• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2009년도 춘계학술대회 논문집
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• pp.963-964
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• 2009

• 대한족부족관절학회지
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• 제4권1호
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• pp.19-22
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• 2000

Fracture and dislocation of the four lateral metatarsal head and neck at the metatarsophalangeal joint, which may be associated with a hyperextension force, axial load, and additional rotating force, has rarely been reported. The patient was a 32-year-old man who sustained the injury in a motor vehicle accident. Manual reduction was easily performed but maintenance of reduction was difficult, due to the associated fractures of the metatarsal necks. Thus percutaneous internal fixation with Kirshner's wires was required.

• 복식
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• 제24권
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• pp.235-251
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• 1995

The purpose of this study is to analyze the charateristics of foot according to foot type and analyze the change of foot shape by movements for the sake of making a comfort-able footwears. On the 6 foot type classified by F.I. and F. P. A, this study analyze the surface areas and circumference in the surface area development figure. There are selected eighteen college girls and four movements. The results are as followes : 1. In the 6 foot types classified by F.I. and F. P. A., the circumferences were differed sig-nificantly. 2. In the 6 foot types classified by F.I. and F. P. A., the surface areas were not differed siginificantly. 3. By movements, circumferences and surfaces were not significantly changed according foot type. 4. By movements, the circumference IV, V were changed variously. 5. By movements, surface area of toes, M.P. joint and ankle were changed variously.

• 한국정밀공학회지
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• 제28권4호
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• pp.446-454
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• 2011

In terms of the anatomy and mechanics of the human foot, a flexible robot foot with toes and heel joints is designed for a bipedal walking robot. We suggest three design considerations in determining foot design parameters which are critical for walking stability. Those include the position of the frontal toe, the stiffness of toes and heels, and the position of the ankle joint. Compared with the conventional foot with flat sale, the proposed foot is advantageous for human-like walking due to the inherent structural flexibility and the reasonable parameter values. Simulation results are provided to determine the design parameters and also show that the proposed foot enables smaller energy consumption.

• 대한족부족관절학회지
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• 제19권4호
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• pp.181-187
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• 2015

Purpose: The purpose of this study is to retrospectively analyze the clinical results of screws and Kirschner wire (K-wire) fixation in patients with fracture dislocation of Lisfranc joint and the consequence of screw breakage. Materials and Methods: Sixty patients underwent Lisfranc joint open reduction and removal of internal fixators from January 2007 to December 2011. Forty-nine cases (81.7%) underwent operations with screw alone, and 11 cases (18.3%) underwent operations with both screws and K-wires. Type of internal fixators, duration of internal fixator removal, breakage of internal fixators and satisfaction with reduction were investigated. Additionally, American Orthopaedic Foot and Ankle Society (AOFAS) midfoot scales were analyzed. Results: The internal fixator was broken in 5 cases (8.3%). The average duration of instrument removal was 154 days in the non-broken screw group and 268.6 days in the broken screw group (p<0.05). The average AOFAS midfoot scale was 77.4 in the non-broken screw group and 74.2 in the broken screw group. The most commonly damaged portion was the first tarsometatarsal (Lisfranc) joint. Conclusion: Treatment with screws and K-wires was effective in patients with fracture dislocation of Lisfranc joint. The appropriate time for screw removal should be considered.

• 대한족부족관절학회지
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• 제15권1호
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• pp.1-6
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• 2011

Purpose: The purpose of this study was to compare the clinical and radiological results of single and double fusions in the transverse tarsal joint. Materials and Methods: Between December 2000 and April 2009, 16 patients (16 feet) who had been treated by fusion of transverse tarsal joint were included in this study. In 8 patients, only talonavicular joint was fused and in the other 8 patients, both talonavicular and calcaneocuboid joints were fused simultaneously. We have measured talo-first metatarsal angle, calcaneal pitch angle, talonavicular coverage angle and presence of adjacent joint arthritis for radiological assessment at both preoperative and last visit. Furthermore, we have evaluated Visual Analogue Scale (VAS), American Orthopaedic Foot and Ankle Society (AOFAS) score and patient's satisfaction. Results: In a single fusion group, VAS was improved from $6.4{\pm}1.4$ to $0.8{\pm}1.0$ (p=0.0011) and AOFAS score was improved from $63.8{\pm}6.2$ to $89.4{\pm}9.8$ (p=0.0012). In a double fusion group, VAS was improved from $8.0{\pm}0.75$ to $2.0{\pm}1.8$ (p=0.0011) and AOFAS score was improved from $60.5{\pm}11.2$ to $89.5{\pm}6.0$ (p=0.0012). In the difference of talo-first metatarsal angle between two groups, a single fused group was more improved than a double fused group (p=0.04). Conclusion: Both single and double fusions are useful and attractive treatment for the transverse tarsal joint arthritis. Furthermore, a single fusion has advantages of less invasiveness and preserving some degree of hindfoot motion and could be an effective alternative to a double fusion if patient meets appropriate criteria through careful preoperative evaluation.

