• Title/Summary/Keyword: orthopedic force

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Delayed Lateral Row Anchor Failure in Suture Bridge Rotator Cuff Repair: A Report of 3 Cases

  • Jeong, Jae-Jung;Ji, Jong-Hun;Park, Seok-Jae
    • Clinics in Shoulder and Elbow
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    • v.21 no.4
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    • pp.246-251
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    • 2018
  • Compared to single row repair, use of lateral row anchors in suture bridge rotator cuff repair enhances repair strength and increases footprint contact area. If a lateral knotless anchor (push-in design) is inserted into osteoporotic bone, pull-out of the lateral row anchor can developed. However, failures of lateral row anchors have been reported at several months after surgery. In our cases, even though complete cuff healing occurred, delayed pull-out of the lateral row anchor in the suture bridge repair occurred. In comparison to a conventional medial anchor, further biomechanical evaluation of the pull-out force, design, and insertion angle of the lateral anchor is needed in future studies. We report three cases with delayed pull-out of lateral row anchor in suture bridge rotator cuff repair with a literature review.

Fracture and dislocation of the four lateral metatarsophalangeal joints - A case report (외측 4개 중족 족지 관절의 골절-탈구 - 증례보고 -)

  • Yim, Soo-Jae
    • Journal of Korean Foot and Ankle Society
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    • v.4 no.1
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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.

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동유럽 3국 치과대학 순방기

  • Lee, Sang-Pil
    • The Journal of the Korean dental association
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    • v.30 no.3 s.274
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    • pp.237-241
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    • 1992
  • 이번 학술 대회에서는 Orthopedic force에 많은 관심이 주어졌으며 Growth Development및 기초 의학 분야의 연구가 한층 눈에 띄었다. 그리스 국제교정학회는 2회로써 이제 발전 초기단계이다. 우리와 학술 교류가 거의 없는 이곳 동구권 국가들과 많은 왕래가 있음으로써 국인 신장 및 학문 발전에 도움이 되리라고 생각한다.

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A LASER HOLOGRAPHIC STUDY ON THE INITIAL REACTION OF MAXILLOFACIAL COMPLEX TO MAXILLARY PROTRACTION (상악 전방견인시 악안면골의 초기반응에 관한 Laser Holography연구)

  • Kang, Hung Sok
    • The korean journal of orthodontics
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    • v.18 no.2
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    • pp.367-385
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    • 1988
  • In case of skeletal Class III malocclusion with underdeveloped maxilla, the extraoral orthopedic force for the stimulation of maxillary growth or anterior reposition of the maxilla has been used clinically for the improvement of facial skeletal relationship. The purpose of this investigation was to examine the initial reaction of maxillofacial complex to the maxillary protraction by using extraoral orthopedic force. The dried human skull was used and this investigation was done by means of double exposure holographic interferometry. The protraction forces placed on the canine or the first molar were parallel, $10^{\circ}$ downward, $20^{\circ}$ downward to the occlusal plane. Fringe pattern of each protraction condition was compared and analized. The results were as follows: 1. Each maxillofacial bone displaced saparately. 2. More displacement was shown at the area of the teeth and the alveolar bone. 3. A counterclockwise rotation of the maxilla wa decreased by downward protraction and especially 20 degree downward protraction from the canine showed least rotation. 4. On the zygomatic arch, outward bend was observed and this effect was decreased by downward protraction. 5. On the zygomatic bone, the counter clockwise rotation was increased by the downward protraction. 6. When maxillary expansion was applied at the same time, outward and upward displacement with counterclockwise rotation was observed on the maxilla. 7. The lateral pterygoid plate of sphenoid bone was affected by maxillary protraction.

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Cyriax's Lumbar Traction for Reduction of Nuclear Protrusion (수핵 탈출증에 대한 Cyriax 요추 견인법)

  • Park, Ji-Whan
    • The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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    • v.1 no.1
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    • pp.75-83
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    • 1995
  • Traction is the treatment of choice for a small nuclear protrusion. The nucleus is soft and can be influenced by suction. Traction provides a method of improving on recumbency-the only effective treatment before traction was devised. The intention is to achieve rapid reduction by distraction the joint surfaces mechanically-a positive purpose-instead of merely avoiding the compression of the upright posture by putting the patient to bed and leaving him there. Recumbency, usually successful in the end, wastes an endless amount of the patient's time and money. Traction carries the further advantage of enabling the patient to be up and about, attending to his bussiness, during treatment. Traction brings the joint surfaces much farther apart than just lying in bed, a greater centripetal force acts on the protruded part of the nucleus. Traction has three beneficial effects; 1. Suction : a sub-atmospheric pressure induces a centripetal effect on the contents. 2. Distraction : increases the distance between the articular edges. X -rays have shown an increase in width of the joint of 2.5 mm. 3. Ligamentous tightening : the posterior longitudinal ligament tightens which then exerts centipetal force on a central protrusion.

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Corticotomy for orthodontic tooth movement

  • Lee, Won
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.44 no.6
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    • pp.251-258
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    • 2018
  • Corticotomy was introduced as a surgical procedure to shorten orthodontic treatment time. Corticotomy removes the cortical bone that strongly resists orthodontic force in the jaw and keeps the marrow bone to maintain blood circulation and continuity of bone tissues to reduce risk of necrosis and facilitate tooth movement. In the 21st century, the concept of regional acceleratory phenomenon was introduced and the development of the skeletal anchorage system using screw and plate enabled application of orthopedic force beyond conventional orthodontic force, so corticotomy has been applied to more cases. Also, various modified methods of minimally invasive techniques have been introduced to reduce the patient's discomfort due to surgical intervention and complications after surgery. We will review the history of corticotomy, its mechanism of action, and various modified procedures and indications.

