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Tibial stress fracture

Pengfei Ni, Hongquan Dong, Yiwei Wang, Qin Zhou, Mengmeng Xu, Yanning Qian, Jie Sun
BACKGROUND: Perioperative neurocognitive disorders (PND) occur frequently after surgery, especially in aged patients. Surgery-induced neuroinflammation and blood-brain barrier (BBB) dysfunction play a crucial role in the pathogenesis of PND. Interleukin-17A (IL-17A) increases after surgical stress and will be involved in BBB dysfunction. However, the effect of IL-17A on BBB function during PND remains poorly understood. METHODS: Male wild-type C57BL/6J mice (15 months old) received tibial fracture surgery and fixation to establish the PND model...
November 30, 2018: Journal of Neuroinflammation
Jasper Reenalda, Erik Maartens, Jaap H Buurke, Allison H Gruber
BACKGROUND: Tibial stress fractures are common running related injury and their etiology may include biomechanical factors like impact forces, shock attenuation, lower limb kinematics and how these factors are influenced by intense or prolonged running. Inertial-magnetic measurement units (IMUs) have recently emerged as an alternative to motion capture but their use to date was mostly limited to segmental and joint motion. RESEARCH QUESTION: The present study sought to examine the effects of a prolonged run on shock attenuation, peak tibial and sacral acceleration (PTA, PSA), and lower limb kinematics using IMUs...
November 19, 2018: Gait & Posture
Oren Tirosh, Nili Steinberg, Dan Nemet, Alon Eliakim, Guy Orland
BACKGROUND: Being overweight may increase the risk for developing stress fracture, as overweight adults and children were reported to have greater pressure peaks and rates under the heel during walking when compared with their normal-weight counterparts. Biofeedback gait retraining was shown to reduce ground impact magnitude in adults but not yet in children. RESEARCH QUESTION: The study examined whether overweight children have greater tibia peak positive acceleration (PPA) at ground impact during fast walking and running compared to healthy weight children, and whether visual feedback gait retraining program can be used to reduce PPA in overweight children...
November 11, 2018: Gait & Posture
(no author information available yet)
No abstract text is available yet for this article.
November 2018: Orthopaedic Nursing
Patrick Graham
No abstract text is available yet for this article.
November 2018: Orthopaedic Nursing
Masamichi Yokoyama, Yasuhiro Nakamura, Makoto Egusa, Hideyuki Doi, Toru Onishi, Koji Hirano, Motoyuki Doi
Background/objective: Unicompartmental knee arthroplasty (UKA) is a low-invasive knee surgery that enables early recovery. Stress fracture of the medial tibial plateau (MTP) is a complication of UKA that prolongs treatment once it has occurred. We investigated factors affecting its occurrence. Methods: The study subjects were 167 patients who underwent fixed-bearing UKA between 2009 and 2016 (45 men and 122 women of mean age 77 years, including 134 with osteoarthritis of the knee and 33 with spontaneous osteonecrosis)...
January 2019: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology
Dong Ren, Yueju Liu, Jian Lu, Runtao Xu, Pengcheng Wang
Biomechanical performance of a newly designed plate for treating posterolateral tibial plateau fractures was compared with three traditional internal fixation devices using finite element analysis (FEA) and biomechanical experiments. Forty synthetic tibias were used to create posterolateral shearing tibial fracture models, which were randomly assigned to groups A-D. The fragments were fixed with two 6.5-mm lag screws (group A), the newly designed plate (group B), a 3.5-mm lateral locking plate (group C), and a posterolateral buttress plate (group D)...
November 6, 2018: Scientific Reports
Zhong-Xin Liu, Wei Wang, Xin Zhang, Jun Yang
OBJECTIVE: To establish finite element models of anterior inferior tibiofibular syndesmosis injuries (AITSI), screw fixation and Tight-rope(TR) fixation, and to compare its force and displacement, so as provide evidence for clinical diagnosis and treatment. METHODS: A three-dimensional model of a healthy ankle complex was developed by computed tomography (CT) images, and anterior inferior tibiofibular syndesmosis injuries(AITSI) model also established, then a screw was inserted into AITSI model to obtain a screw fixation model, and a Tight-rope system was put into AITSI model to obtain a TR model...
October 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
Claudio Tinoco Mesquita, Gustavo do Vale Gomes
No abstract text is available yet for this article.
September 2018: Radiologia Brasileira
Mahmoud Jabalameli, Hossein A Hadi, Abolfazl Bagherifard, Mohammad Rahbar, Mohammadreza Minator Sajjadi
Background: Presentation of proximal tibia stress fracture is not infrequent among elderly patients due to their poor bone stock. Optimal management of patients with severe gonarthrosis of the knee and concurrent tibial stress fracture is not known yet. In this study we report the outcome of primary total knee arthroplasty (TKA) using stemmed components in elderly patients. Methods: Between 2009 and 2014, a total of 16 elderly patients with proximal tibial stress fractures and concurrent gonarthrosis were treated with TKA using long stemmed components...
September 2018: Archives of Bone and Joint Surgery
Rathin Maity, Santanu Majumder, Amit Roychowdhury, Subrata Saha
The goal of this finite element study is to reduce the stress shielding effect in tibial fracture fixation. Five different plates with modified geometry have been modeled. The fracture gap is assumed to be filled with callus, which is new born healing tissue. The effect of different plate modifications in four different healing stages has been compared to the nonmodified plate. It has been observed that all the modified models have higher callus stress than the nonmodified model, and the best modified plate has reduced the stress shielding effect by 117% for the first healing stage...
