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1.

Background

The variation of C1 spinolaminar line in normal population is not fully understood. The relative position of C1 lamina to C3–C2 spinolaminar line is reported as good screening tool for determination of C1 canal stenosis.

Objective

To determine the variation of C1 spinolaminar line and find the prevalence of C1 canal stenosis in normal population using C3–C2 spinolaminar test.

Materials and methods

Three hundred and fifteen lateral cervical radiographs from 315 volunteers without neurological symptoms were analyzed. The relative position of C1 spinolaminar line was determined by C3–C2 spinolaminar and considered positive if C1 lamina lay ventral to C3–C2 line. C1 space available for cord (SAC) was measured from posterior border of dens to the C1 lamina to determine the sagittal diameter.

Results

The mean sagittal spinal canal diameter of C1 was 22.2 mm (13–26 mm). Of 315, 14 (4.4%) had positive, 184 (58.4%) had neutral, and 117 (37.1%) had negative C1 spinolaminar line in relation to C3–C2 line. The mean SAC among positive group was 14.9 mm compared to neutral and negative groups which were 22.2 and 23.3 mm, respectively. 21.4% of positive group had SAC of less than 12 mm. The 92.8% of positive C1 spinolaminar line was found in age ≥ 60 years.

Conclusion

In a normal population, 4.4% has positive C1 spinolaminar line. The C1 stenosis is more prevalent in positive C1 spinolaminar line group.
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2.
The spinolaminar line is an important anatomical landmark easily visualized on the lateral radiograph of the cervical spine. Any displacement in this line may be an indication of subtle traumatic vertebral damage. This is particularly relevant to the upper cervical spine in which the complex anatomy and frequent absence of associated neurological deficit make diagnosis difficult. Two case histories are presented which emphasize the importance of evaluation of the spinolaminar line on the lateral radiograph after trauma to the head and neck.  相似文献   

3.

Background

This study was performed to investigate the relationship between coronal computed tomography (CT) and Broden''s view in terms of location of the fracture line and fracture pattern.

Methods

Forty-five feet of 45 patients with intraarticular calcaneal fractures were evaluated. The mean age of the patients was 46.3 years (standard deviation, 18.1; range, 15 to 80 years), and there were 34 men and 11 women. The Broden''s views were acquired using the ray sum projection, reviewed, and correlated with the coronal CT image to determine the location of the fracture on the posterior facet and fracture pattern described by the Sanders classification. The quantified location of the fracture line was defined as the distance between the medial margin of posterior facet and the fracture line divided by the whole length of the posterior facet, which was expressed as a percentage.

Results

The fracture line on the Broden''s view was positioned at 22.3% (standard deviation, 29.6) laterally compared to that on coronal CT (p < 0.01). Although all cases showed posterior facet involvement on the CT scan, the fracture line was positioned lateral to the posterior facet in 6 cases (13.3%) in the Broden''s view. The coronal CT and Broden''s view showed a low level of agreement in the fracture pattern according to the Sanders classification, with kappa values of 0.23.

Conclusions

Surgeons should consider that the fracture line on the Broden''s view shows positioning laterally compared to coronal CT and they should consider that the fracture line at the lateral to posterior facet on the Broden''s view might be an intraarticular fracture line. There are some limitations when applying the Sanders classification with the Broden''s view.  相似文献   

4.
P Makan 《Spine》1999,24(11):1144-1146
STUDY DESIGN: Report of a rare fracture of the cervical spine. OBJECTIVES: To illustrate the importance of the cervical spinolaminar line in the diagnosis of this unusual injury and to comment on appropriate investigations, management, and outcome. SUMMARY OF BACKGROUND DATA: Laminar fractures of the cervical spine are uncommon and are often missed. They usually occur after a hyperextension injury. It is unusual for these injuries to cause neurologic compromise. The injury reported here differs in that it was a result of direct trauma to the posterior aspect of the neck, and there was a significant neurologic deficit. METHODS: The clinical findings, roentgenographic appearance, treatment, complications, and follow-up assessment are presented and discussed. RESULTS: Initial neurologic examination revealed a right hemiparesis. Radiographs showed disruption of the spinolaminar line at C5 and a computed tomography scan revealed a fracture of the lamina of C5 with spinal canal encroachment. Management included high-dose corticosteroid administration and a posterior spinal decompression. The patient's initial postoperative course was complicated by acute pulmonary edema, which responded well to intravenous Furosemide and ventilation. Follow-up assessment showed significant neurologic improvement. CONCLUSIONS: The satisfactory outcome in the case of this rare injury was the result of a prompt, accurate diagnosis and appropriate management.  相似文献   

