Evaluation of the multiplex PCR combined with capillary electrophoresis technique for detecting pathogenic bacteria and antibiotic resistance genes in bone infections

Abstract Objective Orthopedic wound infection is a difficult problem in the clinic. Accurate and rapid microbiological test results are essential for case management, antibiotic therapy, and infection control. Methods We retrospectively evaluated 1285 specimens (puncture fluid, catheter, secretions,...

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Main Authors: Junye Liu, Yan Yu, Wei Feng, Zhihao He, Mengfei Wang, Weikun Hou, Yannan Zhao, Yi Liu, Yuzhu Yan, Heping Zhao
Format: Article
Language:English
Published: BMC 2025-04-01
Series:BMC Infectious Diseases
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Online Access:https://doi.org/10.1186/s12879-025-10847-0
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author Junye Liu
Yan Yu
Wei Feng
Zhihao He
Mengfei Wang
Weikun Hou
Yannan Zhao
Yi Liu
Yuzhu Yan
Heping Zhao
author_facet Junye Liu
Yan Yu
Wei Feng
Zhihao He
Mengfei Wang
Weikun Hou
Yannan Zhao
Yi Liu
Yuzhu Yan
Heping Zhao
author_sort Junye Liu
collection DOAJ
description Abstract Objective Orthopedic wound infection is a difficult problem in the clinic. Accurate and rapid microbiological test results are essential for case management, antibiotic therapy, and infection control. Methods We retrospectively evaluated 1285 specimens (puncture fluid, catheter, secretions, joint fluid, lavage fluid, extraction fluid, blood culture, drainage fluid, cerebrospinal fluid, bone, prosthesis tissue, etc.) from 739 patients who received orthopedic diagnosis and treatment, using routine conventional method (RCM)s as a reference method to evaluate the performance of multiplex PCR combined with capillary electrophoresis (mPCR-CE) for detecting pathogens and antibiotic resistance genes associated with bone infection. Results Among the 1285 samples analyzed, 1045 samples were consistent with the results of the RCM, with an agreement rate of 81.32%. Among the 155 inconsistent results, 13 (1.01%) were mPCR-CE negative but RCM positive, 142 (11.05%) was mPCR-CE positive but RCM negative. Compared with RCM, mPCR-CE demonstrated positive percentage and negative percentage agreement values of 65.37% and 98.35%, respectively. Moreover, the detection rate of multidrug-resistant bacteria by the mPCR-CE method was generally better than that by the RCM method. The detection rate of methicillin-resistant Staphylococcus aureus (MRSA) by the mPCR-CE method is relatively high. The traditional drug-sensitive culture method is more inclined to detect extended-spectrum β-lactamases (ESBLs). The mPCR-CE method has obvious advantages in terms of timeliness. Conclusion This study revealed that mPCR-CE is a new and effective diagnostic method that can significantly reduce the identification time of bacterial identification and drug resistance, and has the potential to improve the management of orthopedic infections.
