Ankle Instability

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Jay Hertel - One of the best experts on this subject based on the ideXlab platform.

Young Uk Park - One of the best experts on this subject based on the ideXlab platform.

Carrie L. Docherty - One of the best experts on this subject based on the ideXlab platform.

  • strength training protocols to improve deficits in participants with chronic Ankle Instability a randomized controlled trial
    Journal of Athletic Training, 2015
    Co-Authors: Emily A Hall, Janet E. Simon, Carrie L. Docherty, Jackie J Kingma, Joanne Klossner
    Abstract:

    Context: Although lateral Ankle sprains are common in athletes and can lead to chronic Ankle Instability (CAI), strength-training rehabilitation protocols may improve the deficits often associated ...

  • Slower nerve conduction velocity in individuals with functional Ankle Instability.
    International journal of sports medicine, 2014
    Co-Authors: Janet E. Simon, Carrie L. Docherty
    Abstract:

    The purpose of this study is to quantify nerve conduction velocity differences in individuals with functional Ankle Instability compared to a “healthy” population. 38 participants ages 18–30 were recruited from a large university with approximately 43 000 students. 19 subjects (9 men and 10 women; age=21.0±1.4 years; height=172.0±9.3 cm; mass=74.4±1 2.4 kg) with symptoms of functional Ankle Instability were in the functional Ankle Instability group. 19 subjects (10 men, 9 women; age=22.0±2.6 years; height=169.8±9.1 cm; mass=69.0±14.8 kg) with “healthy” Ankles were in the control group. Nerve conduction velocity was conducted using one trial at 2 different sites: posterior to the fibular head (fibular), and 10 cm superior/posterior of the first site (popliteal). Nerve conduction velocity (m/sec) was assessed using a SierraWave II system (Cadwell Laboratories; Kennewick, WA). A MANCOVA was performed on the two dependent variables (fibular and popliteal). Covariates included surface temperature of the leg, body mass index, and age. The independent variable was group (functional Ankle Instability and control). The effect of group was significantly related to nerve conduction velocity at the fibular site (F (1, 27)  =16.49, p=0.01) and popliteal site (F (1, 27) =4.51, p=0.01), with responses significantly faster for individuals in the control group than the functional Ankle Instability group. These results indicate that patients with functional Ankle Instability might have damage to the peroneal nerve which results in slower peroneal nerve conduction velocity.

  • Prevalence of Chronic Ankle Instability in High School and Division I Athletes
    Foot & ankle specialist, 2013
    Co-Authors: Leah Tanen, Janet E. Simon, Carrie L. Docherty, Barbara Van Der Pol, John Schrader
    Abstract:

    Objective. The purpose of this study was to determine the prevalence of chronic Ankle Instability among high school and collegiate athletes. Design. Descriptive epidemiological survey. Methods. Athletes from four high schools and a division I university were contacted to participate. For collegiate athletes, a questionnaire packet was distributed during preparticipation physicals. For high school athletes, parental consent was obtained and then questionnaires were distributed during preparticipation physicals, parent meetings, or individual team meetings. All athletes completed the Cumberland Ankle Instability Tool for both their left and right Ankles. Subjects also provided general demographic data and completed the Ankle Instability Instrument regarding history of lateral Ankle sprains and giving way. Athletes were identified as having chronic Ankle Instability if they scored less than 24 on the Cumberland Ankle Instability Tool. Results. Of the 512 athletes who completed and returned surveys, 23.4% were identified as having chronic Ankle Instability. High school athletes were more likely to have chronic Ankle Instability than their collegiate counterparts (P Language: en

  • development of the identification of functional Ankle Instability idfai
    Foot & Ankle International, 2012
    Co-Authors: Janet E. Simon, Matthew Donahue, Carrie L. Docherty
    Abstract:

    Background: Self-reported questionnaires are a common method used in identifying individuals with Ankle Instability. Recently a study illustrated the singular use of any of the most frequently utilized questionnaires failed to significantly predict Ankle stability status. Therefore, the purpose of this article was to present information related to the development of the Identification of Functional Ankle Instability (IdFAI). Methods: Volunteers (n = 278; 125 males, 153 females, 19.8 ± 1.4 years) completed the IdFAI on one occasion. An exploratory factor analysis was conducted with principal axis factoring as the extraction method with varimax rotation. Additionally, a discriminant function analysis was conducted to identify a discrimination score and to evaluate the accuracy of the questionnaire. Results: The factor analysis revealed: factor 1 (four questions) explained 53.7% of the variance, factor 2 (four questions) with an additional 17.4%, and factor 3 (two questions) an additional 6.3%. Overall, thes...

