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https://www.readbyqxmd.com/read/29785224/pseudarthrosis-of-the-calcaneus-advantages-of-regenerative-medicine-in-the-management-of-a-rare-entity-a-case-report-and-review-of-literature
#1
Bouaziz Wajdi, Mohamed Ali Rebai, Walid Baya, Nabil Krid, Wassim Zribi, Hassib Keskes
Background: The follow-up of calcaneal fractures has shown that they are difficult to manage and lead to multiple complications such as malunion and subtalar osteoarthritis. Pseudarthrosis of the calcaneus is an extremely rare complication, which was described in the literature through case reports.In the existing literature, only seven studies, including thirteen patients have reported the nonunion. However, to the best of our knowledge, no study elucidates the role of new techniques of regenerative medicine such as Bone Marrow Concentrates (BMC) or Platelet Rich Plasma (PRP) in the management...
2018: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29784532/short-term-results-of-flexor-hallucis-longus-transfer-in-delayed-and-neglected-achilles-tendon-repair
#2
Hamza Ozer, Yilmaz Ergisi, Gulcan Harput, Mehmet S Senol, Gul Baltaci
Flexor hallucis longus (FHL) tendon transfer to the calcaneus in the repair of delayed or neglected Achilles tendon (AT) injuries is a viable and dynamic option. Nineteen patients (18 males, 1 female; mean age 47.4 ± 12.4, range 24 to 74, years; body mass index 27.5 ± 4.5, range 23.2 to 38.9, kg/m2 ; interval from injury to surgery 40.8 ± 11.6, range 28 to 60, days) with delayed or neglected repair of AT rupture were included in the present study. FHL transfer to the calcaneus through a single incision and repair of the defect with native tendon lengthening or a tendinous turndown flap was performed...
May 18, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29767832/cancer-survivors-exhibit-a-different-relationship-between-muscle-strength-and-health-related-quality-of-life-fatigue-compared-to-healthy-subjects
#3
S Morishita, A Tsubaki, J B Fu, Y Mitobe, H Onishi, T Tsuji
We investigated the difference in relationship between muscle strength and quality of life (QOL)/fatigue in long-term cancer survivors and healthy subjects. Thirty-six cancer survivors and 29 healthy subjects were assessed for body composition and bone status at the calcaneus using the Osteo Sono Assessment Index. Muscle strength was evaluated via handgrip and knee extensor strength. Health-related QOL was assessed using the Medical Outcome Study 36-item Short-Form Health Survey. Fatigue was measured using the brief fatigue inventory...
May 16, 2018: European Journal of Cancer Care
https://www.readbyqxmd.com/read/29766742/wound-and-sural-nerve-complications-of-the-sinus-tarsi-approach-for-calcaneus-fractures
#4
Shaoliang Li
Background The purpose of this study was to evaluate the optimal timing and measures of the sinus tarsi approach for calcaneus fractures to avoid iatrogenic injury of the sural nerve and to assess for wound complications. METHODS: A case series of 53 patients with calcaneus fractures treated by a single surgeon with the sinus tarsi approach was retrospectively analyzed. On the basis of the delay time from injury to surgery, patients were classified into 4 groups: immediate (0-3 days), early (4-6 days), intermediate (7-14 days), and late (14-18 days)...
May 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29760787/inverted-rearfoot-posture-in-subjects-with-coexisting-patellofemoral-osteoarthritis-in-medial-knee-osteoarthritis-an-exploratory-study
#5
Hirotaka Iijima, Hiroshi Ohi, Naoto Fukutani, Tomoki Aoyama, Eishi Kaneda, Kaoru Abe, Masaki Takahashi, Shuichi Matsuda
Background: While abnormal rearfoot posture and its relationship to patellofemoral (PF) pain has been thoroughly discussed in the literature, its relationship to patellofemoral osteoarthritis (PFOA) has not been determined. This study aimed to examine whether rearfoot posture is associated with a higher prevalence of radiographic PFOA in a compartment-specific manner in patients with medial tibiofemoral osteoarthritis (TFOA). Methods: Participants from orthopedic clinics ( n  = 68, age 56-90 years, 75...