5.
Hoffa''s fracture is an uncommon fracture of the femoral condyle with coronal orientation of the fracture line. The mechanism of injury in pediatric Hoffa''s fracture is road traffic accident, sports injury, and trivial injury. Clinical examination and proper imaging is important for diagnosis of pediatric Hoffa''s fracture because of high chances of missing these injuries which can lead to nonunion and malunion at the fracture site. Open reduction and anatomical reduction of intraarticular fragment is the gold standard treatment of these fractures. We present a rare case of Hoffa''s fracture in a 16-year-old girl with associated ipsilateral fibular fracture.  相似文献   

6.

Background

Tibial fractures are the most common long bone fracture. The standard of care for the treatment of diaphyseal tibial fractures is an intramedullary nail (IMN). Implant removal is one of the most common procedures in bone and joint surgery, and criteria for implant removal are typically left to the treating surgeon. Currently, no clear criteria exist to guide a surgeon''s decision to remove implanted tibial IMNs after healing.

Methods

We undertook a retrospective chart review of a single surgeon''s practice from January 1996 to February 2005. We identified patients aged 16–70 years with a tibial fracture treated with an IMN. Patients were followed until fracture union and/or request for IMN removal. The following parameters were recorded: reason for implant removal, age, sex, mechanism of fracture, location of fracture, diameter of IMN, Workers'' Compensation Board (WCB) status, activity level, litigation status, insurance involvement, height, weight and body mass index (BMI).

Results

Factors influencing the likelihood of removal were sex and litigation. Factors not influencing the likelihood of removal were age, weight, height, BMI, diameter of IMN, patients'' level of activity, insurance claim involvement and WCB involvement. Overall, 72.2% of patients had an improvement in their symptoms after IMN removal.

Conclusion

Sex and litigation are positive predictive factors for patient requests to have tibial IMNs removed after healing.  相似文献   

7.
目的:探讨应用经腹直肌外侧切口入路联合翼形跟骨钢板治疗累及四边体的髋臼骨折和骨盆后柱骨折的疗效。方法:回顾性分析2017年1月至2021年4月收治的累及四边体的髋臼骨折和骨盆后柱骨折患者21例,其中男12例,女9例;年龄21~73(43.23±6.45)岁。所有患者采用经腹直肌外侧切口入路联合翼形钢板切开复位内固定治疗,其中12例骨盆合并前后柱骨折,7例髋臼骨折并累及四边体,2例髋臼骨折伴中心性脱位。结果:21例患者均获得随访,时间12~36(18.60±6.45)个月,骨折均愈合。术后根据Matta影像学复位评价:11例骨盆前后柱骨折为解剖复位,1例为满意复位,7例累及四边体的髋臼骨折为解剖复位,1例伴中心型脱位为解剖复位,1例为满意复位。改良Merle D’Aubigne-Postel髋关节评分13~17分。结论:腹直肌外侧切口入路辅以联合翼形钢板治疗累及四边体的复杂髋臼、骨盆骨折可以获得良好的放射学及临床结果,对复杂骨盆骨折及髋臼四边体骨折的治疗具有优越性。  相似文献   

8.

Summary

Wilson’s disease is characterized by copper deposition, especially in the liver and central nervous system. We assessed the prevalent fractures and bone mineral density (BMD) and related risk factors in 85 patients. BMD was normal, but patients with severe neurological involvement, low BMI, and/or amenorrhea are at risk for fractures.

Introduction

Wilson’s disease (WD) is characterized by copper deposition, especially in the liver and central nervous system. Two studies showed a high prevalence of osteoporosis in WD patients. We wanted to assess the prevalent fractures and bone mineral density (BMD) and to identify risk factors for bone loss and fractures in a large group of WD patients.

