Ankle Sensorimotor Control and Eversion Strength after Acute Ankle Inversion Injuries

1998 ◽  
Vol 26 (1) ◽  
pp. 72-77 ◽  
Author(s):  
Lars Konradsen ◽  
Susanne Olesen ◽  
Henrik M. Hansen
Keyword(s):  
Sensorimotor Control ◽  
Position Sense ◽  
Contralateral Side ◽  
Mechanical Instability ◽  
Ankle Inversion ◽  
Control Functions ◽  
Ankle Eversion ◽  
Grade Ii ◽  
Talar Tilt ◽  
First Time

We performed this study to monitor changes in ankle eversion strength and sensorimotor control functions after acute ankle inversion injury. Forty-four patients with clinical grade II to III first-time ankle inversion sprains were tested for 1) pathologic talar tilt and anterior talar translation at 1 and 12 weeks after injury; 2) isometric eccentric ankle eversion strength and 3) peroneal reaction time to sudden ankle inversion at 3, 6, and 12 weeks after injury; and 4) accuracy of inversion position assessment 1, 3, 6, and 12 weeks after injury. Not all patients could perform all tests at the early follow-up visits. There was mechanical instability in 19 of 40 tested patients at 1 week and in 4 patients at 12 weeks after injury. Eversion strength was 88% of the contralateral side 3 weeks after injury, rising to 96% after 12 weeks. The magnitude of error of inversion position sense was 190% of the contralateral side 1 week after injury; this was still affected after 12 weeks, but fell to 133%. Patients with pathologic talar tilt or anterior talar translation, or both, at 1 week after injury did not show significantly greater error in position assessment or reduction in eversion strength when compared with patients with ankles that remained stable after injury.

Differences in Joint-Position Sense and Vibratory Threshold in Runners With and Without a History of Overuse Injury

2015 ◽  
Vol 24 (1) ◽  
pp. 6-12 ◽  
Author(s):  
Tiffany Switlick ◽  
Thomas W. Kernozek ◽  
Stacey Meardon
Keyword(s):  
Postural Control ◽  
Outcome Measures ◽  
Overuse Injury ◽  
Position Sense ◽  
Joint Position Sense ◽  
Sensory Threshold ◽  
Sensorimotor Function ◽  
Joint Position ◽  
Ankle Eversion ◽  
History Of

Context:A relationship between altered postural control and injury has been reported in sports. Sensorimotor function serves a fundamental role in postural control and is not often studied in runners. Persons who sustain running injury may have altered sensorimotor function contributing to risk of injury or reinjury.Objectives:To determine if differences in knee and ankle proprioception or plantar sensation exist between injured and noninjured runners.Design:Retrospective case-control study.Setting:University campus.Participants:Twenty runners with a history of lower-extremity overuse injury and 20 noninjured runners were examined. Injured runners were subcategorized into 2 groups based on site of injury: foot/ankle and knee/hip.Main Outcome Measures:Active absolute joint-repositioning error of the ankle at 20° inversion and 10° eversion and the knee at 15° and 40° flexion was assessed using an isokinetic dynamometer. Vibratory threshold at the calcaneus, arch, and great toe was determined for each subject using a handheld electric sensory threshold instrument.Results:Runners in the injured-foot/ankle group had increased absolute error during ankle-eversion repositioning (6.55° ± 3.58°) compared with those in the noninjured (4.04° ± 1.78°, P = .01) and the hip/knee (3.63° ± 2.2°, P = .01) groups. Runners in the injured group, as a whole, had greater sensitivity in the arch of the plantar surface (2.94 ± 0.52 V) than noninjured runners (2.38 ± 0.53 V, P = .02).Conclusions:Differences in ankle-eversion proprioception between runners with a history of ankle and foot injuries and noninjured runners were observed. Runners with a history of injury also displayed an increased vibratory threshold in the arch region compared with noninjured runners. Poor ankle-joint-position sense and increased plantar sensitivity suggest altered sensorimotor function after injury. These factors may influence underlying postural control and contribute to altered loading responses commonly observed in injured runners.

