ObjectiveTo investigate the safety, feasibility, and efficacy of full repair strategy under small incision in the treatment of closed Lauge-Hansen pronation-external rotation type Ⅳ ankle fracture.MethodsThe clinical data of 57 patients with closed Lauge-Hansen pronation-external rotation type Ⅳ ankle fracture treated by full repair strategy (fracture, ligament, and cartilage repair) under small incision between January 2012 and January 2017 were retrospectively analyzed. There were 31 males and 26 females, with an average age of 41.1 years (range, 21-65 years). The causes of injury included traffic accident injury in 33 cases and falling injury in 24 cases. All of them were closed fractures, including 20 cases of medial malleolus fracture, 37 cases of complete medial malleolus but deep and shallow rupture of deltoid ligament. The average time from injury to admission was 9.6 hours (range, 3-34 hours). The quality of reduction of distal tibial articular surface (based on Ketz-Sanders standard), the reduction of tibiofibular syndesmosis (the anterior and posterior distances of distal tibiofibular syndesmosis and the lateral ankle twist angle measured by CT scan at 10 mm above the ankle joint line), and the fracture healing were evaluated. The medial clear space (MCS), tibiofibular clear space (TFCS), and distal fibular tip to lateral process of talus (DFTL) were measured on the X-ray films of ankle points. Before and after operation, the pain and functional improvement of ankle joint were evaluated by visual analogue scale (VAS) score and American Orthopedic Foot and Ankle Association (AOFAS) score, and the activities of ankle dorsiflexion and plantar flexion were measured.ResultsThree cases with osteochondral lesions of the talus were found during operation and all were treated with microfracture techniques. Tournament paralysis occurred in 2 cases after anesthesia. The surgical incisions healed by first intention in all patients. All the 57 patients were followed up 24-84 months, with an average of 38.6 months. All patients achieved bone healing without bone nonunion and malunion at 12 months after operation. The reduction quality of distal tibial articular surface was excellent in 56 cases and good in 1 case at 3 months after operation, the excellent and good rate was 100%. There was no significant difference in the MCS, TFCS, DFTL, anterior distance of distal tibiofibular syndesmosis, posterior distance of distal tibiofibular syndesmosis, and lateral ankle twist angle between the affected and healthy sides at 12 months after operation (P>0.05). At last follow-up, the VAS score, AOFAS score, ankle dorsiflexion and plantar flexion activities of the affected side were significantly improved when compared with preoperative ones (P<0.05). Compared with the healthy side, there was no significant difference in ankle dorsiflexion and plantar flexion activities (P>0.05).ConclusionFull-repair strategy under small incisions for the treatment of Lauge-Hansen pronation-external rotation type Ⅳ ankle fracture is effective and safe. It can not only reduce wound complications, but also improve the quality of joint reduction of the ankle joint and distal tibiofibular syndesmosis. Full repair of ligaments and cartilage can improve the internal fixation strength and joint stability of the ankle joint.
Objective To develop an automatic diagnostic tool based on deep learning for lumbar spine stability and validate diagnostic accuracy. Methods Preoperative lumbar hyper-flexion and hyper-extension X-ray films were collected from 153 patients with lumbar disease. The following 5 key points were marked by 3 orthopedic surgeons: L4 posteroinferior, anterior inferior angles as well as L5 posterosuperior, anterior superior, and posterior inferior angles. The labeling results of each surgeon were preserved independently, and a total of three sets of labeling results were obtained. A total of 306 lumbar X-ray films were randomly divided into training (n=156), validation (n=50), and test (n=100) sets in a ratio of 3∶1∶2. A new neural network architecture, Swin-PGNet was proposed, which was trained using annotated radiograph images to automatically locate the lumbar vertebral key points and calculate L4, 5 intervertebral Cobb angle and L4 lumbar sliding distance through the predicted key points. The mean error and intra-class correlation coefficient (ICC) were used as an evaluation index, to compare the differences between surgeons’ annotations and Swin-PGNet on the three tasks (key point positioning, Cobb angle measurement, and lumbar sliding distance measurement). Meanwhile, the change of Cobb angle more than 11° was taken as the criterion of lumbar instability, and the lumbar sliding distance more than 3 mm was taken as the criterion of lumbar spondylolisthesis. The accuracy of surgeon annotation and Swin-PGNet in judging lumbar instability was compared. Results ① Key point: The mean error of key point location by Swin-PGNet was (1.407±0.939) mm, and by different surgeons was (3.034±2.612) mm. ② Cobb angle: The mean error of Swin-PGNet was (2.062±1.352)° and the mean error of surgeons was (3.580±2.338)°. There was no significant difference between Swin-PGNet and surgeons (P>0.05), but there was a significant difference between different surgeons (P<0.05). ③ Lumbar sliding distance: The mean error of