Reconstructive Review最新文献_第9页

Experience with Modular Necks for Cemented Total Hip Arthroplasty 模组颈在骨水泥全髋关节置换术中的应用

Reconstructive Review Pub Date : 2016-04-26 DOI: 10.15438/RR.6.1.132

H. Cameron, T. Mctighe

引用次数: 3

Comparison of Functional Outcomes of Total Knee Arthroplasty Using Two Different Single Radius Implants 两种不同单桡骨假体全膝关节置换术的功能效果比较

Reconstructive Review Pub Date : 2016-04-26 DOI: 10.15438/RR.6.1.134

A. Pourmoghaddam, M. Dettmer, Stefany J. K. Malanka, S. Kreuzer

引用次数: 2

Trunnion Corrosion causing Failure in Metal-on-Polyethylene Total Hip Arthroplasty with Monolithic Femoral Components 金属-聚乙烯全髋关节置换术中耳轴腐蚀导致失败

Reconstructive Review Pub Date : 2016-04-26 DOI: 10.15438/RR.6.1.131

M. Manthe, Kurt E. Blasser, C. Beauchamp, M. O’Connor

引用次数: 10

Stress analysis of a Burch-Schneider cage in an acetabular bone defect: A case study Burch-Schneider笼在髋臼骨缺损中的应力分析:一个案例研究

Reconstructive Review Pub Date : 2016-04-26 DOI: 10.15438/RR.6.1.141

K. Plessers, H. Mau

{"title":"Stress analysis of a Burch-Schneider cage in an acetabular bone defect: A case study","authors":"K. Plessers, H. Mau","doi":"10.15438/RR.6.1.141","DOIUrl":"https://doi.org/10.15438/RR.6.1.141","url":null,"abstract":"Burch-Schneider cages are often used for the treatment of acetabular bone defects. In several clinical studies these cages have shown good mid- to long-term results. However, a higher failure rate has been reported in large Paprosky IIIB defects compared with smaller Paprosky II-IIIA defects. This study aims to investigate the effect of cage support on cage failure by means of finite element analysis. The Von Mises stresses in both the implant and the bone are analyzed for a Burch-Schneider cage used in the following scenarios: (1) a large acetabular bone defect, (2) a small acetabular bone defect and (3) a large acetabular bone defect in combination with a reinforcement plate. The results show that implant and bone stresses are higher in the large defect (99 th percentile of 146.6 and 73.5 MPa respectively) than in the small defect (99 th percentile of 43.9 and 47.9 MPa respectively). Adding a reinforcement plate to posteriorly support the cage decreases the stresses but not fully compensates for the missing bone support (99 th percentile of 93.1 and 55.3 MPa respectively). Since high stresses cause an increased risk for fatigue failure and implant loosening, sufficient implant support is required to reduce the risk of cage failure.","PeriodicalId":20884,"journal":{"name":"Reconstructive Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67682761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Multimodal Venous Thromboembolism Prophylaxis with Preoperative Thrombophilia Screening Examinations for Total Hip and Knee Arthroplasties 全髋关节和膝关节置换术术前血栓形成筛查检查预防多模式静脉血栓栓塞