Methods

In this prospective cross-sectional survey at National center of reference for WD, we included 85 patients, 47 women, and 38 men, with a mean age of 35?±?10 years, and mean time from diagnosis to study of 21?±?9 years; 57 (67 %) patients had neurological signs. Peripheral fractures, prevalent radiological vertebral fractures (VFx), and dual-energy X-ray absorptiometry BMD measurements at the femoral neck (FN) and lumbar spine (LS) were studied.

Results

Mean LS and FN Z-score was normal (?0.37?±?1.20 at LS and ?0.06?±?1.20 at FN). BMI <19 kg/m2 and amenorrhea were associated with low BMD. Prevalent peripheral fractures were noted in 43 (51 %) and VF in 7 (8 %) patients. Severity of neurological involvement and male sex was associated with peripheral fractures, whereas older age, severe neurological involvement, and low BMD and Z-score values were associated with VF.

Conclusion

Our data showing normal BMD overall do not support routine bone status evaluation in adults with WD. However, patients with severe neurological involvement, low BMI, and/or amenorrhea are at risk factors for fractures and may require specific monitoring.  相似文献   

9.
SUMMARY: Measurement of the anteroposterior diameter of the cervical spinal canal may prove unreliable because of the rotatory effect of degenerative disease. Nevertheless, this measuring error may be corrected by performing dual midpoint measurements between the posterior vertebral body and spinolaminar line when less than 10 degrees of rotation is present.  相似文献   

10.

Background:

Proximal humeral fractures account for 4–5% of all fractures; most of them involving elderly and osteoporotic people. 1 51% of such fractures are displaced. Two Fractures with minimal displacement, regardless of the number of fracture lines, can be treated with closed reduction and early mobilization, but anatomical reduction in displaced fractures is difficult to obtain and the incidence of pseudarthrosis is high 3-5. We evaluated the functional results of closed Neer''s 2- and 3-part proximal humerus fractures treated by Joshi''s external stabilizing system.

Materials and Methods:

Sixteen patients with proximal humeral fractures were managed from 2008 to 2010 by Joshi''s stabilizing external fixation. They were 10 males and 6 females, with a mean age of 57.5 years. Based on Neer''s classification, there were eleven 3-part fractures and five 2-part fractures. The mechanism of injuries included seven road traffic accidents and nine fall. Shoulder mobilization exercises were started within 1 week after stabilization with JESS. External fixation was removed after the evidence of union (6–8 weeks). Pain was evaluated by visual analogue scale (VAS) and shoulder range of motion was evaluated by Constant Scoring System. Followup was done at 4 weeks, 8 weeks, 12 weeks, and then at every 4 weeks.

Results:

Mean followup was of 20.5 months (range 9-30 months). Postoperative mean VAS score and Constant Score of patients was 2.1 (±0.73) and 78.1 (±9.61) at an average followup of 6 months. Mean duration for union was 6.5 (±1.18) weeks. One case of K-wire loosening and one case of pin tract infection were the complications noted.

Conclusion:

External fixation by JESS is an alternative option to treat Neer''s 2 and 3 part proximal humerus fractures with good results.  相似文献   

11.
This retrospective radiographic study sought to evaluate how primary fracture line location relates to the pattern and severity of intraarticular calcaneal fractures. Preoperative lateral radiographs and semicoronal computed tomography scans of 100 displaced intraarticular calcaneal fractures (89 patients) were evaluated for Bohler's angle, Sanders classification, and calcaneocuboid, anterior, or middle subtalar articular involvement. Primary fracture line location was measured on semicoronal computed tomography views as a ratio of the width of the posterior facet. There were 60 Sanders type II (29 IIA, 29 IIB, 2 IIC), 35 type III (10 IIIAB, 9 IIIAC, 16 IIIBC) and 5 type IV fractures. The mean Bohler's angle was 10.1+/-15.6 degrees. The mean primary fracture line location was calculated to be found at 45.7+/-18.2% of the width of the posterior facet, as measured from lateral to medial. Statistical analysis found a significant association between primary fracture line location and Sanders class (r=.636; P<.001) and Bohler's angle (r=-.287; P=.005); as the fracture line moved medially, comminution increased and Bohler's angle decreased. Forty-eight percent of the fractures involved the calcaneocuboid joint; 39% involved the anterior (n=28) or middle (n=11) subtalar facets, or both. A medial primary fracture line correlated to greater involvement of the calcaneocuboid joint (r=.247; P=.015) and the anterior (r=.241; P<.001) and middle (r=.344; P=.003) facets. These results suggest that intraarticular calcaneal fractures exhibiting a medial primary fracture line are associated with a more severe fracture pattern and an increased incidence of anterior articular extension.  相似文献   