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spelling doaj-art-dfdad95c9d67466ab30dc4a7f93820492025-08-20T01:53:23ZengBMCBMC Infectious Diseases1471-23342025-04-0125111410.1186/s12879-025-10847-0Evaluation of the multiplex PCR combined with capillary electrophoresis technique for detecting pathogenic bacteria and antibiotic resistance genes in bone infectionsJunye Liu0Yan Yu1Wei Feng2Zhihao He3Mengfei Wang4Weikun Hou5Yannan Zhao6Yi Liu7Yuzhu Yan8Heping Zhao9Department of Clinical Laboratory, Honghui Hospital, Xi’an Jiaotong UniversityDepartment of Clinical Laboratory, Honghui Hospital, Xi’an Jiaotong UniversityDepartment of Clinical Laboratory, Honghui Hospital, Xi’an Jiaotong UniversityDepartment of Clinical Laboratory, Honghui Hospital, Xi’an Jiaotong UniversityDepartment of Clinical Laboratory, Honghui Hospital, Xi’an Jiaotong UniversityDepartment of Bone and Joint Diseases, Honghui Hospital, Xi’an Jiaotong UniversityDepartment of Clinical Laboratory, Honghui Hospital, Xi’an Jiaotong UniversityDepartment of Clinical Laboratory, Honghui Hospital, Xi’an Jiaotong UniversityDepartment of Clinical Laboratory, Honghui Hospital, Xi’an Jiaotong UniversityDepartment of Clinical Laboratory, Honghui Hospital, Xi’an Jiaotong UniversityAbstract Objective Orthopedic wound infection is a difficult problem in the clinic. Accurate and rapid microbiological test results are essential for case management, antibiotic therapy, and infection control. Methods We retrospectively evaluated 1285 specimens (puncture fluid, catheter, secretions, joint fluid, lavage fluid, extraction fluid, blood culture, drainage fluid, cerebrospinal fluid, bone, prosthesis tissue, etc.) from 739 patients who received orthopedic diagnosis and treatment, using routine conventional method (RCM)s as a reference method to evaluate the performance of multiplex PCR combined with capillary electrophoresis (mPCR-CE) for detecting pathogens and antibiotic resistance genes associated with bone infection. Results Among the 1285 samples analyzed, 1045 samples were consistent with the results of the RCM, with an agreement rate of 81.32%. Among the 155 inconsistent results, 13 (1.01%) were mPCR-CE negative but RCM positive, 142 (11.05%) was mPCR-CE positive but RCM negative. Compared with RCM, mPCR-CE demonstrated positive percentage and negative percentage agreement values of 65.37% and 98.35%, respectively. Moreover, the detection rate of multidrug-resistant bacteria by the mPCR-CE method was generally better than that by the RCM method. The detection rate of methicillin-resistant Staphylococcus aureus (MRSA) by the mPCR-CE method is relatively high. The traditional drug-sensitive culture method is more inclined to detect extended-spectrum β-lactamases (ESBLs). The mPCR-CE method has obvious advantages in terms of timeliness. Conclusion This study revealed that mPCR-CE is a new and effective diagnostic method that can significantly reduce the identification time of bacterial identification and drug resistance, and has the potential to improve the management of orthopedic infections.https://doi.org/10.1186/s12879-025-10847-0Bone infectionsMultiplex PCR combined with capillary electrophoresisMultidrug-resistant organisms
spellingShingle Junye Liu
Yan Yu
Wei Feng
Zhihao He
Mengfei Wang
Weikun Hou
Yannan Zhao
Yi Liu
Yuzhu Yan
Heping Zhao
Evaluation of the multiplex PCR combined with capillary electrophoresis technique for detecting pathogenic bacteria and antibiotic resistance genes in bone infections
BMC Infectious Diseases
Bone infections
Multiplex PCR combined with capillary electrophoresis
Multidrug-resistant organisms
title Evaluation of the multiplex PCR combined with capillary electrophoresis technique for detecting pathogenic bacteria and antibiotic resistance genes in bone infections
title_full Evaluation of the multiplex PCR combined with capillary electrophoresis technique for detecting pathogenic bacteria and antibiotic resistance genes in bone infections
title_fullStr Evaluation of the multiplex PCR combined with capillary electrophoresis technique for detecting pathogenic bacteria and antibiotic resistance genes in bone infections
title_full_unstemmed Evaluation of the multiplex PCR combined with capillary electrophoresis technique for detecting pathogenic bacteria and antibiotic resistance genes in bone infections
title_short Evaluation of the multiplex PCR combined with capillary electrophoresis technique for detecting pathogenic bacteria and antibiotic resistance genes in bone infections
title_sort evaluation of the multiplex pcr combined with capillary electrophoresis technique for detecting pathogenic bacteria and antibiotic resistance genes in bone infections
topic Bone infections
Multiplex PCR combined with capillary electrophoresis
Multidrug-resistant organisms
url https://doi.org/10.1186/s12879-025-10847-0
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