Reconstructive Review Pub Date : 2015-12-31 DOI: 10.15438/RR.5.4.117

Y. Oshima, J. Fetto

{"title":"Multimodal Venous Thromboembolism Prophylaxis with Preoperative Thrombophilia Screening Examinations for Total Hip and Knee Arthroplasties","authors":"Y. Oshima, J. Fetto","doi":"10.15438/RR.5.4.117","DOIUrl":"https://doi.org/10.15438/RR.5.4.117","url":null,"abstract":"Objective: To evaluate the efficacy of a multimodal venous thromboembolism (VTE) prophylaxis including preoperative thrombophilia screening for total hip and knee arthroplasties (THAs and TKAs) and to consider the possibility of utilizing thrombophilic blood markers for preoperative identification of patients with high risk for VTE.. Method: The physical evaluation, involving the medical history of previous VTE, recent malignancy, and preoperative prolonged immobility status, and the existence of deep venous thrombosis (DVT) detected by duplex venous ultrasonography were assessed. Then, the patients with high risk of VTE were offered an inferior vena cava (IVC) filter preoperatively. The laboratory examination of complete blood count and standard biochemistry with factor VIII, activated protein C resistance (APCR), and prothrombin gene mutation were also measured. The operations were performed under regional anesthesia in most cases, and with venous foot pump (VFP), and early mobilization and aspirin (325 mg) daily were applied postoperatively. Results: IVC filters were placed in 6, and acute DVT was detected in 5 of the total 99 cases. However, there was no critical bleeding or fatal VTE. In the blood markers, prothrombin mutation and factor VIII seemed to have a relation to DVT. Conclusion: The efficacy of our multimodal protocol was confirmed. Further research is necessary to apply factor VIII and prothrombin gene mutation as thrombophilic blood markers.","PeriodicalId":20884,"journal":{"name":"Reconstructive Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67682011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Early Experience with a Modern Generation Knee System: Average 2 Years’ Follow-up 现代膝关节系统的早期经验:平均2年随访

Reconstructive Review Pub Date : 2015-12-31 DOI: 10.15438/RR.5.4.125

T. Paszicsnyek

{"title":"Early Experience with a Modern Generation Knee System: Average 2 Years’ Follow-up","authors":"T. Paszicsnyek","doi":"10.15438/RR.5.4.125","DOIUrl":"https://doi.org/10.15438/RR.5.4.125","url":null,"abstract":"Arthritis in the knee is a leading cause of pain and disability with total knee arthroplasty (TKA) often the treatment of choice after failure of more conservative treatments. TKA has been demonstrated to be one of the most successful procedures performed. However, despite the good long-term survivorship rates, patient satisfaction is still an issue post TKA with over 20% of patients exhibiting patient dissatisfaction most commonly due to anterior knee pain (over 18-28% patients) and mediolateral or varus-valgus instability. Recent studies have demonstrated that collateral ligament strains are altered post TKA which may lead to laxity and/or tightness of the ligaments resulting in patient discomfort, pain, stiffness and/or instability post TKA. As a result, it may be beneficial to ensure ligamentous strains after TKA are similar or close to the native situation. The purpose of this study was to evaluate the clinical and radiographic results of the Unity Knee™ Total Knee System (Corin Ltd, Cirencester, UK), a modern generation, single-radius total knee replacement (TKR) and its accompanying instrumentation which is designed to help maintain proper ligament balance and restore the medial jointline. A total of 89 knees (89 patients) were implanted with the device in a single surgeon series. All patients were assessed using the American Knee Society Score (AKSS), the Oxford Knee Score (OKS), and radiographs. There was 1 revision due to infection and Kaplan-Meier survivorship was 98.9% at 2 years. The mean AKSS knee score for the total cohort was 87.1 ± 7.98 and the mean Oxford Knee score was 45.89 + 3.69. Radiographic review found no signs of radiographic failure in any of the knees. This study demonstrates good survivorship, clinical, and radiographic results at 2 years for this TKR.","PeriodicalId":20884,"journal":{"name":"Reconstructive Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67681574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Modular Head Mismatch in THA THA模块头不匹配

