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Foot and ankle anatomy

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https://www.readbyqxmd.com/read/28990838/3d-printing-calcaneal-fractures-continuously-improving-our-care-by-making-a-complex-problem-tangible
#1
Tim Schepers, Dominique Misselyn
Calcaneal fractures are amongst the most complex injuries known to man. Their intricate anatomy and extensive damage after trauma make them difficult to understand and treat. Most surgeons specialized in foot and ankle trauma agree that in most patients surgical managements yields the best result. Functional outcome is largely dependent on preventing complications and restoring anatomy. Reconstruction of height and suntalar joint congruency for example are both associated with improved outcome. Over the years insight in the complex (patho-)anatomy has increased...
October 9, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28924737/contribution-to-the-anatomical-nomenclature-concerning-lower-limb-anatomy
#2
David Kachlik, Vladimir Musil, Vaclav Baca
PURPOSE: The aim of this article is to extend and revise the sections of Terminologia Anatomica (TA) dealing with the lower limb structures and to justify the use of newly proposed anatomical terms in clinical medicine, education, and research. METHODS: Anatomical terms were gathered during our educational experience from anatomical textbooks and journals and compared with the four previous editions of the official Latin anatomical nomenclature. RESULTS: The authors summarise 270 terms with their definitions and explanations for both constant and variable morphological structures (bones, joints, muscles, vessels, nerves and superficial structures) of the hip, thigh, knee, leg, ankle, and foot completed with several grammatical remarks and some general anatomical terms...
September 18, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28876452/management-of-primary-malignant-bone-and-soft-tissue-tumors-of-foot-and-ankle-is-it-worth-salvaging
#3
Harzem Özger, Buğra Alpan, Osman Emre Aycan, Natig Valiyev, Mustafa Çağlar Kir, Fulya Ağaoğlu
BACKGROUND AND OBJECTIVE: Performing limb salvage with safe margins and preserving meaningful function is very difficult in the setting of primary malignant bone and soft tissue tumors due to the complex and constrained anatomy of the foot and ankle. The study aims to evaluate the efficacy of limb salvage procedures in terms of functional and oncological outcomes. METHODS: Clinical data of 48 patients, who underwent surgical treatment between 1992 and 2015 in our institution, were retrospectively analyzed...
September 6, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28828179/the-subtalar-joint-a-complex-mechanism
#4
Nicola Krähenbühl, Tamara Horn-Lang, Beat Hintermann, Markus Knupp
Subtalar joint anatomy is complex and can vary significantly between individuals.Movement is affected by several adjacent joints, ligaments and periarticular tendons.The subtalar joint has gained interest from foot and ankle surgeons in recent years, but its importance in hindfoot disorders is still under debate.The purpose of this article is to give a general overview of the anatomy, biomechanics and radiographic assessment of the subtalar joint.The influence of the subtalar joint on the evolution of ankle joint osteoarthritis is additionally discussed...
July 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28818476/complex-anatomic-abnormalities-of-the-lower-leg-muscles-and-tendons-associated-with-phocomelia-a-case-report
#5
Thomas Hodo, Mark Hamrick, Yulia Melenevsky
Musculoskeletal anatomy is widely known to have components that stray from the norm in the form of variant muscle and tendon presence, absence, origin, insertion, and bifurcation. Although these variant muscles and tendons might be deemed incidental and insignificant findings by most, they can be important contributors to pathologic physiology or, more importantly, an option for effective treatment. In the present case report, we describe a patient with phocomelia and Müllerian abnormalities secondary to in utero thalidomide exposure...
August 14, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28779803/deltoid-ligament-repair-in-flatfoot-deformity
#6
REVIEW
Ezekiel Oburu, Mark S Myerson
Deltoid ligament reconstruction allows for joint preservation of the ankle in the setting of patients a triple arthrodesis due to a flat foot deformity. Although the increased forces that may occur in the ankle joint after a triple arthrodesis cannot be eliminated, reconstruction of the ligament will delay and may prevent the onset arthritis, allowing the patient to maintain mobility of the ankle joint. The anatomy, surgery, and risks and benefits are discussed.
September 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28736620/peroneal-tendon-disorders
#7
REVIEW
Kinner Davda, Karan Malhotra, Paul O'Donnell, Dishan Singh, Nicholas Cullen
Pathological abnormality of the peroneal tendons is an under-appreciated source of lateral hindfoot pain and dysfunction that can be difficult to distinguish from lateral ankle ligament injuries.Enclosed within the lateral compartment of the leg, the peroneal tendons are the primary evertors of the foot and function as lateral ankle stabilisers.Pathology of the tendons falls into three broad categories: tendinitis and tenosynovitis, tendon subluxation and dislocation, and tendon splits and tears. These can be associated with ankle instability, hindfoot deformity and anomalous anatomy such as a low lying peroneus brevis or peroneus quartus...
