• 제목/요약/키워드: Nerve transfer

검색결과 84건 처리시간 0.03초

내재적 유전자에 의한 어류난자에서의 hEGE 단백질 생산을 위한 기술개발 (Development of Transgenic Fish for the Production of Human EGF Protein)

  • 황창남;송기철;이재현;윤종만;김기동;이상호;박홍양
    • 한국가축번식학회지
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    • 제25권3호
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    • pp.277-286
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    • 2001
  • 기존의 미세주입 및 정자 electroporation에 의한 보다 효율적인 유전자 도입방법을 개선하여 간단하고 고효율성의 유전자 변환기술을 위한 유전자 도입장치의 시제품 개발로 다수의 난자를 전기적으로 단순화할 수 있는 상업화의 가능성을 보여주었다. 도입된 유전자는 모든 초기배에서 발현됨을 보여 주었다. 특히 난황내의 합포체세포(syncytium)에서의 transient성의 강한 발현은 전기자극에 의해 많은 수의 난자에 유전자를 도입하고 100% 발현되는 체계를 이용하여 transient 시기에서 인간 유용단백질 생산의 가능성을 타진할 수 있는 결과를 보여 주었다. 어류유전자 발현의 작동되는가를 검색하기 위해 신경세로조직특이 tubulin promoter 를 이용한 결과 gfp의 발현이 뇌주변과 척추를 중심으로 체내 전반의 신경세포내에 발현이 강하게 나타남을 보여 주었다. 한편 reporter 유전자 이외에 간세포로부터 전체 RNA를 분리시켜 vitellogenin의 분해산물인 phosvitin cDNA의 길이와 promoter지역인 1.6 kb에 대한 primer쌍들을 선정한 상태에서 PCR에 의해 각각 cDNA와 gDNA로부터 cloning 중에 있으며 human factor Ⅶ과 epidermal growth factor, vitellogenin의 3종의 target 단백 질유전자를 구축 및 검정 화인 중에 있다.

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난치성 익상 견갑의 대흉근 이전술 - 증례 보고 - (Pectoralis Major Tendon Transfer for Refractory Winged Scapula - A Case Report -)

  • 고상훈;조성도;이기재;이채칠
    • Clinics in Shoulder and Elbow
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    • 제12권2호
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    • pp.236-239
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    • 2009
  • 목적: 저자들은 장흉 신경 손상에 의한 전거근 마비로 발생한 진구성 익상 견갑에서 대흉근 이전 술 시행 시 유용성과 임상적 결과를 평가하고자 하였다. 대상 및 방법: 외상 성 탈구로 야기된 견관절 불안정성에 대해 관절경 수술을 시행 후 발생한 진구성 익상 견갑 환자1예를 대상으로 Modified Eden-Lange 술식을 이용한 대흉근 이전술을 시행하였고, 술 전 전방 거상 90도, 외전 70 도에 비해 술 후 전방 거상 170도, 외전 150 도로 술후 향상된 관절운동 범위와 합병증 및 익상 견갑의 재발은 보이지 않았으며, 환자의 술 후 심리적 만족도 또한 높게 나타났다. 결과 및 결론: 장흉 신경에 의한 전거근 마비로 발생한 익상 견갑의 경우 다른 견갑대의 근육, 신경의 이상이 동반되지 않았을 때 대흉근 근육 이전술은 정상적인 견갑흉곽 운동을 제공할 수 있는 만족스러운 치료법 중 하나로 생각된다.

상완 신경총 손상후 주관절 근력 회복을 위한 광배근 전이술 (Latissimus Dorsi Transfer in Brachial Plexus Injury for the Elbow Flexion)

  • 한정수;정덕환;소재호
    • Archives of Reconstructive Microsurgery
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    • 제7권1호
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    • pp.35-40
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    • 1998
  • The incidence of brachial plexus injury is increasing because of the development of motor vehicle but the the results of treatment was reported poor due to its complex anatomical structure and changes of function and sensory during the recovery after trauma. But the results of treatment has been improved by the recently introduced high sensitive diagnostic method that can evaluate accurately the site and extent of the injury and treatment method. Restoration of the elbow flexion is the most important goal of treatment after brachial plexus injury and nerve graft, neurotization and muscle transfer were used for methods of treatment. From December 1992 to May 1994, the author performed 6 cases of latissimus dorsi transfer at the same side for the improvement of elbow flexion in the patients of brachial plexus injury. There were 5 cases of male, one case of female and average age was 22 years old. The causes of injury were traffic accident in 3 cases, gun shot injury, falldown and birth injury in each one case and in all cases, the type of injury were upper arm type. The average follow up period were 1 year 5 months ranging from 12 months to 4 years 5 months. In all cases, active elbow flexion was impossible before operation and average muscle power was grade I. We analysed the active range of motion, muscle power and the functional results. At the last follow up, range of active elbow flexion was average $124^{\circ}$ and flexion contracture was average 11 degrees and the average of muscle power was grade IV. In the functional analysis, there were two cases of excellent, three cases of good and 1 case of fair. There was no complications including wound infection, vascular compromise and donor site problem. The results of latissimus dorsi transfer for improvement elbow flexion in the patients of brachial plexus injury is one of the useful mettled for the restoration of elbow flexion.