scholarly journals Biomechanical Effect of 3D-Printed Foot Orthoses in Patients with Knee Osteoarthritis

2020 ◽  
Author(s):  
Kuang-Wei Lin ◽  
Li-Wei Chou ◽  
Yi-Tien Su ◽  
Shun-Hwa Wei ◽  
Chen-Sheng Chen
Keyword(s):  
Center Of Pressure ◽  
Medial Knee ◽  
Knee Oa ◽  
Ankle Inversion ◽  
Ankle Eversion ◽  
Peak Knee ◽  
Flexion Moment ◽  
3D Printed ◽  
Lateral Wedges ◽  
Second Peak

Abstract Background: Lateral wedges comprise a common conservative treatment for medial knee osteoarthritis (OA). However, use of lateral wedges might increases the ankle eversion moment. To minimize the risk of ankle joint, lateral wedges with custom arch support are suggested. However, the manufacturing process of a custom foot orthosis (FO) is complicated, labor intensive, and time consuming. The technology of 3D printing is an ideal method for mass customization. Therefore. the purpose of this study was to develop custom FOs using 3D printing techniques and to evaluate the biomechanical effects of 3D-printed FOs in patients with medial knee OA.Methods: Fifteen patients with medial knee OA were enrolled into this study. Kinematic and kinetic data were collected during walking by using an optical motion capture system. A paired-sample t-test was conducted to compare biomechanical variables under two conditions: walking in standard shoes (Shoe) and walking in shoes embedded with 3D-printed FOs (Shoe + FO).Results: Under the Shoe + FO condition, the center of pressure at the peak knee adduction moment significantly shifted laterally by 2.71 mm compared with the Shoe condition. No significant difference in the peak knee flexion moment was observed between the two conditions. In addition, both the first and second peak knee adduction moments were significantly reduced by 4.08% and 9.09% under the Shoe + FO condition. The 3D-printed FOs did not affect the ankle eversion moment but caused a decrease in the peak ankle inversion moment.Conclusions: The 3D-printed FOs caused a decrease in the ankle inversion moment, the first and second peak knee adduction moments by changing the center of pressure path laterally. Although the decrease in the knee flexion moment from the use of 3D-printed FOs was nonsignificant, such FOs engender biomechanical changes and positively influence the biomechanics of patients with knee OA.

scholarly journals GTR Treatment in Furcation Grade II Periodontal Defects with the Recently Reintroduced Guidor PLA Matrix Barrier: A Case Series with Chronological Step-by-Step Illustrations

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Anton Friedmann ◽  
Andreas Stavropoulos ◽  
Hakan Bilhan
Keyword(s):  
Tissue Regeneration ◽  
Complete Resolution ◽  
Tooth Loss ◽  
Case Series ◽  
Maintenance Program ◽  
Regenerative Approach ◽  
Furcation Involvement ◽  
Grade Ii ◽  
First Time ◽  
Observation Period

Molars with a furcation involvement (FI) exceeding grade 1 according to Hamp’s classification are at approximately doubled risk of tooth loss. Guided tissue regeneration (GTR) is a regenerative approach in the treatment of periodontal defects and is aimed at achieving new clinical attachment formation. The aim of this case series was to assess the efficacy of a newly reintroduced polylactic acid (PLA) matrix barrier and to evaluate the feasibility of the surgical approach. 11 patients with an average age of 58.7 years were treated with GTR using a PLA matrix barrier. Patients were instructed not to brush and chew on the treated side for 4 weeks. A gentle clinical probing was performed after 6 months for the first time after surgery. The patients were included into individual maintenance program at three months’ interval. The clinical improvement was expressed by reduced horizontal penetration of the probe accompanied by vast resolution of the vertical defect component. The change from grade II to grade I or complete resolution of the FI could be seen in 8 from 11 sites included. The newly reintroduced PLA matrix barrier showed promising results after a 12-month observation period with clinical attachment gain.

