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Lateral ankle instability

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https://www.readbyqxmd.com/read/27904801/midfoot-and-forefoot-involvement-in-lateral-ankle-sprains-and-chronic-ankle-instability-part-1-anatomy-and-biomechanics
#1
John J Fraser, Mark A Feger, Jay Hertel
: The modern human foot is the culmination of more than five million years of evolution. The ankle-foot complex absorbs forces during loading, accommodates uneven surfaces, and acts as a lever for efficient propulsion. The ankle-foot complex has six independent functional segments that should be understood for proper assessment and treatment of foot and ankle injuries: the shank, rearfoot, midfoot, lateral forefoot, and the medial forefoot. The compliance of the individual segments of the foot is dependent on velocity, task, and active and passive coupling mechanisms within each of the foot segments...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27899356/donor-site-morbidity-after-lateral-ankle-ligament-reconstruction-using-the-anterior-half-of-the-peroneus-longus-tendon-autograft
#2
Chul Hyun Park, Woo-Chun Lee
BACKGROUND: The anterior half of the peroneus longus tendon (AHPLT) has been reported to be an effective autograft for ligament reconstruction with respect to strength and safety. However, there is little information regarding donor site morbidity after harvesting the AHPLT. Furthermore, to the best of our knowledge, there has not been a study on the isokinetic evaluation of ankle plantar flexion and eversion after AHPLT harvesting. PURPOSE: To evaluate the clinical and radiographic results after lateral ankle ligament reconstruction using the AHPLT...
November 29, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27888852/medial-sided-ankle-pain-deltoid-ligament-and-beyond
#3
REVIEW
Julia Crim
Abnormalities of the medial ligaments and posterior tibial tendon can occur because of acute injury or chronic instability or malalignment. Medial ankle injuries may occur because of pronation or supination-external rotation injuries. Deltoid ligament injuries have a significant impact on lateral ankle instability but can be overlooked in patients with lateral ligament injuries. Posterior tibial tendon dysfunction is usually associated with spring ligament or flexor retinaculum injury. Tarsal tunnel syndrome, accessory flexor muscles, and subtalar coalition should be considered as well as ligament and tendon tears in differential diagnosis of chronic medial ankle pain...
February 2017: Magnetic Resonance Imaging Clinics of North America
https://www.readbyqxmd.com/read/27871968/lateral-ligament-reconstruction-procedures-for-the-ankle
#4
REVIEW
Yves Tourné, Christian Mabit
Capsule/ligament lesions of the lateral compartment of the ankle lead to lateral laxity, which is a prime contributor to chronic ankle instability. Lateral ligament reconstruction stabilizes the joint. Exhaustive preoperative clinical and paraclinical work-up is essential. The present article classifies, presents and criticizes the main techniques in terms of long-term stabilization and reduction of osteoarthritis risk. Anatomic ligament repair with reinforcement (mainly extensor retinaculum) or anatomic ligament reconstruction are the two recommended options...
November 18, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27831747/neuromuscular-alterations-after-ankle-sprains-an-animal-model-to-establish-causal-links-after-injury
#5
Lindsey K Lepley, Patrick O McKeon, Shane G Fitzpatrick, Catherine L Beckemeyer, Timothy L Uhl, Timothy A Butterfield
CONTEXT:  The mechanisms that contribute to the development of chronic ankle instability are not understood. Investigators have developed a hypothetical model in which neuromuscular alterations that stem from damaged ankle ligaments are thought to affect periarticular and proximal muscle activity. However, the retrospective nature of these studies does not allow a causal link to be established. OBJECTIVE:  To assess temporal alterations in the activity of 2 periarticular muscles of the rat ankle and 2 proximal muscles of the rat hind limb after an ankle sprain...
November 10, 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27814667/assessment-of-relationships-between-joint-motion-quality-and-postural-control-in-patients-with-chronic-ankle-joint-instability
#6
Dawid Bączkowicz, Krzysztof Falkowski, Edyta Majorczyk
Study Design Controlled laboratory study, cross sectional. Background Lateral ankle sprains are among the most common injuries encountered during athletic participation. Following the initial injury there is an alarmingly high risk of re-injury and development of chronic ankle instability (CAI), which is dependent on a combination of factors, including sensorimotor deficits and changes in the biomechanical environment of the ankle joint. Objective To evaluate CAI-related disturbances in arthrokinematic motion quality and postural control and the relationships between them...
