• Journal of Korean Foot and Ankle Society
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• v.18 no.3
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• pp.108-114
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• 2014

Purpose: Ligament reattachment technique using a suture anchor appears to show satisfactory functional outcomes and mechanical stability compared with conventional bone tunnel technique. This study was prospectively conducted in order to evaluate functional outcomes of modified Brostrom procedures using the suture bridge technique for chronic ankle instability in athletes. Materials and Methods: Twenty eight athletes under 30 years of age were followed for more than two years after undergoing the modified Brostrom procedure using the suture bridge technique. Functional evaluation consisted of the foot and ankle outcome score (FAOS), foot and ankle ability measure (FAAM) score. Range of motion and time to return to exercise were evaluated using a periodic questionnaire. Talar tilt angle and anterior talar translation were measured through stress radiographs for evaluation of mechanical stability. Results: FAOS improved significantly from preoperative mean 59.4 points to 91.4 points (p<0.001). Daily living and sport activity scores of FAAM improved significantly from preoperative mean 50.5, 32.5 points to 94.8, 87.3 points, respectively (p<0.001). Talar tilt angle and anterior talar translation improved significantly from preoperative mean $16.8^{\circ}$, 13.5 mm to $4.2^{\circ}$, 4.1 mm at final follow-up (p<0.001). Times to return to exercise were as follows: mean 10.2 weeks in jogging, 15.4 weeks in spurt running, 13.1 weeks in jumping, 11.5 weeks in walking on uneven ground, 9.1 weeks in standing on one leg, 7.2 weeks in tip-toeing gait, 8.4 weeks in squatting, and 10.6 weeks in descending stairs. Conclusion: Modified Brostrom procedure using the suture bridge technique showed satisfactory functional outcomes for chronic ankle instability in athletes. Optimal indication and cost-effectiveness of the suture bridge technique will be studied in the future.

• Journal of Korean Foot and Ankle Society
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• v.12 no.2
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• pp.203-209
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• 2008

Purpose: To emphasize the importance of considering tuberculosis in atypical cases of foot and ankle by reporting clinical results of those cases. Materials and Methods: Seven cases which were diagnosed as tuberculosis around foot and ankle from March 1996 to June 2007 were included. We reviewed initial impressions, the time to be diagnosed, clinical symptoms, laboratory findings, radiological findings and the clinical results and complications. Results: We followed up at least 6 months ($6{\sim}24$ months) after surgery in all cases. Initially 2 cases had been diagnosed as cellulitis, 4 cases as chronic osteomyelitis, and 1 case as an ankle instability. Tuberculosis was diagnosed after biopsy in all cases. Mean duration of symptom was 15 months ($6{\sim}36$ months) except in infants. There were various radiologic manifestations such as osteopenia, bony erosion or destruction and cystic changes. Symptoms were relieved in all cases within 4 months with chemotherapy followed by surgical biopsy, except one ankle which had been misdiagnosed as ankle instability and joint destruction was developed after modified Brostrom surgery. Conclusion: It is important to perform a surgical biopsy for diagnosis and proper management even with a faint suspicion on tuberculosis in foot and ankle. And in case of need, when surgical biopsy is performed, curettage procedure may help to improve clinical result.

• 대한정형외과스포츠의학회:학술대회논문집
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• 2005.04a
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• pp.1-4
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• 2005

• 대한정형외과스포츠의학회:학술대회논문집
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• 2006.09a
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• pp.45-49
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• 2006

• Journal of the Korea Convergence Society
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• v.9 no.9
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• pp.143-148
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• 2018

The objective of the study was the effects of balance training using sandals on the balancing and proprioception of patients with chronic ankle instability(CAI). A total of 36 patients with CAI were assigned to sandal exercise(SE), balance training(BT), and control groups(CG). The groups were assessed for static balancing and proprioception before and after the intervention. The SE performed using balance sandals, while BT performed balance training. Intervention comprised a 30minute session. 3 times a week for 8 weeks. The SE showed significant effect in static balance, as compared to the other two groups (p<.001), whereas proprioception showed a significant effect on eversion (p<.001). Therefore, balance training using sandals can be a positive intervention method for prevention of falls in elderly as well as chronic ankle instability patients.

• PNF and Movement
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• v.18 no.2
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• pp.183-194
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• 2020

Purpose: Functional ankle instability (FAI) causes tension in the joints, ligaments, and tendons, and the impact on visual and vestibular organs leads to imbalance. This study compared the effects of a traditional balance training program to virtual reality training to improve FAI. Methods: Twenty-four participants with FAI (CAIT score < 24) were assigned to a virtual reality training group (n = 13) and a traditional balance training group (n = 11). Both groups pursued their respective training program for four weeks. After a ten-minute warm-up, participants completed a 30-minute training session, three times per week. The traditional balance training group underwent static and dynamic training using a balance board and a stability trainer pad while the virtual reality group underwent balance training using a virtual reality program. Biorescue was used to measure changes in the speed and length of center of pressure (COP) for single-leg stance pre- and post-training. Results: The speed and length of COP improved significantly in both groups after training as compared to before (p < 0.05). However, there were no significant differences in these outcomes between the virtual reality training group and the traditional balance training group (p>0.05). Conclusion: The study findings confirm the effectiveness of both virtual reality training and traditional balance training in reducing ankle instability, with no difference in treatment effects.

