ObjectiveTo review the research progress on intra-articular screw penetration in proximal humeral fracture treated with locking plate. MethodsThe domestic and foreign literature about the proximal humeral fracture treated with locking plate was extensively reviewed. The incidence of screw penetration and risk factors were summarized from both primary and secondary screw penetrations, and the reasons of the intra-articular screw penetration and the technical solutions to avoid the penetration were analyzed. ResultsThe incidence of intra-articular screw penetration is about 11%-30%, which includes primary and secondary screw penetrations. The primary screw penetration is related to improper operation, inaccurate measurement, and “Steinmetz solid” effect, which results in inadequate fluoroscopy and blind zone. The secondary screw penetration is related to the loss of reduction and varus, collapse, and necrosis of the humeral head. The risk factors for intra-articular screw penetration include the bone mass density, the fracture type, the quality of fracture reduction, the applied location, number, and length of the plate and screws, and whether medial column buttress is restored. Improved fracture reduction, understanding the geometric distribution of screws, good intraoperative fluoroscopy, and reconstruction of medial column buttress stability are the key points for success. ConclusionThe risk of the intra-articular screw penetration in the proximal humeral fractures treated with locking plates is still high. Follow-up studies need to further clarify the cause and mechanism of screw penetration, and the risk factors that lead to screw penetration, in order to effectively prevent the occurrence of this complication.
ObjectiveTo compare the effectiveness of long and short proximal femoral nail anti-rotation (PFNA) in the treatment of type A2.3 intertrochanteric fracture of femur (IFF). Methods The clinical data of 54 patients with type A2.3 IFF admitted between January 2020 and December 2022 were retrospectively analyzed. According to the length of PFNA nail used in the operation, they were divided into long nail group (PFNA nail length>240 mm, 24 cases) and short nail group (PFNA nail length≤240 mm, 30 cases). There was no significant difference in baseline data such as gender, age, fracture side, body mass index, and time from fracture to operation between the two groups (P>0.05). The operation time, intraoperative blood loss, intraoperative fluoroscopy frequency, intraoperative reduction quality score, fracture healing, and complications of the two groups were recorded and compared. Harris score was used to evaluate the hip function of patients at 1 year after operation. According to the relationship between the fracture line of type A2.3 IFF and the lesser trochanter, the two groups of patients were divided into type Ⅰ(the fracture line extends to the level of the lesser trochanter), type Ⅱ(the fracture line extends to less than 2 cm below the lesser trochanter), and type Ⅲ (the fracture line extends to more than 2 cm below the lesser trochanter), and the postoperative stability and internal fixator loosening of each subtype were evaluated. Results The operation time, intraoperative blood loss, and intraoperative fluoroscopy frequency in short nail group were significantly less than those in long nail group (P<0.05). There was no significant difference in the intraoperative reduction quality score between the two groups (P>0.05). Patients in both groups were followed up 12-18 months, with an average of 13.5 months. The postoperative stability score of short nail group was significantly lower than that of long nail group (P<0.05). The Harris score in the long nail group was significantly higher than that in the short nail group at 1 year after operation (P<0.05), but there was no significant difference in Harris score grading between the two groups (P>0.05). Complications occurred in 3 cases of the long nail group (including 1 case of coxa varus caused by external nail entry point and 2 cases of loose internal fixator), and 7 cases of the short nail group (including 1 case of coxa varus caused by external nail entry point and 6 cases of loose internal fixator). Neither group had any anterior femoral arch damage, there was no significant difference in the incidence of complications between the two groups (P>0.05). The number of type Ⅲ patients was relatively small and not included in the statistics; there was no significant difference in the postoperative stability score and the incidence of internal fixator loosening between the long and short nail groups in type Ⅰ patients (P>0.05). In type Ⅱ patients, the postoperative stability score and the incidence of internal fixation loosening in the long nail group were significantly better than those in the short nail group (P<0.05).Conclusion Long PFNA fixation for type A2.3 IFF has longer operation time and more intraoperative blood loss, but the overall stability of fracture is better after operation. For type A2.3 IFF with fracture line extending to less than 2 cm below the lesser trochanter, long PFNA is used for fixation, although the surgical trauma is large, but the postoperative stability is better than that of short PFNA; for type A2.3 IFF with fracture line extending to the lesser trochanter, there is no significant difference in postoperative stability between long and short PFNAs.
