SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 47 55
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This document discusses techniques for high tibial osteotomy (HTO) and the potential role of computer-assisted orthopedic surgery (CAOS) in improving HTO. It notes various HTO techniques including closing-wedge, opening-wedge, and dome osteotomies. It states that navigation aids (NAV) could enhance HTO and that CAOS may simplify the procedure over time as the technology improves, though surgical experience remains important and CAOS is currently best used in specialized centers given its complexity.
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SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 47 55
This document discusses techniques for high tibial osteotomy (HTO) and the potential role of computer-assisted orthopedic surgery (CAOS) in improving HTO. It notes various HTO techniques including closing-wedge, opening-wedge, and dome osteotomies. It suggests that navigation aids (NAV) could enhance HTO. It acknowledges that CAOS may simplify and improve HTO but cautions that the technique is demanding and should only be used in specialized centers with experienced surgeons, as high-tech tools cannot replace surgical skill and experience.
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The document discusses surgical correction of medial laxity and malalignment in a patient's knee through multiple procedures. It recommends performing an intra-articular surgery like a total knee arthroplasty first to address instability before conducting an osteotomy to address alignment. The osteotomy should be planned carefully based on preoperative templates and imaging to fully correct deformities while avoiding complications from the additional surgery.
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1) The author's 10-year results for 600 initial cemented cases showed a survivorship of 95.6% requiring no further surgery and 97.5% having their original components, demonstrating cemented fixation works well.
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SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 47 55
This document discusses techniques for high tibial osteotomy (HTO) and the potential role of computer-assisted orthopedic surgery (CAOS) in improving HTO. It notes various HTO techniques including closing-wedge, opening-wedge, and dome osteotomies. It suggests that navigation aids (NAV) could enhance HTO. It acknowledges that CAOS may simplify and improve HTO but cautions that the technique is demanding and should only be used in specialized centers with experienced surgeons, as high-tech tools cannot replace surgical skill and experience.
Briard Jl. How To Correct Extra Articular Deformity. Slide 41 56
The document discusses surgical correction of medial laxity and malalignment in a patient's knee through multiple procedures. It recommends performing an intra-articular surgery like a total knee arthroplasty first to address instability before conducting an osteotomy to address alignment. The osteotomy should be planned carefully based on preoperative templates and imaging to fully correct deformities while avoiding complications from the additional surgery.
SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 40 44
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The document discusses several topics related to minimally invasive knee replacement surgery including:
1. Functional outcomes tend to be similar to traditional knee replacements but with less flexion and quadriceps avoidance.
2. Computer navigation can improve alignment accuracy but does not provide clear functional benefits.
3. Controversy exists around whether smaller incisions actually provide benefits or increased risks compared to standard incisions. Pain management is important for recovery.
Briard Jl. How To Correct Extra Articular Deformity. Slide 7 14
The document discusses deformities of the knee and their correction during total knee arthroplasty. For genu varum, which is primarily a tibial deformity, correcting the tibial joint line from oblique to perpendicular with a medial release is sufficient. For genu valgum femur, the femoral joint line needs to be reoriented from oblique to horizontal through lateral release and compensating for bone missing from the lateral condyle by adjusting the femoral component rotation. Flexion gap can be maintained by releasing the medial collateral ligament and elongating it.
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The document discusses surgical techniques for dealing with extra-articular deformities in total knee arthroplasty (TKA). It notes that lateral collateral ligament release for femoral varum is difficult and risks postoperative instability, while medial release is safer. It recommends intra-articular correction of extra-articular deformity over extra-articular procedures. For femoral varum, it suggests medial release, lateral condyle resection, femoral rotation in internal rotation, or a medial condylar osteotomy. For tibial valgum, it recommends a lateral collateral ligament release.
Briard Jl. How To Correct Extra Articular Deformity. Slide 27 40
This document discusses lateral knee instability issues that can arise from weak or loose lateral structures after a knee replacement. It notes the danger of subsequent medial instability if too much of the medial plateau is resected. For knees with elongated and weak lateral structures, it recommends using the transepicondylar line as a guide and a constrained implant design for small deformities. Alternatively, a lateral condyle osteotomy could be considered. It also discusses various tibial and femoral osteotomy techniques for addressing leg alignment issues greater than 8-10 degrees. Femoral deformity corrections are noted to be more difficult due to their influence on both extension and flexion gaps.