June 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28705216/surgical-management-of-hawkins-type-iii-talar-neck-fracture-through-the-approach-of-medial-malleolar-osteotomy-and-mini-plate-for-fixation
#8
Hui Liu, Zhida Chen, Wenrong Zeng, Yuanfei Xiong, Yongzhi Lin, Huacheng Zhong, Jin Wu
BACKGROUND: Fractures of the talar neck are relatively uncommon yet current interventions suffer from a high incidence of complications and poor functional outcomes. In the present study, we report a surgical treatment of Hawkins type III talar neck fracture through the approach of medial malleolar osteotomy and mini-plate for fixation and discuss the therapeutic effects after long-term follow-up. METHODS: From January 2010 to January 2015, 21 patients with 22 fractures were treated using this approach within days of sustaining the injury...
July 14, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28630763/malignant-tumours-of-the-foot-and-ankle
#9
E Mascard, N Gaspar, L Brugières, C Glorion, S Pannier, A Gomez-Brouchet
Most of tumours of the foot are tumour-like (synovial cyst, foreign body reactions and epidermal inclusion cyst) or benign conditions (tenosynovial giant cells tumours, planta fibromatosis). Malignant tumours of the soft-tissue and skeleton are very rare in the foot and their diagnosis is often delayed with referral to specialised teams after initial inappropriate procedures or unplanned excisions. The adverse effect of these misdiagnosed tumours is the increasing rate of amputation or local recurrences in the involved patients...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28624855/ct-arthrography-visualizes-tissue-growth-of-osteochondral-defects-of-the-talus-after-microfracture
#10
Hong-Geun Jung, Na-Ra Kim, Ji-Young Jeon, Dong-Oh Lee, Jun-Sang Eom, Jong-Soo Lee, Sung-Wook Kim
PURPOSE: Little is known about the arthroscopic or radiographic outcomes after arthroscopic microfracture of osteochondral lesions of the talus (OLTs). The purpose of this study was to investigate tissue growth after arthroscopic microfracture of OLTs using computed tomography arthrography (CTA) and to identify the relationship between CTA findings and clinical outcomes. We hypothesized that the morphology of the repaired tissue would be similar to that of normal anatomy and correlate with the clinical outcomes...
June 17, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28594068/chimpanzee-ankle-and-foot-joint-kinematics-arboreal-versus-terrestrial-locomotion
#11
Nicholas B Holowka, Matthew C O'Neill, Nathan E Thompson, Brigitte Demes
OBJECTIVES: Many aspects of chimpanzee ankle and midfoot joint morphology are believed to reflect adaptations for arboreal locomotion. However, terrestrial travel also constitutes a significant component of chimpanzee locomotion, complicating functional interpretations of chimpanzee and fossil hominin foot morphology. Here we tested hypotheses of foot motion and, in keeping with general assumptions, we predicted that chimpanzees would use greater ankle and midfoot joint ranges of motion during travel on arboreal supports than on the ground...
September 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28573372/a-survey-of-anatomical-items-relevant-to-the-practice-of-rheumatology-pelvis-lower-extremity-and-gait
#12
Cristina Hernández-Díaz, José Alvarez-Nemegyei, José Eduardo Navarro-Zarza, Pablo Villaseñor-Ovies, Robert A Kalish, Juan J Canoso, Angélica Vargas, Karla Chiapas-Gasca, Joseph J Biundo, Francisco Javier de Toro Santos, Dennis McGonagle, Simon Carette, Miguel Ángel Saavedra
This study aimed to generate a minimum list of structural and functional anatomical items about the pelvis/hip, knee, ankle/foot, gait, and lower limb innervation, which are most relevant to the practice of rheumatology. To determine their perceived relevance to clinical practice, seven members of the Mexican Clinical Anatomy Task Force compiled an initial list of 470 anatomical items. Ten local and international experts according to a 0-10 Likert scale ranked these items. Of the original list, 101 (21.48%) items were considered relevant (global rate >40)...
June 1, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28553174/technetium-99m-methylene-diphosphonate-single-photon-emission-computed-tomography-computed-tomography-of-the-foot-and-ankle
#13
REVIEW
Bhavin Upadhyay, Jonathan Mo, Clare Beadsmoore, Tom Marshall, Andoni Toms, John Buscombe
The complex anatomy and function of the foot and ankle can make it difficult to determine the cause of symptoms in patients with foot and ankle pathology. Following initial clinical and radiographic assessment, additional imaging with magnetic resonance imaging may be required, which is often seen as the modality of choice. Although sensitive to pathological changes in bone metabolism and vascularity, technetium-99m (Tc-99m) bone scintigraphy often lacks the specificity and resolution required to evaluate the structures of the foot and ankle...
April 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28514214/imaging-of-acute-capsuloligamentous-sports-injuries-in-the-ankle-and-foot-sports-imaging-series
#14
James M Linklater, Catherine L Hayter, Dzung Vu
The ankle and foot are commonly injured during sporting activities. Clinical diagnosis can at times be challenging, due to the complex anatomy and multiple sites of potential injury. In the athlete, there is a reduced threshold for imaging to clarify diagnosis, guide prognosis, and treatment. Diagnostic imaging is also helpful in evaluating ongoing symptoms in the subacute or chronic setting. (©) RSNA, 2017.
