scholarly journals Morphometric study of upper end of tibia and its implications in total knee replacement

2021 ◽  
Vol 8 (3) ◽  
pp. 213-218
Author(s):  
Md. Jawed Akhtar ◽  
Raag Reeti ◽  
Binod Kumar ◽  
Rajiv Ranjan Sinha ◽  
Avanish Kumar
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Morphometric Parameters ◽  
Morphometric Study ◽  
Transverse Diameter ◽  
Lateral Condyle ◽  
Cross Sectional ◽  
Medial Condyle ◽  
Total Knee ◽  
The Right

: Knee deformities can be reliably assessed by using morphometric parameters of upper end of tibia. Total knee arthroplasties are done to treat many types of arthritis and injuries involving knee joint. So, there is a need to have data of various morphometric parameters of upper end of tibia in order to have better surgical outcomes. The present study was attempted to provide values of different parameters in the population of Bihar.: The present study was a cross-sectional and prospective study conducted on 50 tibia of unknown gender and age in the Department of Anatomy, Indira Gandhi Institute of Medical Sciences, Patna. Fully ossified, dried, macerated and thoroughly cleaned tibia were taken to measure different parameters of upper end with the help of digital vernier calliper. The data thus obtained were tabulated and analysed statistically using Microsoft excel software.: It was found that the diameters of medial condyle were more than the lateral condyle. The antero-posterior diameter was more than the transverse diameter in case of both the condyles. But the difference between the right and the left side was not statistically significant.: The present study will help in providing a baseline data for designing of the prosthesis used in total knee replacement surgeries. It will also be helpful to anthropologists and forensic experts.

scholarly journals One Stage Conversion of an Infected Fused Knee to Total Knee Replacement - A Surgical Challenge

2013 ◽  
Vol 7 (1) ◽  
pp. 67-71 ◽  
Author(s):  
Mukartihal Ravikumar ◽  
Daniel Kendoff ◽  
Mustafa Citak ◽  
Stefan Luck ◽  
Thorsten Gehrke ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Revision Arthroplasty ◽  
Preoperative Assessment ◽  
Stage Conversion ◽  
One Stage ◽  
Common Technique ◽  
Total Knee ◽  
The Right

Background and Purpose: Two-stage revision arthroplasty is a common technique for the treatment of infected total knee replacement. Few reports have addressed the conversion of a fused knee into a total knee replacement. However, there is no case reported of converting an infected fused knee into a hinge knee using a one-stage procedure. Methods: We report on a 51-year old male patient with an infected fused knee after multiple surgeries. Results and Interpretation: A one-stage conversion of septic fused knee into total knee arthroplasty by a rotational hinge prosthesis was performed. The case highlights that with profound preoperative assessment, meticulous surgical technique, combined antibiotic treatment and the right implant, one-stage revision in a surgical challenge may have a role as a treatment option with good functional outcome.

scholarly journals Morphometric Analysis of Superior Articular Surface of Tibia in Dry Cadaveric Bones

2019 ◽  
Vol 15 (4) ◽  
pp. 287-290
Author(s):  
Ruku Pandit ◽  
Nitasha Sharma
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Tibial Component ◽  
Articular Surface ◽  
Baseline Data ◽  
Lateral Condyle ◽  
Medial Condyle ◽  
Significant Difference ◽  
Total Knee ◽  
The Right