Reconstructive Review Pub Date : 2015-12-31 DOI: 10.15438/RR.5.4.128

T. Mctighe

{"title":"Modular Head Mismatch in THA","authors":"T. Mctighe","doi":"10.15438/RR.5.4.128","DOIUrl":"https://doi.org/10.15438/RR.5.4.128","url":null,"abstract":"Modular femoral heads have been used successfully since the mid-1980s in total hip arthroplasty. The use of metallic modular junctions presents a unique set of advantages and problems for use in total hip arthroplasty (THA). The separation of the head from the stem by a Morse taper has provided many benefits on the precision and balancing the reconstructed joint. Historically few complications have been reported for the modular Morse taper connection between the femoral head and trunnion of the stem in metal-on-polyethylene bearings. However, the risks or concerns are a little harder to identify and deal with. Certainly corrosion, and fatigue failure are the two most prevalent concerns but now the specifics of fretting wear and corrosive wear increasing particulate debris and the potential biological response is having an impact on the design and potential longevity of the reconstructed hip. This paper is dealing with a simpler consequence of head/stem modularity. Modular head mismatch to the socket bearing articulation. Two patients by two different surgeons at two different hospitals underwent cementless THA. Both patients were female and both presented with degenerative changes to the hip articulation. Both patients underwent hip replacement via a direct anterior approach using a standard hemispherical porous coated shell. One patient had a ceramic on ceramic bearing and the other had a ceramic head on a polyethylene liner. Both patients had a 32 mm inside diameter liner implanted and both had a 36 mm ceramic femoral head. The ceramic on ceramic mismatch was not recognized until the second office visit at eight weeks. The ceramic poly mismatch was not recognized until first office visit at six weeks. Both underwent correction surgery. These two cases demonstrate human mistakes can be made and steps need to be established to prevent future mistakes of this nature.","PeriodicalId":20884,"journal":{"name":"Reconstructive Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67682362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

New Instrumentation Reduces Operative Time in Medial Unicompartmental Knee Arthroplasty Using the Oxford Mobile Bearing Design 使用牛津移动轴承设计的新器械减少内侧单室膝关节置换术的手术时间

Reconstructive Review Pub Date : 2015-12-31 DOI: 10.15438/RR.5.4.126

K. Berend, J. Hurst, M. Morris, Joanne B. Adams, A. Lombardi

引用次数: 6

The Power of One Publication 一个出版物的力量

Reconstructive Review Pub Date : 2015-12-31 DOI: 10.15438/RR.5.4.127

T. Mctighe

引用次数: 0

Third-body Wear Damage Produced in CoCr Surfaces by Hydroxyapatite and Alumina Ceramic Debris: A 10-cycle Metal-on-Metal Simulator Study 羟基磷灰石和氧化铝陶瓷碎片在CoCr表面产生的第三体磨损损伤:一个10循环金属对金属模拟器研究

Reconstructive Review Pub Date : 2015-12-31 DOI: 10.15438/RR.5.4.129

T. Halim, M. Burgett-Moreno, T. Donaldson, I. Clarke

{"title":"Third-body Wear Damage Produced in CoCr Surfaces by Hydroxyapatite and Alumina Ceramic Debris: A 10-cycle Metal-on-Metal Simulator Study","authors":"T. Halim, M. Burgett-Moreno, T. Donaldson, I. Clarke","doi":"10.15438/RR.5.4.129","DOIUrl":"https://doi.org/10.15438/RR.5.4.129","url":null,"abstract":"Ceramic particles are believed to be particularly abrasive due to their extreme hardness. Ceramic debris has been reported in retrieved total hip arthroplasty (THA) due to chipping and fracture of alumina components or by flaking of hydroxyapatite from implant coatings. However there appears to be no abrasion ranking of such particle behavior. The hypotheses in this study were, i) alumina particles would create large scratches in CoCr surfaces and ii) hydroxyapatite would produce very mild scratching comparable to bone-cement particles. Hydroxyapatite beads came in two types of commercial powders while the flakes were scraped from retrieved femoral stems. Alumina beads came in two commercial powders and flakes were retrieved from a fractured ceramic head. Particle morphologies were determined by SEM and CoCr surface damage by interferometry and SEM. Six 38-mm MOM were mounted inverted in a hip simulator and run with ceramic particles inserted for a 10-second test. Surface-roughness ranking after 10-second abrasion test revealed that bone cement and hydroxyapatite produced least damage to CoCr surfaces while alumina produced the most. Alumina increased surface roughness 19-fold greater than either hydroxyapatite or bone-cement particles. The alumina debris produced numerous scratches typically 20-80 µm wide with some up to 140µm wide. Surprisingly the alumina beads and flakes were pulverized within the 10-second test interval and remained adherent to the CoCr surfaces. Additionally, the hydroxyapatite although also a ceramic had no more effect on CoCr than the bone-cement debris. Use of well-characterized and commercially available alumina and hydroxyapatite powders appeared advantageous for abrasion tests. These new data indicated that such ceramic powders have merit.","PeriodicalId":20884,"journal":{"name":"Reconstructive Review","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67682470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5