scholarly journals Center of pressure profiles in unilateral compared to bilateral end-stage ankle osteoarthritis patients

2017 ◽  
Vol 35 (12) ◽  
pp. 2749-2754 ◽  
Author(s):  
Jonathan R. Gladish ◽  
Douglas W. Powell ◽  
Lindsey E. Allison ◽  
Robin M. Queen
Keyword(s):  
Center Of Pressure ◽  
Ankle Osteoarthritis ◽  
Pressure Profiles ◽  
End Stage

scholarly journals Clinical Radiographical Outcomes and Complications after a Brand-New Total Ankle Replacement Design through an Anterior Approach: A Retrospective at a Short-Term Follow Up

2021 ◽  
Vol 10 (11) ◽  
pp. 2258
Author(s):  
Massimiliano Mosca ◽  
Silvio Caravelli ◽  
Emanuele Vocale ◽  
Simone Massimi ◽  
Davide Censoni ◽  
...  
Keyword(s):  
Mean Value ◽  
Total Ankle Replacement ◽  
P Value ◽  
Ankle Osteoarthritis ◽  
Ankle Replacement ◽  
Patient Reported ◽  
End Stage ◽  
Term Performance ◽  
Replacement Design

Recently, the progress in techniques and in projecting new prosthetic designs has allowed increasing indications for total ankle replacement (TAR) as treatment for ankle osteoarthritis. This retrospective work comprehended 39 subjects aged between 47 and 79 years old. The patients, observed for at least 12 months (mean follow up of 18.2 ± 4.1 months), have been evaluated according to clinical and radiological parameters, both pre- and post-operatively. The AOFAS and VAS score significantly improved, respectively, from 46.2 ± 4.8 to 93.9 ± 4.1 and from 7.1 ± 1.1 to 0.7 ± 0.5 (p value < 0.05). At the final evaluation, the mean plantarflexion passed from 12.2° ± 2.3° to 18.1° ± 2.4° (p value < 0.05) and dorsiflexion from a pre-operative mean value of 8.7° ± 4.1° to 21.7° ± 5.4° post-operatively (p value < 0.05). This study found that this new total ankle replacement design is a safe and effective procedure for patients effected by end-stage ankle osteoarthritis. Improvements have been demonstrated in terms of range of motion, radiographic parameters and patient-reported outcomes. However, further studies are needed to assess the long-term performance of these prostheses.

3D Assessment in Posttraumatic Ankle Osteoarthritis

2020 ◽  
pp. 107110072096131
Author(s):  
Peter Kvarda ◽  
Lukas Heisler ◽  
Nicola Krähenbühl ◽  
Caspar Samuel Steiner ◽  
Roxa Ruiz ◽  
...  
Keyword(s):  
Ct Scan ◽  
Cone Beam Ct ◽  
Varus Deformity ◽  
Valgus Deformity ◽  
Cone Beam ◽  
Healthy Individuals ◽  
Ankle Osteoarthritis ◽  
Level Of Evidence ◽  
3D Measurements ◽  
End Stage

Introduction: Auto-generated 3-dimensional (3D) measurements based on weightbearing cone-beam computed tomography (CT) scan technology may allow for a more accurate hind- and midfoot assessment. The current study evaluated the reliability and clinical relevance of such measurements in patients with posttraumatic end-stage ankle osteoarthritis. Methods: Seventy-two patients treated at our institution for posttraumatic end-stage ankle osteoarthritis, with available weightbearing conventional radiographs and a cone-beam CT scan, were analyzed. Twenty healthy individuals aged between 40 and 70 years served as controls. Seven variables were measured on weightbearing conventional radiographs (2D) and compared to 3D measurements that were based on reconstructions from weightbearing cone-beam CT scans. The reliability of each measurement was calculated and subgroups formed according to commonly observed deformities. Results: Inter- and intraobserver reliability was superior for 3D compared to 2D measurements. The accuracy of 3D measurements performed on osteoarthritic ankles was similar to 3D measurements performed on healthy individuals. Thirty-three of the 72 included patients (46%) evidenced an inframalleolar compensation of a supramalleolar/intra-articular ankle deformity (78% = varus compensation; 22% = valgus compensation), whereas 24 of those 72 patients (33%) showed no compensation or a further increase of a supramalleolar/intra-articular ankle deformity (67% = varus deformity; 33% = valgus deformity). Conclusion: Auto-generated 3D measurements of the hind- and midfoot were found to be reliable in both healthy individuals and patients with posttraumatic end-stage ankle osteoarthritis. Such measurements may be crucial for a detailed understanding of the location and extent of hindfoot deformities, possibly impacting decision making in the treatment of end-stage ankle osteoarthritis. Level of Evidence: Level III, comparative study.