• 대한족부족관절학회지
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• 제17권2호
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• pp.100-105
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• 2013

Purpose: To present radiographic characteristics and report the clinical results of the operative treatment of M$\ddot{u}$ller-Weiss disease. Materials and Methods: This is a retrospective study including 13 patients, 14 feet who had been operated for M$\ddot{u}$ller-Weiss disease between April 2006 and December 2011. Osteoarthritis of the peri-navicular joints were radiographically evaluated. Various range of peri-navicular fusion and joint-preserving surgeries according to patients' symptoms and radiographic findings were done. The clinical results were evaluated by American Orthopaedics Foot and Ankle Society (AOFAS) midfoot scale and visual analogue scale (VAS). Results: On radiographs, osteoarthritic changes were presented at talonavicular joint in 11 cases, calcaneocuboid joint in 7 cases, subtalar joint in 6 cases, naviculo-cuneiform joint in 1 case. The mean anteroposterior talocalcaneal angle was 16.6 degrees. On hindfoot alignment view, 6 cases were varus, 5 cases were neutral and 3 cases were valgus alignment. Fusion comprised 6 cases in triple fusion, 1 case in talonavicular-cuneiform fusion, 2 cases in talonavicualr fusion and 1 case in talonavicular & calcaneocuboid fusion. Joint-preserving surgeries were bony fragment excision of the lateral part of navicular & medial displacement calcaneal osteotomy in 1 case, bony spur excision of talonavicular joint in 1 case and medial displacement calcaneal osteotomy in 2 cases. The postoperative AOFAS and VAS score were improved significantly (p=0.000, p=0.000). Conclusion: In cases of M$\ddot{u}$ller-Weiss disease without osteoarthritic changes at peri-navicular joints, fragment excision of navicular, bony spur excision with or without medial displacement calcaneal osteotomy were effective operative treatments.

• 한국전문물리치료학회지
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• 제30권2호
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• pp.110-119
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• 2023

Background: Osteoarthritis is a common condition with an increasing prevalence and is a common cause of disability. Osteoarthritic pain decreases the quality of life, and simple gait training is used to alleviate it. Knee osteoarthritis limits joint motion in the sagittal and lateral directions. Although many recent studies have activated orthotic research to increase knee joint stabilization, no study has used patellar tendon straps to treat knee osteoarthritis. Objects: This study aimed to determine the effects of patellar tendon straps on kinematic, mechanical, and electromyographic activation in patients with knee osteoarthritis. Methods: Patients with knee osteoarthritis were selected. After creating the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), leg length difference, Q-angle, and thumb side flexion angle of the foot were measured. Kinematic, kinetic, and muscle activation data during walking before and after wearing the orthosis were viewed. Results: After wearing the patellar tendon straps, hip adduction from the terminal stance phase, knee flexion from the terminal swing phase, and ankle plantar flexion angle increased during the pre-swing and initial swing phases. The cadence of spatiotemporal parameters and velocity increased, and step time, stride time, and foot force duration decreased. Conclusion: Based on the results of this study, the increase in plantar flexion after strap wearing is inferred by an increase due to neurological mechanisms, and adduction at the hip joint is inferred by an increase in adduction due to increased velocity. The increase in cadence and velocity and the decrease in gait speed and foot pressure duration may be due to joint stabilization. It can be inferred that joint stabilization is increased by wearing knee straps. Thus, wearing a patellar tendon strap during gait in patients with knee osteoarthritis influences kinematic changes in the sagittal plane of the joint.

• 대한족부족관절학회지
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• 제16권2호
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• pp.135-139
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• 2012

The interphalangeal joint (IPJ) of the hallux has received little attention compared with the first metatarsophalangeal joint. But, the hallucal IPJ has several disorders such intra-articular fractures, dorsal dislocation, alignment disorder, and inflammatory or degenerative arthritis. Among these disorders septic arthritis of the IPJ of the hallux is rare. We report a case of sepsis of the hallucal IPJ and adjacent underlying osteomyelitis without neuropathic problem and was performed through infected soft tissue and osseous debridement, temporary antibiotic-impregnated cement spacer, and delayed intercalary allogenic fibular bone graft with K-wire fixation.

• Journal of Acupuncture Research
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• 제34권4호
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• pp.197-200
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• 2017

The effects of acupuncture treatment and taping therapy on a 22-year-old man who suffered from left foot pain due to Lisfranc joint injury were examined. Fractures of the first, second, and third metatarsal bones and a cuneiform bone were treated with acupuncture and taping therapy from March 24, 2017 to May 4, 2017. The patient was evaluated using the American Orthopaedic Foot & Ankle Society's Ankle-Hindfoot Scale. His Ankle-Hindfoot Score increased from 27 points pre-treatment to 65 points post-treatment. There were no side effects. While the improvement observed in this patient is encouraging, no definitive conclusion on the effects of acupuncture treatment and taping therapy on Lisfranc joint injuries can be reached without further large-scale study.