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https://www.readbyqxmd.com/read/28420541/stability-of-lisfranc-injury-fixation-in-thiel-cadavers-is-routine-fixation-of-the-1st-and-3rd-tarsometatarsal-joint-necessary
#1
Alistair I W Mayne, Robert Lawton, Stephen Dalgleish, Fraser Harrold, George Chami
BACKGROUND: There is debate as to whether a home run screw (medial cuneiform to 2nd metatarsal base) combined with k-wire fixation of the 4th & 5th tarsometatarsal joints is sufficient to stabilise Lisfranc injuries or if fixation of the 1st and 3rd tarsometatarsal joints is also required. Unlike the 2nd, 4th and 5th tarsometatarsal joints, stabilisation of the 1st and 3rd requires either intra-articular screw or an extra-articular plate which risk causing chondrolysis and/or osteoarthritis...
April 11, 2017: Injury
https://www.readbyqxmd.com/read/28393120/raman-identification-of-cuneiform-tablet-pigments-emphasis-and-colour-technology-in-ancient-mesopotamian-mid-third-millennium
#2
Daniele Chiriu, Pier Carlo Ricci, Carlo Maria Carbonaro, Davide Nadali, Andrea Polcaro, Paul Collins
Cuneiform tablets tell the life and culture of Sumerian people in a sort of black and white tale because of the binary engraving technique. A leading question arises: did Mesopotamian people apply some kind of colour to decorate their tablets or to put emphasis on selected words? Some administrative and literary Sumerian cuneiform tablets of mid-third Millennium B.C. from the site of Kish (central Mesopotamia, modern Iraq) were dug up in twentieth-century and stored at the Ashmolean Museum of the Oxford University...
March 2017: Heliyon
https://www.readbyqxmd.com/read/28370895/microscopic-diagnosis-of-the-leaf-and-stem-of-piper-solmsianum-c-dc
#3
A R P Bertocco, I P Migacz, V L P Santos, C R C Franco, R Z Silva, R A Yunes, V Cechinel-Filho, J M Budel
Piper solmsianum C.DC., which is popularly known as pariparoba, is a shrub that measures 1-3 m in height and it inhabits areas with wet tropical soils. The objective of this study was to analyze the leaf and stem anatomy using light microscopy, scanning electron micrographs, and energy-dispersive X-ray spectroscopy in order to provide information for species identification. The anatomical profile showed the following main microscopic markers: hypostomatic leaf; hypodermis layer on both sides; pearl glands; biconvex midrib shape; five collateral vascular bundles in open arc with the central bundle larger than the others; circular stem shape; collateral vascular bundles arranged in two rings; sinuous sclerenchymatic sheath in the pith; secretory idioblasts; and starch grains in the mesophyll, in the ground parenchyma of the midrib, petiole, and in the stem; and six morphotypes of calcium oxalate crystals (styloids, cuneiform, tabular crystal rosettes, cuneiform crystal rosettes, elongated square dipyramids, as well as very elongated square dipyramids)...
March 30, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28344910/gravity-stress-radiograph-revealing-instability-at-the-first-metatarso-cuneiform-joint-in-lisfranc-injury
#4
Pejma Shazadeh Safavi, William Weiss, Vinod Panchbhavi
Lisfranc injuries are commonly missed in the acute setting, largely due to subtle findings that often require weightbearing radiographs or more complex imaging for diagnosis. The long-term consequences of missed injuries are debilitating osteoarthritis of the midfoot, but this may be prevented with appropriate diagnosis and treatment. This case study presents a Lisfranc injury initially diagnosed by gravity stress radiograph. While used for other injuries, there is no literature on the use of gravity stress radiographs for diagnosis of Lisfranc injuries...
