• 제목/요약/키워드: center of hand

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Risk Factors for the Development and Progression of Atlantoaxial Subluxation in Surgically Treated Rheumatoid Arthritis Patients, Considering the Time Interval between Rheumatoid Arthritis Diagnosis and Surgery

  • Na, Min-Kyun;Chun, Hyoung-Joon;Bak, Koang-Hum;Yi, Hyeong-Joong;Ryu, Je Il;Han, Myung-Hoon
    • Journal of Korean Neurosurgical Society
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    • v.59 no.6
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    • pp.590-596
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    • 2016
  • Objective : Rheumatoid arthritis (RA) is a systemic disease that can affect the cervical spine, especially the atlantoaxial region. The present study evaluated the risk factors for atlantoaxial subluxation (AAS) development and progression in patients who have undergone surgical treatment. Methods : We retrospectively analyzed the data of 62 patients with RA and surgically treated AAS between 2002 and 2015. Additionally, we identified 62 patients as controls using propensity score matching of sex and age among 12667 RA patients from a rheumatology registry between 2007 and 2015. We extracted patient data, including sex, age at diagnosis, age at surgery, disease duration, radiographic hand joint changes, and history of methotrexate use, and laboratory data, including presence of rheumatoid factor and the C-reactive protein (CRP) level. Results : The mean patient age at diagnosis was 38.0 years. The mean time interval between RA diagnosis and AAS surgery was $13.6{\pm}7.0$ years. The risk factors for surgically treated AAS development were the serum CRP level (p=0.005) and radiographic hand joint erosion (p=0.009). The risk factors for AAS progression were a short time interval between RA diagnosis and radiographic hand joint erosion (p<0.001) and young age at RA diagnosis (p=0.04). Conclusion : The CRP level at RA diagnosis and a short time interval between RA diagnosis and radiographic hand joint erosion might be risk factors for surgically treated AAS development in RA patients. Additionally, a short time interval between RA diagnosis and radiographic hand joint erosion and young age at RA diagnosis might be risk factors for AAS progression.

A Case Study of Myoelectric Hand Prosthesis for Upper Extremity Amputee (상지절단자용 전동의수 증례연구)

  • Kang, Ju-Ho;Kim, Myung-Hoe;Lee, Jeong-Weon
    • Physical Therapy Korea
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    • v.2 no.1
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    • pp.80-87
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    • 1995
  • The purpose of this case study was to introduce a myoelectric hand prosthesis for upper extremity amputee and prosthetic training program. Limb loss can result from disease, injury, or congenital causes. Trauma has been increasingly important role as the cause of amputaion in young, vigorous, and otherwise healthy individuals. The higher the level of amputation the greater the functional loss of the part, and the more the amputee must depend on the prostheis for fuction and cosmesis. Myoelectrical control of prostheses is a recent development and has been steadily gaining in clinical use over the past 20 years. Such a prosthesis uses signals from muscle contraction within the stump to activate a battery driven moter that operates specific component fuctions of the prosthesis. This twenty years old male case was operated a right above-elbow amputation due to tracffic accident and admitted to Yonsei Rehabilitaion hospital for the preprosthetic and prosthetic training. The case was able to successfully complete his myoelectric hand prosthesis training in the February of 1995.

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Conceptual Design of New Six-Bar Robot Hand by Type Synthesis (형태합성에 의한 새로운 6 절 기구 로보트 손의 개념설계)

  • 이경원;이황진
    • Journal of the Korean Society for Precision Engineering
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    • v.17 no.6
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    • pp.63-68
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    • 2000
  • This paper describes the conceptual design of new robot hand by type synthesis. The conventional robot hands with rotational movement have bad controllability because the distance between the final rotational joint and the center of things grasped is changed according to the size of things grasped. This paper uses the systematic procedure of type synthesis and the knowledge for designing robot hands. The new 6-bar Watt I type conceptual robot hand with rectilinear translational movement is proposed.

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The Diagnostic Assessment of Hand Elevation Test in Carpal Tunnel Syndrome

  • Ma, HyunJin;Kim, Insoo
    • Journal of Korean Neurosurgical Society
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    • v.52 no.5
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    • pp.472-475
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    • 2012
  • Objective : The aim of this study is to establish the value of hand elevation test as a reproducible provocative test for the diagnosis of carpal tunnel syndrome (CTS). Methods : We had a prospective study of 45 hands of 38 patients diagnosed with CTS between April 2005 and February 2009. The diagnosis of CTS was based on the American Academy of Neurology clinical diagnostic criteria. Experimental and control group patients underwent Tinel's test, Phalen's test, carpal compression test and hand elevation test as provocative tests for CTS. Results : We used chi-square analysis to compare Tinel's test and Phalen's test, carpal compression test with hand elevation test. The sensitivity and specificity of the hand elevation test is 86.7% and 88.9% each. Tinel's test had 82.2% sensitivity and 88.9% specificity. Phalen's test had 84.4% sensitivity and 86.7% specificity. Carpal compression test had 84.4% sensitivity 82.2% specificity. Comparisons of sensitivity and specificity between hand elevation test and Tinel's test, Phalen's test, and carpal compression test had no statistically significant differences. To compare the diagnostic accuracies of four tests, the area under the non-parametric receiver operating character curve was applied. Conclusion : The hand elevation test has higher sensitivity and specificity than Tinel's test, Phalen's test, and carpal compression test. Chi-square statistical analysis confirms the hand elevation test is not ineffective campared with Tinel's test, Phalen's test, and carpal compression test.