2018: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29743072/usefulness-of-circuit-training-at-home-for-improving-bone-mass-and-muscle-mass-while-losing-fat-mass-in-undergraduate-female-students
#6
Yoko Takahata
BACKGROUND: The purpose of this study was to determine whether or not circuit training at home affects the calcaneus quantitative ultrasound status as well as other indices of body composition among undergraduate female students. METHODS: Forty-one adolescents were recruited (18.5 ± 0.6 years old). The stiffness index of the calcaneus, broadband ultrasound attenuation of the calcaneus, speed of sound of the calcaneus, and body frame index. This was a three-month intervention study, so the measurements were conducted at baseline, 2 months later, and 3 months later while the subjects underwent circuit training at home...
May 9, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29724536/ankle-and-foot-power-in-gait-analysis-implications-for-science-technology-and-clinical-assessment
#7
REVIEW
Karl E Zelik, Eric C Honert
In human gait analysis studies, the entire foot is typically modeled as a single rigid-body segment; however, this neglects power generated/absorbed within the foot. Here we show how treating the entire foot as a rigid body can lead to misunderstandings related to (biological and prosthetic) foot function, and distort our understanding of ankle and muscle-tendon dynamics. We overview various (unconventional) inverse dynamics methods for estimating foot power, partitioning ankle vs. foot contributions, and computing combined anklefoot power...
April 18, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29723650/calcaneus-range-of-motion-underestimated-by-markers-on-running-shoe-heel
#8
Ryan S Alcantara, Matthieu B Trudeau, Eric S Rohr
BACKGROUND: The measurement of rearfoot kinematics by placing reflective markers on the shoe heel assumes its motion is identical to the foot's motion. Studies have compared foot and shoe kinematics during running but with conflicting results. The primary purpose of this study was to compare shoe and calcaneus three-dimensional range of motion during running. A secondary purpose was to determine the effect of a less rigid heel counter on tibia motion. RESEARCH QUESTION: Do markers placed on the shoe heel accurately represent calcaneus kinematics during running? METHODS: Three-dimensional coordinate data were collected on 14 subjects (M/F: 9/5) who ran on an instrumented treadmill at 3...
April 25, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29716591/the-primary-stability-of-different-implants-for-intra-articular-calcaneal-fractures-an-in-vitro-study
#9
Ming Ni, Jiong Mei, Kun Li, Wenxin Niu, Ming Zhang
BACKGROUND: Calcaneal fractures account for around 2% of all fractures and most of them are intra-articular fractures. Many implants have been used in the fixation of calcaneal fractures, but their biomechanical stability has not yet been well investigated. The aim of this study was to compare the primary stability of four fixations of calcaneal fracture. METHODS: Eight cadaveric calcaneus samples were used to simulate the Sanders' types III fracture pattern and fixed through four different implants, namely, K-wires, cannulated screws (CS), absorbable screws (AS), and plate-screw system (PSS)...
May 2, 2018: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29713385/a-minimal-markerset-for-three-dimensional-foot-function-assessment-measuring-navicular-drop-and-drift-under-dynamic-conditions
#10
Patric Eichelberger, Angela Blasimann, Nicole Lutz, Fabian Krause, Heiner Baur
Background: The validity of predicting foot pronation occurring mainly at the midfoot by surrogate measures from the rearfoot, like eversion excursion, is limited. The dynamic navicular mobility in terms of vertical navicular drop ( dNDrop ) and medial navicular drift ( dNDrift ) may be regarded as meaningful clinical indicators to represent overall foot function. This study aimed to develop a minimal approach to measure the two parameters and to examine their intra- and interday reliability during walking...
