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https://www.readbyqxmd.com/read/28634924/chondroblastoma-in-adult-age
#1
Andrea Angelini, Mohammad Hassani, Andreas F Mavrogenis, Giulia Trovarelli, Carlo Romagnoli, Antonio Berizzi, Pietro Ruggieri
PURPOSE: Chondroblastoma (CB) is a rare benign tumor that occurs most commonly in the second decade of life. No studies on CB in adulthood have been reported. Our purposes were to report a single-institution experience on CB in adults and to discuss the clinical and imaging findings, type of treatment, oncologic and functional outcomes. PATIENTS AND METHODS: All patients diagnosed and treated for CB from 1981 to 2014 were reviewed. The main inclusion criterion was patients above their 30 years of age at diagnosis...
June 20, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28633783/a-biomechanical-analysis-of-interference-screw-versus-bone-tunnel-fixation-of-flexor-hallucis-longus-tendon-transfers-to-the-calcaneus
#2
George T Liu, B Christian Balldin, Jacob R Zide, Christopher T Chen
The flexor hallucis longus tendon transfer is commonly used to restore function in chronic Achilles tendon ruptures and chronic Achilles tendinopathy. The tendon is often secured to the calcaneus either through a bone tunnel or by an interference screw. We hypothesized that tenodesis using the bone tunnel method would be mechanically superior to interference screw fixation for flexor hallucis longus transfers. Eight matched pairs of cadaveric specimens were assigned randomly to the bone tunnel or interference screw technique and were loaded to failure...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28627197/dietary-antioxidant-quality-score-daqs-is-associated-with-bone-mass-assessed-by-calcaneal-quantitative-ultrasound-in-young-women
#3
María Correa Rodríguez, Jacqueline Schmidt-RioValle, Blanca Rueda-Medina
INTRODUCTION: Evidence suggests that intake of antioxidants could positively influence bone mass by preventing bone metabolism against oxidative stress. OBJECTIVE: We aimed to investigate the possible influence of single antioxidant intakes and dietary antioxidant quality score (DAQs) on calcaneal quantitative ultrasound (QUS) in a population of young adults. METHODS: A total of 605 young Spanish adults participated in this study (median age 20...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28625510/sexual-dimorphism-of-the-calcaneus-in-contemporary-cretans
#4
Despoina Nathena, Effrosyni Michopoulou, Elena F Kranioti
During the past decade, several studies have been carried out using the calcaneus bone for sex estimation. This paper collected data using ten variables for metric characteristics of the calcaneus of 144 modern Cretans and examined their correlation with known sex. Secondly, the formulae developed by Peckmann et al. (2015) for modern Athenians was put to the test in order to investigate if it could be applied to this modern Cretan sample as well. Results showed a high correlation between the calcaneus metrics and the known sex of the individuals, however the formulae for Athenians do not seem to be suitable for the Cretans due to the high sex bias reported in this study...
April 15, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28623061/comparison-of-extraosseous-talotarsal-stabilization-implants-in-a-stage-ii-adult-acquired-flatfoot-model-a-finite-element-analysis
#5
Jian Xu, Xin Ma, Daping Wang, Wei Lu, Weimin Zhu, Kan Ouyang, Haifeng Liu, Hao Li, Luoyong Jiang
Subtalar arthroereisis has been proved to be an efficient method for correcting flexible adult flatfoot. However, the optimal sinus tarsi implant is still debated and yet to be determined. In the present study, we compared the biomechanical effects of type I and II sinus tarsi implants in stage II adult-acquired flatfoot deformity (AAFD). First, a finite element model of stage II AAFD was established in which virtual surgery of subtalar arthroereisis was simulated. The indexes of plantar stress distribution, peak von Mises of the medial and lateral columns, strain of the medial ligaments and plantar fascia, arch height, talo-first metatarsal angle, calcaneus pitch angle, talonavicular coverage angle, and hindfoot valgus angle were all compared and analyzed...
June 13, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28619268/ankle-hindfoot-after-calcaneal-fractures-a-biomechanical-study
#6
Xu Can, Li Mingqing, Wang Chenggong, Li Kanghua, Liu Hua
INTRODUCTION: Both the overall shape of the calcaneus and anatomical reduction of joint congruity are important prognostic factors. However, there is a significant lack of biomechanical data supporting the clinical importance of calcaneus height, length and heel width. The objective of this study was to determine the effects of abnormal calcaneus morphology on ankle-hindfoot biomechanics. HYPOTHESIS: The normal biomechanics of the ankle-hindfoot would be severely disrupted by the abnormal calcaneus morphology...
June 12, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28617792/simultaneous-bilateral-snowboarder-s-fractures-in-a-young-woman-a-rare-entity
#7
Avajit Barai, Ralph Scorgie, Bruce Lambie
BACKGROUND: Talus is a well-supported bone in the foot. A fracture of talus requires a high-impact injury. A wedge-shaped inferolateral component is the lateral process of the talus (LPT). A fracture of LPT is also known as a 'snowboarder's fracture'. Simultaneous bilateral snowboarder's fracture is rarely reported in English literature. CASE: We present here a case of simultaneous bilateral snowboarder's fractures in a slow-moving motor vehicle accident in the icy conditions...