June 2017: Radiology
https://www.readbyqxmd.com/read/28382374/proximal-peroneus-longus-tear-rare-case-in-a-teenage-athlete-and-review-of-the-literature
#15
Matthew Winfeld, Nancy Chauvin
We present the case of a 15-year-old teenager who sustained an ankle inversion injury while playing American football, which yielded only minimal pain, but also foot numbness and a lateral leg bulge. Magnetic resonance imaging evaluation revealed a proximal peroneal tear. These rare injuries are often associated with compartment syndrome, a surgical emergency, which was ultimately excluded clinically in this patient. Relevant anatomy, mechanism of injury, and clinical manifestations are discussed.
July 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28367689/operative-anatomy-of-the-medial-gastrocnemius-recession-vs-the-proximal-medial-gastrocnemius-recession
#16
Nathan Kaplan, Xavier Fowler, Noorullah Maqsoodi, Benedict DiGiovanni, Irvin Oh
BACKGROUND: Isolated gastrocnemius contracture (IGC) is associated with various foot and ankle pathologies. To address the problem of IGC, a number of gastrocnemius lengthening procedures have been described. Although proximal medial gastrocnemius recession (PMGR) has shown to be an effective operative treatment for IGC, it poses risks to various anatomic structures around the knee joint and requires the patient to be positioned prone. As an alternative, we proposed to release the medial gastrocnemius at the division between the proximal one-third and distal two-thirds of the gastrocnemius muscle to correct equinus contracture, while minimizing risk to other structures...
April 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28337049/use-of-3d-printed-bone-plate-in-novel-technique-to-surgically-correct-hallux-valgus-deformities
#17
Kathryn E Smith, Kenneth M Dupont, David L Safranski, Jeremy Blair, Dawn Buratti, Vladimir Zeetser, Ryan Callahan, Jason Lin, Ken Gall
Three-dimensional (3-D) printing offers many potential advantages in designing and manufacturing plating systems for foot and ankle procedures that involve small, geometrically complex bony anatomy. Here, we describe the design and clinical use of a Ti-6Al-4V ELI bone plate (FastForward™ Bone Tether Plate, MedShape, Inc., Atlanta, GA) manufactured through 3-D printing processes. The plate protects the second metatarsal when tethering suture tape between the first and second metatarsals and is a part of a new procedure that corrects hallux valgus (bunion) deformities without relying on doing an osteotomy or fusion procedure...
September 2016: Techniques in Orthopaedics: TIO
https://www.readbyqxmd.com/read/28306191/biomechanical-markers-and-theoretical-concepts-related-to-haemophilic-ankle-and-subtalar-joint-arthropathy-introducing-the-term-haemophilic-tarsal-pan-arthropathy
#18
REVIEW
S Lobet, A McCarthy, C Hermans, K Peerlinck, G A Matricali, F Staes, K Deschamps
BACKGROUND: Although regular factor replacement can reduce the incidence of joint bleeds and slow down the development of haemophilic arthropathy, the ankle joint remains particularly vulnerable even in children with haemophilia on primary or secondary prophylaxis and is now the primary joint affected. The heterogeneity in the pathoaetiology of haemophilic ankle arthropathy means that the functional consequences of early stage of ankle arthropathy are difficult to define as early morphological and structural changes can be observed in clinically asymptomatic ankles...
March 17, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28262467/quantitative-assessment-of-peroneal-artery-pressure-at-the-ankle-with-noninvasive-vascular-testing
#19
Whitney Ellis-McConnell, Amanda Taylor, Patrick Kelly, Andrew J Meyr
Although the foot and ankle derives its arterial supply from a combination of the anterior tibial artery (ATA), posterior tibial artery (PTA), and peroneal artery (PA), the focus of clinical examination techniques and noninvasive vascular testing is primarily on the ATA and PTA and not on the PA. The objectives of the present investigation were to evaluate the feasibility of incorporating an assessment of the PA into a noninvasive vascular testing protocol and to collect normative data of pressure measurements of the PA at the ankle...
March 2, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28250804/predictive-behavior-of-a-computational-foot-ankle-model-through-artificial-neural-networks
#20
Ruchi D Chande, Rosalyn Hobson Hargraves, Norma Ortiz-Robinson, Jennifer S Wayne
Computational models are useful tools to study the biomechanics of human joints. Their predictive performance is heavily dependent on bony anatomy and soft tissue properties. Imaging data provides anatomical requirements while approximate tissue properties are implemented from literature data, when available. We sought to improve the predictive capability of a computational foot/ankle model by optimizing its ligament stiffness inputs using feedforward and radial basis function neural networks. While the former demonstrated better performance than the latter per mean square error, both networks provided reasonable stiffness predictions for implementation into the computational model...
2017: Computational and Mathematical Methods in Medicine
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