Morphological Measurements of Knee Joints in Indian Population: Comparison to Current Knee Prostheses

Shah, Darshan; Ghyar, Rupesh; Ravi, B.; Hegde, Chintan; Shetty, Vijay

doi:10.4236/ojra.2014.42012

Cited by 22 publications

(12 citation statements)

References 15 publications

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“…Thus our results suggest that Western implants may not be suitable for Indian patients. The limitation of this study was that we measured the unresected sizes of 3D reconstructed knee, but our results were similar to other Indian study [10] . Also it was short term single institutional study, with smaller sample size.…”

Section: Discussionsupporting

confidence: 74%

“…Data of Indian knee morphometry of healthy and non osteoarthritic knee was lacking [10] . We studied the knee morphometry of Indian healthy and non osteoarthritic knee.…”

Section: Discussionmentioning

confidence: 99%

“…Data of Indian knee morphometry of healthy and non-osteoarthritic knee was lacking [10] . Objective of this study was to study the knee anthropometry of Indian population and its comparison with other ethnic groups and current TKA Implants.…”

Section: Introductionmentioning

confidence: 99%

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Computer tomography 3D reconstruction based study of knee anthropometry of Indian population: Comparison with other ethnic groups and current TKA implants

Agrawal¹,

Dalei²,

Reddy³

2017

Int. J. Orthop. Sci.

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Introduction: Most of the implants used for total knee arthroplasty in Asian patients have been produced based on anthropometry of Western people. Anthropometric studies have shown that there are significant variations in knee morphology between the Asian and Western population. Data of Indian knee morphometry of healthy and non osteoarthritic knee was lacking. Objective of this study was to study the knee anthropometry of Indian population and its comparison with other ethnic groups and current TKA Implants. Materials and Methods: 60 patients, 29 female and 31 male with peri-articlar knee injuries from the period of June 2016 to November 2016 were studied. 3D reconstruction of normal knee of the patients undergoing CT scan for injured knee was done. Measurement of the mediolateral width, anteroposterior width and aspect ratio of distal femur and proximal tibia was done. Data was compared with other ethnic groups and currently available and commonly used knee systems. Results: Indian females were found to have significantly (p>0.01) smaller dimensions of femur and tibia than Indian males and both had smaller aspect ratios than the Western population. Also study suggests that there is a morphological mismatch between commonly used implants and Indian knees. Conclusion: Our study suggests that why Western implant mismatches when implanted in Indian patients. Also this study provides definite rationale for designing total knee prosthesis, especially a gender-specific design suitable for the Indian population.

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Section: Discussionsupporting

confidence: 74%

“…Data of Indian knee morphometry of healthy and non osteoarthritic knee was lacking [10] . We studied the knee morphometry of Indian healthy and non osteoarthritic knee.…”

Section: Discussionmentioning

confidence: 99%

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Computer tomography 3D reconstruction based study of knee anthropometry of Indian population: Comparison with other ethnic groups and current TKA implants

Agrawal¹,

Dalei²,

Reddy³

2017

Int. J. Orthop. Sci.

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“…The current TKA implants available are designed based on morphometric measurements obtained from a Western/Caucasian population. As many other studies but few in India 1 2 show the risk of component oversizing is more common in Asians, as they are of smaller built and stature. 3 4 5 This study looks into the intraoperative measurements of distal femoral dimensions of patients undergoing TKA in our institute, the ML mismatch, gender variations, correlation of ML mismatch with gender, and the type of implant used.…”

Section: Introductionmentioning

confidence: 79%

Patient - implant dimension mismatch in total knee arthroplasty: Is it worth worrying? An Indian scenario

Thilak

George

2016

IJOO

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Background:The correct sizing of the components in both anteroposterior and mediolateral (ML) dimensions is crucial for the success of a total knee arthroplasty (TKA). The size of the implants selected is based on the intraoperative measurements. The currently used TKA implants available to us are based on morphometric measurements obtained from a Western/Caucasian population. Hence, the risk of component ML mismatch is more common in Asian sub-population, as they are of a smaller built and stature. This study aims to look into the following aspects agnitude of the ML mismatch between the femoral component and the patient's anatomical dimension, evaluation of gender variations in distal femur dimensions, and gender-wise and implant-wise correlation of ML mismatch.Materials and Methods:Intraoperatively, the distal femoral dimensions were measured using sterile calipers after removing the osteophytes and compared with the ML dimension of the implant used. ML mismatch length thus obtained is correlated with the various parameters.Results:Males showed larger distal femoral dimensions when compared to females. Males had larger ML mismatch. None of the implants used perfectly matched the patient's anatomical dimensions. Patients with larger mismatch had lower scorings at 2 years postoperative followup.Conclusion:Implant manufacturers need to design more options of femoral implants for a better fit in our subset of patients. The exact magnitude of mismatch which can cause functional implications need to be made out. The mismatch being one of the important factors for the success of the surgery, we should focus more on this aspect.

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“…Most of the existing TKA implants are designed to suit the knee anatomy of the Western population. Studies have shown that there are striking variations in knee morphology between Western and Asian populations [ 13 ]. The implants for arthroplasty and surgical fixation in fractured patella can be customized according to the morphometry.…”

Section: Discussionmentioning

confidence: 99%

Morphometric Analysis of Dry Human Patella and Patellar Facets

Taj¹,

Raghunath²,

Gurusamy³

et al. 2022

Cureus

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BackgroundThe patella is also known as the kneecap. It lies in front of the knee joint and protects the joint from damage. It is the largest sesamoid bone in the body and is embedded within the quadriceps tendon. The morphometry of the patella is crucial in forensic analysis, designing of implants, and subsequent reconstruction procedures in the knee as it is a sesamoid bone, without periosteum, whereby the natural healing process becomes difficult. The dimensions of the implant are very crucial for a successful knee replacement procedure. This study aims to provide a comprehensive morphometric analysis of the patella and further compare the same between right and left-sided patella specimens. MethodologyIn total, 50 dry patella specimens, with 26 left-sided specimens and 24 right-sided specimens, were obtained for the study from the Department of Anatomy, Saveetha Medical College, Chennai. The parameters analyzed in the study included height, width, the thickness of the patella, length and width of the articular facets on medial and lateral aspects, and central ridge length. ResultsThe morphometric analysis showed the mean height, width, and thickness of patella specimens were 4.07 cm, 4.12 cm, and 2.03 cm, respectively. The dimensions of the articular facet on the lateral aspect were found to show statistical variation compared to the dimensions of the medial articular facet, where p-values of <0.05 were taken as statistically significant. Based on Koyunco's Classification, 92% of patella specimens were of Type B. ConclusionsThe morphometric analysis of the patella in this study can be helpful in designing implants for reconstruction and for treating orthopedics in patellar reconstruction and fixation procedures.

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Morphological Measurements of Knee Joints in Indian Population: Comparison to Current Knee Prostheses

Cited by 22 publications

References 15 publications

Computer tomography 3D reconstruction based study of knee anthropometry of Indian population: Comparison with other ethnic groups and current TKA implants

Computer tomography 3D reconstruction based study of knee anthropometry of Indian population: Comparison with other ethnic groups and current TKA implants

Patient - implant dimension mismatch in total knee arthroplasty: Is it worth worrying? An Indian scenario

Morphometric Analysis of Dry Human Patella and Patellar Facets

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