Validation of the Ankle Osteoarthritis Scale Instrument for Preoperative Evaluation of End-Stage Ankle Arthritis Patients Using Item Response Theory

2019 ◽  
Vol 40 (4) ◽  
pp. 422-429 ◽  
Author(s):  
Guiping Liu ◽  
Alexander C. Peterson ◽  
Kevin Wing ◽  
Trafford Crump ◽  
Alastair Younger ◽  
...  
Keyword(s):  
Item Response Theory ◽  
Item Response ◽  
Ankle Arthrodesis ◽  
Ankle Arthritis ◽  
Response Theory ◽  
Ankle Osteoarthritis ◽  
Differential Item Function ◽  
Ankle Replacement ◽  
End Stage ◽  
Pain Domain

Background: Significant ankle arthritis results in functional limitations and patient morbidity. There is a need to measure symptoms and the impact of interventions on patient’s quality of life using valid and reliable patient-reported measurement instruments. The objective of this research was to validate the Ankle Osteoarthritis Scale instrument in the preoperative setting using factor analysis, item response theory, and differential item function methods. Methods: This research is based on secondary analysis of patients scheduled for ankle arthrodesis or total ankle replacement in Vancouver, Canada. Participants completed the instrument between September 2014 and August 2017. Item response theory was used to estimate item difficulty and discrimination parameters, controlling for study participants’ underlying level of ankle function. Differential item function was examined for sex, age group, and surgery. There were 88 participants. Results: Modification indices suggested that item 10, “walking around the house,” would better fit the pain domain rather than the disability domain. Items in the pain domain displayed a range of discrimination and difficulty. Items in the disability domain exhibited a range of discrimination, though the disability domain had low difficulty. Differential item functioning for sex, age group, and ankle arthrodesis or total ankle replacement appeared to be ignorable. Conclusion: This evaluation of the Ankle Osteoarthritis Scale found the instrument to be a strong measure of the effect of pain and dysfunction among patients with end-stage ankle arthritis, even when removing items 7 and 8, supporting its prior use in numerous clinical studies. Level of Evidence: Level II, prospective comparative study.

Total ankle replacement in patients with end-stage ankle osteoarthritis: Clinical results and kinetic gait analysis

2014 ◽  
Vol 20 (3) ◽  
pp. 195-200 ◽  
Author(s):  
Alejandro Roselló Añón ◽  
Ignacio Martinez Garrido ◽  
Juan Cervera Deval ◽  
Daniel Herrero Mediavilla ◽  
María Sánchez González ◽  
...  
Keyword(s):  
Gait Analysis ◽  
Clinical Results ◽  
Total Ankle Replacement ◽  
Ankle Osteoarthritis ◽  
Ankle Replacement ◽  
End Stage

Computed Tomographic Evaluation of Joint Geometry in Patients With End-Stage Ankle Osteoarthritis

2016 ◽  
Vol 37 (6) ◽  
pp. 644-651 ◽  
Author(s):  
Martin Wiewiorski ◽  
Sebastian Hoechel ◽  
Andrew E. Anderson ◽  
Andrej M. Nowakowski ◽  
James K. DeOrio ◽  
...  
Keyword(s):  
Ankle Osteoarthritis ◽  
Computed Tomographic ◽  
Joint Geometry ◽  
End Stage

