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https://www.readbyqxmd.com/read/28109624/metatarsalgia
#1
REVIEW
J-L Besse
The causes of metatarsalgia are classified as primary, secondary, and iatrogenic. Anatomical and biomechanical considerations separate "static" from "propulsive" forms of metatarsalgia. The physical examination should be combined with an assessment of weight-bearing radiographs and, if needed, of ultrasound or magnetic resonance imaging scans. The first-line treatment is conservative (stretching exercises, footwear modification, insoles, and lesion debridement). Soft-tissue surgical procedures (gastrocnemius muscle recession, tendon transfer, and plantar plate repair) should also be considered...
January 18, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28109309/role-of-magnetic-resonance-imaging-versus-ultrasound-for-detection-of-plantar-plate-tear
#2
REVIEW
Xin Duan, Lang Li, Dai-Qing Wei, Ming Liu, Xi Yu, Zhao Xu, Ye Long, Zhou Xiang
BACKGROUND: Plantar plate tears could be the reason of forefoot pain, affecting foot function. Magnetic resonance imaging (MRI) and ultrasound (US) were commonly used for the diagnosis of plantar plate tears. The decision of whether to use MRI or US carried some controversy. Our study aimed to find out the diagnostic accuracy of MRI versus US for plantar plate tears. METHODS: The database of the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, EMBASE, and relative orthopedic meetings until May 2016 were searched...
January 21, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28095763/effect-of-socks-structures-on-plantar-dynamic-pressure-distribution
#3
Zeynab Soltanzadeh, Saeed Shaikhzadeh Najar, M Haghpanahi, M R Mohajeri-Tehrani
A major purpose of investigating the plantar pressure in patients with pain or those at risk for skin injury is to reduce the pressure below metatarsal heads, specially first and second metatarsal heads. The aim of this article is to evaluate the effects of the socks structures on the changes in plantar dynamic pressure. In this study, seven socks types with different structures for the sole area were produced. The Gaitview(®) AFA-50 system, a force plate, was used to measure the plantar dynamic pressure of 10 participants...
November 2016: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28074463/importance-of-fixation-of-posterior-malleolus-fracture-in-trimalleolar-fractures-a-retrospective-study
#4
Sinan Karaca, Meriç Enercan, Güzelali Özdemir, Sinan Kahraman, Mutlu Çobanoğlu, Metin Küçükkaya
BACKGROUND: The aim of this retrospective study was to evaluate treatment effect and importance of posterior malleolus (PM) fixation in surgically treated trimalleolar fractures. METHODS: A total of 57 cases of ankle joint fracture involving PM and treated with open reduction and internal fixation technique between 2004 and 2011 were evaluated. PM fixation was performed with cannulated screws in 46 cases, and in 11 cases, PM plate was used. All patients were assessed using American Orthopaedic Foot and Ankle Society (AOFAS) score, American Academy of Orthopedic Surgeons (AAOS) foot and ankle questionnaire, and Visual Analog Score (VAS) pain scale...
November 2016: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28040362/role-of-the-nlrp3-inflammasome-in-a-model-of-acute-burn-induced-pain
#5
Jennifer R Deuis, Kathleen Yin, Matthew A Cooper, Kate Schroder, Irina Vetter
The NLRP3 inflammasome is a multi-protein complex that assembles in response to tissue damage or infection, triggering activation of caspase-1, an enzyme that converts interleukin (IL)-1β into its active form. A role for the NLRP3 inflammasome is emerging in inflammatory pain, but its influence in other pain types is largely unexamined. Therefore the aim of this study was to assess the role of the NLRP3 inflammasome and its downstream product caspase-1 in a model of acute burn-induced pain in male mice. A superficial burn was induced on the plantar surface of the left hind paw using a hot plate set at 52...