Assessment of Hand Function in Spastic and Athetoid Cerebral Palsied Children by Jebsen Hand Function Test (경련성과 무정위성 뇌성마비 아동의 Jebsen Hand Function Test에 의한 손기능 평가)

  • Lee, Cu-Rie;Lee, Mi-Ja
    • Journal of Korean Physical Therapy Science
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    • v.3 no.2
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    • pp.981-987
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    • 1996
  • Hand function evaluations are an important element of the assessment process in physical rehabilitation settings. The purpose of this study was to investigate hand function evaluation. Subjects consisted of 20 with spastic cerebral palsy(mean age = 9.8, SD = 1.6) and 20 with athetoid cerebral palsy(mean age = 9.6, SD = 2.3). Two groups of subjects were tested twice(pretest and posttest) by the JHFT to measure evaluations of hand function. These findings suggest that on four subtests - writing, card turning, large heavy objects and Stacking Checker-the spastic cerebral palsy perform significantly faster than athetoid cerebral palsy. But there were no significant differences between the pretest and posttest in spastic and athetoid cerebral palsy. To see the statistical differences in the experimental results was done using origin V. 3.0.

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Hand & Foot Dorsum Reconstruction in Children using Parascapular Free Flap (부견갑부 유리 피판을 이용한 소아의 손, 발등 재건)

  • Kim, Sukhan;Hyon, Wonsok;Lee, Jihyuck;Mun, Goohyun;Bang, Saik;Oh, Kapsung
    • Archives of Reconstructive Microsurgery
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    • v.13 no.1
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    • pp.63-67
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    • 2004
  • Because traumatic tissue damage on hands and feet often lead to loss of function, permanent deformity, prompt and adequate reconstruction is essential. For children, future growth, as well as function and esthetics, must be taken into account. Several techniques have been employed to reconstruct hand and foot dorsum defects of children. However, skin graft and muscle free flap with skin graft cannot prevent contracture and will interfere with normal growth. Fasciocutaneous free flap reduces contracture and enables early physical therapy, decreasing the need for additional surgical intervention. Parascapular flap is particularly suitable because it has reliable pedicle and is relatively thin. There is little functional loss in the donor site, and also simultaneous extensor tendon reconstruction of hand and foot is possible. The disadvantage of this technique is that postoperative defatting is needed to adjust volume. Our department has achieved satisfactory results using this approach, and would like to report 13 cases of hand and foot reconstruction using parascapular flap in patients under the age of 15 (from March, 1998 to May, 2003).

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The relationship between frequency of tooth brushing and hand washing in Korea adolescent (한국 청소년의 위생습관 중 잇솔질과 손 씻기의 연관성)

  • Jin, Hye-Jung;Lee, Young-Eun;Ahn, Sang-Hun;Jin, Myoung-Uk;Choi, Soon-Lye;Song, Keun-Bae;Choi, Youn-Hee
    • Journal of Korean society of Dental Hygiene
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    • v.13 no.1
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    • pp.82-88
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    • 2013
  • Objectives : The aim of this study was to evaluate the relationship between the hand washing management and tooth brushing frequency. Methods : The subjects in this study were 7,285 adults who were selected from the third-year(2009) raw data of the fourth national health & nutrition survey. Results : The mean frequency of daily toothbrushing was 3.35. Increases the frequency of both toothbrushing and hand washing with higher grade class. The higher the tooth brushing frequency, the intention of hand washing management at school and home was more increased. Conclusions : This study can contribute to the general health and oral health promotion.

Teleconsultation Neuropathy (전화 상담원 신경병증)

  • Go, Seok Min;Bae, Jong Seok;Park, Sung Sik;Kim, Min Ky;Kim, Byoung Joon
    • Annals of Clinical Neurophysiology
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    • v.7 no.2
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    • pp.141-142
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    • 2005
  • Two cases of bilateral ulnar neuropathies caused by telephone overuse are described in people engaged in the job of longtime telephone use. They had worked using telephone all through the working hours. Although they were right handed, they usually used the telephone in their left hand so as to leave their right hand free for writing, and would lean his elbow on the desk. Telesales or teleconsultation is a rapidly expanding field of business. These cases highlights the need of proper training and supplies appropriate to do their job.

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Suggestion of New Terminology and Classification of the Hand Techniques by Angular Momentum in the Taekwondo Poomsae

  • Yoo, Si-Hyun;Jung, Kuk-Hyun;Ryu, Ji-Seon
    • Korean Journal of Applied Biomechanics
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    • v.26 no.1
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    • pp.51-69
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    • 2016
  • Objective: The purpose of this study is to suggest new terminology for the ninety-five hand techniques based on the significance of their angular momentum, determined by analyzing each technique's influence or impact on the compartmentalized angular momentum of the trunk, upper arm, and forearm in the Taekwondo Poomsae. Method: An athlete who won the 2014 World Taekwondo Poomsae championship was selected and agreed to participate in the data collection phase of our investigation. The video data was collected using eight infrared cameras (Oqus 300, Qualysis, Sweden) and the Qualisys Track Manager software (Qualisys, Sweden). The angular momentum of each movement was then calculated using the Matlab R2009a software (The Mathworks, Inc., USA). Results: The classification of the ninety-five hand techniques in the Taekwondo Poomsae based on the significance of each segment's momentum is as follows. Makgi (blocking) is classified into fourteen categories, jireugi (punching) is classified into three categories, chigi (hitting) was classified into six categories, palgupchigi (elbow hitting) was classified into four categories, and jjireugi (thrusting) was classified two categories. Conclusion: This study offers a new approach, based on a biomechanical method, to the classification of the hand techniques that reflect kinesthetic motions in the Taekwondo Poomsae.