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Ankle instability

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https://www.readbyqxmd.com/read/28226430/postural-flexibility-during-quiet-standing-in-healthy-elderly-and-patients-with-parkinson-s-disease
#1
Kazuyuki Matsuda, Yasuyuki Suzuki, Naoya Yoshikawa, Tomohisa Yamamoto, Ken Kiyono, Takao Tanahashi, Takuyuki Endo, Kei Fukada, Kunihiko Nomura, Saburo Sakoda, Taishin Nomura, Kazuyuki Matsuda, Yasuyuki Suzuki, Naoya Yoshikawa, Tomohisa Yamamoto, Ken Kiyono, Takao Tanahashi, Takuyuki Endo, Kei Fukada, Kunihiko Nomura, Saburo Sakoda, Taishin Nomura, Kei Fukada, Naoya Yoshikawa, Tomohisa Yamamoto, Takuyuki Endo, Kunihiko Nomura, Taishin Nomura, Kazuyuki Matsuda, Ken Kiyono, Takao Tanahashi, Saburo Sakoda, Yasuyuki Suzuki
Postural instability is one of the predominant symptoms of Parkinson's disease (PD). Despite its significant impact on the deterioration in quality of life in PD patients, mechanistic causes of the instability have not been clarified. Joint inflexibility at ankle and hip joints might be such a major cause, leading to small variability in the center of pressure (CoP) during quiet stance. However, this conjecture is still controversial. Thus, quantitative characterization of CoP patterns during quiet stance in PD patients remains a matter of research...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28214465/acute-and-chronic-lateral-ankle-instability-diagnosis-management-and-new-concepts
#2
Rachel Shakked, Steven Sheskier
Lateral ankle instability is a common entity that can result in degenerative arthritis if left untreated. Acute ligament injuries should primarily be treated nonoperatively with a course of physical therapy and functional bracing. Chronic ankle instability is defined as mechanical or functional and can be diagnosed using a combination of history, physical examination, stress radiographs, and magnetic resonance imaging. After failure of nonoperative treatment, surgical treatment with anatomic ligament repair and inferior extensor retinaculum augmentation has the best clinical outcomes...
January 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/28210052/effects-of-spiral-taping-on-proprioception-in-subjects-with-unilateral-functional-ankle-instability
#3
Young-Sook Bae
[Purpose] The Purpose of this study was to investigate the effects of spiral taping on proprioception in functional ankle instability. [Subjects and Methods] Thirty-five participants in this study had discomfort in only one ankle and Cumberland ankle instability score of ≤23. ST was applied to the unstable ankle, and proprioception was measured baseline and 30 min later. Proprioception was measured using the active joint angle reproduction test. [Results] Plantar flexions of 10° (ES, 0.303) and 20° (ES, 1...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28199924/hip-ankle-coordination-during-gait-in-individuals-with-chronic-ankle-instability
#4
Sheng-Che Yen, Kevin K Chui, Marie B Corkery, Elizabeth A Allen, Caitlin M Cloonan
Individuals with chronic ankle instability (CAI) may have sensorimotor impairments that affect control at the hip in addition to the ankle. The purpose of this study was to compare hip-ankle coordination and coordination variability between individuals with CAI and healthy individuals during walking. Ten healthy subjects and 10 subjects with CAI were recruited to walk on a treadmill. Hip-ankle coordination was quantified using vector coding, and coordination variability was quantified using coefficient of correspondence...
February 7, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28199903/the-effect-of-variable-rest-intervals-and-chronic-ankle-instability-on-triplanar-ankle-motion-during-performance-of-the-star-excursion-balance-test
#5
Yong Ung Kwon, D S Blaise Williams
Inadequate rest intervals may contribute to impaired performance during functional tests. However, the effect of different rest intervals on performance of the SEBT in individuals with and without CAI is not known. Our purposes were to determine whether different rest intervals impact ankle kinematics during the SEBT and whether there differences between those two populations. 24 controls and 24 CAI completed 3 trials in 3 reach directions (anteromedial; AM, medial; M, posteromedial; PM). The order of rest intervals and reach distance were randomized and counterbalanced...
February 12, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28187890/evaluation-of-a-smartphone-based-assessment-system-in-subjects-with-chronic-ankle-instability
#6
Ya-Lan Chiu, Yi-Ju Tsai, Chueh-Ho Lin, You-Ruei Hou, Wen-Hsu Sung
BACKGROUND: Ankle sprain is the most common sports-related injury, and approximately 80% of patients studied suffered recurrent sprains. These repeated ankle injuries could cause chronic ankle instability, a decrease in sports performance, and a decrease in postural control ability. At the present time, smartphones have become very popular and powerful devices, and smartphone applications (apps) that have been shown to have good validity have been designed to measure human body motion...