November 4, 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27738709/-lateral-instability-of-the-upper-ankle-joint
#7
N Harrasser, K Eichelberg, F Pohlig, H Waizy, A Toepfer, R von Eisenhart-Rothe
Because of their frequency, ankle sprains are of major clinical and economic importance. The simple sprain with uneventful healing has to be distinguished from the potentially complicated sprain which is at risk of transition to chronic ankle instability. Conservative treatment is indicated for the acute, simple ankle sprain without accompanying injuries and also in cases of chronic instability. If conservative treatment fails, good results can be achieved by anatomic ligament reconstruction of the lateral ankle ligaments...
October 13, 2016: Der Orthopäde
https://www.readbyqxmd.com/read/27726748/ct-and-mr-imaging-of-the-postoperative-ankle-and-foot
#8
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/27709036/modified-arthroscopic-brostrom-procedure-with-bone-tunnels
#9
Tun Hing Lui
The open anatomic repair of the anterior talofibular and calcaneofibular ligaments (modified Brostrom procedure) is widely accepted as the standard surgical stabilization procedure for lateral ankle instability that does not respond to conservative measures. Arthroscopic Brostrom procedures with a suture anchor have been reported to achieve both anatomic repair of the lateral ankle ligaments and management of the associated intra-articular lesions. However, the complication rates are higher than open Brostom procedures...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27706549/a-multivariate-assessment-of-clinical-contributions-to-the-severity-of-perceived-dysfunction-measured-by-the-cumberland-ankle-instability-tool
#10
A Rosen, J Ko, C Brown
Chronic ankle instability is a common pathological consequence of ankle sprains. However, screening tools which assess self-reported dysfunction offer little insight into clinical factors which may be useful to improve deficits. The purpose of this study was to identify factors that contribute most to self-reported dysfunction. 93 individuals completed the Cumberland Ankle Instability Tool (CAIT), active range of motion, dynamic postural stability assessments, and an arthrometer inversion stress test to assess lateral ankle laxity and stiffness...
October 5, 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27692587/arthroscopic-anatomical-reconstruction-of-the-lateral-ankle-ligaments-a-technical-simplification
#11
R Lopes, C Decante, L Geffroy, K Brulefert, T Noailles
Anatomical reconstruction of the lateral ankle ligaments has become a pivotal component of the treatment strategy for chronic ankle instability. The recently described arthroscopic version of this procedure is indispensable to ensure that concomitant lesions are appropriately managed, yet remains technically demanding. Here, we describe a simplified variant involving percutaneous creation of the calcaneal tunnel for the distal attachment of the calcaneo-fibular ligament. The rationale for this technical stratagem was provided by a preliminary cadaver study that demonstrated a correlation between the lateral malleolus and the distal footprint of the calcaneo-fibular ligament...
September 27, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27681857/biomechanical-analysis-of-the-individual-ligament-contributions-to-syndesmotic-stability
#12
Thomas O Clanton, Brady T Williams, Jonathon D Backus, Grant J Dornan, Daniel J Liechti, Scott R Whitlow, Adriana J Saroki, Travis Lee Turnbull, Robert F LaPrade
BACKGROUND: Biomechanical data and contributions to ankle joint stability have been previously reported for the individual distal tibiofibular ligaments. These results have not yet been validated based on recent anatomic descriptions or using current biomechanical testing devices. METHODS: Eight matched-pair, lower leg specimens were tested using a dynamic, biaxial testing machine. The proximal tibiofibular joint and the medial and lateral ankle ligaments were left intact...
September 28, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27676145/is-there-a-relationship-between-bone-morphology-and-injured-ligament-on-imaging-studies-and-laxity-on-ankle-stress-radiographs
#13
S Y Lee, S-S Kwon, M S Park, M K Chung, K B Kim, S Koo, K M Lee
This study aimed to investigate the relationship between bone morphology and injured ligaments on imaging studies and laxity on ankle stress radiographs in patients with lateral ankle instability. In total, 115 patients who had undergone ankle MRI, ankle radiography, and stress radiography were included. Distal tibial articular surface angle, bimalleolar tilt, medial and lateral malleolar relative length, medial malleolar slip angle, anterior inclination of the tibia, and fibular position were measured on ankle radiographs...
December 2016: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/27672576/lateral-subtalar-dislocation-case-report-and-review-of-the-literature
#14
Ewout S Veltman, Ernst Ja Steller, Philippe Wittich, Jort Keizer
A case of complicated lateral subtalar dislocation is presented and the literature concerning this injury is reviewed. Subtalar joint dislocations are rare and often the result of a high-energy trauma. Complications include avascular necrosis of the talus, infection, posttraumatic osteoarthritis requiring arthrodesis and chronic subtalar instability. Negative prognostic factors include lateral and complicated dislocations, total talar extrusions, and associated fractures. A literature search was performed to identify studies describing outcome after lateral subtalar joint dislocation...
