Anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients

Background: Patellofemoral joint is considered as a complex joint involving articulation between the patella and femoral trochlea. Loss of patella articular cartilage occurs in patellofemoral arthritis that may require patella arthroplasty in Total Knee Arthroplasty (TKA). Proper patella implant s...

Full description

Saved in:

Bibliographic Details
Main Author:	Termizi, Nur Syahida Mohd
Format:	Thesis
Language:	English
Published:	2018
Subjects:	RC Internal medicine
Online Access:	http://eprints.usm.my/47235/1/Dr.%20Nur%20Syahida%20Mohd%20Termizi-24%20pages.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-usm-ep.47235
record_format	uketd_dc
spelling	my-usm-ep.472352022-01-26T02:11:11Z Anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients 2018 Termizi, Nur Syahida Mohd RC Internal medicine Background: Patellofemoral joint is considered as a complex joint involving articulation between the patella and femoral trochlea. Loss of patella articular cartilage occurs in patellofemoral arthritis that may require patella arthroplasty in Total Knee Arthroplasty (TKA). Proper patella implant sizing is important to prevent implant failure. However implants used for TKA in Asian patients mostly produced based on anthropometry of the Western population. We conducted this study to define intra-operative anatomy of patella dimensions in our populations and compare it with current prosthetic systems. Methods: This was a cross sectional study involving female patients who underwent Total Knee Arthroplasty in HUSM. Intra-operative anatomic measurements of 78 patellae with normal underlying bony structure were studied. Patella was measured using a surgical caliper which had sensitivity up to 0.5 mm. Patella dimensions that were measured including the patella height, width, thickness, medial and lateral articular facets width and thickness and patella circumference. Smallest implant size from 3 manufacturers were measured. Analysis using descriptive statistics was used to get the mean and median of anatomical patella dimensions, whereas Independent T test and One- Way ANOVA test were used to compare the female Malaysian patella dimensions with current prosthesis system sizing. Results: The articular surface of the patella was found to have an oval shape with a width-height ratio of 1.31. The mean patella thickness, width and height were 20.7 mm, 40.7 mm and 31.3 mm respectively. Only 17.9% fit for smallest implant size from all 3 companies while 57.6% did not fit for all implants. Oval-shape implant was suitable in 53.8% patients while another 46.2% were suitable for round-shape implant based on their width-height ratio. Conclusions: Our female patients have thinner and smaller patella which accommodate smaller patellar components than the Westerners. Therefore, the orthopaedic implant manufacturers have to consider optimizing the thicknesses as well as widths of their patellar prostheses. 2018 Thesis http://eprints.usm.my/47235/ http://eprints.usm.my/47235/1/Dr.%20Nur%20Syahida%20Mohd%20Termizi-24%20pages.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Perubatan
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	RC Internal medicine
spellingShingle	RC Internal medicine Termizi, Nur Syahida Mohd Anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients
description	Background: Patellofemoral joint is considered as a complex joint involving articulation between the patella and femoral trochlea. Loss of patella articular cartilage occurs in patellofemoral arthritis that may require patella arthroplasty in Total Knee Arthroplasty (TKA). Proper patella implant sizing is important to prevent implant failure. However implants used for TKA in Asian patients mostly produced based on anthropometry of the Western population. We conducted this study to define intra-operative anatomy of patella dimensions in our populations and compare it with current prosthetic systems. Methods: This was a cross sectional study involving female patients who underwent Total Knee Arthroplasty in HUSM. Intra-operative anatomic measurements of 78 patellae with normal underlying bony structure were studied. Patella was measured using a surgical caliper which had sensitivity up to 0.5 mm. Patella dimensions that were measured including the patella height, width, thickness, medial and lateral articular facets width and thickness and patella circumference. Smallest implant size from 3 manufacturers were measured. Analysis using descriptive statistics was used to get the mean and median of anatomical patella dimensions, whereas Independent T test and One- Way ANOVA test were used to compare the female Malaysian patella dimensions with current prosthesis system sizing. Results: The articular surface of the patella was found to have an oval shape with a width-height ratio of 1.31. The mean patella thickness, width and height were 20.7 mm, 40.7 mm and 31.3 mm respectively. Only 17.9% fit for smallest implant size from all 3 companies while 57.6% did not fit for all implants. Oval-shape implant was suitable in 53.8% patients while another 46.2% were suitable for round-shape implant based on their width-height ratio. Conclusions: Our female patients have thinner and smaller patella which accommodate smaller patellar components than the Westerners. Therefore, the orthopaedic implant manufacturers have to consider optimizing the thicknesses as well as widths of their patellar prostheses.
format	Thesis
qualification_level	Master's degree
author	Termizi, Nur Syahida Mohd
author_facet	Termizi, Nur Syahida Mohd
author_sort	Termizi, Nur Syahida Mohd
title	Anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients
title_short	Anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients
title_full	Anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients
title_fullStr	Anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients
title_full_unstemmed	Anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients
title_sort	anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Perubatan
publishDate	2018
url	http://eprints.usm.my/47235/1/Dr.%20Nur%20Syahida%20Mohd%20Termizi-24%20pages.pdf
_version_	1747821755968258048

Anthropometric intraoperative measurement of the patella dimensions in total knee arthroplasty of female patients

Similar Items