Outcome of the functional treatment of first-time ankle inversion injury

2010 ◽  
Vol 15 (4) ◽  
pp. 524-530 ◽  
Author(s):  
Jung Ho Noh ◽  
Bo Gyu Yang ◽  
Seung Rim Yi ◽  
Sang Hoon Lee ◽  
Cheol Ho Song
Keyword(s):  
Functional Treatment ◽  
Ankle Inversion ◽  
First Time

scholarly journals Efforts to Improve Indonesian Learning Results in Command Sentence through The Discovery Learning Model Assisted with Video Applications

2020 ◽  
Vol 3 (3) ◽  
pp. 495
Author(s):  
Tenti Budiastuti
Keyword(s):  
Elementary Schools ◽  
Action Research ◽  
Learning Outcomes ◽  
Class Ii ◽  
Learning Model ◽  
Discovery Learning ◽  
The Third ◽  
Post Test ◽  
Grade Ii ◽  
First Time

<p><em>The purpose of this study was to improve the learning outcomes of students in the Indonesian language muple in grade II elementary schools through the discovery learning model assisted by video applications. Classroom Action Research (CAR) was conducted in three cycles with each cycle consisting of two meetings. Where each cycle begins with planning, implementing, observing, and reflecting. Each first time, a pre-test and a post-test were conducted to determine the students' progress. In the first cycle, the students who completed the post test were 58%. In the second cycle, the students who completed the post test were 75%. In the third cycle, the students who completed the post test were 92%. These results indicate that the Discovery Learning learning model can improve the results of students, especially the class II class II SD Negeri Sindangheula 01.</em></p>

scholarly journals Knowledge of Acne among Medical Students: Pretest and Posttest Assessment

2014 ◽  
Vol 2014 ◽  
pp. 1-3 ◽  
Author(s):  
Kanakapura Nanjundaswamy Shivaswamy ◽  
Arakali Lakshminarayana Shyamprasad ◽  
Tharayil Kunneth Sumathy ◽  
Chandrashekaran Ranganathan ◽  
Shanmugan Praveen Kumar
Keyword(s):  
Medical Students ◽  
Undergraduate Students ◽  
Acne Vulgaris ◽  
Exact Test ◽  
Medical Undergraduate ◽  
Grade Ii ◽  
Second Year ◽  
First Time ◽  
Answer Format ◽  
Medical Undergraduate Students

Background. Acne vulgaris is a disorder of sebaceous glands mainly affecting the adolescent population. There are some misconceptions about acne not only in the general population but also among the medical students. Methods. Second year medical undergraduate students attending dermatology postings for the first time were included in the study. A questionnaire (in yes or no answer format) with 20 questions on acne, each carrying one mark, was to be answered by the students. The students were categorized into 4 grades based on the marks obtained: Grade I 90% marks and above, Grade II 75%–90%, Grade III 50%–74%, and Grade IV <50% marks obtained. Results. Of the 144 students of the batch, 95 (69.5%) completed both pretest and posttest questionnaires. The average pretest score was 14.1 and that of the posttest was 16.9. The percentage of improvement in mean score from pretest to posttest was 16.5. Fischer’s exact test was applied to analyze the improvement in scores between pretest and posttests which is significant at P=0.015 (P<0.05). In the paired t-test the improvement in mean scores between pretest and posttest was significant at P<0.001.

Clinical and Laboratory Analysis of the Self-Adhesive Composite Effectiveness in the Treatment of Caries Grade II on Black

2015 ◽  
Vol 22 (2) ◽  
pp. 97-102
Author(s):  
Малыхина ◽  
I. Malykhina ◽  
Шумилович ◽  
B. Shumilovich ◽  
Воробьева ◽  
...  
Keyword(s):  
Visual Inspection ◽  
Laboratory Methods ◽  
Clinical Observations ◽  
Dental Hard Tissues ◽  
Incomplete Filling ◽  
Restoration Techniques ◽  
Grade Ii ◽  
Vertise Flow ◽  
First Time