2018: Journal of Long-term Effects of Medical Implants
Omar M Albtoush, Marius Horger, Fabian Springer, Jan Fritz
The Segond fracture is a tibial avulsion injury of the insertion of the middle third of the lateral capsular ligament that is typically associated with anterior cruciate ligament and meniscal tears. The classically assigned mechanism of injury is a combination of internal rotation and varus stress. We report two cases of Segond fractures that presented with a variant pattern including osseous avulsion injuries of the medial collateral ligament at the femoral origin, anterior cruciate ligament tear, and pivot shift-type osseous contusion pattern, suggesting an alternative mechanism of injury that includes dominant valgus stress and external rotation components...
September 11, 2018: Clinical Imaging
Dale L Robinson, Hongyuan Jiang, Qichun Song, Christopher Yates, Peter Vee Sin Lee, John D Wark
Fracture risk assessment using dual-energy X-ray absorptiometry (DXA) frequently fails to diagnose osteoporosis amongst individuals who later experience fragility fractures. Hence, more reliable techniques that improve the prediction of fracture risk are needed. In this study, we evaluated a finite element (FE) modelling framework based on clinical peripheral quantitative computed tomography (pQCT) imaging of the tibial epiphysis and diaphysis to predict the stiffness at these locations in compression, shear, torsion and bending...
October 6, 2018: Biomechanics and Modeling in Mechanobiology
Philostratos Klidaras, Jacqueline Severt, Deborah Aggers, Jason Payne, Paul D Miller, Steven W Ing
Infants and children with hypophosphatasia (HPP) treated with asfotase alfa show improvement in bone mineralization and motor function, but it is unclear whether the medication can affect fracture healing in adult HPP patients. We present the course of fracture healing in two adults with HPP on enzyme replacement. Case 1 is a 41-year-old female with infantile-onset HPP who was wheelchair-bound due to a nonhealing tibial fragility fracture sustained 3 years before and also had nonhealing femoral pseudofracture sustained 17 years before starting asfotase alfa therapy in December 2015...
September 2018: JBMR Plus
Takumi Matsumoto, Song Ho Chang, Ryutaro Takeda, Sakae Tanaka, Takuo Juji
Adult-acquired flatfoot deformity is a progressive flattening of the arch of the foot that results from posterior tibial tendon insufficiency with a predilection for middle-aged women. A lateralized force vector associated with hindfoot valgus in adult-acquired flatfoot produces lateral ankle pain due to impingement at the lateral hindfoot, which can even lead to stress fractures of the distal fibula. Here, we present the rare case of a 73-year-old woman who presented with stress fractures of the bilateral taluses and unilateral distal fibula accompanied by severe adult-acquired flatfoot deformities...
2018: Case Reports in Orthopedics
Kelly R Sheerin, Duncan Reid, Thor F Besier
BACKGROUND: Impact loading in runners, assessed by the measurement of tibial acceleration, has attracted substantial research attention. Due to potential injury links, particularly tibial fatigue fractures, tibial acceleration is also used as a clinical monitoring metric. There are contributing factors and potential limitations that must be considered before widespread implementation. AIM: The objective of this review is to update current knowledge of the measurement of tibial acceleration in runners and to provide recommendations for those intending on using this measurement device in research or clinical practice...
January 2019: Gait & Posture
Nirav K Patel, Joanna Horstman, Victoria Kuester, Senthil Sambandam, Varatharaj Mounasamy
Tibial shaft fractures are one of the most common pediatric fractures. They require appropriate diagnosis and treatment to minimize complications and optimize outcomes. Diagnosis is clinical and radiological, which can be difficult in a young child or with minimal clinical findings. In addition to acute fracture, Toddler's and stress fractures are important entities. Child abuse must always be considered in a nonambulatory child presenting with an inconsistent history or suspicious concomitant injuries. Treatment is predominantly nonoperative with closed reduction and casting, requiring close clinical and radiological followup until union...
September 2018: Indian Journal of Orthopaedics
Anouk H van der Vossen, Mario Maas
A 23-year-old female athlete presented with progressive pain in her right lower leg since 3 months. Conventional radiography did not reveal a fracture. However, a CT-scan showed a proximal posteromedial tibial stress fracture, matching with the localisation of the pain.
August 16, 2018: Nederlands Tijdschrift Voor Geneeskunde
Jun Komatsu, Atsuhiko Mogami, Hideaki Iwase, Osamu Obayashi, Kazuo Kaneko
Posterior tibial stress fractures are more frequent than anterior tibial stress fractures, and they are considered to have a good prognosis for returning to sports; cases leading to a complete fracture are rare. A 17-year-old male involved in high school athletics middle-distance running had a 3-week history of pain with training. He was running up to 300 km/week on streets and cross-country in an even distribution. He had posterior tibial stress fractures, but despite the lower leg pain, he continued running...
September 7, 2018: Archives of Orthopaedic and Trauma Surgery
Yan Xiong, Xueliang Zhao, Hongyi Xiang, Yunjiao Wang, Zhikang Liao, Xiyan Zhu, Hui Zhao
Background and Objective: Knee joint collision injuries occur frequently in military and civilian scenarios, but there are few studies assessing longitudinal impacts on knee joints. In this study, the mechanical responses and damage characteristics of knee longitudinal collisions were investigated by finite element analysis and human knee impact tests. Materials and methods: Based on a biocollision test plateau, longitudinal impact experiments were performed on 4 human knee joints (2 in the left knee and 2 in the right knee) to measure the impact force and stress response of the bone...
2018: Applied Bionics and Biomechanics
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