• Korean Journal of Applied Biomechanics
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• v.28 no.2
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• pp.135-141
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• 2018

Objective: The purpose of this study was to investigate the effect of functional ankle instability (FAI) and surgical treatment (ST) on postural stability and leg stiffness during vertical-drop landing. Method: A total of 21 men participated in this study (normal [NOR]: 7, FAI: 7, ST: 7). We estimated dimensionless leg stiffness as the ratio of the peak vertical ground reaction force and the change in stance-phase leg length. Leg length was calculated as the distance from the center of the pelvis to the center of pressure under the foot. Furthermore, the analyzed variables included the loading rate and the dynamic postural stability index (DPSI; medial-lateral [ML], anterior-posterior [AP], and vertical [V]) in the initial contact phase. Results: The dimensionless leg stiffness in the FAI group was higher than that of the NOR group and the ST group (p = .018). This result may be due to a smaller change in stance-phase leg length (p = .001). DPSI (ML, AP, and V) and loading rate did not show differences according to the types of ankle instability during drop landing (p > .05). Conclusion: This study suggested that the dimensionless leg stiffness was within the normal range in the ST group, whereas it was increased by the stiffness of the legs rather than the peak vertical force during vertical-drop landing in the FAI group. Identifying these potential differences may enable clinicians to assess ankle instability and design rehabilitation protocols specific for the impairment.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.28 no.1
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• pp.19-27
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• 2022

Background: This study investigated the effects of a single-leg hopping test and Q-angle when applying Mulligan taping, flossing bands, and a combination of Mulligan taping and flossing bands to chronic ankle instability (CAI) patients. Methods: The subjects of the study were 68 patients with chronic ankle instability, randomly divided into three groups receiving the following treatments: Mulligan taping (n=22), flossing bands (n=23), and a combination of Mulligan taping and flossing bands (n=23). The immediate effects of the treatments were evaluated using the single-leg hopping test and Q-angle measurement for functional movement before and after the intervention. Results: All three groups showed significant improvements in the single-leg hopping test after the intervention, and there was a significant difference between the performance of the simultaneous application group and the Mulligan taping group (p<.01). As a result of the post-hoc test, there was a significant difference in the simultaneous application group than in the mulligan taping group (p<.01). When measuring the Q-angle change during the activity of descending stairs, there was also a significant effect in all three groups, with no significant differences when comparing the changes between groups (p>.05). Conclusions: In conclusion, Mulligan taping and flossing bands were confirmed as effective interventions for the functional movement of the lower extremities in patients with CAI. This study can provide basic data on the effectiveness of interventions in patients with CAI.

• Journal of Korean Foot and Ankle Society
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• v.26 no.4
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• pp.157-162
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• 2022

Total ankle arthroplasty has become a viable motion-preserving alternative to ankle arthrodesis, especially in the last two decades. Recent improvements have been achieved in the strength of implant design and surgical technique. Nevertheless, addressing preoperative deformities is essential for successful outcomes of total ankle arthroplasty. Residual malalignment can produce instability and edge loading, causing acceleration of polyethylene wear, followed by osteolysis and an increased risk of revision surgery. Therefore, the accompanying deformities and their correction techniques need to be comprehensively elucidated and understood. In this article, we provide a review of the application of total ankle arthroplasty in arthritis with coronal plane varus and valgus deformities.

• Physical Therapy Rehabilitation Science
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• v.5 no.2
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• pp.78-83
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• 2016

Objective: The purpose of this study was to investigate whether the intrinsic foot muscle training method can improve the medial longitudinal arch in patients with chronic ankle injury and with pronated feet, as well as to investigate for the most effective exercise method for these patients. Design: Randomized controlled trial. Methods: Thirty men and women with pronated feet had participated in this study and were allocated to either the short foot exercise group (SFEG) or the towel curl exercise group (TCEG) randomly. SFEG and TCEG underwent exercises three times a week for 8 weeks, with three sets per day, totalling up to 5 minutes per day. The navicular drop test (NDT) was used in order to assess for changes in the medial longitudinal arch and the Cumberland ankle instability tool (CAIT) was used to assess for ankle instability of the chronic ankle sprain patients. Results: There was a significant increase in CAIT scores in the SFEG (p<0.05) and a significant difference between groups was presented (p<0.05). The NDT scores were significantly decreased in both groups (p<0.05). In the SFEG, the NDT scores were more decreased than in the TCEG (p<0.05). Conclusions: These results suggest that short foot exercises are more effective in providing intrinsic foot muscle training for patients with pronated feet among chronic ankle sprain patients. Furthermore, short foot exercises may be used to provide ankle stability.