12.
Distal radius fractures are among the most common pediatric fractures. In unstable fractures, treatment methods include closed or open reduction and percutaneous pinning with Kirschner wire (K-wire). This report presents a 13-year-old boy with an unstable distal radius and ulnar fractures, following an accident, who was treated with open reduction and K-wire fixation. He had pain and limited wrist range of motion for 6 months. Conventional radiography revealed a lytic lesion with evident sclerotic margin. Chronic osteomyelitis and Brodie''s abscess were also indicated. A complete curettage and antibiotic therapy for 3 months was successful. Culturing results showed that Staphylococcus aureus and pathologic findings were in favor of chronic osteomyelitis. Subacute osteomyelitis and Brodie''s abscess are rare retarded complications in percutaneous pinning of distal radius pediatric fractures. The curettage of the lesion and antibiotic therapy for at least 3 months would be successful and could result in good prognosis among children.  相似文献   

13.
Orthopedic trauma surgeons often encounter Smith's fracture in patients who report that they have fallen on the palms of their hands. The aim of this study was to clarify the pathogenesis of Smith's fracture in basic clinical aspects. First, a survey was conducted for investigating the mechanism of injury and arm position at the time of injury among patients with Smith's fractures who consulted at our outpatient clinic. Second, we created three‐dimensional finite element models (FEMs) to predict the influence of arm position on the type of injury resulting from a fall. These predictions were then used in ten freshly frozen cadavers to provide experimental proof of Smith's fractures resulting from the impact on the palmar side. Twenty‐six patients (5 males and 21 females) with Smith's fractures were enrolled in this study. Injury resulting from a fall on the palm of the hand, the dorsum, or ulno‐dorsum of the hand, and fisting handle was observed in 16 cases (61%), 3 cases (12%), and 1 case (4%), respectively. Six patients were uncertain of their arm position at the time of injury. FEM analysis showed that Smith's fractures occurred when the angle between the long axis of the forearm and the ground was 30°–45° in the sagittal plane and 75°–90° in the coronal plane. Smith's fractures occurred in 7 of 10 wrists in the experimental study, whereas no Colles’ fractures were observed. This study demonstrated that Smith's fracture results from falling on the palm of the hand. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:2435–2441, 2017.
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14.
Bicondylar Hoffa''s fractures of the femur is very uncommon. Conjoint bicondylar Hoffa fracture with ipsilateral patellar dislocation, Bicondylar Hoffa''s with patellar fracture and extensor mechanism rupture has been described in literature. We report a case of unconjoint bicondylar Hoffa''s fracture with lateral patellar dislocation in 17-year-old male patient treated with open reduction and cancellous screw fixation that subsequently healed well with good functional outcome.  相似文献   

15.

Objectives

Even after evolution of computerized tomography and improved surgical measures, treatment of intraarticular calcaneal fractures remains a controversy. Hence this study was carried out to compare functional outcomes of displaced intraarticular calcaneal fractures, treated with operative management with plating and conservative management with cast.

Material and methods

This study was carried out as a prospective, comparative study. Twenty nine (30 fractures) patients with acute, displaced intraarticular fractures of calcaneum aged 18–50 years, were enrolled in the study. Open fractures and fractures older than two weeks were excluded. 30 fractures were divided into two groups (operative and conservative; n = 15 in each). Evaluation in form of post treatment restoration of Bohler''s angle, heel varus angle and with Creighton–Nebraska (C–N) score for functional outcome was done at the end of 12 months.

Results

When we consider the clinical evaluation under the C–N score, the results of operatively managed calcaneal fractures are slightly better than those of the conservative group. But this did not have any statistical significance. Also, there was significant difference in pre and post treatment Bohler''s angle and heel varus angle in operative group. Three cases of plating suffered from post-operative wound dehiscence.