Briard Jl. How To Correct Extra Articular Deformity. Slide 1 6
To correct deformities outside the knee joint without causing instability during a total knee replacement, the surgeon must consider both the shape of the bones and the proper alignment of the mechanical axis. The knee should be stabilized in a neutral horizontal or perpendicular joint line by aligning the prosthetic femur and tibia normally. This can be achieved by adjusting the resection of the medial femoral condyle or lateral tibial plateau to create an horizontal joint line in extension.
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The document discusses key design aspects of mobile bearing knees that impact stability, motion, and wear. Maximum conformity can be achieved through multi-radius or constant radius femoral designs. Motion of the bearing relative to the tibial tray can be uni-directional or multi-directional, with the latter posing higher wear risks. Stability also depends on jump height, post-cam engagement, and surgical technique. While mobile bearing knees aim to reduce wear, their mechanisms may fail over time and not all designs provide equal longevity.
Jennings Lm. Wear Of Knee Replacements Influence Of Kinematics And Design
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Johnson Dp. Mis Knee Replacement. What Are The Functional Benefits. Slide 1 18
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SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 1 39
The document discusses the role of computer assisted surgery (CAS) in orthopedics. It notes that CAS aims to improve implant longevity, reduce human error, and simplify surgical techniques. While CAS can increase accuracy, early systems were too troublesome with complex feedback and safety systems. The document examines studies on the benefits of CAS for total knee arthroplasty, finding it can reduce outliers but does not clearly provide better patient outcomes. Large sample sizes are still needed to detect small differences. Accuracy depends on multiple factors introducing errors. While CAS aims to benefit patients, early techniques also increased costs and surgery time. [/SUMMARY]
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SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 40 44
This surgical procedure involves reaming the acetabulum, inserting a cup, and adjusting leg length and offset before final reduction to allow examination of flexion, extension, rotation ranges of motion.
Johnson Dp. Mis Knee Replacement. What Are The Functional Benefits. Slide 19 36
The document discusses several topics related to minimally invasive knee replacement surgery including:
1. Functional outcomes tend to be similar to traditional knee replacements but with less flexion and quadriceps avoidance.
2. Computer navigation can improve alignment accuracy but does not provide clear functional benefits.
3. Controversy exists around whether smaller incisions actually provide benefits or increased risks compared to standard incisions. Pain management is important for recovery.
Briard Jl. How To Correct Extra Articular Deformity. Slide 7 14
The document discusses deformities of the knee and their correction during total knee arthroplasty. For genu varum, which is primarily a tibial deformity, correcting the tibial joint line from oblique to perpendicular with a medial release is sufficient. For genu valgum femur, the femoral joint line needs to be reoriented from oblique to horizontal through lateral release and compensating for bone missing from the lateral condyle by adjusting the femoral component rotation. Flexion gap can be maintained by releasing the medial collateral ligament and elongating it.
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The document discusses the history and future of total knee replacement (TKR). It describes the two main approaches in TKR design - the anatomical approach which preserves soft tissues and the functional approach which simplifies knee mechanics. While the anatomical approach aims to maintain knee function, issues with component alignment and fixation led to the functional approach. However, this resulted in high contact stresses due to incongruent surfaces. More recent mobile-bearing designs aim to allow motion while reducing stresses, but surgery is more complex. The document questions whether newer techniques like computer navigation can improve outcomes long-term.
Briard Jl. How To Correct Extra Articular Deformity. Slide 15 26
The document discusses surgical techniques for dealing with extra-articular deformities in total knee arthroplasty (TKA). It notes that lateral collateral ligament release for femoral varum is difficult and risks postoperative instability, while medial release is safer. It recommends intra-articular correction of extra-articular deformity over extra-articular procedures. For femoral varum, it suggests medial release, lateral condyle resection, femoral rotation in internal rotation, or a medial condylar osteotomy. For tibial valgum, it recommends a lateral collateral ligament release.
