Veterinary and Comparative Orthopaedics and Traumatology最新文献_第10页

Stress Changes in the Canine Radius after Locking Plate Fixation Using Finite Element Analysis. 使用有限元分析法分析锁定钢板固定后犬桡骨的应力变化。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-09-01 Epub Date: 2024-03-06 DOI: 10.1055/s-0044-1782194

Norihiro Muroi, Sawako Murakami, Nobuo Kanno, Yasuji Harada, Yasushi Hara

{"title":"Stress Changes in the Canine Radius after Locking Plate Fixation Using Finite Element Analysis.","authors":"Norihiro Muroi, Sawako Murakami, Nobuo Kanno, Yasuji Harada, Yasushi Hara","doi":"10.1055/s-0044-1782194","DOIUrl":"10.1055/s-0044-1782194","url":null,"abstract":"Objective: The aim of this study was to evaluate the stress changes in the radii beneath the locking plates (LP) of dogs implanted with LP using finite element analysis (FEA).Study design: The study included radii harvested from eight dogs. After computed tomography (CT) scans of the forelimb, the articular surface of the radius was fixed using resin. Material tests were conducted to identify the yield and fracture points and for verification with FEA. The CT data of the radius were imported into FEA software. The radii were classified into three groups based on the placement of the LP (nonplate placement, intact group; 1 mm above the radial surface, LP + 1 mm group; 3 mm above the radial surface, LP + 3 mm group). Equivalent, maximum, and minimum principal stresses and minimum principal strain were measured after FEA at the radial diaphysis beneath the plate.Results: In shell elements, the LP + 1 mm and LP + 3 mm groups showed a significantly lower maximum principal stress compared with the intact group. In solid elements, the LP + 1 mm and LP + 3 mm groups showed a significantly higher equivalent stress and a significantly lower maximum principal stress compared with the intact group.Conclusion: When an axial load is applied to the radius, LP placement reduces the tension stress on the cortical bone of the radius beneath the plate, possibly related to implant-induced osteoporosis and bone formation in the cortical bone beneath the plate.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"213-222"},"PeriodicalIF":1.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140050917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Permanent Iatrogenic Fibular Nerve Injury following Tibial Plateau Levelling Osteotomy. 胫骨平台平整截骨术后永久性先天性腓骨神经损伤。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-09-01 Epub Date: 2024-03-06 DOI: 10.1055/s-0044-1782240

Oliver Anderson, Sophie Martin, Darren Carwardine, Kevin Parsons

引用次数: 0

Effect of Medial Opening Wedge and External Rotational Humeral Osteotomies on Medial Elbow Compartment Pressure: An Ex Vivo Study. 内侧开口楔形和外旋肱骨截骨术对肘关节内侧腔压力的影响：体外研究。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-07-01 Epub Date: 2024-02-23 DOI: 10.1055/s-0044-1779711

Ed Crystal, Alice Brettle, Thomas W Maddox, Dan Jones, Myles Benjamin Walton

{"title":"Effect of Medial Opening Wedge and External Rotational Humeral Osteotomies on Medial Elbow Compartment Pressure: An Ex Vivo Study.","authors":"Ed Crystal, Alice Brettle, Thomas W Maddox, Dan Jones, Myles Benjamin Walton","doi":"10.1055/s-0044-1779711","DOIUrl":"10.1055/s-0044-1779711","url":null,"abstract":"Objective: The aim of this study was to assess if the level of osteotomy (50 or 75% the length of the humerus), osteotomy angle (5, 10, or 20 degrees), direction of bone alteration (external rotational or medial opening wedge osteotomies), or orientation of osteotomy (perpendicular to the humeral long axis or perpendicular to the weight-bearing axis of the limb) affect pressure through the medial compartment of the elbow.Study design: Humeral osteotomies were performed at 50 and 75% the length of the humerus on 12 canine cadaver thoracic limbs and patient-specific three-dimensional (3D) printed plates applied to induce the desired alteration. Sensors were placed into the medial and lateral aspects of the elbow joint and the limb compressed to 90 N in a universal testing system.Results: Increasing the angle of the induced change had a significant effect on the decreased load through the medial compartment. Performing the osteotomy at 75% of humeral length from proximal was significantly more effective at reducing the medial elbow load than performing it at 50%. Opening wedge osteotomies were more effective than external rotational osteotomies, but both were effective. Changing the direction of the osteotomy (comparing transverse to oblique) did not significantly affect the load reduction through the medial compartment.Conclusion: Performing an osteotomy at a more distal location along the humerus and increasing the angle of the induced change increased the effectiveness of load-shifting humeral osteotomies.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"196-205"},"PeriodicalIF":1.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139941169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Canine Shoulder Arthroscopy for Anatomical and Safety Considerations. 评估犬肩关节镜的解剖和安全考虑因素。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-07-01 Epub Date: 2024-02-09 DOI: 10.1055/s-0044-1779497