February 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28183211/3d-optical-investigation-of-2-nail-systems-used-in-tibiotalocalcaneal-arthrodesis
#7
Julia Evers, Martin Lakemeier, Dirk Wähnert, Martin Schulze, Martinus Richter, Michael J Raschke, Sabine Ochman
BACKGROUND: Although retrograde intramedullary nails for tibiotalocalcaneal arthrodesis (TTCA) are an established fixation method, few studies have evaluated the stability of the available nail systems. The purpose of this study was to compare biomechanically the primary stability of 2 nail-systems, A3 (Small Bone Innovations) and HAN (Synthes), in human cadavers and analyze the exact point of instability in TTCA by means of optical measurement. METHODS: In 6 pairs of lower legs (n = 12) of fresh-frozen human cadavers with osteoporotic bone structure, bone mineral density (BMD) was determined...
February 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28182859/radiographic-study-of-pes-planovarus
#8
Janic Aebi, Monika Horisberger, Arno Frigg
BACKGROUND: Depending on the direction of the subtalar joint, a foot deformity generally tends towards pronation (pes planovalgus) or supination (pes cavovarus). However, the combination of hindfoot varus and flat midfoot/forefoot (pes planovarus) is an exception to this rule. Pes planovarus has so far only been referred to in connection with Müller-Weiss disease and congenital disease. We diagnosed pes planovarus in otherwise healthy patients without these diseases. METHODS: Forty patients with 54 symptomatic feet who were treated between August 2012 and July 2016 were included (mean age, 44...
February 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28167191/effect-of-cognitive-task-on-postural-control-of-the-patients-with-chronic-ankle-instability-during-single-and-double-leg-standing
#9
Zeinab Shiravi, Saeed Talebian Moghadam, Mohammad Reza Hadian, Gholamreza Olyaei
OBJECTIVE: The aim of this study was to investigate the effect of a cognitive task on standing postural control of the injured and non-injured leg of athletes with chronic ankle instability. METHODS: Postural stability was measured by center of pressure parameters while chronic ankle instability patients (n = 8) randomly performed single and double leg standing in isolation or concurrently with a digit-backward cognitive task. RESULTS: After performing a concurrent cognitive task, anteroposterior sway significantly decreased in injured leg (P < 0...
January 2017: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/28167064/syndesmosis-stabilisation-screws-versus-flexible-fixation
#10
REVIEW
Matthew C Solan, Mark S Davies, Anthony Sakellariou
Orthopedic surgery is not short of situations where there is controversy regarding optimum management. Treating ankle syndesmosis injuries is an example where practice varies widely and there are many questions that remain unsatisfactorily answered. When addressing the type of syndesmosis stabilization that is required it is essential to ascertain the extent of instability. Only then can a logical approach to restoring the ankle mortise be achieved. Fixation of fibula shaft fractures and posterior malleolus fractures can restore sufficient stability to render syndesmosis stabilization unnecessary...
March 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28167062/treatment-of-peripheral-talus-fractures
#11
REVIEW
John R Shank, Stephen K Benirschke, Michael P Swords
Peripheral talus fractures include injuries to the lateral process, posteromedial talar body, and talar head. These injuries are rare and are often missed. Nonunion with conservative treatment is high and excision can lead to joint instability, rapid arthrosis, and earlier need for arthrodesis. Open reduction internal fixation of most peripheral talus fractures is critical to achieving a good outcome. Open reduction leads to more rapid union and ability to mobilize the ankle and subtalar joints, quicker revascularization of the talus, and lower rates of arthrosis...
March 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28160934/arthroscopic-quantification-of-syndesmotic-instability-in-a-cadaveric-model
#12
Ross Feller, Todd Borenstein, Amanda J Fantry, Roy Bradley Kellum, Jason T Machan, Florian Nickisch, Brad Blankenhorn
PURPOSE: To investigate whether arthroscopy or stress radiography can identify instability resulting from single-ligament injury of the ankle syndesmosis and to determine whether either modality is capable of differentiating between various levels of ligament injury. METHODS: Syndesmotic/deltoid ligament sectioning was performed in 10 cadaver legs. Arthroscopic evaluation and fluoroscopic stress testing were completed after each sectioning. In group 1 (n = 5), sectioning began with anteroinferior tibiofibular ligament (AITFL), then interosseous membrane (IOM), posteroinferior tibiofibular ligament (PITFL), and deltoid...
February 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28159052/complex-ankle-arthrodesis-with-step-cut-osteotomy-in-charcot-arthropathy-with-bone-loss
#13
Sean Booth, Moez Ballal, Anand Pillai
We report a case of a complex limb salvage ankle arthrodesis in a patient with Charcot arthropathy. A step-cut osteotomy was performed in order to tackle the issues of anterior tibial bone loss; worsening leg length discrepancy; soft tissue contraction; joint instability and high risk of non-union. The construct formed by the step-cut allowed for the preservation of good bone stock; avoidance of further limb shortening; increased torsional stability and increased surface area for bony union. This resulted in a patient with a stable, plantigrade foot appropriate for footwear...