Swin-PGNet was (1.656±0.878) mm and the mean error of surgeons was (1.884±1.612) mm. There was no significant difference between Swin-PGNet and surgeons and between different surgeons (P>0.05). The accuracy of lumbar instability diagnosed by surgeons and Swin-PGNet was 75.3% and 84.0%, respectively. The accuracy of lumbar spondylolisthesis diagnosed by surgeons and Swin-PGNet was 70.7% and 71.3%, respectively. There was no significant difference between Swin-PGNet and surgeons, as well as between different surgeons (P>0.05). ④ Consistency of lumbar stability diagnosis: The ICC of Cobb angle among different surgeons was 0.913 [95%CI (0.898, 0.934)] (P<0.05), and the ICC of lumbar sliding distance was 0.741 [95%CI (0.729, 0.796)] (P<0.05). The result showed that the annotating of the three surgeons were consistent. The ICC of Cobb angle between Swin-PGNet and surgeons was 0.922 [95%CI (0.891, 0.938)] (P<0.05), and the ICC of lumbar sliding distance was 0.748 [95%CI(0.726, 0.783)] (P<0.05). The result showed that the annotating of Swin-PGNet were consistent with those of surgeons. ConclusionThe automatic diagnostic tool for lumbar instability constructed based on deep learning can realize the automatic identification of lumbar instability and spondylolisthesis accurately and conveniently, which can effectively assist clinical diagnosis.
ObjectiveTo investigate the clinical effect of Maze Ⅳ in the treatment of elderly patients with valvular heart disease and persistent atrial fibrillation (AF).MethodsWe retrospectively analyzed the clinical data of 78 elderly patients with cardiac valve disease combined with persistent AF in our hospital from 2017 to 2018. The patients were allocated to two groups including a trial group (n=37) and a control group (n=41). There were 21 males and 16 females aged 61 to 74 (65.2±2.5) years in the trial group. There were 23 males and 18 females aged 62 to 76 (64.8±3.3) years in the control group. The clinical effects of the two groups were compared.ResultsThere was no statistical difference in baseline data between the two groups (P>0.05). The aortic occlusion time, extracorporeal circulation time, and operation time of the trial group were longer than those of the control group with statistical differences (P<0.05). There was no statistical difference in postoperative ventilator assistance time, complication rate, mortality, ICU retention time, perioperative drainage, red blood cell transfusion volume, or length of hospital stay between the two groups (P>0.05). At the time of discharge, postoperaive 1-month, 3-month, 6-month, and 12-month, the maintenance rates of sinus rhythm in the control group were statistically different from those of the trial group (P<0.05). Compared with the control group, left atrial diameter, left ventricular end diastolic diameter and the decrease of pulmonary artery systolic blood pressure were statistically different (P<0.05).ConclusionMaze Ⅳ is safe and effective in the treatment of elderly patients with valvular heart disease and persistent AF, which is conducive to the recovery and maintenance of sinus rhythm, and is beneficial to the remodeling of the left atrium and left ventricle and the reduction of pulmonary systolic blood pressure with improvement of life quality of the patients.
Objective To explore the clinical efficacy of external fixation combined with autogenous periosteal iliac bone for repairing cartilage injury of the talus. Methods The data of 18 patients with talus cartilage injury treated in Mianyang Central Hospital between January 2018 and January 2022 were retrospectively analyzed. All patients received autogenous periosteal iliac bone transplantation and external fixation brackets. The Visual Analogue Scale (VAS), joint range of motion, and the American Orthopedic Foot and Ankle Society (AOFAS) ankle posterior foot score were assessed before surgery and 6 months after surgery. The changes of cartilage damage of the talus on MRI before and after surgery were compared. The complications related to the operation were recorded. Results The patients included 5 males and 13 females, with an average age of (50.7±5.4) years. There were 6 cases injured on the left side and 12 cases injured on the right side. The Hepple’s classification was type Ⅲ in 8 cases and type Ⅳ in 10 cases. The average follow-up time was (17.6±8.2) months. The preoperative VAS score, ankle range of motion, and AOFAS score were 5.5±1.5, (48.0±10.5)°, and 54.9±11.1, respectively. Six months after surgery, the VAS score, ankle range of motion, and AOFAS score were 2.1±0.9, (64.8±7.8)°, and 82.6±8.7, respectively, and the differences from preoperative scores were all statistically significant (P<0.05). The preoperative MRI showed that the area of talus cartilage injury was (2.6±0.6) cm2, and the depth was (10.0±0.4) mm; the 1-year follow-up MRI showed that the area of talus cartilage injury was (0.6±0.2) cm2, and the depth was (5.5±0.3) mm, which statistically differed from those before surgery (P<0.05). By the last follow-up, no postoperative complications such as incision infection, bone graft fracture, and nonunion of the inner ankle were found. Conclusions Autogenous periosteal iliac bone graft can repair cartilage injury of the talus. External fixation stent provides early joint stability, avoiding uneven joint compression or joint impact.