2018: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29703456/risk-factors-for-removal-of-calcaneus-screws-a-retrospective-study
#11
Mathieu Angers-Goulet, Philippe Beauchamp-Chalifour, Nathalie Laflamme, Marc Bouchard, Mélissa Laflamme
Although techniques using calcaneus screws have shown high union rates, posterior heel pain due to prominent hardware at the posterior and plantar aspect of the calcaneal tuberosity seems to be a significant complaint that often leads to hardware removal. The purpose of the present study was to identify the clinical and radiologic risk factors associated with calcaneus screw removal. A retrospective study of adult patients who required calcaneus screw fixation from January 2008 to December 2016 was conducted...
April 24, 2018: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29699030/-levels-of-calcaneus-bone-mineral-density-in-adults-from-10-regions-of-china
#12
Y J Qiao, X Li, M Wu, C Q Yu, Y Guo, Z Bian, Y L Tan, P Pei, J S Chen, Z M Chen, J Lyu, L M Li
Objective: To describe the regional and population-related differences in calcaneus bone mineral density (BMD) across ten regions of China. Methods: Based on the results: from the second Re-survey of China Kadoorie Biobank project, in which 5% of the surviving participants were interviewed during 2013-2014 and 24 677 participants aged 38-87 years were included in the study. We excluded those people with missing data for BMD and important variables. Calcaneus BMD was measured using the quantitative ultrasound bone densitometer...
April 10, 2018: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/29697440/three-dimensionally-printed-personalized-implant-design-and-reconstructive-surgery-for-a-bone-tumor-of-the-calcaneus-a-case-report
#13
Jong Woong Park, Hyun Guy Kang, Kwun Mook Lim, June Hyuk Kim, Han Soo Kim
CASE: A 23-year-old soldier was diagnosed with a calcaneal desmoplastic fibroma. Limb-salvage surgery using a 3-dimensionally (3D) printed personalized implant made from a titanium alloy was planned. The implant had a mesh-style surface for free tendon suture, and the joint surface was smooth to preserve the subtalar joint. The implant had 3 hollow posts in case of future transarticular immobilization. At the last follow-up, the implant was painless and stable, and the patient could walk normally without support...
April 25, 2018: JBJS Case Connector
https://www.readbyqxmd.com/read/29679256/biomechanical-features-of-six-design-of-the-delta-external-fixator-for-treating-pilon-fracture-a-finite-element-study
#14
Muhammad Hanif Ramlee, Mohd Ayub Sulong, Evelyn Garcia-Nieto, Daniel Angure Penaranda, Antonio Ros Felip, Mohammed Rafiq Abdul Kadir
Pilon fractures can be caused by high-energy vertical forces which may result in long-term patient immobilization. Many experts in orthopedic surgery recommend the use of a Delta external fixator for type III Pilon fracture treatment. This device can promote immediate healing of fractured bone, minimizing the rate of complications as well as allowing early mobilization. The characteristics of different types of the Delta frame have not been demonstrated yet. By using the finite element method, this study was conducted to determine the biomechanical characteristics of six different configurations (Model 1 until Model 6)...
April 21, 2018: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29666996/comparison-of-t2-relaxation-values-in-subtalar-cartilage-between-patients-with-lateral-instability-of-the-ankle-joint-and-healthy-volunteers
#15
Hyun Su Kim, Young Cheol Yoon, Ki Sun Sung, Min-Ji Kim, Soohyun Ahn
PURPOSE: To evaluate the difference between T2 relaxation values of the subtalar cartilage in lateral ankle instability patients and healthy volunteers. MATERIALS AND METHODS: This institutional review board-approved study included 27 preoperative magnetic resonance imaging (MRI) examinations of 26 patients who underwent Broström operations. Data of previously enrolled healthy volunteers (12 volunteers, 13 MRIs) were used as controls. Two radiologists independently measured T2 values in eight posterior subtalar joint cartilage compartments: central calcaneus anterior (CCA) and posterior (CCP), central talus anterior (CTA) and posterior (CTP), lateral calcaneus anterior (LCA) and posterior (LCP), and lateral talus anterior (LTA) and posterior (LTP)...
