首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 625 毫秒
1.
The present study was performed to evaluate the effects of the medial and anterolateral approach combined with internal fixation by double head compression screws and countersunk K-wires for Hawkins Ⅲ talus neck and medial malleolus fracture. Eleven patients with articular surface crush injury resulting in Hawkins Ⅲ talus neck fractures accompanied by medial malleolus fractures were reviewed. All patients underwent emergency operations. The fractures were fixed using double head compression screws and countersunk K-wires through combined medial and anterolateral approaches. FAOS, AOFAS ankle-hindfoot scale, and VAS questionnaire scores were recorded. In addition, ROM of the ankle and postoperative complications were assessed. All patients were followed up for a median of 52.45 ± 5.15 months. The multiple scales data of FAOS on the affected side were: pain score 89.14 ± 7.08; activities of daily living score 89.57 ± 8.88; quality-of-life score 89.20 ± 7.44; sports score 75.00 ± 15.49; and other symptoms score 84.74 ± 7.51. The mean overall AOFAS ankle-hindfoot score was 88.36 ± 6.39. The VAS score was 0.72 ± 0.65. Ankle motion included dorsiflexion (13.18° ± 9.02°) and plantar flexion (32.27° ± 12.34°). Subtalar joint motion included eversion (10.91° ± 7.01°) and inversion (11.36° ± 7.45°). All scores of the healthy side were higher than those of the affected side (p < .05). In addition to ROM of the ankle and subtalar joint and sports score, various indicators of recovery rate had scores > 80%. One patient developed skin necrosis, which healed after debridement and wound dressing. Late complications included subtalar and/or ankle traumatic arthritis in six patients, four of whom showed no obvious clinical symptoms. In conclusion, the method of emergency surgery and medial and anterolateral approach combined with countersunk K-wires to fix small bone fragments to restore the integrity of the articular surface is acceptable for Hawkins Ⅲ talus neck with medial malleolus fracture.  相似文献   

2.
The aim of the present study was to evaluate the clinical and radiologic results of surgically treated isolated medial malleolar fractures and compare the clinical and radiologic results of the fixation methods of headless cannulated fully threaded compression screws and cancellous lag screws and tension band wiring. We included 32 patients who attended the final follow-up examination. Group 1 consisted of 11 patients (34.4%) treated with headless cannulated fully threaded compression screws. Group 2 consisted of 10 patients (31.2%) treated with cancellous lag screws. Group 3 consisted of 11 patients (34.4%) treated with Kirschner wires and intraosseous tension wiring. Standard ankle radiographs, American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot scale, and visual analog scale for pain were assessed. No statistically significant differences were found among the groups in regard to age, gender, preoperative fracture type, follow-up time, radiologic bone union time, and baseline AOFAS scale scores. The interval to fracture healing was 2.2?±?0.42 months in group 1, 2.5?±?0.71 months in group 2, and 2.45?±?0.52 months in group 3. The AOFAS ankle-hindfoot scale score was 96.73?±?5.55 in group 1, 93.1?±?5.43 in group 2, and 93.73?±?5.52 in group 3. Hardware removal was not required in any patient in group 1 but was required in 2 patients (20%) in group 2 and 3 patients (27.3%) in group 3. The visual analog scale score for pain on palpation at the medial malleolus was significantly lower statistically in the headless compression screw group (group 1; p?=?.003).  相似文献   