February 7, 2017: Curēus
https://www.readbyqxmd.com/read/28343329/stress-fractures-of-the-foot-and-ankle-part-2-site-specific-etiology-imaging-and-treatment-and-differential-diagnosis
#5
Jacob C Mandell, Bharti Khurana, Stacy E Smith
Stress fractures of the foot and ankle are a commonly encountered problem among athletes and individuals participating in a wide range of activities. This illustrated review, the second of two parts, discusses site-specific etiological factors, imaging appearances, treatment options, and differential considerations of stress fractures of the foot and ankle. The imaging and clinical management of stress fractures of the foot and ankle are highly dependent on the specific location of the fracture, mechanical forces acting upon the injured site, vascular supply of the injured bone, and the proportion of trabecular to cortical bone at the site of injury...
March 25, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28333559/technique-tip
#6
Gregory R Waryasz, Stephen Marcaccio, Joseph A Gil
Lisfranc injury fixation or arthrodesis typically involves the reduction and fixation of several tarsometatarsal joints with either screws or a plate and screw constructs. A successful fixation or arthrodesis of the Lisfranc joint requires proper screw placement from the medial cuneiform to the base of the second metatarsal. This is typically done free-hand; however, we describe use of an anterior cruciate ligament guide to help maintain reduction and assist with drill trajectory for more accurate screw or suture button construct placement...
April 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28270861/computed-tomography-derived-bone-density-measurement-in-the-diabetic-foot
#7
Alex Barwick, John Tessier, James Mirow, Xanne Janse de Jonge, Vivienne Chuter
BACKGROUND: The accurate and reliable measurement of foot bone density is challenging and there is currently no gold standard technique. Such measurement is particularly valuable in populations at risk of foot bone pathology such as in those with long term diabetes. With research and development, computed tomography may prove to be a useful tool for this assessment. The aim of this study was to establish the reliability of a novel method of foot bone density measurement in people with diabetes using computed tomography...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28222170/biomechanical-investigation-of-two-plating-systems-for-medial-column-fusion-in-foot
#8
Paul Simons, Theresia Sommerer, Ivan Zderic, Dieter Wahl, Mark Lenz, Hristo Skulev, Matthias Knobe, Boyko Gueorguiev, R Geoff Richards, Kajetan Klos
BACKGROUND: Arthrodesis of the medial column (navicular, cuneiform I and metatarsal I) is performed for reasons such as Charcot arthropathy, arthritis, posttraumatic reconstruction or severe pes planus. However, the complication rate is still high and mainly resulting from inadequate fixation. Special plates, designed for medial column arthrodesis, seem to offer potential to reduce the complication rate. The aim of this study was to investigate biomechanically plantar and dorsomedial fusion of the medial column using two new plating systems...
2017: PloS One
https://www.readbyqxmd.com/read/28195983/management-of-the-relapsed-clubfoot-following-treatment-using-the-ponseti-method
#9
Pooya Hosseinzadeh, Derek M Kelly, Lewis E Zionts
The Ponseti method to treat idiopathic clubfoot deformity has proven to be reliable, and several centers have reported excellent outcomes. Although the method has been dependable in obtaining initial correction of the foot, relapse rates ranging from 26% to 48% have been reported. When a relapsed deformity is detected early, treatment with a short series of manipulations and cast applications followed by resumption of postcorrective bracing may be all that is required to regain and maintain correction. In patients aged >2...
March 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28145956/evaluation-of-first-ray-mobility-in-patients-with-hallux-valgus-using-weight-bearing-ct-and-a-3-d-analysis-system-a-comparison-with-normal-feet
#10
COMPARATIVE STUDY
Tadashi Kimura, Makoto Kubota, Tetsuya Taguchi, Naoki Suzuki, Asaki Hattori, Keishi Marumo
BACKGROUND: Some physicians report that patients with hallux valgus have hypermobility at the tarsometatarsal (TMT) joint of the first ray and 3-dimensional (3-D) deformity. With use of non-weight-bearing and weight-bearing computed tomography (CT), we evaluated the 3-D mobility of each joint of the first ray in feet with hallux valgus compared with normal feet. METHODS: Ten feet of 10 patients with hallux valgus and 10 feet of 10 healthy volunteers with no foot disorders were examined...