Emily J Kennedy, Kayla M Corriveau, Ray Wilhite

{"title":"Evaluation of Canine Shoulder Arthroscopy for Anatomical and Safety Considerations.","authors":"Emily J Kennedy, Kayla M Corriveau, Ray Wilhite","doi":"10.1055/s-0044-1779497","DOIUrl":"10.1055/s-0044-1779497","url":null,"abstract":"Introduction: Arthroscopy is a well-established diagnostic modality for various orthopaedic conditions in veterinary medicine. The aim of this study was to describe the relationship of canine shoulder arthroscopy portals to major muscular, ligamentous, and neurovascular structures for anatomical and safety considerations.Materials and methods: Arthroscopic exploration of 20 adult canine cadaver shoulders was performed. Each shoulder region was dissected layer by layer to the level of the joint. Musculotendinous, ligamentous, and cartilaginous lesions were documented. The distance was measured from each portal to neurovascular structures encountered.Results: Muscular lesions included the deltoideus, cleidobrachialis, omotransversarius, supraspinatus, infraspinatus, and teres minor muscles. The neurovascular structures identified were the omobrachial vein, the caudal circumflex humeral artery, axillobrachial vein, and branches of the axillary nerve. Lesions to the lateral glenohumeral ligament were noted from the caudal instrument portal and the middle arthroscope portal. Iatrogenic articular cartilage injuries were identified on the caudal humeral head and the glenoid.Conclusion: This study supports the safety of lateral shoulder arthroscopy in dogs. Most local neurovascular structures are unaffected with traditional scope portal positions. Musculotendinous lesions are unavoidable due to the extensive muscling surrounding the shoulder but are unlikely to cause severe complications postoperatively.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"181-188"},"PeriodicalIF":1.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139713327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-Term Outcome and Complications after Transcondylar Screw Placement for Canine Humeral Intracondylar Fissure. 经髁螺钉植入治疗犬肱骨髁内裂的长期效果和并发症。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-07-01 Epub Date: 2024-01-08 DOI: 10.1055/s-0043-1777808

Daniel Low, Victoria Hutchings, Scott Rutherford

{"title":"Long-Term Outcome and Complications after Transcondylar Screw Placement for Canine Humeral Intracondylar Fissure.","authors":"Daniel Low, Victoria Hutchings, Scott Rutherford","doi":"10.1055/s-0043-1777808","DOIUrl":"10.1055/s-0043-1777808","url":null,"abstract":"Objective: The aim of this study was to report postoperative complications and long-term outcomes following transcondylar screw placement for humeral intracondylar fissure (HIF).Study design: It was a retrospective single-centre case series. Medical records (2018-2022) were reviewed for dogs with HIF treated with transcondylar screw placement. Data collected included signalment, concurrent orthopaedic disease, partial or complete HIF, surgeon, surgical approach, surgical technique and implant type, transcondylar screw angulation, postoperative complications and outcomes. Long-term outcome was assessed with owner questionnaire, orthopaedic examination and follow-up radiography. Statistical analysis was performed to identify risk factors predisposing to a complication or a poor outcome.Results: Forty-seven dogs (57 elbows) met the inclusion criteria; long-term follow-up was available in 41 dogs (50 elbows). Minor and major medical complications were noted in seven and three elbows respectively. The total complication rate was 17.5%. Increasing age was significantly associated with a reduced risk of postoperative complications (p = 0.0051). No other risk factors were identified. A postoperative complication was not associated with a less than full outcome (p = 0.5698).Conclusion: Transcondylar screw placement for HIF is associated with a low complication rate and good outcome.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"206-212"},"PeriodicalIF":1.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139405146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of an Orthogonal Locking Plate and Primary Plate Working Length on Construct Stiffness and Plate Strain in an In vitro Fracture-Gap Model. 正交锁定板和主板工作长度对体外断裂间隙模型中结构刚度和板应变的影响