December 28, 2016: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28003923/interdigital-neuroma-in-the-second-intermetatarsal-space-associated-with-metatarsophalangeal-joint-instability
#6
Takumi Matsumoto, Song Ho Chang, Naohiro Izawa, Yohei Ohshiro, Sakae Tanaka
The entrapment theory is the most commonly accepted theory concerning the development of interdigital neuroma; it incriminates the deep transverse metatarsal ligament as the major causative factor of the condition. This report presents a patient with interdigital neuroma in the second intermetatarsal space, which was strongly suspected to be caused by the metatarsophalangeal joint instability due to plantar plate injury. Surgical intervention revealed that the neuroma was located more distally and dorsally than the deep transverse metatarsal ligament and was pinched between the adjacent metatarsal heads, suggesting the involvement of the metatarsophalangeal joint instability and chronic trauma as etiologies in this case...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27988285/cardamonin-attenuates-hyperalgesia-and-allodynia-in-a-mouse-model-of-chronic-constriction-injury-induced-neuropathic-pain-possible-involvement-of-the-opioid-system
#7
Yogesvari Sambasevam, Ahmad Akira Omar Farouk, Tengku Azam Shah Tengku Mohamad, Mohd Roslan Sulaiman, B Hemabarathy Bharatham, Enoch Kumar Perimal
Neuropathic pain arises from the injury of nervous system. The condition is extremely difficult to be treated due to the ineffectiveness and presence of various adverse effects of the currently available drugs. In the present study, we investigated the antiallodynic and antihyperlagesic properties of cardamonin, a naturally occurring chalcone in chronic constriction injury (CCI)-induced neuropathic pain mice model. Our findings showed that single and repeated dose of intra-peritoneal administration of cardamonin (3, 10, 30mg/kg) significantly inhibited (P<0...
December 15, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27942124/effects-of-orthotic-insoles-on-adults-with-flexible-flatfoot-under-different-walking-conditions
#8
Jun Na Zhai, Yu Sheng Qiu, Jue Wang
[Purpose] This study was to evaluate the effects of orthotics on adults with flexible flatfoot when wearing orthotic insoles while walking on horizontal ground, walking up and down stairs and to determine if flexible flatfoot needs treatment. [Subjects and Methods] Fifteen college students with flexible flatfoot and fifteen college students with normal feet were recruited. First, load rate and contact area were measured by RSscan force plate when the subjects were walking on horizontal ground, walking up and down 10 cm and 20 cm stairs...
November 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27936441/intra-and-intersession-repeatability-and-reliability-of-the-s-plate%C3%A2-pressure-platform
#9
Marta Izquierdo-Renau, Pedro Pérez-Soriano, Vicent Ribas-García, Ana Queralt
AIM: The aim of this study was to assess the repeatability and reliability of the S-Plate® pressure platform in a group of healthy subjects. MATERIAL AND METHODS: Forty subjects, free from physical conditions that would affect normal gait, walked along a five-meter corridor while data were recorded from the pressure platform. A total of 10 steps (five each side) were obtained as well as five static trials; the same measurements were repeated one week later. Peak and mean plantar pressures and contact area were recorded for both dynamic and static trials...
December 2, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27904023/early-embryonic-development-of-long-tendons-in-the-human-foot
#10
Masahito Yamamoto, Yasuhiro Shiraishi, Kei Kitamura, Zhe Wu Jin, Gen Murakami, Jose Francisco Rodríguez-Vázquez, Shin-Ichi Abe
To examine a common plantar tendinous plate for long flexors of the toe and fingers in human embryos, we observed sections of 10 embryos at 5-6 weeks (crown-rump length or CRL 15-21 mm). The heel or tuber of the calcaneus was underdeveloped in 3 embryos with CRL 15 mm and the talus appeared not to be piled up on the calcaneus but these two bones were arranged along the lateromedial axis. As reported in the hand, we demonstrated, in the deep side of tarsal bones, a common tendinous plate formed by a joining of the flexor halluces longus and flexor digitorum longus tendons...