Briard Jl. How To Correct Extra Articular Deformity. Slide 27 40
This document discusses lateral knee instability issues that can arise from weak or loose lateral structures after a knee replacement. It notes the danger of subsequent medial instability if too much of the medial plateau is resected. For knees with elongated and weak lateral structures, it recommends using the transepicondylar line as a guide and a constrained implant design for small deformities. Alternatively, a lateral condyle osteotomy could be considered. It also discusses various tibial and femoral osteotomy techniques for addressing leg alignment issues greater than 8-10 degrees. Femoral deformity corrections are noted to be more difficult due to their influence on both extension and flexion gaps.
Briard Jl. How To Correct Extra Articular Deformity. Slide 1 6
To correct deformities outside the knee joint without causing instability during a total knee replacement, the surgeon must consider both the shape of the bones and the proper alignment of the mechanical axis. The knee should be stabilized in a neutral horizontal or perpendicular joint line by aligning the prosthetic femur and tibia normally. This can be achieved by adjusting the resection of the medial femoral condyle or lateral tibial plateau to create an horizontal joint line in extension.
Briard Jl. Are All Mb Knees The Same. Slide 1 28
The document discusses key design aspects of mobile bearing knees that impact stability, motion, and wear. Maximum conformity can be achieved through multi-radius or constant radius femoral designs. Motion of the bearing relative to the tibial tray can be uni-directional or multi-directional, with the latter posing higher wear risks. Stability also depends on jump height, post-cam engagement, and surgical technique. While mobile bearing knees aim to reduce wear, their mechanisms may fail over time and not all designs provide equal longevity.
Jennings Lm. Wear Of Knee Replacements Influence Of Kinematics And Design
The document discusses factors that influence wear in knee replacements, including prosthesis design and kinematics. It finds that rotating platform mobile bearing knee replacements significantly reduce wear and osteolytic potential compared to fixed bearing knees, but some of these benefits can be lost if lift-off of the femoral condyle occurs, increasing medial/lateral wear in both designs. Careful surgery and soft tissue management are important to wear performance. Rotating platform mobile bearing knees showed a four-fold reduction in wear rate compared to fixed bearing knees in simulated tests.
Johnson Dp. Mis Knee Replacement. What Are The Functional Benefits. Slide 1 18
MIS knee replacement can provide functional benefits such as faster rehabilitation, shorter hospital stays, and improved range of motion compared to traditional knee replacement. However, MIS knee replacement also has risks such as inferior component placement and revision surgery that may be higher in the initial learning curve as the surgeon gains experience with the technique. The benefits of MIS must be weighed against the potential risks.
SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 1 39
The document discusses the role of computer assisted surgery (CAS) in orthopedics. It notes that CAS aims to improve implant longevity, reduce human error, and simplify surgical techniques. While CAS can increase accuracy, early systems were too troublesome with complex feedback and safety systems. The document examines studies on the benefits of CAS for total knee arthroplasty, finding it can reduce outliers but does not clearly provide better patient outcomes. Large sample sizes are still needed to detect small differences. Accuracy depends on multiple factors introducing errors. While CAS aims to benefit patients, early techniques also increased costs and surgery time. [/SUMMARY]
Total Knee Replacement
This document discusses the evolution and design of total knee arthroplasty (TKA). It describes how early TKA designs in the 1970s-1980s led to improved designs that better replicated normal knee biomechanics. The key developments included posterior cruciate ligament retaining versus substituting designs, improved patellofemoral tracking, and converting flexion-extension gaps. The document outlines the surgical technique for TKA, including approaches, bone cuts, ligament balancing, and the goals of restoring alignment and stability while maximizing range of motion.