April 17, 2018: European Radiology
https://www.readbyqxmd.com/read/29658301/avoiding-pitfalls-of-tibiotalocalcaneal-nail-malposition-with-internal-rotation-axial-heel-view
#16
Ryan Callahan, Paul Juliano, Umur Aydogan, Justin Clayton
BACKGROUND: Tibiotalocalcaneal (TTC) nails are often used for complex hind foot arthrodesis and deformity correction. The natural valgus alignment of the hindfoot creates a challenge to optimum placement of the guidewire and eventual nail with a straight or valgus-curved nail. METHODS: Five fresh frozen cadavers were used for placement of a TTC guidewire with standard anterior-posterior (AP), lateral, and Harris axial heel views as a reference for proper placement...
April 1, 2018: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29652192/achilles-pullout-strength-after-open-calcaneoplasty-for-haglund-syndrome
#17
Glenn Pfeffer, Tyler Gonzalez, Matthew Zapf, Trevor J Nelson, Melodie F Metzger
BACKGROUND: Haglund syndrome involves a prominent posterior superior prominence of the calcaneus. If nonoperative management fails, operative management with calcaneoplasty is often needed. No study has assessed Achilles tendon pullout strength after an open calcaneoplasty for Haglund syndrome. The purpose of this study was to investigate those changes in a cadaveric model and provide objective data upon which to base postoperative recovery. METHODS: Seven matched pairs of cadaveric specimens (mid-tibia to toes) were divided into 2 cohorts: (1) intact/untreated and (2) open resection...
April 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29644087/clinical-observation-of-biomimetic-mineralized-collagen-artificial-bone-putty-for-bone-reconstruction-of-calcaneus-fracture
#18
Yong-Xiong Pan, Guang-Gang Yang, Zhong-Wan Li, Zhong-Min Shi, Zhan-Dong Sun
This study investigated clinical outcomes of biomimetic mineralized collagen artificial bone putty for bone reconstruction in the treatment of calcaneus fracture. Sixty cases of calcaneal fractures surgically treated with open reduction and internal fixation in our hospital from June 2014-2015 were chosen and randomly divided into two groups, including 30 cases treated with biomimetic mineralized collagen artificial bone putty as treatment group, and 30 cases treated with autogenous ilia as control group. The average follow-up time was 17...
March 2018: Regenerative Biomaterials
https://www.readbyqxmd.com/read/29616845/lateralizing-calcaneal-osteotomies-and-their-effect-on-calcaneal-alignment-a-three-dimensional-digital-model-analysis
#19
Elizabeth A Cody, Andrew P Kraszewski, Matthew S Conti, Scott J Ellis
BACKGROUND: Few authors have directly compared multiple types of lateralizing calcaneal osteotomies (LCOs) in terms of their ability to achieve deformity correction. The aim of this research was to use a digital model of a varus hindfoot to compare 4 different LCOs in terms of deformity correction and amount of tuberosity lateralization required. The authors hypothesis was that osteotomies involving a wedge resection would achieve greater correction with less lateralization. METHODS: A weightbearing computed tomographic scan of a patient with a varus hindfoot deformity was used to construct a 3-dimensional digital model of the hindfoot, preserving weightbearing alignment...
April 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29595648/clinical-application-of-the-sinus-tarsi-approach-in-the-treatment-of-intra-articular-calcaneal-fracture
#20
Qingting Meng, Qingxian Wang, Xirui Wu, Aqin Peng, Jincheng Yan
To observe the clinical outcome of the sinus tarsi approach in the operative treatment of intra-articular calcaneal fractures.Forty-nine intra-articular calcaneal fractures in 45 patients were managed surgically with sinus tarsi approach. The anatomical plate and compression bolts were applied in 14 feet. The anatomical plate and screws were applied in 35 feet. Maryland foot score system was used to evaluate the function of the hindfoot at the followup.The reduction of the posterior facet was graded as nearly anatomical (less than 2 mm articular displacement) in 46 feet (93...
March 2018: Medicine (Baltimore)
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