Background: Total knee arthroplasty is the most cost effective and rapidly evolving technique. The success of procedure relies on appropriate sizing of tibial component, for which elaborate information of various dimensions of upper surface of tibia is mandatory. Hence, this study is aiming to generate baseline data on antero-posterior and transverse measurements of medial and lateral condyles and intercondylar area of upper surface of tibia. Methods: The study was conducted in 42 dry human cadaveric tibia with unidentified age and sex, in the Department of Anatomy, College of Medical Sciences and Teaching Hospital, Chitwan. The antero-posterior and transverse measurements of medial and lateral condyles and intercondylar area of tibia were recorded in millimeter (mm) with digital Vernier calipers. The data was analysed using SPSS version 16.0. Results: The antero-posterior and transverse measurements of medial condyle of tibia were 43.00±5.95 mm and 25.21±8.08 mm respectively on the right side and 45.33±5.36 mm and 27.43±8.57 mm respectively on the left side and that of lateral condyle were 37.94±5.64 mm and 25.21±8.71 mm respectively on the right side and 41.03±3.65 mm and 27.06±8.83 mm respectively on the left side. The antero-posterior and transverse measurements of intercondylar area of tibia were 47.49±6.31 mm and 15.71±3.93 mm respectively on the right side and 49.24±6.91 mm and 15.02±3.88 mm respectively on the left side. The variation in the measurements between right and left tibia showed significant difference only for antero-posterior measurement of lateral condyle (p<0.05). Conclusions: The study generates baseline data regarding various anthropometric measurements of upper surface of tibia, which will assist the orthopedic surgeon to create a resected bony surface identical to the tibial component of an implant in unilateral and total knee arthroplasty. Keywords: measurement; morphometric; superior articular surface; tibial condyles.

scholarly journals Morphometric Analysis of Proximal End of the Tibia

2019 ◽  
Vol 08 (02) ◽  
pp. 082-086
Author(s):  
Nadia Ahmad ◽  
Deepa Singh ◽  
Aksh Dubey ◽  
S. L. Jethani
Keyword(s):  
Knee Arthroplasty ◽  
Knee Prosthesis ◽  
Knee Injuries ◽  
Morphometric Parameters ◽  
P Value ◽  
Lateral Condyle ◽  
Medial Condyle ◽  
Tibial Condyle ◽  
Knee Deformity ◽  
Total Knee

Abstract Background Total knee arthroplasty and unicompartmental knee arthroplasty are frequently done procedures for the treatment of various forms of arthritis and knee injuries. The knee prosthesis, which is used for these procedures, requires adequate sizing specific to the population. Morphometric parameters of upper end of the tibia can be used to guide treatment and monitor outcome of total knee replacement surgeries. Information regarding morphometry of upper end of the tibia is important as it provides reliable method of assessing knee deformity. This article assesses different morphometric parameters of condylar and intercondylar surface of the tibia and to compile the results, analyze, and formulate a baseline data for future studies with relevance to Indian population. Materials and Methods The study group comprised of 60 adult human dry and processed tibia of both sides which are grossly normal and complete, obtained from the Department of Anatomy, Himalayan Institute of Medical Sciences. Morphometric measurements of the medial condyle, lateral condyle, and intercondylar area of tibia were recorded with vernier calipers with a least count of 0.01 mm. The dimensions were summarized as mean ± standard deviation. A p-value of < 0.05 was considered significant. Result Mediolateral and anteroposterior length were 66.33 and 42.52 mm, respectively. Conclusion Anatomical profile of tibial condyle for Indians is smaller, hence highlighting the need for sizing of prosthesis specific to the population in question.

scholarly journals Metallic Discoloration on the Right Shin Caused by Titanium Alloy Prostheses in a Patient with Right Total Knee Replacement

2013 ◽  
Vol 25 (3) ◽  
pp. 356 ◽  
Author(s):  
Jeong Young Park ◽  
Dong Hoon Shin ◽  
Jong Soo Choi ◽  
Ki Hong Kim
Keyword(s):  
Titanium Alloy ◽  
Total Knee Replacement ◽  
Knee Replacement ◽  
Total Knee ◽  
The Right

Conceptual Design for Condylar Guiding Features of a Total Knee Replacement

2011 ◽  
Vol 5 (2) ◽  
Author(s):  
Shahram Amiri ◽  
T. Derek V. Cooke ◽  
Urs P. Wyss
Keyword(s):  
Total Knee Replacement ◽  
Conceptual Design ◽  
Knee Replacement ◽  
The Other ◽  
Lateral Condyle ◽  
Total Knee ◽  
Design Requirements ◽  
Replacement System ◽  
Flexion And Extension ◽  
Femoral Condyles