June 16, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28616637/calcaneal-cysts-and-lipomas-a-common-pathogenesis
#8
REVIEW
Jacques Malghem, Frédéric Lecouvet, Bruno Vande Berg
Calcaneal cysts and lipomas are relatively rare, benign bone lesions. They are similar in many ways, including in their location and radiological appearance, but their content differs. Cysts contain fluid whereas lipomas contain fat, although some lesions may exhibit a mixed content. The pathogenesis of the two entities is the subject of controversy. The theory that calcaneal cysts may result from lipomatous necrosis has been widely suggested in the literature, but no such progression has ever been shown. The contrary hypothesis has also been considered, i...
June 14, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28612898/sex-estimation-by-femur-in-modern-thai-population
#9
T Monum, S Prasitwattanseree, S Das, P Siriphimolwat, P Mahakkanukrauh
Sex estimation is an important step of postmortem investigation and the femur is a useful bone for sex estimation by using metric analysis method. Even though there have been a reported sex estimation method by using femur in Thais, the temporal change related to time and anthropological data need to be renewed. Thus the aim of this study is to re-evaluate sex estimation by femur in Thais. 97 adult male and 103 female femora were random chosen from Forensic osteology research center and 6 measurements were applied tend to...
May 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/28610630/osteosarcoma-of-the-lower-limb-metastasized-to-the-septum-and-right-side-of-the-heart-a-case-report
#10
Elisha Osati, Alice Kaijage, Reuben Muta, Peter Muhoka, Merckris Mango, Peter Kisenge, Bashir Nyangasa, Pedro Pallangyo, Delillah Kimambo, Mohamed Janabi
BACKGROUND: Metastatic cardiac tumors are far more common than primary tumors. Although the hematogenous spread of osteosarcoma is well known, the imaging findings of cardiovascular involvement by osteosarcoma are seldom reported and can be difficult to recognize. CASE PRESENTATION: A 21-year-old man of African descent presented to our center complaining of shortness of breath, awareness of heart beats, easy fatigability, swelling of lower limbs, and left-side chest discomfort for the past 6 months getting worse for the last 3 months prior to his third readmission...
June 13, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28603855/stress-fractures-of-the-calcaneus-diagnosed-by-sonography-report-of-8-cases
#11
Stefano Bianchi, Dien Hung Luong
We present a retrospective review of 8 patients (6 women and 2 men, with an age range of 46-80 years; mean age, 60.2 years) in whom sonography was used to diagnose a calcaneal stress fracture. Sonography was performed because of a clinical suspicion of soft tissue injuries. Two patients were first assessed by standard radiography; for the remaining patients, sonography was the first imaging technique used. Patients were subsequently examined by magnetic resonance imaging, except for 1 patient in whom the diagnosis was made only on a clinical-sonographic correlation...
June 12, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28597687/comparison-of-calcaneal-exposure-through-the-extensile-lateral-and-sinus-tarsi-approaches
#12
Katherine M Bedigrew, James A Blair, Daniel R Possley, Kevin L Kirk, Joseph R Hsu
The purpose of this study was to compare the exposure of the posterior facet with the extensile lateral (EL) approach compared with the sinus tarsi (ST) approach. We hypothesized that the ST approach will provide a similar exposure of the posterior calcaneal facet. A total of 8 sequential ST then EL approaches were performed on cadavers. Calcaneal landmarks were identified by visualization or palpation. Calibrated digital photographs of the posterior facet and lateral calcaneal body were obtained from standardized positions and used to calculate the exposed surface area...
June 1, 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28594488/fractures-of-the-calcaneus
#13
Mark R Adams, John W Munz, Kenneth L Koury
Calcaneal fractures are potentially devastating injuries. To effectively manage calcaneal fractures, surgeons must understand the anatomy of the calcaneus as well as the surgical techniques necessary to restore normal biomechanics of the foot. Surgeons also must understand calcaneal fracture patterns and classifications; initial management techniques, surgical indications and rationale, temporizing management techniques, surgical approaches, definitive management techniques, and postoperative management for calcaneal fractures; as well as outcomes and common complications of calcaneal fractures...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28592232/association-of-frontal-plane-knee-alignment-with-foot-posture-in-patients-with-medial-knee-osteoarthritis
#14
Hiroshi Ohi, Hirotaka Iijima, Tomoki Aoyama, Eishi Kaneda, Kazuko Ohi, Kaoru Abe
BACKGROUND: To examine the association of radiographic frontal plane knee alignment with three-dimensional foot posture in patients with medial knee osteoarthritis (OA). METHODS: Participants in orthopedic clinics with Kellgren/Lawrence (K/L) grade ≥1 (88 patients and 88 knees; age, 61-91 years; 65.9% female) were enrolled. An anteroposterior radiographic view was used to assess the anatomical axis angle (AAA) after subtracting a sex-specific correction factor...