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-07-01 Epub Date: 2024-02-08 DOI: 10.1055/s-0044-1779496

Brett Walter de Bruyn, Mark Glyde, Robert Day, Giselle Hosgood

{"title":"Effect of an Orthogonal Locking Plate and Primary Plate Working Length on Construct Stiffness and Plate Strain in an In vitro Fracture-Gap Model.","authors":"Brett Walter de Bruyn, Mark Glyde, Robert Day, Giselle Hosgood","doi":"10.1055/s-0044-1779496","DOIUrl":"10.1055/s-0044-1779496","url":null,"abstract":"Objective: The aim of this study was to compare stiffness and strain of an in vitro fracture-gap model secured with a primary 3.5-mm locking compression plate (LCP) at three primary plate working lengths without and with an orthogonal 2.7-mm LCP.Study design: Primary plate screw configurations modeled short working length (SWL), medium working length (MWL), and long working length (LWL) constructs. Construct stiffness with and without an orthogonal plate during nondestructive four-point bending and torsion, and plate surface strain measured during bending, was analyzed.Results: Single plate construct stiffness was significantly, incrementally, lower in four-point bending and torsion as working length was extended. Addition of an orthogonal plate resulted in significantly higher bending stiffness for SWL, MWL, and LWL (p < 0.05) and torsional stiffness for MWL and LWL (p < 0.05). Single plate construct strain was significantly, incrementally, higher as working length was extended. Addition of an orthogonal plate significantly lowered strain for SWL, MWL, and LWL constructs (p < 0.01).Conclusion: Orthogonal plate application resulted in higher bending and torsional construct stiffness and lower strain over the primary plate in bending in this in vitro model. Working length had an inverse relationship with construct stiffness in bending and torsion and a direct relationship with strain. The inverse effect of working length on construct stiffness was completely mitigated by the application of an orthogonal plate in bending and modified in torsion.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"173-180"},"PeriodicalIF":1.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139708503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical Testing of Sliding on Pivot-Locking Clamp (SOP-LC) Fracture Repair System in Four-Point Bending and Torsion. 四点弯曲和扭转滑动枢轴锁定夹（SOP-LC）断裂修复系统的机械测试。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-07-01 Epub Date: 2024-05-02 DOI: 10.1055/s-0043-1778682

Angel Miller

{"title":"Mechanical Testing of Sliding on Pivot-Locking Clamp (SOP-LC) Fracture Repair System in Four-Point Bending and Torsion.","authors":"Angel Miller","doi":"10.1055/s-0043-1778682","DOIUrl":"10.1055/s-0043-1778682","url":null,"abstract":"Objectives: The first objective of this study was to compare the mechanical performance of a straight and contoured rod for the sliding on pivot-locking clamp (SOP-LC) system. The second objective was to compare single-cycle bending and torsion of the SOP-LC rod-bone constructs to a bone gap model between two clamp configurations.Study design: First experiment, 5 mm diameter rods from the 3.5 mm SOP-LC system, 4 straight and 4 bent rods were mechanically compared in four-point bending. The second experiment, 8 constructs with clamps on a single side of the rod and 8 constructs with clamps on alternating sides were compared in four-point bending and torsion. A torque limiting screwdriver at 2.5N was used for all constructs.Results: There were not significant differences between the noncontoured versus contoured rods. Constructs with clamps on a single side had a significantly higher yield load, yield displacement and bending strength, but the constructs with alternating clamps had a significantly higher initial torsional stiffness. There were no other significant differences. Mild clamp slippage and mild screw bending were noted in all the torsion tested constructs graphically with multiple stiffness slopes and visually on the post-tested constructs.Conclusion: Torque applied to initial screw placement may play a role in reducing clamp slippage. Although bending yield load, bending yield displacement, bending strength and torsional stiffness were improved by different clamp placement, clinically this will depend on fracture type. Further studies are needed for clinical significance.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"163-172"},"PeriodicalIF":1.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140870340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gait Analysis of Amputee Dogs Using a Pressure-Sensitive Walkway. 使用压敏步行道对截肢犬进行步态分析