This study investigates the design requirements for guiding features that can be incorporated into the shapes of the femoral condyles and the tibial component geometry of a knee replacement system without occupying the intercondylar space of the joint so that the cruciates can be spared and still produce more physiological motions. A conceptual design for a surface-guided knee is introduced to induce effective guiding both in flexion and extension by novel features incorporated in the shape of the lateral condyle. This design can accommodate preservation of either of the cruciates while deficiencies in the functions of the other are compensated by contributions of the articular geometry in guiding the motion and stabilizing the joint. The preliminary kinematic tests on a prototype demonstrated viability of the features in guiding motion under compression.

scholarly journals Deep learning for large scale MRI-based morphological phenotyping of osteoarthritis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Nikan K. Namiri ◽  
Jinhee Lee ◽  
Bruno Astuto ◽  
Felix Liu ◽  
Rutwik Shah ◽  
...  
Keyword(s):  
Total Knee Replacement ◽  
Knee Replacement ◽  
Large Scale ◽  
Area Under The Curve ◽  
Inclusion Criteria ◽  
Cross Sectional ◽  
Osteoarthritis Initiative ◽  
Total Knee ◽  
Neural Network Classifiers ◽  
Insight Into

AbstractOsteoarthritis (OA) develops through heterogenous pathophysiologic pathways. As a result, no regulatory agency approved disease modifying OA drugs are available to date. Stratifying knees into MRI-based morphological phenotypes may provide insight into predicting future OA incidence, leading to improved inclusion criteria and efficacy of therapeutics. We trained convolutional neural networks to classify bone, meniscus/cartilage, inflammatory, and hypertrophy phenotypes in knee MRIs from participants in the Osteoarthritis Initiative (n = 4791). We investigated cross-sectional association between baseline morphological phenotypes and baseline structural OA (Kellgren Lawrence grade > 1) and symptomatic OA. Among participants without baseline OA, we evaluated association of baseline phenotypes with 48-month incidence of structural OA and symptomatic OA. The area under the curve of bone, meniscus/cartilage, inflammatory, and hypertrophy phenotype neural network classifiers was 0.89 ± 0.01, 0.93 ± 0.03, 0.96 ± 0.02, and 0.93 ± 0.02, respectively (mean ± standard deviation). Among those with no baseline OA, bone phenotype (OR: 2.99 (95%CI: 1.59–5.62)) and hypertrophy phenotype (OR: 5.80 (95%CI: 1.82–18.5)) each respectively increased odds of developing incident structural OA and symptomatic OA at 48 months. All phenotypes except meniscus/cartilage increased odds of undergoing total knee replacement within 96 months. Artificial intelligence can rapidly stratify knees into structural phenotypes associated with incident OA and total knee replacement, which may aid in stratifying patients for clinical trials of targeted therapeutics.

scholarly journals Fracture of the Femoral Component in TKR – A Case Report

2020 ◽  
pp. 1-3
Author(s):  
Alexander Schuh ◽  
Alexander Schuh ◽  
Alexander Scheller ◽  
Stefan Sesselmann ◽  
Wolfgang Hönle
Keyword(s):  
Case Report ◽  
Total Knee Replacement ◽  
Femoral Component ◽  
Case Reports ◽  
Rare Complication ◽  
Lateral Condyle ◽  
Fixed Bearing ◽  
Cementing Technique ◽  
Medial Condyle ◽  
Total Knee

Femoral component fracture in total knee replacement (TKR) is a rare complication. In the majority of case reports, stress fractures of the femoral component have predominantly affected the medial condyle, following uncemented implantation of fixed-bearing knees. We report the case of fracture of the lateral condyle of a cemented fixed TKR due to bad cementing technique.

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