Class II cavities on Black is the most common widespread pathology of dental hard tissues. Due to the limited visual inspection diagnosis of these cavities is often difficult. For this reason, considerable difficulties arise when fillings. The most common errors of standard methods of sealing - the hanging edge of the composite, or the presence of gaps in incomplete filling in around the gingival area of the tooth.Clinical observations do not allow an adequate assessment of the quality of sealing and marginal adaptation of the composite immediately after treatment. This requires laboratory monitoring, the results of which would help to develop an optimal strategy and methodology of restoration of such cavities. The article presents the research results of the marginal integrity of composite at the sealing contact surfaces of chewing teeth. Laboratory studies were conducted using scanning electron microscopy and the fluorescent spec-tro-colorimetry of enamel. Standard restoration techniques do not provide reliable sealing of the enamel on aproximatly the surface of carious cavity, which was confirmed by clinical observations. For the first time, the developed authors&#180; technique of sealing the П class according to Black self-adhering flowable composite Vertise Flow according to clinical and laboratory methods of research provides qualitative edge adhesion and adhesion of the composite.

scholarly journals NIMG-63. THE APPLICATION OF MRI AND TREATMENT RESPONSE ASSESSMENT MAPS (TRAMS) FOR MONITORING TREATMENT EFFECTS DURING/FOLLOWING PROTON BEAM THERAPY – INITIAL EXPERIENCE

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii162-ii162
Author(s):  
Leor Zach ◽  
David Last ◽  
carola Lütgendorf-Caucig ◽  
Orit Furman ◽  
Alexandra Gerasimov ◽  
...  
Keyword(s):  
Proton Beam ◽  
Radiation Effects ◽  
Treatment Effects ◽  
Conformal Radiotherapy ◽  
Response Assessment ◽  
Proton Beam Therapy ◽  
End Of Treatment ◽  
Grade Ii ◽  
First Time ◽  
Grade Iii

Abstract BACKGROUND/OBJECTIVES We have previously shown that delayed-contrast-MRI-based TRAMs enable efficient separation between tumor and treatment-effects, validated histologically, reaching 100%/93% sensitivity/PPV to active tumor. Proton beam therapy (PBT) is a highly conformal radiotherapy modality with increasing use in CNS tumors. Here, for the first time, we studied the application of standard MRI and TRAMs for monitoring patients during/following PBT. METHODS 8 patients with gliomas (4 grade II, 3 grade III, 1 grade IV) and 9 with meningiomas (6 grade 1, 2 grade II, 1 grade III) were scanned by standard MRI and TRAMs at baseline, mid-term during PBT (treatment duration 22-30 days), end of treatment and 6/12 months thereafter. Enhancing volumes (EVs) were calculated from contrast-enhanced MRI, while blue/tumor and red/radiation-changes volumes (blueV/redVs) were calculated from the TRAMs. RESULTS Three gliomas showed increased (by &gt; 10%) EVs (15.2±8.7%), 3 stable and 2 decreased EVs (14.2±8.5%) during treatment. At the end of treatment 3 showed increased volumes (27.6±10.4%) and 5 decreased volumes (26.4±6.5%). One meningioma showed decreased EVs (11%) while 8 were stable during treatment. At end of treatment one showed increased EVs (22%), 5 were stable and 3 showed increased EVs (13.7±1.7%). The TRAMs showed similar trends but of varied magnitudes. In addition, the TRAMs could indicate radiation changes in two cases with increased enhancement: One glioma showed increased EVs/redVs and decreased blueVs during treatment, consistent with pseudoprogression, confirmed later by significant shrinkage of all volumes, and one meningioma with a similar pattern at 6 months. CONCLUSIONS Our initial results show for the first time significant changes in brain tumors volumes, during and at the end of PBT. The addition of TRAMs may suggest a new tool to assess PBT radiation effects. Interpretation of these results, comparison between tumor types/grades, and correlation with treatment planning and additional follow-up will be presented.

Sign in / Sign up

Export Citation Format

Share Document