Conclusion

A relatively better functional outcome was observed in displaced and comminuted fractures in plating, provided that the Bohler''s angle was restored. In conservative group, functional outcome of minimally displaced fractures were better than displaced comminuted fractures. Post treatment Bohlers angle has prognostic importance in functional outcome.  相似文献   

16.
The purpose of this study was to present a surgical technique of open reduction and internal fixation of displaced intra-articular calcaneal fractures with 3 AO mini-fragment plates and to evaluate the clinical and radiological outcome of a consecutive group of patients after a mean follow-up of 41.7 months. A series of 54 patients (16 women and 38 men) with 62 calcaneal fractures were treated over a period of 6.5 years. Forty-five patients with 50 calcaneal fractures were completely clinically and radiologically followed up. Clinical follow-up included assessment of range of motion, pain according to a visual analogue scale, the American Orthopaedic Foot and Ankle Society hindfoot score, and the short-form 36 health survey. Radiological follow-up included plain axial and lateral radiographs and measurement of the Böhler's angle and Gissane's angle. Independent Student's t test and paired Student's t test were used alongside the chi-square test to compare clinical and radiological data and score values between different groups of patients. Eleven patients showed breakage of the osteosynthesis material during the healing process and 2 patients sustained deep wound infection requiring revision surgery. At the final follow-up all fractures had healed. The average range of motion was supination 26.4° (range 0° to 50°; SD 11.6°), pronation 15.4° (range 0° to 30°; SD 6.4°), dorsal extension 14.3° (range –10° to 30°; SD 8.0°), and plantarflexion 39.6° (range 20° to 65°; SD 11.7°). Patients with OTA type C4 fractures achieved significantly lower supination (p < .01) and plantarflexion (p < .01) compared with other fracture types. The mean visual analog scale pain score was 3.6 (range 0 to 8; SD 2.3) points, average American Orthopaedic Foot and Ankle Society hindfoot score was 70.8 (range 33 to 100; SD 17.1) points, and the mean short-form 36 score was 60.98 (range 22.9 to 93.0; SD 18.4) points. The mean postoperative Böhler's angle was 28.9° (range 8° to 38°; SD 7.1°), which decreased to 23.6° (range 4° to 34°; SD 8.7°) at the final follow-up, and the mean postoperative Gissane's angle was 108.6° (range 80° to 140°; SD 11.8°), which finally decreased to 102.4° (range 72° to 126°; SD 12.7°). No statistically significant differences regarding Böhler's and Gissane's angles were found between different OTA fracture types. In conclusion, the presented surgical technique was found to provide comparable and adequate reduction of OTA type C2–C4 injuries based on statistically insignificant differences in radiographic measures of postoperative fracture reduction. Greater limitation in subtalar motion was observed in OTA type C4 fractures in comparison with less severe fractures (p < .01).  相似文献   

17.
Abstract

Sixteen patients with bony mallet fingers were treated by a new technique of open reduction through a T-shaped dorsal incision and oblique wire fixation via pulp traction with additional primary extensor repair. Surgical indications included fractures with intra-articular involvement over 1/3 of the articular surface, distal phalanx subluxation, and displacement greater than 3 mm irreducible by extension block pinning. The cases were analysed prospectively for a mean follow-up period of 12 months. The results were evaluated using Crawford's criteria. Eleven cases were evaluated as excellent, three cases as good, and two cases as fair. Complications included three cases with transient nail deformity, two cases with flexion limitation of 5° and 10°, and three cases with extension lag between 5°–10°. This new method of accurate reduction achieves good clinical outcomes, with comparatively less complications in mallet fractures irreducible to closed extension block reduction.  相似文献   