Objective To study the reparative and reconstructive for proximal humerus defect due to the excision of bone tumor with noninternal fixation non-vascularised fibular autografts. Methods From June 1991 toDecember 2003, 26 non-vascularised fibular grafts were used as substitutes for repair and reconstruction after resection for bone tumors on proximal humerus. Fifteen cases were given curettage and fibular supporting internal fixation, the other 11 cases were given tumor resection and joint reconstruction with proximal fibular graft. The age ranged from 6 to 41 years. Out of 26 patients, 5 had giant cell tumor, 9 had bone cysts, 8 had fibrous dysplasia and 4 had enchondroma. Results Twenty-six patients were followed up from 1 to 12 years (3.4 years on average). Local recurrence was found in 2 cases, and 1 of them died of lung metastasis. Both outlook and function of the reconstructed joints have good results in 15 proximal humeral joint surface reserved cases. Of them, 3 children gained normal shoulder function 3 weeks after operation. Part function were obtained in the other 11 fibular grafts substituted proximal humeral defect. Conclusion Non-vascularised fibular grafts is an appropriate treatment option for proximal humerus bone defect due to excision of bone tumor.
ObjectiveTo explore the effectiveness of proximal femoral nail antirotation (PFNA) assisted by mesh locator in treatment of intertrochanteric fracture in the elderly.MethodsNinety-four elderly patients with intertrochanteric fractures admitted between August 2014 and July 2017 were selected as the study subjects. They were randomly divided into trial group (48 cases) and control group (46 cases). In trial group, PFNA was implanted assisted by mesh locator after closed reduction; while in control group, PFNA was implanted by conventional method. There was no significant difference between the two groups in terms of gender, age, cause of injury, time from injury to admission, fracture side and classification, and medical complications (P>0.05). The operation time, intraoperative blood loss, fluoroscopy times, hospital stay, incision length, and complications were recorded. Visual analogue scale (VAS) was used to evaluate the degree of pain at 3 days after operation, and Harris score was used to evaluate hip function before operation and at 3, 6, and 9 months after operation.ResultsCompared with control group, the operation time and incision length of trial group shortened, the blood loss and fluoroscopy times reduced, the pain after operation alleviated obviously; the differences between the two groups were significant (P<0.05). There was no significant difference in hospital stay between the two groups (P>0.05). The patients in both groups were followed up 9-12 months, with an average of 10.6 months. X-ray films showed that the fractures healed in both groups, and the healing time in control group was (11.2±3.2) weeks, while that in trial group was (11.6±2.9) weeks, showing no significant difference between the two groups (t=1.262, P=0.120). There was no significant difference in Harris score between the two groups before operation and at 3, 6, and 9 months after operation (P>0.05). There was 1 case of incision infection, 2 cases of coxa vara, and 1 case of pressure ulcer in trial group, and the incidence of complications was 8.3%. There was 1 case of coxa vara, 2 cases of pressure ulcer, and 1 case of internal fixation loss in control group, and the incidence of complications was 8.7%. There was no significant difference in the incidence of complications between the two groups (χ2=0.783, P=0.112).ConclusionIt is feasible to implant PFNA assisted by mesh locator in treatment of intertrochanteric fracture in the elderly. Compared with the traditional operation, it can shorten the operation time, shorten the incision, and relieve the pain after operation.
ObjectiveTo investigate the effect of the screw blade position on the effectiveness of proximal femoral nail anti-rotation (PFNA) internal fixation for unstable intertrochanteric fractures in the elderly.MethodsA clinical data of 131 elderly patients with unstable intertrochanteric fractures who were treated with PFNA internal fixation between January 2010 and January 2017 was retrospectively analyzed. According to the anteroposterior X-ray films, the screw blades were placed in the middle of the femoral neck in 72 patients (group A) and at one-third of the femoral neck in 59 patients (group B). There was no significant difference between the two groups (P>0.05) in the gender, age, bone density, classification of fractures, other medical diseases, and the time between injury and operation. Multiple treatment indexes were analyzed, including complications, hip Harris score, the healing status of fracture, tip-apex distance (TAD), and the height of the tail nail.ResultsAll patients were followed up 11-14 months, with an average of 12.1 months. All incisions healed by first intention with no complications. All fractures healed and no significant difference in bone healing time between the two groups (Z=−0.190, P=0.849). At 6 months after operation, TAD was (2.23±0.07) cm in group A and (2.85±0.12) cm in group B, showing significant difference (t=−47.643, P=0.000); and the height of the tail nail was (1.72±0.14) cm in group A and (0.53±0.26) cm in group B, showing significant difference (t=31.031, P=0.000). According to the Harris score, the hip functions were rated as excellent in 48 cases, good in 15 cases, and poor in 9 cases in group A, while as excellent in 38 cases, good in 16 cases, and poor in 5 cases in group B, with no significant difference between the two groups (Z=−0.075, P=0.941).ConclusionFor the unstable intertrochanteric fracture in the elderly, the PFNA internal fixation with appropriated TAD and the screw blades placed in the middle or at one-third of the femoral neck can obtain good effectiveness.