【摘要】 目的 總結應用經皮微創鋼板固定（minimally invasive percutaneous plate osteosynthesis，MIPPO）技術治療2型糖尿病患者脛骨遠端骨折的臨床經驗及治療效果。 方法 2007年5月-2010年11月，采用MIPPO技術治療2型糖尿病合并脛骨遠端骨折15例。其中男9例，女6例；年齡38~70歲，平均60歲。左側脛骨遠端骨折 4例，右側 11例。單發骨折10例，多發骨折5例。根據 AO分型:A1型2例，A2型1例，A3型5例，B1型3例，B3型3例，C1型1例。傷后至手術時間為2~14 d。 結果 15例患者隨訪時間8~12個月，平均10個月。手術時間平均89 min，術中失血量平均285 mL。術后1年采用Johner-Wruhs方法評估療效:優4例，良5例，中3例，差3例；總體滿意率80%。X線片示13例患者骨折均獲骨性愈合，愈合時間4~8個月，平均6個月，無再發骨折。3例發生泌尿系統感染，1例發生呼吸系統感染，感染率26.7%。 結論 MIPPO技術治療2型糖尿病脛骨近端骨折具有對骨折周圍軟組織剝離少、符合生物學固定概念、內固定牢靠、切口較小等優點，降低了切開復位內固定術后并發癥的發生率。【Abstract】 Objective To summarize the clinical experiences and effects of minimally invasive percutaneous plate osteosynthesis (MIPPO) technique for type 2 diabetic patients with fractures of distal tibia. Methods From May 2007 to November 2010, 15 type 2 diabetic patients with distal tibia fractures including 9 males and 6 females were treated with minimally invasive percutaneous plate osteosynthesis. Their age ranged from 38 to 70 years old averaging at 60. Left distal tibia fracture occurred to 4 cases, and right distal tibia fracture occurred to 11 cases. Ten patients had single fracture, and 5 had multiple fractures. According to AO fracture classification, there were two cases of A1, one cases of A2, five cases of A3, three cases of B1 and B3 respectively, and two cases of C1. The time from the occurrence of fracture to operation was ranged from 2 to 14 days. Results The patients were followed up for 8 to 12 months with an average period of ten months. The average operation time was 89 minutes and perioperative blood loss was (285±38) mL. Johner-Wruhs method was used to evaluate the efficacy. Four cases were excellent, 5 were good, 3 were fair, and 3 were poor, with an overall satisfaction rate of 80%. X-ray showed that 13 patients were healed. The healing time was 4 to 8 months, averaging 6 months, and no further fractures occurred. There were 3 cases of urinary tract infection and 1 case of respiratory infection with an infection rate of 26.7%. Conclusion Minimally invasive percutaneous plate osteosynthesis technique for fractures of distal tibia in diabetic patients is a safe method with better mechanical stability, less intervention of blood supply, less soft tissue complications and smaller incisions.
ObjectiveTo develop a score system to predict the probability of failure of monotherapy in epilepsy patients with initial treatment, and then provide pillars for early use of polytherapy.MethodsThis is a retrospective analysis of the clinical data of 189 patients with epilepsy treated in Department of Neurology, the Third Xiangya Hospital of Central South University from January 2019 to July 2020. Patients were divided into monotherapy acceptable group and monotherapy poor effect group according to their drug treatment plan and drug efficacy. The influencing factors were screened out by single factor analysis and binary logistic regression analysis. And on the basis of this β value, a quantitative scoring table for predicting the unsatisfying treatment effect of monotherapy is developed. And the receiver operating curve (ROC curve) was used to evaluate the effectiveness of the scale.ResultsBased on a standard of 75% reduction in seizures during the observation period, 138 cases (73%) were effective with monotherapy plan, while 51 cases (23%) were unsatisfactory. Regression analysis showed that multiple forms of seizures, status epilepticus (t2), brain damage, and the number of seizures ≥ 7 times before treatment are independent risk factors for poor outcome of monotherapy. The resulting score sheet has a total score of 12 points; the area under the ROC curve is 0.779, and the critical score is 6 points (sensitivity: 0.314; specificity: 0.957). Patients with more than this score have a strong probability of poor response in monotherapy.ConclusionThis prediction model can effectively assess the risk of unsatisfactory therapeutic effect of monotherapy in epilepsy patients who are initially treated, and thus has reference function for the early selection of polytherapy.
