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Medial malleolus

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https://www.readbyqxmd.com/read/27902645/effect-of-nerve-stimulation-use-on-the-success-rate-of-ultrasound-guided-subsartorial-saphenous-nerve-block-a-randomized-controlled-trial
#1
Shaylyn H Montgomery, Colleen M Shamji, Grace S Yi, Cynthia H Yarnold, Stephen J Head, Scott C Bell, Stephan K W Schwarz
BACKGROUND AND OBJECTIVES: Ultrasound-guided subsartorial saphenous nerve block is commonly used to provide complete surgical anesthesia of the foot and ankle in combination with a popliteal sciatic nerve block. However, in part owing to its small caliber and absence of a prominent vascular landmark in the subsartorial plane distal to the adductor canal, the saphenous nerve is more difficult to reliably block than the sciatic nerve in the popliteal fossa. Although the saphenous nerve is a sensory nerve only, neurostimulation can be used to elicit a "tapping" sensation on the anteromedial aspect of the lower leg extending toward the medial malleolus...
November 29, 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27900312/posterior-tibial-tendon-displacement-behind-the-tibia-and-its-interposition-in-an-irreducible-isolated-ankle-dislocation-a-case-report-and-literature-review
#2
Alessandro Ortolani, Roberto Bevoni, Alessandro Russo, Maurilio Marcacci, Mauro Girolami
Isolated posteromedial ankle dislocation is a rare condition thanks to the highly congruent anatomical configuration of the ankle mortise, in which the medial and lateral malleoli greatly reduce the rotational movement of the talus, and the strength of the ligaments higher than the malleoli affords protection against fractures. However, other factors, like medial malleolus hypoplasia, laxity of the ligaments, peroneal muscle weakness and previous ankle sprains, could predispose to pure dislocation. In the absence of such factors, only a complex high-energy trauma, with a rotational component, can lead to this event...
July 2016: Joints
https://www.readbyqxmd.com/read/27897183/sensory-thresholds-at-different-sites-of-the-foot-a-valuable-reference-for-neurologic-examinations
#3
J-W Zhang, Q Wang, X-F Wang, M-M Gao, X-P Yun, H-F Wu, Y Hong
STUDY DESIGN: Prospective healthy volunteer study for sensory thresholds. OBJECTIVES: The aim of this study was to test sensory thresholds at different sites of the foot to provide a reference for diagnosis and neurologic classification. SETTING: A university hospital for the research and clinical practice of rehabilitation. METHODS: Thirty healthy volunteers were recruited, and quantitative sensory testing was performed on three sites of the foot (medial malleolus (for the L4 dermatome), dorsum of the foot at the third metatarsal phalangeal joint (for the L5 dermatome) and lateral heel (for the S1 dermatome))...
November 29, 2016: Spinal Cord
https://www.readbyqxmd.com/read/27885101/giant-cell-tumor-of-talus-t-construct-method-of-bone-grafting
#4
Abhijeet B Kadam, Anoop C Dhamangaonkar
: Giant cell tumor (GCT) or osteoclastoma is a benign, locally aggressive tumor with a tendency to recur. Giant cell tumors typically occur in the epiphysis of long bones, including the distal femur and proximal tibia. They are uncommonly found in the small bones of the foot or ankle, and involvement of talus is rare. The authors present a case of GCT of the talar body in a 21-year-old man, which was diagnosed radiologically by the presence of a well-defined osteolytic lesion involving more than half of the talar body with thinning of the cortices...
November 23, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27871101/morphomics-of-the-talus
#5
David Gorman, Ebram Handy, Sikui Wang, Annette L Irwin, Stewart Wang
Previous studies of frontal crash databases reported that ankle fractures are among the most common lower extremity fractures. While not generally life threatening, these injuries can be debilitating. Laboratory research into the mechanisms of ankle fractures has linked dorsiflexion with an increased risk of tibia and fibula malleolus fractures. However, talus fractures were not produced in the laboratory tests and appear to be caused by more complex loading of the joint. In this study, an analysis of the National Automotive Sampling System - Crashworthiness Data System (NASS-CDS) for the years 2004-2013 was conducted to investigate foot-ankle injury rates in front seat occupants involved in frontal impact crashes...