February 1, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28114949/individual-headless-compression-screws-fixed-with-three-dimensional-image-processing-technology-improves-fusion-rates-of-isolated-talonavicular-arthrodesis
#11
Mei-Ming Xie, Kang Xia, Hong-Xin Zhang, Hong-Hui Cao, Zhi-Jin Yang, Hai-Feng Cui, Shang Gao, Kang-Lai Tang
BACKGROUND: Screw fixation is a typical technique for isolated talonavicular arthrodesis (TNA), however, no consensus has been reached on how to select most suitable inserted position and direction. The study aimed to present a new fixation technique and to evaluate the clinical outcome of individual headless compression screws (HCSs) applied with three-dimensional (3D) image processing technology to isolated TNA. METHODS: From 2007 to 2014, 69 patients underwent isolated TNA by using double Acutrak HCSs...
January 23, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28103893/open-triple-fusion-versus-tnc-arthrodesis-in-the-treatment-of-mueller-weiss-disease
#12
Hongtao Zhang, Junkun Li, Yusen Qiao, Jia Yu, Yu Cheng, Yan Liu, Chao Gao, Jiaxin Li
BACKGROUND: Mueller-Weiss disease is a rarely diagnosed deformity where the navicular bone undergoes spontaneous osteonecrosis in adults. Until now, there is no widely accepted operative treatment for this unusual disease. We aimed to compare clinical and radiological outcomes between the open triple fusion and talonavicular-cuneiform arthrodesis for Mueller-Weiss disease of stage 4. METHODS: During the period from February 2012 to June 2016, 10 patients (11 feet) suffering from Mueller-Weiss disease of stage 4 were treated by the same senior surgeon...
January 19, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28090416/post-traumatic-arthritis-of-the-tarsometatarsal-joint-complex-a-case-report
#13
Chirag Kapoor, Amit Patel, Maulik Jhaveri, Paresh Golwala
Tarsometatarsal (TMT) arthritis is characterized by instability and pain in the foot. The commonest cause is post-traumatic arthritis. A Lisfranc injury involves the articulation between the medial cuneiform and the base of the second metatarsal, which is considered a keystone to midfoot integrity. Neglected or undertreated injury to the Lisfranc joint complex leads to secondary arthritis and significant disability. We present a case of a young male patient with a two-year-old neglected Lisfranc joint injury and secondary osteoarthritis of the first, second, and fourth TMT joints, which we treated surgically with arthrodesis using screws, with a good functional outcome on final follow-up...
December 9, 2016: Curēus
https://www.readbyqxmd.com/read/28058661/an-old-mismanaged-lisfranc-injury-treated-by-gradual-deformity-correction-followed-by-the-second-stage-internal-fixation
#14
Mehraj D Tantray, Khurshid Kangoo, Asif Nazir, Muzamil Baba, Raja Rameez, Syed Tabish, Syed Shahnawaz
The Lisfranc fracture-dislocation of the foot is uncommon and diagnosis is often missed. The Lisfranc joint involves the articulation between medial cuneiform and base of the second metatarsal and is considered a keystone to structural integrity to the midfoot. The articulation has a stabilization effect on longitudinal and transverse arches of the foot. A neglected or untreated injury to the Lisfranc joint can lead to secondary arthritis and significant morbidity and disability. We present a case of a neglected Lisfranc fracture-dislocation in a 28-year-old female patient who presented 3 months after injury...