2016: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/27888844/mr-imaging-of-the-plantar-plate-normal-anatomy-turf-toe-and-other-injuries
#11
REVIEW
Caio Nery, Daniel Baumfeld, Hilary Umans, André F Yamada
The metatarsophalangeal (MTP) joint complex is a weight-bearing structure important to the biomechanics of the standing position, walking, shoe wearing, and sport participation. Acute dorsiflexion injury of the first MTP joint, "turf toe," is common among American football and soccer players. The first and lesser MTP joint complexes can be affected by degenerative or inflammatory arthritis, infarct, and infection. These conditions can lead to plantar plate disruption. Imaging studies help physicians to properly diagnose and treat this condition...
February 2017: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/27881829/biomechanical-comparison-of-fixation-devices-for-first-metatarsocuneiform-joint-arthrodesis
#12
Ashleen R Knutsen, John F Fleming, Edward Ebramzadeh, Nathan C Ho, Tibor Warganich, Thomas G Harris, Sophia N Sangiorgio
: Common surgical treatment of first tarsal-metatarsal arthritis is by first metatarsocuneiform joint arthrodesis. While crossed-screw and locking plate fixation are the most widely used methods, a novel construct was designed to alleviate soft tissue irritation while still providing stable fixation. Using anatomic first metatarsal and medial cuneiform composites, we compared 3 arthrodesis implants (crossed-screw, dorsal locking plate, and IO Fix) under 2 cyclic bending loading scenarios (cantilever and 4-point bending)...
November 23, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27881742/association-of-abnormal-metatarsal-parabola-with-second-metatarsophalangeal-joint-plantar-plate-pathology
#13
Adam E Fleischer, Erin E Klein, Maheen Ahmad, Shivang Shah, Fernanda Catena, Lowell Scott Weil, Lowell Weil
BACKGROUND: Plantar plate pathology is common, yet it is unclear whether, and to what extent, the length of the second metatarsal contributes to this problem. METHODS: We conducted a retrospective case-control (1:2) study to examine radiographic risk factors for plantar plate tears. One hundred patients (age 55.7 ± 12.3 years) with plantar plate injuries and 200 healthy controls (age 56.3 ± 11.3 years) were included. Cases were defined as patients with nonacute, isolated, plantar plate pathology of the second metatarsophalangeal joint confirmed by intraoperative inspection at a single foot and ankle specialty practice from June 1, 2007, to January 31, 2014...
November 22, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27866887/quality-of-early-union-after-first-metatarsophalangeal-joint-arthrodesis
#14
Florian Wanivenhaus, Norman Espinosa, Philippe M Tscholl, Fabian Krause, Stephan H Wirth
The aim of the present retrospective cohort study was to assess the quality of union and the clinical outcomes in patients who had undergone first metatarsophalangeal joint (MTPJ) fusion using a dorsal plate and plantar lag screw. From March 2011 to December 2012, the clinical and radiographic data of 39 patients (41 feet) who had undergone first MTPJ fusion using a compressive locking plate were retrospectively reviewed. All patients had undergone postoperative computed tomography at 6 weeks postoperatively to assess union...
January 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27857950/the-thermal-probe-test-a-novel-behavioral-assay-to-quantify-thermal-paw-withdrawal-thresholds-in-mice
#15
Jennifer R Deuis, Irina Vetter
Rodent models are frequently used to improve our understanding of the molecular mechanisms of pain and to develop novel analgesics. Robust behavioral assays that quantify nociceptive responses to different sensory modalities, such has heat, are therefore needed. Here, we describe a novel behavioral assay to quantify thermal paw withdrawal thresholds in mice, called the thermal probe test, and compared it with other methods commonly used to measure heat thresholds, namely the Hargreaves test and the dynamic and conventional hot plate tests...