November 2016: Stapp Car Crash Journal
https://www.readbyqxmd.com/read/27762616/surgical-treatment-of-lateral-malleolar-fractures-using-the-compression-cerclage-system
#6
Eren Cansü, Mehmet B Unal, Serkan Gurcan, Fatih Parmaksizoglu
Background Lateral malleolar fractures (Weber type B or OTA 44-B) account for 60% of all ankle fractures. To achieve anatomic restoration, surgical stabilization provides better results than conservative treatment. Various fixation methods are available to treat these fractures; however, the best method is still unknown. Our objectives were to present a new, useful, and efficient surgical technique for stabilizing lateral malleolar fractures and to analyze the outcomes of patients treated with the compression cerclage system...
September 2, 2016: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/27752779/anterior-wrist-and-medial-malleolus-the-optimal-sites-for-tissue-selection-in-electric-death-through-hand-to-foot-circuit-pathway
#7
Guangtao Xu, Ruibing Su, Junyao Lv, Xiaoping Lai, Xianxian Li, Jiayan Wu, Bo Hu, Long Xu, Ruilin Shen, Jiang Gu, Xiaojun Yu
Specific morphological changes may be absent in some cases of electrocution shocked by the voltage of 220 V or lower. In this study, we attempted to demonstrate that the anterior wrist and medial malleolus were the optimal sites with promising and significant changes in electric death through the hand-to-foot circuit pathway. We established an electric shock rat model and observed histopathologic changes in the anterior wrist and medial malleolus. The results showed that the current intensities in the left anterior wrist and right medial malleolus were remarkably higher than those in the other sites, and the nuclei long/short (L/S) axis ratios of the arterial endotheliocyte and the skeletal muscle cell in these two areas were significantly higher than those in other parts of the body...
October 17, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27736722/the-use-of-a-static-measure-to-predict-foot-posture-at-midstance-during-walking
#8
Thomas G McPoil, Jessica Ford, Joel Fundaun, Chelsea Gallegos, Andrew Kinney, Peter McMillan, Jessica Murphy, Elliot Sky, Derrick Torba, Michael Bade
Previous studies have successfully used the longitudinal arch angle (LAA) to assess foot posture, but the measurement consistency and ability of the LAA to predict dynamic foot posture during activity in a variety of foot types have not been evaluated. The purpose of this study was to determine the reliability of the LAA as well as if the clinical method of assessing the LAA could be used to predict the LAA at midstance during walking for supinated, normal, and pronated foot types. The Arch Height Ratio was used to select 35 participants with 12 supinated, 46 normal, and 12 pronated feet...
September 20, 2016: Foot
https://www.readbyqxmd.com/read/27714727/anatomy-of-the-long-peroneal-muscle-of-the-leg
#9
Urszula Bogacka, Dawid Dziedzic, Iulian Komarnitki, Bogdan Ciszek
BACKGROUND: The aim of the work was to perform a morphometric analysis of the long peroneal muscle of the leg and explore the relationship between muscle belly and tendon. MATERIALS AND METHODS: Ten lower limbs (8 right and 2 left) were fixed in formaldehyde and dissected using standard technique. The long peroneal muscle was exposed from the proximal attachment to the top of a lateral malleolus. RESULTS: The tendon was subsequently freed and various measurements were taken...