September 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/27662790/ankle-dorsiflexion-range-of-motion-influences-lateral-step-down-test-scores-in-individuals-with-chronic-ankle-instability
#15
Terry L Grindstaff, Nadyne Dolan, Sam K Morton
OBJECTIVES: To determine differences in ankle dorsiflexion range of motion (ROM) between three groups of individuals with chronic ankle instability (CAI) based on Lateral Step Down Test quality of movement. The secondary purpose was to quantify the relationship between ankle dorsiflexion ROM and Lateral Step Down Test scores. DESIGN: Descriptive laboratory study. SETTING: University research laboratory. PARTICIPANTS: Fifty-nine participants with CAI...
July 29, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27639218/postural-stabilization-after-single-leg-vertical-jump-in-individuals-with-chronic-ankle-instability
#16
Guilherme S Nunes, Marcos de Noronha
OBJECTIVES: To investigate the impact different ways to define reference balance can have when analysing time to stabilization (TTS). Secondarily, to investigate the difference in TTS between people with chronic ankle instability (CAI) and healthy controls. DESIGN: Cross-sectional study. SETTING: Laboratory. PARTICIPANTS: Fifty recreational athletes (25 CAI, 25 controls). MAIN OUTCOME MEASURES: TTS of the center of pressure (CoP) after maximal single-leg vertical jump using as reference method the single-leg stance, pre-jump period, and post-jump period; and the CoP variability during the reference methods...
August 1, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27638269/the-all-inside-arthroscopic-brostr%C3%A3-m-procedure-with-additional-suture-anchor-augmentation-a-prospective-study-of-45-consecutive-patients
#17
James M Cottom, Joseph S Baker, Phillip E Richardson
Lateral ankle sprains are a common injury that typically respond well to nonoperative therapy. When nonoperative therapy fails and patients develop chronic lateral ankle instability, they become candidates for surgical repair. The present study examined 45 consecutive patients (45 ankles) with chronic lateral ankle instability who underwent arthroscopic Broström repair using a double-row suture anchor construct. The 45 patients (27 females and 18 males) were followed up for a mean of 14 (range 12 to 20) months...
September 21, 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27626836/muscle-activation-during-landing-before-and-after-fatigue-in-individuals-with-or-without-chronic-ankle-instability
#18
Kathryn A Webster, Brian G Pietrosimone, Phillip A Gribble
CONTEXT: Ankle instability is a common condition in physically active individuals. It often occurs during a jump landing or lateral motion, particularly when participants are fatigued. OBJECTIVE: To compare muscle activation during a lateral hop prefatigue and postfatigue in individuals with or without chronic ankle instability (CAI). DESIGN: Cross-sectional study. SETTING: Sports medicine research laboratory. PATIENTS OR OTHER PARTICIPANTS: A total of 32 physically active participants volunteered for the study...
August 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27623732/comparison-of-all-inside-arthroscopic-and-open-techniques-for-the-modified-brostr%C3%A3-m-procedure-for-ankle-instability
#19
Eui Dong Yeo, Kyung-Tai Lee, Il-Hoon Sung, Sun Geun Lee, Young Koo Lee
BACKGROUND: No reported study has compared clinical and radiologic outcomes between an all-inside arthroscopic modified Broström operation (MBO) and an open MBO. The purpose of this study was to compare clinical and radiologic outcomes of all-inside arthroscopic and open MBOs. METHODS: From August 2012 to July 2014, 48 patients were included. They were divided into 2 groups: all-inside arthroscopic MBO (25 patients) and open MBO (23 patients). The American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot score, visual analog scale (VAS) score, and Karlsson score were used to evaluate clinical outcomes...
October 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27614823/a-biomechanical-comparison-of-3-different-arthroscopic-lateral-ankle-stabilization-techniques-in-36-cadaveric-ankles
#20
James M Cottom, Joseph S Baker, Phillip E Richardson, Jared M Maker
Arthroscopic lateral ankle stabilization has become an increasingly popular option among foot and ankle surgeons to address lateral ankle instability, because it combines a modified Broström-Gould procedure with the ability to address any intra-articular pathologic findings at the same session. The present study evaluated 3 different constructs in a cadaveric model. Thirty-six fresh frozen cadaver limbs were used, and the anterior talofibular ligament was identified and sectioned. The specimens were then placed into 1 of 3 groups...
September 7, 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
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