  • Critical Review of Self-Reported Functional Ankle Instability Measures:
    Foot & ankle international, 2011
    Co-Authors: Matthew Donahue, Janet E. Simon, Carrie L. Docherty
    Abstract:

    Background:Since functional Ankle Instability (FAI) lacks a “gold standard” measure, a variety of self-reported Ankle Instability measures have been created. The purpose of this study was to determine which Ankle Instability measure identifies individuals who meet a minimum acceptable criterion for FAI.Methods:Participants volunteered from a large university population which included 242 participants (104 males, 138 females; 21.4 ± 1.4 years). The predictor variables were seven Ankle Instability questionnaires: Ankle Instability Instrument (AII), Ankle Joint Functional Assessment Tool (AJFAT), Chronic Ankle Instability Scale (CAIS), Cumberland Ankle Instability Tool (CAIT), Foot and Ankle Ability Measure (FAAM), Foot and Ankle Instability Questionnaire (FAIQ), and Foot and Ankle Outcome Score (FAOS). The outcome variable (MC_FAI) was created based on the minimum acceptable criteria for FAI. This was established as at least one Ankle sprain and an episode of giving way. Data were modeled using chi-square a...

Kyung Tai Lee - One of the best experts on this subject based on the ideXlab platform.

  • value of stress ultrasound for the diagnosis of chronic Ankle Instability compared to manual anterior drawer test stress radiography magnetic resonance imaging and arthroscopy
    Knee Surgery Sports Traumatology Arthroscopy, 2016
    Co-Authors: Jae Ho Cho, Kyung Tai Lee, Doo Hyung Lee, Hyung Keun Song, Joon Young Bang, Young Uk Park
    Abstract:

    Purpose Clinicians frequently diagnose chronic Ankle Instability using the manual anterior drawer test and stress radiography. However, both examinations can yield incorrect results and do not reveal the extent of Ankle Instability. Stress ultrasound has been reported to be a new diagnostic tool for the diagnosis of chronic Ankle Instability. The purpose of this study was to assess the diagnostic value of stress ultrasound for chronic Ankle Instability compared to the manual anterior drawer test, stress radiography, magnetic resonance imaging (MRI), and arthroscopy.

  • new method of diagnosis for chronic Ankle Instability comparison of manual anterior drawer test stress radiography and stress ultrasound
    Knee Surgery Sports Traumatology Arthroscopy, 2014
    Co-Authors: Kyung Tai Lee, Young Uk Park, Hyuk Jegal, Jong Won Park, Jung Pil Choi, Jin Su Kim
    Abstract:

    Purpose To diagnose chronic Ankle Instability, clinicians frequently use manual anterior drawer test and stress radiography. However, both exams can yield incorrect results and do not reveal the extent of Ankle Instability. The use of stress ultrasound during a manual anterior drawer stress procedure might enable the diagnosis of chronic Ankle Instability.

  • arthroscopic anterior talofibular ligament repair for chronic Ankle Instability with a suture anchor technique
    Orthopedics, 2011
    Co-Authors: Eung Soo Kim, Kyung Tai Lee, Jun Sic Park, Young Koo Lee
    Abstract:

