Anterior femoral notching in total knee arthroplasty assisted with 3D printed patient-specific instrumentation: a cause analysis

Objective To find out the causes of anterior femoral notching in 3D printed patient-specific patient-specific instrumentation (PSI) assisted total knee arthroplasty (TKA). Methods A retrospective analysis was carried out on the consecutive cases undergoing PSI assisted TKA in the Peking University I...

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Main Authors: WANG Xiaohua, JI Xiaope, ZHANG Jixiao, YUAN Liang, SUN Bin
Format: Article
Language:zho
Published: Editorial Office of Journal of Army Medical University 2022-08-01
Series:陆军军医大学学报
Subjects:
Online Access:http://aammt.tmmu.edu.cn/Upload/rhtml/202112126.htm
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author WANG Xiaohua
JI Xiaope
ZHANG Jixiao
YUAN Liang
SUN Bin
author_facet WANG Xiaohua
JI Xiaope
ZHANG Jixiao
YUAN Liang
SUN Bin
author_sort WANG Xiaohua
collection DOAJ
description Objective To find out the causes of anterior femoral notching in 3D printed patient-specific patient-specific instrumentation (PSI) assisted total knee arthroplasty (TKA). Methods A retrospective analysis was carried out on the consecutive cases undergoing PSI assisted TKA in the Peking University International Hospital from January 2019 to September 2021. The clinical data of those having anterior femoral notching were collected. 3D CT scanning was performed on the knee joint after intraoperative osteotomy and the intraoperative bone fragments. Rapidform software (Version 2006) was used to reconstruct 3D images and to perform image registration and comparison analysis with the preoperatively planned 3D models. The anterior femoral notching depth was measured, and the differences in the thickness of bone fragments between preoperatively planned and intraoperative bone cutting in order to analyze the causes of the anterior femoral notching. Results A total of 86 consecutive cases (94 knees) were included and 17 cases (18/94, 19.1%) of them had anterior femoral notching. The causes of anterior femoral notching were summarized into 3 categories: abnormal position of the PSI (10 cases, 83.3%), intraoperative reduction of the femoral prosthesis size (2 cases, 16.7%), and overextension of the femoral prosthesis (1 case, 8.3%). Conclusion Abnormal femoral PSI position, intraoperative reduction of femoral prosthesis size, and preoperative femoral prosthesis overextension design are the main causes of anterior femoral notching after PSI assisted knee arthroplasty.
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spelling doaj.art-00067b1f437d45339905e5a0907249e72022-12-22T01:39:59ZzhoEditorial Office of Journal of Army Medical University陆军军医大学学报2097-09272022-08-0144151549155610.16016/j.2097-0927.202112126Anterior femoral notching in total knee arthroplasty assisted with 3D printed patient-specific instrumentation: a cause analysisWANG Xiaohua0JI Xiaope1ZHANG Jixiao2YUAN Liang3SUN Bin4 Department of Orthopedics, Peking University International Hospital, Beijing, 102206 Department of Orthopedics, Peking University International Hospital, Beijing, 102206Second Department of Orthopedics, Hengshui Eighth People's Hospital, Hengshui, Hebei Province, 253899, ChinaDepartment of Orthopedics, Peking University International Hospital, Beijing, 102206Department of Orthopedics, Peking University International Hospital, Beijing, 102206Objective To find out the causes of anterior femoral notching in 3D printed patient-specific patient-specific instrumentation (PSI) assisted total knee arthroplasty (TKA). Methods A retrospective analysis was carried out on the consecutive cases undergoing PSI assisted TKA in the Peking University International Hospital from January 2019 to September 2021. The clinical data of those having anterior femoral notching were collected. 3D CT scanning was performed on the knee joint after intraoperative osteotomy and the intraoperative bone fragments. Rapidform software (Version 2006) was used to reconstruct 3D images and to perform image registration and comparison analysis with the preoperatively planned 3D models. The anterior femoral notching depth was measured, and the differences in the thickness of bone fragments between preoperatively planned and intraoperative bone cutting in order to analyze the causes of the anterior femoral notching. Results A total of 86 consecutive cases (94 knees) were included and 17 cases (18/94, 19.1%) of them had anterior femoral notching. The causes of anterior femoral notching were summarized into 3 categories: abnormal position of the PSI (10 cases, 83.3%), intraoperative reduction of the femoral prosthesis size (2 cases, 16.7%), and overextension of the femoral prosthesis (1 case, 8.3%). Conclusion Abnormal femoral PSI position, intraoperative reduction of femoral prosthesis size, and preoperative femoral prosthesis overextension design are the main causes of anterior femoral notching after PSI assisted knee arthroplasty. http://aammt.tmmu.edu.cn/Upload/rhtml/202112126.htm3d printing technologypatient-specific instrumentation knee replacementanterior femoral notchingimagingthree-dimension
spellingShingle WANG Xiaohua
JI Xiaope
ZHANG Jixiao
YUAN Liang
SUN Bin
Anterior femoral notching in total knee arthroplasty assisted with 3D printed patient-specific instrumentation: a cause analysis
陆军军医大学学报
3d printing technology
patient-specific instrumentation knee replacement
anterior femoral notching
imaging
three-dimension
title Anterior femoral notching in total knee arthroplasty assisted with 3D printed patient-specific instrumentation: a cause analysis
title_full Anterior femoral notching in total knee arthroplasty assisted with 3D printed patient-specific instrumentation: a cause analysis
title_fullStr Anterior femoral notching in total knee arthroplasty assisted with 3D printed patient-specific instrumentation: a cause analysis
title_full_unstemmed Anterior femoral notching in total knee arthroplasty assisted with 3D printed patient-specific instrumentation: a cause analysis
title_short Anterior femoral notching in total knee arthroplasty assisted with 3D printed patient-specific instrumentation: a cause analysis
title_sort anterior femoral notching in total knee arthroplasty assisted with 3d printed patient specific instrumentation a cause analysis
topic 3d printing technology
patient-specific instrumentation knee replacement
anterior femoral notching
imaging
three-dimension
url http://aammt.tmmu.edu.cn/Upload/rhtml/202112126.htm
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