in PLR group, 3 cases of which were transferred to open surgery；the mean operating time was （145.4±54.4） minutes （range：40-290 minutes）；the mean blood loss was （249.3±255.7） ml （range：30-1 500 ml）；abdominal infection was found in 3 cases and biliary fistula in 5 cases after operation, but all recovered after conservative treatment；the mean length of hospital stay was （7.1±3.8） days （range：2-34 days）. There were 35 cases in HALR group, 3 cases of which were transferred to open surgery；the mean operating time was （182.7±59.2） minutes （range：60-300 minutes）；the mean blood loss was （754.3±785.2） ml （range：50-3 000 ml）；abdominal infection was found in 1 case, biliary fistula in 2 cases, and operative incision infection in 2 cases after operation, but all recovered after conservative treatment；the mean length of hospital stay was （15.4±3.7） days （range：12-30 days）. There were 11 cases in RLR group, 2 cases of which were transferred to open surgery； the mean operating time was （129.5±33.5） minutes （range：120-200 minutes）； the mean blood loss was （424.5±657.5） ml （range：50-5 000 ml）； abdominal infection was found in 1 case and biliary fistula in 1 case after operation, but all recovered after conservative treatment； the mean length of hospital stay was （6.4±1.6） days （range：5-9 days）. The operating time （P=0.001） and length of hospital stay （P=0.000） of the RLR group were shortest and the blood loss （P=0.000） of the PLR group was least among three groups. Conclusions?Minimally invasive resection is a safe and feasible. Different surgical procedures should be chosen according to different cases. The robotic liver resection provides new development for treatment of liver tumor.
ObjectiveTo summarize the clinical application of the minimally invasive step-up approach in the treatment of severe acute pancreatitis (SAP), and to explore the clinical indications, timing for the minimally invasive step-up approach, and to make comparison with open necrosectomy. MethodsThe literatures about the treatment of SAP in recent years were collected to make a review. ResultsThe minimally invasive step-up approach, comparing with open necrosectomy, was more effective to treat SAP, however, itself had its own limitations. In the treatment process, the optimal method was minimally invasive step-up approach, but also did not exclude open necrosectomy. ConclusionsThe treatment of SAP can not rely on a single method, it needs a comprehensive treatment which is relate with multidisciplinary management and highly individual choice. In addition, it needs further study to explore the timing and indications for transforming minimally invasive step-up approach into open necrosectomy.
ObjectiveTo compare the effectiveness of anterior and lateral approaches of minimally invasive plate osteosynthesis (MIPO) in the treatment of humeral shaft fractures. MethodsThe clinical data were retrospectively analyzed and compared from 35 cases of humeral shaft fractures between January 2010 and December 2012. The patients underwent MIPO by anterior approach in 17 patients (group A) and by lateral approach in 18 patients (group B). There was no significant difference in gender, age, injury causes, type of fractures, and time from injury to operation between 2 groups (P>0.05). The operation time, fracture healing time, intra- or postoperative complications, and shoulder and elbow range of motion (ROM) values were recorded and analyzed. The functions of the affected shoulder and elbow were assessed with the University of California Los Angeles (UCLA) and Mayo elbow performance score system respectively. ResultsThe operation time was (91.35±8.00) minutes and (95.56±7.92) minutes in groups A and B respectively, showing no significant difference (t=-1.561, P=0.128). Incision healed by first intention in all patients of 2 groups. No iatrogenic radial nerve palsy occurred in group A, 2 cases had postoperative iatrogenic radial nerve palsy in group B, showing no significant difference (P=0.486). The patients were followed up 15.4 months on average (range, 11-24 months) in group A and 16.8 months on average (range, 10-23 months) in group B. The X-ray films showed bony healing in all patients. The fracture union time was (13.5±2.1) weeks in group A and (14.0±2.2) weeks in group B, showing no significant difference (t=-0.696, P=0.491). The UCLA scores were 33.4±1.9 in group A and 30.6±2.0 in group B, and the Mayo elbow performance scores were 100 in group A and 96.4±2.8 in group B; all showed significant differences (t=4.231, P=0.000; t=5.293, P=0.000). ConclusionGood clinical outcomes could be obtained when humeral shaft fractures are treated with MIPO either by anterior approach or by lateral apporach. However, anterior approach could offer better shoulder and elbow functional results.
ObjectiveTo evaluate clinical curative effect of sphincter preservation method of improved minimally invasive surgery to primary cure for horseshoe-shaped perianal abscess. MethodsOne hundred and twenty hospitalized patients diagnosed as horseshoe-shaped perianal abscess were analyzed by prospective, random, single-blind, parallel-group design method, and were randomly divided into two groups, one group of sphincter preservation method of improved minimally invasive surgery (observation group), another group of traditional method of hanging line drainage and multiple incisions of radian shape (control group). The cure rate, long-term recurrence, postoperative pain score within 9 d, hospitalization time, incision healing time, scar area after healing, postoperative anal function score and perioperative and long-term complications were compared in these two groups. ResultsAll the operations were successfully completed in these two groups. There were 56 cases of primary healing in the observation group and 55 cases of primary healing in the control group. Compared with the control group, the postoperative pain score on day 2-4 or on day 7-9 was lower (P < 0.05), the incision healing time was shorter (P < 0.05), and the postoperative anal function score was lower (P < 0.05) in the observation group. There was no incision infection and hemorrhoea in these two groups. The hospitalization time, scar area after healing, incidence rate of urinary retention, hepatic and renal dysfunction, and the total white blood cells > 10.0×109/L had no significant differences between these two groups (P > 0.05). There was no long-term recurrence, anal stenosis, and anal incontinence during following-up of 6 months in these two groups. ConclusionPreliminary research results show that sphincter preservation method of improved minimally invasive surgery to primary cure for horseshoe-shaped perianal abscess has a reliable clinical curative effect, fast healing, and less postoperative complications.
ObjectiveTo summarize the clinical experience of 180 general surgeries under da Vinci surgical system. MethodsFrom January 2009 to October 2010, 180 patients with hepatopancreaticobiliary and gastrointestinal disease underwent robotic surgeries by using da Vinci surgical system. The case distribution, intra-and post-operative data were analyzed. ResultsA total of 171 patients had underwent total robotic surgeries and nine patients converted to hand-assisted procedure (5.0%, 9/180). The surgery for hepatic portal was performed in 63 cases of patients, including surgery for hilar cholangiocarcinoma in 36 cases, gallbladder carcinoma in 10 cases, complex calculus of intrahepatic duct in 12 cases, and iatrogenic biliary duct injury in 5 cases. The pancreatic surgery was performed in 44 cases of patients, including pancreatoduodenectomy in 16 cases, distal pancreatectomy in 6 cases, medial pancreatectomy in 1 case, pancreatic cyst-jejunum anastomosis in 1 case, and palliative surgery in 20 cases. Hepatic surgery was in 19 cases and gastrointestinal surgery in 12 cases of patients. Other procedures were in 42 cases of patients, including common bile duct exploration and removing the stone, retroperitoneal lymph nodes dissection, and splenectomy, etc. All of ten cases of patients with obstructive suppurative cholangitis received emergency surgery by the robot and postoperative infection symptoms were controlled, and shock was corrected quickly. No death occurred during the perioperative period. Postoperative complications occurred in 12 cases (6.7%, 12/180) and 2 cases died (1.1%, 2/180). Conclusionsda Vinci surgical system can carry out all kinds of general surgery, especially complicated and difficult hepatobiliary and pancreatic surgery, which improves the development of minimally invasive surgery.