18.
IntroductionCalcaneal fractures may have lifelong debilitating sequences, if not treated properly. Identifying different types of calcaneal fractures based on the computed tomography (CT) scans can increase our conception about these fractures.MethodsIn a cross-sectional study, the available CT images of all consecutive patients with the diagnosis of calcaneal fracture, from January 2015 to December 2018, were reviewed to determine different patterns and types of these fractures.ResultsCT images of 886 patients (mean age, 41.29 ± 14.9; range, 3–89 years; male/female, 4.86; pediatric: 3.7%) with 957 calcaneal fractures were evaluated. The peak incidence of calcaneal fractures was seen in patients between 30 to 39 years of age (29%). The rate of open fractures and bilateral involvements were 2.4% and 8.0%, respectively. Among 680 (71.0%) intra-articular calcaneal fractures, subtalar calcaneal fractures were the most common type (94.3%). The majority of intra-articular subtalar calcaneal fractures were displaced (95.0%) with calcaneocuboid joint (CCJ) involvement (59.9%). Fracture lines were extended to the CCJ in about 86.9% of Sanders type IV, 66.3% of type III, and 60.2% of type II. Among 261 extra-articular fractures (27.3%), calcaneal body fracture (55.6%) was the most frequent type, followed by medial tubercle fracture (24.1%), calcaneal tuberosity fracture (10.4%), Degan type I anterior process fractures (5.4%), Degan type II anterior process fracture (3.4%), and isolated lateral tubercle fracture (1.1%). Most of bilateral calcaneal fractures were intra-articular subtalar fractures with involvement of CCJ. Although majority of intra-articular calcaneal fractures were displaced; less than half of the extra-articular fractures were displaced.ConclusionDisplaced intra-articular subtalar calcaneal fractures with CCJ involvement are the most frequent type of unilateral and bilateral calcaneal fractures. It appears that there is a correlation between Sanders type and the probability of CCJ involvement. Unlike intra-articular subtalar calcaneal fractures, the CCJ in the majority of extra-articular calcaneal body fractures was intact.Level of evidenceLevel IV.  相似文献   

19.
In calcaneal fractures, Böhler's and Gissane's angles are considered important parameters to guide treatment strategy and provide prognostic information during follow-up visits. Therefore, lateral radiographs have to be accurate. The aim of this study was to evaluate the effect of craniocaudal and posteroanterior angular variations (i.e., simulate lower leg malposition) from the true lateral radiograph on Böhler's and Gissane's angles. In this radioanatomical study, 15 embalmed, skeletally mature, human anatomic lower limb specimens were used. Using predefined criteria, a true lateral radiograph (i.e., 0° angular variation) was obtained. Angular variations from this true lateral radiograph were made from –30° to +30° deviation in the craniocaudal and posteroanterior direction at 5° intervals. Böhler's and Gissane angles were independently assessed by 2 experienced trauma surgeons. Böhler's angle decreased with increasing caudal angular variations (maximum –4.3° deviation at –30°). With increasing of the posterior angular variations, Böhler's angle increased (maximum 5.0° deviation at +30°) from the true lateral radiograph, but all deviations were within the measurement error. The deviation of the angle of Gissane was most pronounced in the cranial direction, with the mean angle decreasing by –8.8° at +30° angular variation. Varying angular obliquity in the caudal and posteroanterior direction hardly affected Gissane's angle. Foot malpositioning during the making of a lateral radiograph has little influence on Böhler's and Gissane's angles. If used for clinical decision-making in initial treatment and during follow-up of calcaneal fractures, these parameters can reliably be obtained from any lateral radiograph.  相似文献   

20.
Purpose: To evaluate the clinical outcomes of locking calcaneal plate in treating calcaneal fracture (Sanders IIeIII) in elderly patients. Methods: From October 2012 to December 2013, 23 elderly patients suffering from calcaneal fracture (Sanders IIeIII) were treated and followed up. There were 15 males and 8 females with the mean age of 68.5 years (range: 65e79 years). According to Sander''s classification, 16 cases (16 feet) were type II fractures and 7 cases (7 feet) were type III fractures. Anteroposterior, lateral and axial views of X-ray were taken to detect the calcaneum. CT scan was done to assess the amount of comminution and articular depression. Radiological assessment was performed using Bohler''s angle and Gissane''s angle. Functional outcome was assessed using the Maryland foot score. Results: All the patients were followed up for 13.7 months on average (10e20 months). The mean time of bone union was 3.2 months (3e4 months). The mean time of complete weight bearing was 3.2 months (3.1e4.0 months). The soft tissue necrosis was found in 1 case. The mean Bohler''s angle and Gissane''s angle were 25.31 and 117.5 respectively. The overall excellent to good rate was 82.6%. Conclusion: Open reduction and internal fixation with locking calcaneal plate can obtain good functional outcome for Sanders IIeIII calcaneal fractures in elderly patients.  相似文献   

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