Primary total knee arthroplasty
Primary Total Knee Arthroplasty has evolved since the 19th century with various prosthetic designs introduced over time. Prosthetic design considerations include femoral rollback, modularity, constraint, and whether to retain or sacrifice the cruciate ligaments. Radiographs are important for preoperative planning to assess alignment and bone defects. Surgical goals include restoring mechanical alignment, joint line, balanced soft tissues, and normal patellofemoral tracking. Key steps include femoral and tibial cuts, balancing the knee in flexion and extension, and addressing any flexion contractures or deformities. Complications can include nerve palsies, vascular issues, stiffness, infections, and loosening. With careful patient selection, planning and technique, total knee
Briard Jl. Are All Mb Knees The Same. Slide 29 53
The document discusses the advantages of rotating platform mobile bearing knee replacements compared to fixed bearing designs. It notes that rotating platforms experience less backside wear and osteolysis than fixed bearings due to their unidirectional motion which reduces wear particles. Studies have shown rotating platforms have failure rates of 97.7-98.3% at 12-20 years compared to higher failure rates for mobile bearings.
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SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 40 44
SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 40 44
Johnson Dp. Mis Knee Replacement. What Are The Functional Benefits. Slide 19 36
Johnson Dp. Mis Knee Replacement. What Are The Functional Benefits. Slide 19 36
Briard Jl. How To Correct Extra Articular Deformity. Slide 7 14
Briard Jl. How To Correct Extra Articular Deformity. Slide 7 14
Briard Jl. How To Correct Extra Articular Deformity. Slide 15 26
Briard Jl. How To Correct Extra Articular Deformity. Slide 15 26
Briard Jl. How To Correct Extra Articular Deformity. Slide 27 40
Briard Jl. How To Correct Extra Articular Deformity. Slide 27 40
Briard Jl. How To Correct Extra Articular Deformity. Slide 1 6
Briard Jl. How To Correct Extra Articular Deformity. Slide 1 6
Jennings Lm. Wear Of Knee Replacements Influence Of Kinematics And Design
Jennings Lm. Wear Of Knee Replacements Influence Of Kinematics And Design
Johnson Dp. Mis Knee Replacement. What Are The Functional Benefits. Slide 1 18
Johnson Dp. Mis Knee Replacement. What Are The Functional Benefits. Slide 1 18
SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 1 39
SøRen Toksvig Larsen. The Role Of Cas (Computer Assisted Surgery). Slide 1 39
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This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
JavaLand 2024: Application Development Green Masterplan
My presentation slides I used at JavaLand 2024
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
A Comprehensive Guide to DeFi Development Services in 2024
DeFi represents a paradigm shift in the financial industry. Instead of relying on traditional, centralized institutions like banks, DeFi leverages blockchain technology to create a decentralized network of financial services. This means that financial transactions can occur directly between parties, without intermediaries, using smart contracts on platforms like Ethereum.
In 2024, we are witnessing an explosion of new DeFi projects and protocols, each pushing the boundaries of what’s possible in finance.
In summary, DeFi in 2024 is not just a trend; it’s a revolution that democratizes finance, enhances security and transparency, and fosters continuous innovation. As we proceed through this presentation, we'll explore the various components and services of DeFi in detail, shedding light on how they are transforming the financial landscape.
At Intelisync, we specialize in providing comprehensive DeFi development services tailored to meet the unique needs of our clients. From smart contract development to dApp creation and security audits, we ensure that your DeFi project is built with innovation, security, and scalability in mind. Trust Intelisync to guide you through the intricate landscape of decentralized finance and unlock the full potential of blockchain technology.
Ready to take your DeFi project to the next level? Partner with Intelisync for expert DeFi development services today!
Fueling AI with Great Data with Airbyte Webinar
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
HCL Notes and Domino License Cost Reduction in the World of DLAU
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
Building Production Ready Search Pipelines with Spark and Milvus
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
TrustArc Webinar - 2024 Global Privacy Survey
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
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- 1. Future NAV This will change
- 2. High tibial osteotomy Various techniques closing-wedge osteotomy acute opening-wedge osteotomy dome osteotomy hemicallotasis/progressive opening-wedge osteotomy NAV would improve the HTO
- 3. Hassleholm room 1 2 NAV suites Daily routine surgery
- 5. Toys for surgeons? CAOS
- 6. It will be there CAOS
- 7. It will improve and be simple CAOS
- 8. The CAOS technique is demanding and should be used only in specialized centers CAOS