3.
BackgroundThe main purpose of this study was to describe the all-inside arthroscopic technique for repairing anterior talofibular ligament (ATFL) avulsion fractures at the attachment points of the fibula and talus, and to evaluate the functional outcomes during long-term follow-up.MethodsThe data of 78 patients with ATFL avulsion fracture treated in our hospital from August 2013 to November 2016 were analyzed retrospectively. All patients underwent surgery. Patients were divided into two groups according to whether they had undergone all-inside arthroscopic treatment or open treatment. The American Orthopedic Foot and Ankle Society (AOFAS) score, Karlsson Ankle Functional Score (KAFS), Foot and Ankle Outcome Score (FAOS) and a 36-item Short Form Health Survey questionnaire (SF-36) were used to evaluate functional outcomes.ResultsThe postoperative follow-up period was 24–48 months. All patients reported subjective improvements to ankle stability without any nerve, blood vessel or tendon complications. At the final follow-up, there was no significant difference in the AOFAS, SF-36 or sport participation rate between the arthroscopic group and the open group; however, the KAFS and FAOS were significantly higher in the arthroscopic group than in the open group.ConclusionsFor ATFL avulsion fractures, the all-inside ankle arthroscopic procedure produced better outcomes than did the open procedure. The all-inside ankle arthroscopic procedure provides a minimally invasive technique with acceptable long-term functional outcomes.  相似文献   

4.
The consequences of inadequate treatment of ankle fractures can be disastrous. We assessed the radiologic and functional outcomes, postoperative quality of life (QOL), and its determinants for patients treated operatively for AO type 44 ankle fractures. Evidence is lacking concerning the management of posterior malleolus fractures and syndesmotic injuries. Our retrospective adult cohort study included 432 AO/OTA type 44 ankle fractures (431 patients). The median follow-up period was 52 months. Outcomes were assessed from the medical records, radiographs, American Orthopaedic Foot and Ankle Society (AOFAS) ankle scale (functional outcome), and EuroQol EQ-5D questionnaires. The median AOFAS scale score was 88; 27.9% of patients reported restricted mobility and 40.4% pain or discomfort. In 8.8%, radiographic failure was observed. The presence of posterior malleolus fractures was significantly associated with poor functional outcomes, and a postoperative step-off correlated with radiologic failure, poor functional outcome, and poor postoperative QOL. Late syndesmotic screw removal was associated with worse EQ-5D time trade-off QOL scores. A substantial number of patients experienced functional impairment, discomfort, and pain. Syndesmotic injury was associated with ankle joint failure and poor functional outcomes. Our data indicate that all displaced posterior malleolus fracture fragments affecting the posterior articular tibial surface in patients aged ≤65 years require anatomic reduction.  相似文献   

5.
We report a case of valgus ankle degenerative arthritis due to chronic isolated deltoid insufficiency combined with tibial varus that was treated successfully with ankle joint preserving surgery. A 63-year-old male complained of right lateral ankle pain with 10 minutes of maximal pain-free walking time. The assessed American Orthopaedic Foot and Ankle ankle-hindfoot scale score was 33 points. The ankle joint showed 18° of valgus deformity with 6° of tibia varus. Medial displacement calcaneal osteotomy, supramalleolar open wedge osteotomy, and deltoid ligament imbrication were performed. At the 2-year follow-up examination, the ankle joint showed 10° of valgus and the tibial plafond showed flattening. The hindfoot showed 7° of valgus. He could run for 2 hours on the treadmill without pain. The American Orthopaedic Foot and Ankle ankle-hindfoot scale score was 90 points. In conclusion, valgus ankle degenerative arthritis with isolated deltoid insufficiency and tibial varus could be treated successfully with realignment using a double osteotomy and additional deltoid imbrication.  相似文献   

6.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

7.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

8.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

9.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

10.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

11.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

12.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

13.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

14.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

15.
目的 探讨手术治疗踝关节骨折的疗效.方法 回顾性分析2000年1月至2008年4月手术治疗且有完整随访资料的92例踝父节骨折患者的疗效.评价指标包括美国足踝机会踝与后足功能评分(AOFAS评分)、骨折部位的疼痛评估(VAS评分)、患者满意度、踝关节活动度.并对踝关节健侧与患侧的关节活动度差异,以及不同AO分型之间、骨折累及不同部位(单踝、双踝、三踝骨折)之间、不同随访时限之间这二种情况下的踝关节屈伸活动度及AOFAS评分的差异进行统计学分析.结果 平均随访55个月,所有患者骨折均愈合;AOFAS评分平均为93.6分,优良率100%;VAS评分平均为0.17分,患者满意度评分平均为9.62分.健、患侧踝关节活动度差异有统计学意义(P<0.05),不同AO分型之间、骨折累及小同部位之问、不同随访时限之问的踝关节屈伸活动度和AOFAS评分差异无统计学意义(P>0.05).结论 手术治疗踝关节骨折可取得满意的临床疗效.  相似文献   