October 7, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27643671/evaluation-of-the-tibial-nerve-with-shear-wave-elastography-a-potential-sonographic-method-for-the-diagnosis-of-diabetic-peripheral-neuropathy
#10
Atilla Suleyman Dikici, Fethi Emre Ustabasioglu, Sakir Delil, Mecbure Nalbantoglu, Bektas Korkmaz, Selim Bakan, Osman Kula, Nurten Uzun, Ismail Mihmanli, Fatih Kantarci
Purpose To evaluate the value of shear-wave elastography (SWE) in the detection of diabetic peripheral neuropathy (DPN) of the tibial nerve. Materials and Methods This study was approved by the institutional review board, and written informed consent was obtained from all study participants. The study included 20 diabetic patients with DPN (10 men, 10 women), 20 diabetic patients without DPN (eight men, 12 women), and 20 healthy control subjects (nine men, 11 women). The tibial nerve was examined at 4 cm proximal to the medial malleolus with gray-scale ultrasonography and SWE...
September 19, 2016: Radiology
https://www.readbyqxmd.com/read/27642700/-conventional-x-rays-of-ankle-joint-fractures-in-older-patients-are-not-always-predictive
#11
A Jubel, C Faymonville, J Andermahr, S Boxberg, G Schiffer
Background: Ankle fractures are extremely common in the elderly, with an incidence of up to 39 fractures per 100,000 persons per year. We found a discrepancy between intraoperative findings and preoperative X-ray findings. It was suggested that many relevant lesions of the ankle joint in the elderly cannot be detected with plain X-rays. Methods: Complete data sets and preoperative X-rays of 84 patients aged above 60 years with ankle fractures were analysed retrospectively. There were 59 women and 25 men, with a mean age of 69...
September 19, 2016: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/27599433/arthroscopic-anatomy-of-the-ankle-joint
#12
REVIEW
Ronald G Ray
There are a number of variations in the intra-articular anatomy of the ankle which should not be considered pathological under all circumstances. The anteromedial corner of the tibial plafond (between the anterior edge of the tibial plafond and the medial malleolus) can have a notch, void of cartilage and bone. This area can appear degenerative arthroscopically; it is actually a normal variant of the articular surface. The anterior inferior tibiofibular ligament (AITF) can possess a lower, accessory band which can impinge on the anterolateral edge of the talar dome...
October 2016: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/27574254/preoperative-radiography-versus-computed-tomography-for-surgical-planning-for-ankle-fractures
#13
K H Leung, C Xs Fang, T W Lau, F Kl Leung
PURPOSE: To review preoperative radiography and computed tomography (CT) of the ankle in 69 patients who underwent surgery for ankle fractures to determine the value of CT in diagnosis and surgical planning. METHODS: Preoperative radiography and CT of the ankle of 46 women and 23 men aged 17 to 90 (mean, 48.8) years were reviewed. CT was deemed necessary when radiographs showed the following features: (1) comminuted fracture of the medial malleolus involving the tibial plafond, (2) comminuted fracture of the posterior malleolus, (3) presence of loose bodies, and/or (4) suspected Chaput or Volkman fracture fragment...
August 2016: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/27540011/long-term-functional-and-radiographic-outcome-of-a-mobile-bearing-ankle-prosthesis
#14
Yvonne R A Kerkhoff, Nienke M Kosse, Wieneke P Metsaars, Jan Willem K Louwerens
BACKGROUND: Total ankle arthroplasty is an accepted alternative to arthrodesis of the ankle. However, complication and failure rates remain high. Long-term results of the Scandinavian Total Ankle Replacement (STAR) are limited, with variable complication and failure rates observed. This prospective study presents the long-term survivorship and postoperative complications of the STAR prosthesis. METHODS: Between May 1999 and June 2008, 134 primary total ankle arthroplasties were performed using the STAR prosthesis in 124 patients...
December 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27540010/influence-of-surgeon-volume-on-inpatient-complications-cost-and-length-of-stay-following-total-ankle-arthroplasty
#15
Bryce A Basques, Adam Bitterman, Kevin J Campbell, Bryan D Haughom, Johnny Lin, Simon Lee
BACKGROUND: Increased surgeon volume may be associated with improved outcomes following operative procedures. However, there is a lack of information on the effect of surgeon volume on inpatient adverse events and resource utilization following total ankle arthroplasty (TAA). METHODS: A retrospective cohort study of TAA patients was performed using the Nationwide Inpatient Sample (NIS) from 2003 to 2009. High-volume surgeons were considered as those with volume ≥90th percentile of surgeons performing TAA...