    The goal of this study was to retrospectively evaluate the clinical outcomes of arthroscopic repair for chronic Ankle Instability using a bioabsorbable anchor with 2 sutures. We evaluated the results of 28 Ankles treated with arthroscopic anterior talofibular ligament repair using bioabsorbable anchors with a FiberWire and TigerWire suture (Arthrex, Inc, Naples, Florida) placed on the fibula from March 2008 to January 2009. Average follow-up was 15.9 months (range, 13-25 months). Patients were evaluated using the American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot Ankle score and stress radiographs. Mean AOFAS hindfoot Ankle score was 92.48 ± 6.14 at last follow-up compared to the mean preoperative score of 60.78 ± 16.38 (P=.041). Mean postoperative anterior draw test score difference between 2 Ankles was 0.61 ± 0.75 compared to the mean preoperative score difference of 3.59 ± 0.68 (P=.00). There was a 14% complication rate, including 3 cases of portal site irritation and 1 case of superficial infection. Stress radiographs revealed 3 cases of anterior displacement >3 mm compared to the other side. All patients returned to their previous activity level.Arthroscopic ligament reconstruction for chronic lateral Ankle Instability using suture anchors is effective in returning patients to their preinjury function levels. Good clinical results were obtained with some minor complications. This minimally invasive technique is a reasonable alternative to other open surgical procedures for chronic Ankle Instability.

Kyung Rok Park - One of the best experts on this subject based on the ideXlab platform.

  • changes in balancing ability of athletes with chronic Ankle Instability after foot orthotics application and rehabilitation exercises
    Annals of Rehabilitation Medicine, 2013
    Co-Authors: Tae Ho Jung, Kyung Rok Park
    Abstract:

    OBJECTIVE: To compare the effect of foot orthotics and rehabilitation exercises by assessing balancing ability and joint proprioception in athletes who have chronic Ankle Instability. METHODS: Forty-one athletes who visited hospitals due to chronic Ankle Instability were randomly assigned to two groups. One group had Ankle rehabilitation exercises while the other group had the same rehabilitation exercises as well as foot orthotics. Joint position sense of the Ankle joint was examined by using an isokinetic exercise machine. Balancing abilities categorized into static, dynamic and functional balance abilities were evaluated by using computerized posturography. We tested the subjects before and after the four-week rehabilitation program. RESULTS: After the four-week treatment, for joint reposition sense evaluation, external 75% angle evaluation was done, revealing that the group with the application of foot orthotics improved by -1.07±1.64 on average, showing no significant difference between the two groups (p>0.05). Static, dynamic and functional balancing abilities using balance masters were evaluated, revealing that the two groups improved in some items, but showing no significant difference between them (p>0.05). CONCLUSION: This study found that athletes with chronic Ankle Instability who had foot orthotics applied for four weeks improved their proprioceptive and balancing abilities, but did not show additional treatment effects compared with rehabilitation exercise treatment.

  • changes in balancing ability of athletes with chronic Ankle Instability after foot orthotics application and rehabilitation exercises
    Annals of Rehabilitation Medicine, 2013
    Co-Authors: Hong Jae Lee, Tae Ho Jung, Kil Byung Lim, Dug Young Kim, Kyung Rok Park
    Abstract:

    Objective To compare the effect of foot orthotics and rehabilitation exercises by assessing balancing ability and joint proprioception in athletes who have chronic Ankle Instability. Methods Forty-one athletes who visited hospitals due to chronic Ankle Instability were randomly assigned to two groups. One group had Ankle rehabilitation exercises while the other group had the same rehabilitation exercises as well as foot orthotics. Joint position sense of the Ankle joint was examined by using an isokinetic exercise machine. Balancing abilities categorized into static, dynamic and functional balance abilities were evaluated by using computerized posturography. We tested the subjects before and after the four-week rehabilitation program. Results After the four-week treatment, for joint reposition sense evaluation, external 75% angle evaluation was done, revealing that the group with the application of foot orthotics improved by -1.07±1.64 on average, showing no significant difference between the two groups (p>0.05). Static, dynamic and functional balancing abilities using balance masters were evaluated, revealing that the two groups improved in some items, but showing no significant difference between them (p>0.05). Conclusion This study found that athletes with chronic Ankle Instability who had foot orthotics applied for four weeks improved their proprioceptive and balancing abilities, but did not show additional treatment effects compared with rehabilitation exercise treatment.

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