Alterations in Gait Initiation Are Present in Those With Posttraumatic Ankle Osteoarthritis: A Pilot Study

2013 ◽  
Vol 29 (3) ◽  
pp. 245-252 ◽  
Author(s):  
Erik A. Wikstrom ◽  
Robert B. Anderson
Keyword(s):  
Motor Control ◽  
Pilot Study ◽  
Postural Control ◽  
Center Of Pressure ◽  
Gait Initiation ◽  
Static Balance ◽  
Control Mechanisms ◽  
Ankle Osteoarthritis ◽  
Sf 36 ◽  
Balance Trials

The purpose of this investigation was to determine if stereotypical patterns of gait initiation are altered in those with posttraumatic ankle osteoarthritis. Ten subjects, five with unilateral ankle osteoarthritis and five uninjured controls, participated. Subjects completed the SF-36 and Ankle Osteoarthritis Scale to quantify self-reported disability as well as 10 dual-limb static stance trials and 10 gait initiation trials with each leg. Center of pressure outcomes were calculated for static balance trials while the peak center of pressure excursions were calculated for each phase of gait initiation. The results indicate greater self-reported disability (P< .05) and worse static postural control (P< .05) in the ankle osteoarthritis group. Nonstereotypical patterns were also observed during the first and third phases of gait initiation in those with ankle osteoarthritis. The results of this pilot study suggest that supraspinal motor control mechanisms may have changed in those with posttraumatic ankle osteoarthritis.

Center of Pressure Symmetry in Individuals with Severe Ankle Osteoarthritis

2015 ◽  
Vol 47 ◽  
pp. 795 ◽  
Author(s):  
Erinn Menninger ◽  
Abigail L. Carpenter ◽  
Daniel Schmitt ◽  
Robin M. Queen
Keyword(s):  
Center Of Pressure ◽  
Ankle Osteoarthritis

Responsiveness and Validity of the SF-36, Ankle Osteoarthritis Scale, AOFAS Ankle Hindfoot Score, and Foot Function Index in End Stage Ankle Arthritis

2012 ◽  
Vol 33 (1) ◽  
pp. 57-63 ◽  
Author(s):  
N. Jane Madeley ◽  
Kevin J. Wing ◽  
Claire Topliss ◽  
Murray J. Penner ◽  
Mark A. Glazebrook ◽  
...  
Keyword(s):  
Criterion Validity ◽  
Ankle Arthritis ◽  
Ankle Osteoarthritis ◽  
Level Of Evidence ◽  
Foot Function Index ◽  
Function Index ◽  
Sf 36 ◽  
Foot Function ◽  
End Stage ◽  
Disease Specific

Background: We examined four commonly used scores, the SF-36, the Ankle Osteoarthritis Scale (AOS), the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle Hindfoot Score, and the Foot Function Index (FFI) to determine their responsiveness and validity. Methods: Patients with end stage ankle arthritis were recruited into a prospective multicenter cohort study and baseline and one year outcome scores were compared. The Standardized Response Mean and Effect Size for the AOS, AOFAS, and FFI were calculated and the three region- or disease-specific scores were compared with the SF-36 to determine their criterion validity. Results: All four scores showed acceptable responsiveness, and when using the validated SF-36 as the standard the three region or disease specific scores all showed similar criterion validity. Conclusion: All four scores are responsive and can be considered for use in this population. The objective component of the AOFAS Ankle Hindfoot Score may make it harder to perform than the other three scores which have subjective components only, and as yet its objective component has not been shown to demonstrate reliability. We recommend use of a purely subjective score such as the Ankle Osteoarthritis Scale or Foot Function Index as the region- or disease-specific score of choice in this population. As the SF-36 shows acceptable responsiveness, using it alone could also be considered. Level of Evidence: II, Prospective Comparative Study

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