October 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27528850/a-biomechanical-comparison-of-pin-configurations-used-for-percutaneous-pinning-of-distal-tibia-fractures-in-children
#16
Justin Brantley, Aditi Majumdar, J Taylor Jobe, Antony Kallur, Christina Salas
BACKGROUND: Percutaneous pin fixation is often used in conjunction with closed-reduction and cast immobilization to treat pediatric distal tibia fractures. The goal of this procedure is to maintain reduction and provide improved stabilization, in effort to facilitate a more anatomic union. We conducted a biomechanical study of the torsional and bending stability of three commonly used pin configurations in distal tibia fracture fixation. METHODS: A transverse fracture was simulated at the metaphyseal/diaphyseal junction in 15 synthetic tibias...
2016: Iowa Orthopaedic Journal
https://www.readbyqxmd.com/read/27502230/interosseous-membrane-window-size-for-tibialis-posterior-tendon-transfer-geometrical-and-mri-analysis
#17
Pablo Wagner, Cristian Ortiz, Omar Vela, Paul Arias, Diego Zanolli, Emilio Wagner
BACKGROUND: Tibialis posterior (TP) tendon transfer through the interosseous membrane is commonly performed in Charcot-Marie-Tooth disease. In order to avoid entrapment of this tendon, no clear recommendation relative to the interosseous membrane (IOM) incision size has been made. OBJECTIVE: Analyze the TP size at the transfer level and therefore determine the most adequate IOM window size to avoid muscle entrapment. METHODS: Eleven lower extremity magnetic resonances were analyzed...
September 2016: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27495945/bone-shape-difference-between-control-and-osteochondral-defect-groups-of-the-ankle-joint
#18
N Tümer, L Blankevoort, M van de Giessen, M P Terra, P A de Jong, H Weinans, G J M Tuijthof, A A Zadpoor
OBJECTIVE: The etiology of osteochondral defects (OCDs), for which the ankle (talocrural) joint is one of the common sites, is not yet fully understood. In this study, we hypothesized that bone shape plays a role in development of OCDs. Therefore, we quantitatively compared the morphology of the talus and the distal tibia between an OCD group and a control group. METHODS: The shape variations of the talus and distal tibia were described separately by constructing two statistical shape models (SSMs) based on the segmentation of the bones from ankle computed tomography (CT) scans obtained from control (i...
August 3, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27398651/the-effects-of-gastrocnemius-soleus-muscle-forces-on-ankle-biomechanics-during-triple-arthrodesis
#19
S Hejazi, G Rouhi, J Rasmussen
This paper presents a finite element model of the ankle, taking into account the effects of muscle forces, determined by a musculoskeletal analysis, to investigate the contact stress distribution in the tibio-talar joint in patients with triple arthrodesis and in normal subjects. Forces of major ankle muscles were simulated and corresponded well with the trend of their EMG signals. These forces were applied to the finite element model to obtain stress distributions for patients with triple arthrodesis and normal subjects in three stages of the gait cycle, i...
February 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/27383880/symptomatic-os-subtibiale-associated-with-chronic-pain-around-the-medial-malleolus-in-a-young-athlete
#20
Alexandar A Iliev, Georgi P Georgiev, Boycho V Landzhov, Svetoslav A Slavchev, Iva N Dimitrova, Wladimir А Ovtscharoff
An os subtibiale is a rare accessory bone located below or behind the medial malleolus. Herein we present a rare case of a painful os subtibiale in a young triathlete who presented with pain, redness and swelling below his left medial malleolus. Plain radiographs and three-dimensional computed tomography revealed a well-defined oval bone distal to the left medial malleolus. After conservative treatment failed, the ossicle was excised in an open surgery with complete resolution of symptoms. This case report emphasizes the need for clinical awareness of different anatomical variations of the bones of the foot...
March 1, 2016: Folia Medica
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