Purpose: It is not known where the anatomical axis of rotation on the tibial side will be in kinematic alignment (KA), a rapidly expanding area of total knee arthroplasty (TKA) alignment technique today. The purpose of this study was to define the tibial axis for KA-TKA.
Methods: Fifty patients who underwent computed tomography (CT) examination of the lower extremities at a single institution were included. The posterior condylar axis (PCA) and surgical epicondylar axis (SEA) were identified in the CT axial view and projected onto the tibial slice. The respective perpendicular lines that pass through was attachment of the posterior cruciate ligament (PCL) were identified as the anatomic axis of rotation of the tibia relative to the PCA and SEA, and the position of each axis of rotation. Furthermore, the relationship of these perpendicular lines with the Akagi line was evaluated.
Results: The axis of tibial rotation to the SEA was similar to that of the Akagi line; the axis of tibial rotation to the PCA was located approximately 2.9° medial to the Akagi line, and when the origin of the tibial axis was set at the PCL attachment site, the intersection point of the tibial axis was approximately 2.5 mm medial to the medial border of the tibial tuberosity. The distribution of tibial axis had a wide range.
Conclusion: Although there is a large individual variation, the average tibial axis for KA-TKA is 2.9° more internally rotated than the Akagi line.
Level Of Evidence: Level IV.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11582684 | PMC |
| http://dx.doi.org/10.1002/jeo2.70087 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Reliable and streamlined model setup for digital twin assessment of fracture healing.
J Biomech
January 2025
Department of Mechanical Engineering & Mechanics, Lehigh University, 27 Memorial Drive West, Bethlehem, PA 18015, USA. Electronic address:
In large animal models of bone fracture repair, postmortem torsional testing is commonly used to assess healing biomechanics. Bending and axial tests are physiologically relevant, but much less commonly performed. Virtual torsional testing using image-based finite element models has been validated to postmortem bench tests, but its predictive value for capturing whole-bone mechanics and fracture healing quality under other physiologically relevant loading modes has not yet been established.
View Article and Find Full Text PDFSurgical treatment of congenital pseudarthrosis of the Tibia in children: CPAM-LRC consensus and guidelines.
Int J Surg
January 2025
Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Purpose: Congenital pseudarthrosis of the tibia (CPT) is a rare condition typically manifesting within the first decade of life. The primary objectives of surgical intervention for CPT include achieving long-term bony union of the tibia, preventing or minimizing limb length discrepancies (LLD), avoiding mechanical axis deviations of the tibia and adjacent joints, and preventing refracture. This study aims to conduct a systematic review of current treatment methods for CPT to determine the most effective non-surgical and surgical management strategies for pediatric patients with this condition.
View Article and Find Full Text PDFCorrelation of Increased Lateral Tibial Slope With Baseline Tibial Position in Intact Knees and Side-to-Side Anterior Tibial Translation for Knees With ACL Tears.
Am J Sports Med
January 2025
Twin Cities Orthopedics, Edina, Minnesota, USA.
Background: Anterior cruciate ligament (ACL) stress techniques-including single-leg stress radiographs, Telos, and KT-1000 arthrometer-are highly accessible and can provide additional diagnostic information to assess ACL and ACL graft integrity. The degree of anterior tibial translation (ATT) may be useful in guiding treatment when a diagnosis on magnetic resonance imaging is not conclusive or for judging if additional treatments, such as anterolateral complex augmentation, may be necessary.
Purpose/hypothesis: The purpose of this study was to evaluate the effect of increasing posterior tibial slope (PTS) on baseline tibial position (BTP) and side-to-side differences (SSD) in ATT.
A morphometric study of posterior tibial slope differences by sex and ethnicity in a South African population.
Surg Radiol Anat
January 2025
University of Pretoria, Pretoria, South Africa.
Purpose: Posterior tibial slope (PTS) influences knee kinetics and kinematics. The purpose of this study was to investigate morphology and variation within a sample of the black and white male and female population.
Method: 480 randomly selected lateral knee radiographs were included.
Medial Opening Wedge Osteotomy for Early Osteoarthritis of the Knee With Dr. Saigal's Plate: A Case Report With Review of Literature.
Cureus
December 2024
Department of Orthopaedics and Traumatology, All India Institute of Medical Sciences, Raipur, Raipur, IND.
Article Synopsis
- Knee pain often involves varus deformity and unicompartmental osteoarthritis, where high tibial valgus osteotomy (HTO) has emerged as an effective treatment option to delay joint replacement.
- A case report highlighted two patients with bilateral knee arthritis who underwent medial opening-wedge high tibial osteotomy using Dr. Saigal's plate, both achieving good range of motion and minimal complications post-surgery.
- Comprehensive evaluations, including radiological assessments and specific surgical techniques like the Miniaci Method, were employed to ensure successful outcomes, with both patients showing significant improvement after one year.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!