April 2016: Temperature: Multidisciplinary Biomedical Journal
https://www.readbyqxmd.com/read/27852647/plantar-plate-repair-for-lesser-metatarsophalangeal-joint-instability
#16
Wesley W Flint, David M Macias, James R Jastifer, Jesse F Doty, Christopher B Hirose, Michael J Coughlin
BACKGROUND: Lesser metatarsophalangeal (MTP) joint instability is a common cause of forefoot pain. Advances in operative technique and instrumentation have made it possible to anatomically treat plantar plate tears through a dorsal approach. Our goal was to evaluate the subjective, functional, and radiographic outcomes of plantar plate repair (PPR) from a dorsal approach. METHODS: A prospective case series was performed evaluating the results of PPR in 97 feet with 138 plantar plate tears...
November 15, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27837037/comparison-of-locking-plate-with-interfragmentary-screw-versus-plantarly-applied-anatomic-locking-plate-for-lapidus-arthrodesis-a-biomechanical-cadaveric-study
#17
James M Cottom, Joseph S Baker
: Arthrodesis of the first metatarsal cuneiform joint, or Lapidus procedure, is a widely accepted treatment for hallux valgus. Recent studies have focused on comparing various constructs for this procedure both in the laboratory and clinical settings. The current study compared in a cadaveric model the strength of 2 constructs. The first construct utilized a medially applied low-profile locking plate and an interfragmentary screw directed from plantar-distal to dorsal-proximal. The second construct consisted of a plantarly applied plate with a compression screw placed through the plate from plantar-distal to dorsal-proximal...
November 10, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27782089/plantar-pressure-detection-with-fiber-bragg-gratings-sensing-system
#18
Tsair-Chun Liang, Jhe-Jhun Lin, Lan-Yuen Guo
In this paper, a novel fiber-optic sensing system based on fiber Bragg gratings (FBGs) to measure foot plantar pressure is proposed. This study first explores the Pedar-X insole foot pressure types of the adult-size chart and then defines six measurement areas to effectively identify four foot types: neutral foot, cavus foot, supinated foot and flat foot. The plantar pressure signals are detected by only six FBGs, which are embedded in silicone rubber. The performance of the fiber optic sensing is examined and compared with a digital pressure plate of i-Step P1000 with 1024 barometric sensors...
October 22, 2016: Sensors
https://www.readbyqxmd.com/read/27726748/ct-and-mr-imaging-of-the-postoperative-ankle-and-foot
#19
Gary M LiMarzi, Kurt F Scherer, Michael L Richardson, David R Warden, Christopher W Wasyliw, Jack A Porrino, Christopher R Pettis, Gideon Lewis, Christopher C Mason, Laura W Bancroft
A variety of surgical procedures exist for repair of both traumatic and degenerative osseous and soft-tissue pathologic conditions involving the foot and ankle. It is necessary for the radiologist to be familiar with these surgical procedures, so as to assess structural integrity, evaluate for complicating features, and avoid diagnostic pitfalls. Adequate interpretation of postoperative changes often requires access to surgical documentation to evaluate not only the surgery itself but the expected timeline for resolution of normal postoperative changes versus progressive disease...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27676992/spastic-cocontraction-of-plantar-flexors-during-swing-phase-of-gait-in-chronic-hemiparesis
#20
Mouna Ghedira, Jean-Michel Gracies, Valentina Mardale, Catherine-Marie Loche, Inke Marie Albertsen, Nicolas Bayle, Emilie Hutin
OBJECTIVE: In spastic hemiparesis, quantify agonist recruitment of tibialis anterior and triceps surae spastic cocontraction during swing phase of gait. MATERIAL/PATIENTS AND METHODS: Thirty-seven subjects with chronic hemiparesis (49±14 years, mean±SD; time since lesion, 8±7 years) performed a 3D gait analysis, barefoot at comfortable speed (10 optoelectronic cameras, 6 dynamometric force plates, analysis of 9 cycles), with bilateral electromyography of tibialis anterior (TA), soleus (SO) and gastrocnemius medialis (GM)...
September 2016: Annals of Physical and Rehabilitation Medicine
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