April 2017: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/28018093/clinico-radiological-improvement-in-an-immunocompetent-patient-presented-with-scedosporium-apiospermum-osteomyelitis
#15
Rahul Mohan, T S Gopakumar
Scedosporium apiospermum is frequently found as a saprophyte in soil, sewage and contaminated water. Its manifestations in immunocompetent patients are usually localised and in immunodeficient patients, it causes invasive systemic diseases. We are reporting the case of a 40-year-old male, who presented with pain, oedema and multiple discharging sinuses over the lateral aspect of the left foot with history of thorn prick. On examination, there were multiple active sinuses with tenderness and local rise in temperature...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28018081/spontaneous-osteonecrosis-of-navicular-and-talus-sonnt
#16
Raju Vaishya, Virender Kumar, Amit Kumar Agarwal, Vipul Vijay
We describe a rare case of simultaneous and spontaneous osteonecrosis affecting bilateral navicular and talar bones in a young male. On both sides, there was associated symptomatic talonavicular and naviculocuneiform arthritis. The more symptomatic left foot was managed successfully by talonavicular-cuneiform (TNC) arthrodesis and core decompression of talar body. A probable cause of this rare disorder was most likely due to a developmental anomaly in the preaxial ray of the foot. As no literature is currently available for this rare condition, our case report is intended to provide a referral point for future studies in the early diagnosis and management of this condition...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/27989339/anatomic-description-of-the-naviculocuneiform-articulation
#17
Kevin Renner, Jeffrey E McAlister, Melissa M Galli, Christopher F Hyer
The naviculocuneiform articulation is composed of the navicular proximally and the 3 cuneiforms distally. It is not uncommon to perform surgical interventions at this joint for multiple pathologic foot etiologies. To date, no detailed anatomic measurement is available for each cuneiform articulation on the navicular. The purpose of the present study was to present an anatomic description of this complex joint to aid in better surgical understanding and improve surgical outcomes. Ten fresh, frozen, and thawed below-the-knee cadaveric specimens were used for anatomic dissection of the navicular and associated cuneiforms...
January 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27956208/anatomical-evidence-for-functional-diversity-in-the-mesencephalic-locomotor-region-of-primates
#18
Sophie B Sébille, Hayat Belaid, Anne-Charlotte Philippe, Arthur André, Brian Lau, Chantal François, Carine Karachi, Eric Bardinet
The mesencephalic locomotor region (MLR) is a highly preserved brainstem structure in vertebrates. The MLR performs a crucial role in locomotion but also controls various other functions such as sleep, attention, and even emotion. The MLR comprises the pedunculopontine (PPN) and cuneiform nuclei (CuN) but their specific roles are still unknown in primates. Here, we sought to characterise the inputs and outputs of the PPN and CuN to and from the basal ganglia, thalamus, amygdala and cortex, with a specific interest in identifying functional anatomical territories...
February 15, 2017: NeuroImage
https://www.readbyqxmd.com/read/27909671/endoscopic-resection-of-the-tibialis-anterior-tendon-bursa
#19
Tun Hing Lui
The tibialis anterior tendon bursa is located between the tibialis anterior tendon and the medial cuneiform bone and close to the tendon insertion. Bursitis can occur as a result of excessive local friction, infection, arthritides, or direct trauma. Endoscopic resection of the bursa is indicated in case of symptomatic bursitis that is not responding to conservative treatment or infection is suspected. It is contraindicated if there is skin infection at the portal sites. The purpose of this technical note is to describe a minimally invasive approach of endoscopic resection of the tibialis anterior tendon bursa through anterior tibial tendoscopy...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27900541/tendon-transfer-to-unossified-bone-in-a-porcine-model-potential-implications-for-early-tibialis-anterior-tendon-transfers-in-children-with-clubfeet
#20
Matthew A Halanski, Sam Abrams, Rachel Lenhart, Ellen Leiferman, Teresa Kaiser, Emily Pierce, Rachel Rebekah Franklin, Dayton Opel, Kenneth J Noonan, Thomas D Crenshaw
PURPOSE: Tibialis anterior tendon transfers (TATT) are commonly performed in young children following Ponseti casting for clubfeet. The classic TATT involves advancing the tendon through a hole drilled in the ossified cuneiform. The aim of this study was to determine if tendons transferred through unossified bones have untoward effects on subsequent bone development. METHOD: Twenty-five piglets underwent one of five surgical procedures. An 18-gauge needle was then used to place a tunnel through the bony or cartilaginous portion of the calcaneus (through direct visualization) and isolated slips of the flexor digitorum superficialis (FDS) were placed through the tunnels, as determined by surgical procedure...
December 2016: Journal of Children's Orthopaedics
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