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-07-01 Epub Date: 2024-03-19 DOI: 10.1055/s-0044-1779727

Túlio G Filho, Sheila C Rahal, Washington T Kano, Luciane R Mesquista, Maria J Mamprim, Jeana P Silva, Felipe S Agostinho

{"title":"Gait Analysis of Amputee Dogs Using a Pressure-Sensitive Walkway.","authors":"Túlio G Filho, Sheila C Rahal, Washington T Kano, Luciane R Mesquista, Maria J Mamprim, Jeana P Silva, Felipe S Agostinho","doi":"10.1055/s-0044-1779727","DOIUrl":"10.1055/s-0044-1779727","url":null,"abstract":"Objective: The aim of this study was to perform gait analysis using a pressure-sensitive walkway in dogs submitted to high (total) or low amputation (partial) of one forelimb or hindlimb.Study design: A total of 39 dogs met the inclusion criteria. The reasons for the amputations were motor vehicle accidents in 38 dogs and possible limb malformation in 1 dog. The amputee dogs were divided into four groups: G1 (n = 10)-high forelimb; G2 (n = 10)-low forelimb; G3 (n = 9)-high hindlimb; and G4 (n = 10)-low hindlimb. For kinetic evaluation, the dogs were walked across a pressure-sensitive walkway.Results: In dogs with forelimb amputation, the percentage of body weight (%BW) distribution on the contralateral forelimb was 50.7% in cases of high amputation and 55.5% in cases of low amputation, while the %BW distribution on the hindlimbs, mainly in the ipsilateral hindlimb, was 27.9% in cases of high amputation and 27.1% in cases of low amputation. In cases of high amputation of the hindlimb, the %BW distribution was 71.5% on the forelimbs and 29.7% on the contralateral hindlimb, while in cases of low amputation, the distribution was mainly for the contralateral hindlimb and ipsilateral forelimb. No statistical difference was noted between the amputation levels, except for the contralateral limb in cases of low and high amputation of the hindlimbs concerning the overload percentage and %BW distribution.Conclusion: The amputation level of one forelimb did not influence the %BW distribution; however, in the hindlimb, this was higher for the contralateral limb in dogs submitted to high amputation.","PeriodicalId":51204,"journal":{"name":"Veterinary and Comparative Orthopaedics and Traumatology","volume":" ","pages":"189-195"},"PeriodicalIF":1.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140177588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reducing Plate Strain with Orthogonal Plating. 用正交电镀减少钢板应变

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-07-01 Epub Date: 2024-07-16 DOI: 10.1055/s-0044-1787966

Simon C Roe

引用次数: 0

Erratum: Effect of Medial Opening Wedge and External Rotational Humeral Osteotomies on Medial Elbow Compartment Pressure: An Ex Vivo Study. 更正：肘关节内侧开口楔形和外旋肱骨截骨术对肘关节内侧腔压力的影响：体外研究。

IF 1 2区农林科学

Veterinary and Comparative Orthopaedics and Traumatology Pub Date : 2024-07-01 Epub Date: 2024-04-26 DOI: 10.1055/s-0044-1786748

Ed Crystal, Alice Brettle, Thomas W Maddox, Dan Jones, Myles Benjamin Walton

引用次数: 0