March 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28137476/establishing-the-minimal-clinical-important-difference-and-minimal-detectable-change-for-the-cumberland-ankle-instability-tool
#14
Cynthia J Wright, Shelley W Linens, M Spencer Cain
OBJECTIVE: The objective was to establish the minimal detectable change (MDC) and minimal clinically important different (MCID) for the Cumberland Ankle Instability Tool (CAIT) in a population with chronic ankle instability (CAI). DESIGN: Experimental cohort. SETTING: Laboratory. PARTICIPANTS: A convenience sample of fifty participants with CAI participated (12 males, 38 females, monthly giving-way=5.84±12.54). CAI inclusion criteria included a history of an ankle sprain, recurrent episodes of giving way, and a CAIT score ≤ 25...
January 27, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28125270/response-to-tendon-vibration-questions-the-underlying-rationale-of-proprioceptive-training
#15
Anat Vilnai Lubetzky, Sarah Westcott McCoy, Robert Price, Deborah Kartin
CONTEXT:  Proprioceptive training on compliant surfaces is used to rehabilitate and prevent ankle sprains. The ability to improve proprioceptive function via such training has been questioned. Achilles tendon vibration is used in motor-control research as a form of proprioceptive stimulus. Using measures of postural steadiness with nonlinear measures to elucidate control mechanisms, tendon vibration can be applied to investigate the underlying rationale of proprioceptive training. OBJECTIVE:  To test whether the effect of vibration on young adults' postural control depended on the support surface...
January 26, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28114974/a-misdiagnosed-case-of-osteoid-osteoma-of-the-talus-a-case-report-and-literature-review
#16
Huan He, Hailin Xu, Hao Lu, Yu Dang, Wei Huang, Qing Zhang
BACKGROUND: Osteoid osteoma (OO) is a common benign bone tumour that is rarely found in the talus. Its nidus is difficult to detect on early imaging. The atypical symptoms of OO and the presence of concurrent trauma or sports injuries may lead to misdiagnosis and delayed treatment. We herein analyse a case of misdiagnosis of OO of the talus and discuss how to improve the early diagnosis of this rare lesion, thereby permitting rapid treatment. CASE PRESENTATION: A 23-year-old man with a history of left ankle sprains and chronic pain was diagnosed with another ankle sprain and managed conservatively based on normal X-ray findings...
January 23, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28111997/effect-of-elastic-bandage-on-postural-control-in-subjects-with-chronic-ankle-instability-a-randomised-clinical-trial
#17
Isabel M Alguacil-Diego, Carlos de-la-Torre-Domingo, Antonio López-Román, Juan Carlos Miangolarra-Page, Francisco Molina-Rueda
PURPOSE: To report the immediate and prolonged (one week) effects of elastic bandage (EB) on balance control in subjects with chronic ankle instability. MATERIAL AND METHODS: Twenty-eight individuals successfully completed the study protocol, of whom 14 were randomly assigned to the EB group (7 men, 7 women) and 14 were assigned to the non-standardised tape (NST) group (9 men, 5 women). To objectively measure postural sway we used computerised dynamic posturography (CDP) with sensory organisation test (SOT) and unilateral stance (US) test...
January 23, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28110390/operative-treatment-of-lateral-ligament-instability
#18
REVIEW
Rachel J Shakked, Sydney Karnovsky, Mark C Drakos
PURPOSE OF REVIEW: Ankle sprains, which account for 40% of sports injuries in the USA, can lead to chronic ankle instability. Chronic ankle instability can be classified as functional, mechanical, or a combination of both and is diagnosed using a combination of a physical exam, an MRI, and stress radiographs. This review focuses on different approaches to treatment, including non-operative and operative techniques, of chronic ankle instability, including reviewing traditional procedures as well as more novel and newer techniques...
January 21, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28087215/surgical-outcome-of-posterior-ankle-impingement-syndrome-with-concomitant-ankle-disorders-treated-simultaneously-in-patient-engaged-in-athletic-activity
#19
Wataru Miyamoto, Shinya Miki, Hirotaka Kawano, Masato Takao
BACKGROUND: It is unclear whether simultaneous surgery for posterior ankle impingement syndrome (PAIS) and concomitant ankle disorders, such as anterior ankle impingement syndrome (AAIS), lateral ankle instability (LAI), and osteochondral lesion of the talus (OLT), allows for early return to athletic activity. METHODS: Ninety-seven patients who engaged in athletic activity (mean age 27 [range 18-43] years) and were treated by a hindfoot endoscopic approach for PAIS alone or simultaneously for PAIS and concomitant ankle disorders were included in this study...
January 10, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28067582/the-relationship-of-hip-muscle-performance-to-leg-ankle-and-foot-injuries-a-systematic-review
#20
Nili Steinberg, Gali Dar, Martin Dunlop, James Edmund Gaida
OBJECTIVES: Hip control affects movement and muscle firing patterns in the leg, ankle and foot, and may contribute to overuse injuries. Muscle performance can be measured as strength, endurance or muscle activation patterns. Our objective was to systematically review whether hip muscle performance is associated with leg, ankle and foot injuries. DATA SOURCES: A structured and comprehensive search of six medical literature databases was combined with forward and backward citation tracking (AMED, CINAHL, EMBASE, Medline, Scopus and SportDiscus)...
January 19, 2017: Physician and Sportsmedicine
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