June 7, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28571173/flat-foot-in-a-random-population-and-its-impact-on-quality-of-life-and-functionality
#15
Salvador Pita-Fernandez, Cristina Gonzalez-Martin, Francisco Alonso-Tajes, Teresa Seoane-Pillado, Sonia Pertega-Diaz, Sergio Perez-Garcia, Rocio Seijo-Bestilleiro, Vanesa Balboa-Barreiro
INTRODUCTION: Flat foot is a common deformity in adults. It is characterized by medial rotation and plantar flexion of the talus, eversion of the calcaneus, collapsed medial arch and abduction of the forefoot. AIM: The aim of this study was to determine the prevalence of flat foot and its impact on quality of life, dependence, foot pain, disability and functional limitation among random population of 40-year-old and above. MATERIALS AND METHODS: A cross-sectional study in a random population sample from Cambre (A Coruña-Spain) (n=835) was performed (α =0...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28568076/a-statistical-method-for-reassociating-human-tali-and-calcanei-from-a-commingled-context
#16
Ioanna Anastopoulou, Fotios A Karakostis, Matteo Borrini, Konstantinos Moraitis
In a commingled context, assessing that a talus and a calcaneus correspond to the same individual could become a primary step for accurately sorting human remains. For this purpose, the lengths and widths of the trochlea, posterior calcaneal articular surface, and posterior talar articular surface were measured in 197 individuals (105 males, 92 females) from the Athens Collection. A total of 12 highly accurate equations for reassociating tali and calcanei were developed, using simple and multiple linear regression analysis and they were found to be suitable for sorting commingled human remains...
June 1, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28561380/functional-adaptation-of-the-calcaneus-in-historical-foot-binding
#17
Natalie Reznikov, Carina Phillips, Martyn Cooke, Amin Garbout, Farah Ahmed, Molly M Stevens
The normal structure of human feet is optimized for shock dampening during walking and running. Foot binding was a historical practice in China aimed at restricting the growth of female feet for aesthetic reasons. In a bound foot the shock-dampening function normally facilitated by the foot arches is withdrawn, resulting in the foot functioning as a rigid extension of the lower leg. An interesting question inspiring this study regards the nature of adaptation of the heel bone to this non-physiological function using the parameters of cancellous bone anisotropy and 3D fabric topology using a novel inter-trabecular angle (ITA) analysis...
May 31, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28549622/multiple-abnormalities-in-the-feet-and-associated-changes-elsewhere-in-the-skeleton-the-case-of-3a-7-from-a-capsian-site-in-algeria
#18
M Jackes, M Parent, D Lubell
A skeleton with a number of abnormalities is described involving full discussion of alternative diagnoses. In this complex case, the primary diagnosis is of avulsion of the stem of the bifurcate ligament causing a fracture of the anterior process of the calcaneus. The bilateral fracture identified in Skeleton 3A-7 from Site 12, a Capsian site in Algeria, is a result of the feet being inverted and plantar flexed: the fracture is prone to non-union, which is asymmetrical here. There is also a separate anatomical variation of the feet, 3rd cuneiform and 3rd metatarsal coalition, which was not the cause of trauma...
May 5, 2017: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/28540145/a-rare-case-of-osteomyelitis-caused-by-haemophilus-parainfluenzae
#19
Fernando Cobo, Gemma Jiménez, Javier Rodríguez-Granger, Antonio Sampedro, Luis Aliaga-Martínez
Haemophilus parainfluenzae is a rare cause of bone and joint infections. We report a case of calcaneal osteomyelitis due to this microorganism with a review of all published. A 23-year-old woman presented with a 1-month history of pain and inflammation in the calcaneus area. Osteomyelitis was suspected at this location based on computed tomography images. Culture of six bone biopsies and surrounding tissue resulted in the isolation of H. parainfluenzae. Surgical drainage and debridement was performed, and antibiotic treatment was prescribed, resolving the infection...
2017: Journal of bone and joint infection
https://www.readbyqxmd.com/read/28534210/association-study-of-estrogen-receptor-alpha-gene-polymorphisms-with-bone-mass-assessed-by-quantitative-ultrasound-in-young-adults
#20
María Correa-Rodriguez, Jacqueline Schmidt-RioValle, Blanca Rueda-Medina
Different genetic variants in estrogen receptor alpha (ESR1) have been shown to influence bone phenotypes including quantitative bone ultrasound in elderly. We aimed to investigate the role of ESR1 polymorphisms in bone mass assessed by calcaneal quantitative ultrasound (QUS) in a population of young adults. The study sample consisted of 466 healthy individuals of Caucasian ancestry (315 females and 152 males) aged 18 and 25 years (median age 20.39 ± 2.70). Six ESR1 polymorphisms (rs302033, rs2982552, rs2982575, rs2504063, rs2234693-PvuII and rs9340799-XbaI) were selected as genetic markers and genotyped...
May 22, 2017: Rheumatology International
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