Related Experiment Video
Updated: Jun 26, 2025
An Intramedullary Locking Nail for Standardized Fixation of Femur Osteotomies to Analyze Normal and Defective Bone Healing in Mice
Published on: November 13, 2016
Factors which can influence elastic stable intramedullary nailing removal in healed bone cysts in children
1Orthopedics Department, Children's Hospital of Chongqing Medical University; Chongqing Key Laboratory of Pediatrics, Ministry of Education Key Laboratory of Child Development and Disorders; National Clinical Research Center for Child Health and Disorders; China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Jiangxi Hospital Affiliated Children's Hospital of Chongqing Medical University, Zhongshan 2Road 136#, Yuzhong District, Chongqing, 400014, People's Republic of China.
Insights
Removing elastic stable intramedullary nails (ESIN) in children with healed bone cysts can be difficult. Factors like older age, longer implant time, bone grafting, and shorter nail protrusion increase removal challenges.
Area of Science:
- Orthopedic surgery
- Pediatric orthopedics
- Biomaterials and implants
Background:
- Elastic stable intramedullary nailing (ESIN) is a common treatment for pediatric bone cysts with pathological fractures.
- Difficulty in removing ESINs after healing is a significant clinical complication.
- Understanding factors influencing ESIN removal is crucial for improving patient outcomes.
Purpose of the Study:
- To identify clinical factors associated with difficulty in removing ESINs in children with healed bone cysts.
- To provide data to help surgeons anticipate and manage ESIN removal challenges.
Main Methods:
- Retrospective analysis of clinical data from 49 children undergoing ESIN removal for bone cysts.
- Data collected included age, sex, fracture site, bone grafting, number of ESINs, indwelling time, and extraosseous length.
- Univariate and multivariate logistic regression analyses were performed to identify influencing factors.
Main Results:
- The overall difficulty rate for ESIN extraction was 44.90%.
- Univariate analysis indicated age, ESIN indwelling time, bone grafting, and extraosseous length were potential factors (P < 0.05).
- Multivariate analysis identified ESIN indwelling time as the independent factor influencing removal difficulty (P < 0.05).
Conclusions:
- Factors influencing difficult ESIN removal include age over 11.79 years, indwelling time over 10.5 months, presence of bone graft, and short extraosseous length (≤ 0.405 cm).
- These factors should be considered by surgeons when planning ESIN removal in pediatric patients.
- Further research may explore strategies to mitigate these removal difficulties.
Abstract:
Elastic stable intramedullary nailing (ESIN) internal fixation is used clinically to treat pathological fractures of bone cysts in children. However, one of the most important complications was removal difficulty. In this study, we aim to analyse the factors which can influence ESIN removal in healed bone cysts in children. From April 2014 to November 2020, the clinical data of 49 children who underwent elastic stable intramedullary nail removal for pathological fractures of the bone cysts in our hospital were retrospectively analysed. The following data, including age, sex, pathological fracture site, with bone graft, number of ESINs, ESIN indwelling time, and extraosseous length of ESIN were collected, and univariate analysis and logistic regression analysis was performed. The frequency of difficulty in ESIN extraction was 44.90% (22/49). The univariate logistic regression analysis showed that age,ESIN indwelling time,with bone garft and extraosseous length of ESIN may be correlated with the difficulty in removing ESIN (P < 0.05), while sex, pathological fracture site, number of ESIN may not be correlated with the difficulty in removing ESIN (P > 0.05).The multivariate logistic regression analysis showed that the ESIN indwelling time was the independent influencing factor for difficulty in removing ESIN (P < 0.05). The factors influencing the ESIN removal in healed bone cysts in children include over 11.79 years old, the long indwelling time of the ESIN(over 10.5 months),with bone graft and short extraosseous length of ESIN(≤ 0.405 cm). These factors influencing ESIN removal in healed bone cysts in children should be considered.
More Related Videos
07:35Creating Rigidly Stabilized Fractures for Assessing Intramembranous Ossification, Distraction Osteogenesis, or Healing of Critical Sized Defects
Published on: April 11, 2012
10:09Adjustable Stiffness, External Fixator for the Rat Femur Osteotomy and Segmental Bone Defect Models
Published on: October 9, 2014
Related Concept Videos
01:27Fractures: Bone Repair
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
01:40Bone Remodeling