CASE REPORTS ON TREATMENT OF SKELETAL CLASS III MALOCCLUSION WITH FACE-MASK (Face-Mask를 이용한 골격성 III급 부정교합 환아의 치험례)

  • Yang, Kyu-Ho;Lee, Young-Jun
    • Journal of the korean academy of Pediatric Dentistry
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    • v.23 no.3
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    • pp.736-745
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    • 1996
  • The conventional treatment of skeletal Class III malocclusion has been focused on application of orthopedic force primarily to the mandible. However, In Class III malocclusion with retrograde position or underdevelopment of Maxilla, this approach is not suitable treatment. These patients need an application of orthopedic forces via face-mask to the Maxilla to stimulate its growth and to change the direction of growth. In skeletal Class III patients who were treated by Face-Mask, the following results were obtained. 1. Forward growth of Maxilla was enhanced. 2. Labioversion of upper incisors and linguoversion of lower incisors were observed. 3. Mandible was rotated to clockwise direction and remodeling of B point was observed. 4. Anterior crossbite was corrected by combining of the above results.

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Lupus Panniculitis of the Lower Leg Misdiagnosed as an Abscess: A Case Report (농양으로 오인된 하퇴의 루푸스 지방층염: 증례 보고)

  • Young-Chae Seo;Hyun-Seung Lee;Dae-Yoo Kim
    • Journal of Korean Foot and Ankle Society
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    • v.28 no.1
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    • pp.36-39
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    • 2024
  • Lupus panniculitis is a rare disease that may present with similar clinical manifestations to an infection, such as cellulitis or abscess. This paper reports a case of a 25-year-old woman with systemic lupus erythematosus who underwent surgical intervention initially with the suspicion of an abscess but who was eventually diagnosed with lupus panniculitis. Despite the low incidence of lower leg involvement of panniculitis, clinicians should be aware of the possibility of an etiology other than infection when encountering patients with inflammatory diseases. Moreover, a skin biopsy and magnetic resonance imaging with a diffusion-weight image may be helpful.

Introduction of Bong Chuna Manual Therapy (봉 추나요법의 개요)

  • Oh, Won-Kyo;Shin, Byung-Cheul
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.2 no.1
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    • pp.99-114
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    • 2007
  • Objectives : The purpose of this study was to introduce the Chuna Manual Therapy (CMT) using Bong (a type of stick which is called 'bong') as a part of Oriental Medicine. Methods : We searched several traditional methods of CMT using Bong, either individual contact to specialist of CMT using Bong or referred to publications, and summarized briefly for introduction. Authors also made a comparative study between existing CMT and CMT using the bong. Results & Conclusions : The indications of Bong CMT are regarded as acute or chronic pain syndrome, whiplash associated disorders, facet syndrome, vertebral misalignment, chronic fatigue syndrome, obesity and also lower extremity length difference caused by malalignment of vertebrae and pelvic bone. The Meridian Muscle Therapy by pressing down using the Bong can be carried out on the imbalances of the muscle by shortening and lengthening contraction. CMT with Bong is considered more effective than other existing CMT in terms of effectiveness. In the case of pelvic correction which needs a tremendous amount of force, it can reduce the force required effectively. This fact can be inferred by the theory of composition and decomposition of force during the transmission of power. We can perform Bong CMT feeling less fatigued subsequently than general CMT. Pressing down with flexed fingers to grip bong acts on the contraction of flexor digiti and extensor digiti muscle, this protects the $doctor^{\circ}{\emptyset}s$ wrist joints from injury. The bong which acts as a tool between the doctor and the patient, while being given treatment, absorbs and spreads out the direct impact from the patient to the doctor. CMT with Bong is able to apply to both existing massage therapies with the hand. The bong appliance can be used in all applications, particularly, but not limited to; Orthopedic and Manual Correction Therapy, Meridian Muscle Pressing, Exercise Therapy, and Meridian Point Manual Pressing Therapy. CMT with Bong belongs to the category of oriental rehabilitation and Chuna manual medicine.

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EFFECTS OF MAXILLARY PROTRACTION ON THE DISPLACEMENT OF THE MAXILLA (상악골 전방 견인이 상악골체의 변위에 미치는 영향)

  • Ko, Jeong-Seok;Kim, Jong-Chul
    • The korean journal of orthodontics
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    • v.25 no.5 s.52
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    • pp.543-555
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    • 1995
  • In the orthopedic therapy, the biomechanical analysis of the appliance is necessary to get a desirable orthopedic effect. The purpose of this study was to investigate the desirable direction and application position of the protraction force. The protraction force of 500g was applied to the first premolar or to the first molar. The direction of force application was paralell or $20^{\circ}$ downward to the occlusal plane respectively. The stress distribution and the displacement within the maxilla was analyzed by a 3-dimensional finite element method. The findings obtained were as follows 1. Protraction forces caused a counterclockwise rotation of the maxilla. 2. The degree of maxillary rotation was less when the force was applied $20^{\circ}$ downward direction to the occlusal plane than when applied to the parallel direction. 3. The degree of rotation of maxilla was greater when the parallel force was applied to the 1st premolar than when applied to the first molar, whereas it was greater when force is applied $20^{\circ}$ downward than at the first premolar. In conclusion, the $20^{\circ}$ downward protraction from the first premolar induced the least counterclockwise rotation of the maxilla and was thought as the desirable direction and application position of the protraction force.

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