16.
目的:探讨旋前-外旋型踝关节骨折中隐匿后踝骨折相关漏诊病例的原因及治疗。方法:自2002年3月至2010年6月,收治旋前-外旋型踝关节骨折103例,其中9例后踝骨折漏诊,男6例,女3例;年龄18~55岁,平均35.2岁;根据Lauge-Hansen分型均为旋前-外旋型损伤。术中经C形臂X线透视发现4例,术后住院期间发现2例,余3例为外院术后于门诊随访时发现。手术入路采用踝关节后外侧入路,直视下复位后采用空心螺钉或锁定钢板固定。手术后根据美国足踝外科医师协会(American Orthopaedic Foot and Ankle Society,AOFAS)踝-后足功能评分进行功能评定。结果:9例术后均获随访,时间14~30个月,平均17个月。无切口感染,切口均I期愈合。末次随访AOFAS踝-后足功能评分83.0±4.4,其中术中发现并处理4例平均分85.0±2.9,二次手术处理5例平均分81.0±5.3,差异无统计学意义。术后平均2.2个月经X线片证实全部病例骨性愈合,未发现内固定松动、退钉、断裂及血管神经损伤等并发症。结论:旋前-外旋型踝关节骨折可能合并隐匿性后踝骨折,临床医师需充分了解其暴力传导机制,仔细阅读X线侧位片,对可疑后踝损伤者可行CT或MRI检查;同时,术中内外踝固定满意后附加侧位透视有助于避免漏诊。  相似文献   

17.
目的探讨腓骨远端"Z"字延长治疗踝关节骨折后踝穴增宽的临床疗效。方法 2009年9月-2011年2月,采用腓骨远端"Z"字延长治疗5例踝关节骨折后踝穴增宽。男4例,女1例;年龄23~58岁,平均38岁。骨折内固定术后3个月开始功能锻炼后,逐渐出现踝穴增宽的相关症状,至此次入院时间为5~36个月,平均13.2个月。侧压试验阳性2例,阴性3例。根据美国矫形足踝协会(AOFAS)踝-后足功能评分为(50.2±17.3)分。结果术后切口均Ⅰ期愈合。5例均获随访,随访时间9~24个月,平均15.6个月。术后出现患肢轻中度肿胀,患侧足背前外侧皮肤麻木症状,均逐渐好转。X线片复查示腓骨均达骨性愈合,愈合时间为12~15周,平均13.5周。术后踝关节活动度较术前无明显改善。术后6个月AOFAS踝-后足功能评分为(76.8±11.2)分,末次随访时为(85.4±3.2)分,术后功能评分较术前显著提高,差异有统计学意义(P<0.05)。结论腓骨短缩是踝关节骨折后踝穴增宽主要原因;腓骨远端"Z"字延长可有效缩小踝穴宽度,增加踝关节稳定性,降低并发症发生率。  相似文献   