ObjectiveTo evaluate the effectiveness and safety of proximal aortic repair (PAR) versus total arch replacement (TAR) for treatment of acute type A aortic dissection (ATAAD). Methods An electronic search was conducted for clinical controlled studies on PAR versus TAR for patients with ATAAD published in Medline via PubMed, EMbase, The Cochrane Library, Web of Science, Wanfang Database and CNKI since their inception up to April 30, 2022. The quality of each study included was assessed by 2 evaluators and the necessary data were extracted. STATA 16 software was used to perform statistical analysis of the available data. ResultsA total of 28 cohort studies involving 7 923 patients with ATAAD were included in this meta-analysis, of whom 5 710 patients received PAR and 2 213 patients underwent TAR, and 96.43% of the studies (27/28) were rated as high quality. The meta-analysis results showed that: (1) patients who underwent PAR had lower incidences of 30 d mortality [RR=0.62, 95%CI (0.50, 0.77), P＜0.001], in-hospital mortality [RR=0.64, 95%CI (0.54, 0.77), P＜0.001], and neurologic deficiency after surgery [RR=0.84, 95%CI (0.72, 0.98), P=0.032] than those who received TAR; (2) the cardiopulmonary bypass time [WMD=–52.07, 95%CI (–74.19, –29.94), P＜0.001], circulatory arrest time [WMD=–10.14, 95%CI (–15.02, –5.26), P＜0.001], and operation time [WMD=–101.68, 95%CI (–178.63, –24.73), P＜0.001] were significantly shorter in PAR than those in TAR; (3) there was no statistical difference in mortality after discharge, rate of over 5-year survival, renal failure after surgery and re-intervention, volume of red blood cells transfusion and fresh-frozen plasma transfusion, or hospital stay between two surgical procedures. Conclusion Compared with TAR, PAR has a shorter operation time and lower early and in-hospital mortality, but there is no difference in long-term outcomes or complications between the two procedures for patients with ATAAD.
ObjectiveTo investigate the effectiveness of proximal femoral nail anti-rotation (PFNA) and cerclage fixation for complicated femoral subtrochanteric fractures.MethodsA clinical data of 74 patients with complicated femoral subtrochanteric fractures, who were admitted between March 2016 and March 2019 and met the criteria, was retrospectively analyzed. Among them, 39 patients were treated with limited open reduction and PFNA combined with cerclage fixation (observation group) and 35 patients were treated with closed reduction and PFNA fixation (control group). There was no significant difference in gender, age, cause of injury, side and type of fracture, and the time from injury to operation (P>0.05). The ratio of postoperative hemoglobin (1, 3, and 5 days) to the preoperative hemoglobin, the operation time, the first weight-bearing time after operation, and the hospital stay were recorded. X-ray films were taken to observe fracture healing in the two groups and bone resorption around the cerclage in the observation group, and the fracture healing time was recorded. Hip function was evaluated by Harris scoring. ResultsThe operation time of the observation group was significantly longer than that of the control group (P<0.05), but the first weight-bearing time and hospital stay were significantly shorter (P<0.05). All patients were followed up 12 months. There was no significant difference in the ratios of post- to pre-operative hemoglobin (1, 3, and 5 days) between the two groups (P>0.05). X-ray film reexamination showed that the fractures of the two groups healed smoothly, and the fracture healing time of the observation group was significantly shorter than that of the control group (t=−12.989, P=0.000). No bone resorption around the cerclage occurred in the observation group. The Harris scores of the observation group were better than those of the control group at 7 days and 1, 2, and 3 months after operation (P<0.05), and there was no significant difference between the two groups at 6 months after operation (t=1.329, P=0.180).ConclusionCompared with PFNA fixation, PFNA combined with cerclage fixation for the complicated femoral subtrochanteric fractures has a shorter operation time, and can obtain immediate stability after fixation, which can meet the needs of patients for early functional exercise.