18.
Supramalleolar osteotomy (SMO) is an effective treatment for intermediate-stage varus ankle osteoarthritis (OA). This study aimed to investigate how clinical outcomes were associated with radiological changes and cartilage regeneration shown on arthroscopy before and after SMO in patients with intermediate-stage varus ankle OA. Twenty-six cases with intermediate-stage varus ankle OA underwent SMO with at least 1 year of postoperative follow-up. Clinical assessment was performed preoperatively and postoperatively using the visual analog scale (VAS), American Orthopedic Foot and Ankle Society ankle-hindfoot (AOFAS) scores, and their associations with postoperative changes in tibial ankle surface angle (TAS), talar tilt, tibial lateral surface angle, and heel alignment ratio. The degrees of cartilage regeneration in the tibia plafond and talar dome were observed via second-look arthroscopy. Afterward, their associations with the corresponding clinical outcomes were analyzed. There were significant changes in the TAS, talar tilt, and heel alignment ratio (p < .001, for all). However, there were no significant changes in the tibial lateral surface angle (p = .864) at the final follow-up compared to its preoperative value. Postoperative changes in TAS (p = .013) and the degree of cartilage regeneration (p = .028) in the talar dome significantly influenced the final follow-up AOFAS score. Changes in the TAS angle and the degree of cartilage regeneration after SMO were predictors of clinical outcomes after SMO. In particular, greater changes in the TAS angle corresponded to better clinical outcomes.  相似文献   

19.
Many studies have reported the relevance of depression on clinical outcomes after knee or hip arthroplasty. However, no study has investigated this relationship in total ankle arthroplasty (TAA). This study aimed to study the relationship between depressive symptoms and clinical outcomes after TAA. This retrospective comparative study investigated 40 patients who underwent TAA for end-stage ankle arthritis. Depressive symptoms were evaluated using the Center for Epidemiologic Studies Depression Scale and Patient Health Questionnaire-9. Preoperative and postoperative clinical outcomes were compared using the visual analog scale (VAS) and American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot scores by classifying the subjects into depressive and nondepressive groups. The mean follow-up duration was 24.3 ± 7.3 (range 14 to 37) months. There were 13 and 27 subjects in the depressive and nondepressive groups, respectively. There were no significant differences in the baseline characteristics and preoperative VAS and AOFAS scores between them. The postoperative VAS score was significantly higher in the depressive group (3.1 ± 2.4) than in the nondepressive group (1.4 ± 2.3; p < .001). The postoperative AOFAS scores in the depressive and nondepressive groups were 89.3 ± 13.4 and 95.0 ± 8.1, respectively, showing a significantly superior result in the latter group (p < .001). The clinical outcomes after TAA were poorer in the patients with depressive symptoms than in those without. Depressive symptoms are patient-specific factors or independent predictors that show less improvement after TAA. Therefore, clinical considerations of these symptoms are essential before TAA.  相似文献   

20.
BackgroundPatient-reported outcomes (PROs) are widely accepted measures for evaluating outcomes of surgical interventions. As patient-reported information is stored in electronic health records, it is essential that there are valid electronic PRO (ePRO) instruments available for clinicians and researchers. The aim of this study was to evaluate the validity of electronic versions of five widely used foot and ankle specific PRO instruments.MethodsAltogether 111 consecutive elective foot/ankle surgery patients were invited face-to-face to participate in this study. Patients completed electronic versions of the Foot and Ankle Ability Measure (FAAM), the Foot and Ankle Outcome Score (FAOS), the modified Lower Extremity Function Scale (LEFS), the Manchester–Oxford Foot Questionnaire (MOXFQ), and the Visual Analogue Scale Foot and Ankle (VAS-FA) on the day of elective foot and/or ankle surgery. Construct validity, coverage, and targeting of the scales were assessed.ResultsBased on general and predefined thresholds, construct validity, coverage, and targeting of the ePRO versions of the FAAM, the FAOS, the MOXFQ, and the VAS-FA were acceptable. Major issues arose with score distribution and convergent validity of the modified LEFS instrument.ConclusionsThe ePRO versions of the FAAM, the FAOS, the MOXFQ, and the VAS-FA provide valid scores for foot and ankle patients. However, our findings do not support the use of the modified LEFS as an electronic outcome measure for patients with orthopedic foot and/or ankle pathologies.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号