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족배부 유리편을 이용한 생건 피부편이식 (Tendocutaneous Free Flap Transfer from Dorsum of the Foot)

  • 이광석;박상원;변영수;강기훈;강오용
    • Archives of Reconstructive Microsurgery
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    • 제1권1호
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    • pp.24-30
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    • 1992
  • Tendocutaneous free flap transfer has been usually used to treat troublesome wounds, which had extensive defect of skin and tendons, since Daniel and Taylor had reported successful free flap transfer in 1973. Among the numerous types of free flap, the dorsalis pedis flap, which could include superficial peroneal nerve, extensor tendon and second metatarsus, was widely used as composite free flap. The authors analysed 13 cases of tendocutaneous free flap transfer from dorsum of the foot which were operated at Korea University Hospital from March 1981 to August 1991. The results were as follows: 1. The average size of these flaps was $53.7cm^2$(mazimum $82cm^2$, minimum $30cm^2)$, the average number and length of tendons were 2.9(maximum, 5, minimum 1), and 9.2cm (maximum 17cm, minimum 5cm). 2. The survival rate of flaps was 100%, and functional results by Dargan's criteria were 4 in excellent, 4 good, 3 fair and 2 poor. 3. The delayed healing on donor site could prevented by the meticulous skin graft and repair of extensor retinaculum. 4. The cases of electrical burn were more worse than the traumatic cases in functional results.

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족 배 유리 피부판을 이용한 사지 재건술 (Reconstruction of the Extremities with the Dorsalis Pedis Free Flap)

  • 이준모;김문규
    • Archives of Reconstructive Microsurgery
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    • 제8권1호
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    • pp.77-83
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    • 1999
  • 전북대학교병원 정형외과에서 1993년 8월부터 1997년 8월까지 족부 및 수부 손상 5례에 대하여 족 배 유리 피부판 이식술을 시행하고, 1999년 3월까지 최소 19개월부터 최장 67개월간 추시하여 다음과 같은 결과를 얻었다. 1. 나이별로는 9세부터 35세까지로 평균 23세 이었으며, 성별로는 전례가 남자이었으며, 족부에서 시행하였던 예가 4례, 수부에서 1례이었다. 2. 족부의 손상 원인은 교통사고 2례, 기계 사고 1례, 자전거 바퀴 사고 1례 이었으며, 수부에서는 교통사고에 의하여 전완부 요골의 개방성 골절이 동반되고 수부 배부의 다발성 신전 건 파열 및 피부 괴사에 의한 신전 건 노출 1례이었다. 3. 수여 동맥은 족 배 동맥 2례, 전 경골 동맥 1례, 후 경골 동맥 1례 그리고 척골 동맥이었으며, 수여 정맥은 족부 4례에서 2개 정맥을 문합하였으며, 5례(100%) 전례에서 성공하였다. 4. 추시 결과 유리 피판 이식술 후 외양(exterior)과 일상생활시 피부판이 손상되는 분쇄(maceration) 정도는 우수하였으나, 감각 회복 정토는 불량하였다. 5. 제공 부위인 족 배부는 유리 피판 이식술 3주 후 전층 식피술을 시행하여 완전 접착되었으며, 추시상 유병율없이 우수한 결과를 보였다.

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뇌혈관 질환자의 기능 회복과 체성감각 유발전위의 변화 (Changes of Somatosensory Evoked Potential and Functional Recovery in Patients of Cerebrovascular disease)

  • 김윤환;김찬규;박종항;이승엽;최원제
    • 대한물리치료과학회지
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    • 제15권1호
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    • pp.11-20
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    • 2008
  • This study was designed to test the effects of comprehensive rehabilitation management on functional recovery after attack of cerebrovascular disease. 16 cerebrovascular disease patients applied comprehensive rehabilitation management of physical therapy at department of physical Therapy, C medical center in Gwang-ju. The collection of the data had been executed for 4months(April 15, 2007${\sim}$July 15, 2007). For evaluating, Functional Independence measure(FIM) and Somatosensory Evoked Potential(SSEP) were used to assess functional recovery. The results of this study were as follows: 1. In the comparison of latency of median nerve SSEP before and after treatment, the lat. N20 and P25 increased, the ampl. P25/N20 was decreased. In the comparison difference data of median nerve SSEP, however there was no significant difference in the group(p>0.05). 2. In the comparison of latency of Post Tibial nerve SSEP before and after treatment, the lat. P40, P50, P60 increased, the ampl. P40 was decreased. In the comparison difference data of post tibial nerve SSEP, however there was no significant difference in the group(p>0.05). 3. In the comparison of FIM scores of Self-care, Sphincter Control, Mobility: Transfer, Locomotion before and after treatment, the scores of FIM was significantly increased. In the comparison of difference of the motor part of FIM, however there was significant difference(p<0.05). 4. In the comparison of FIM scores of Communication, Social Cognition before and after treatment, the scores of FIM was significantly increased. In the comparison of difference of the motor part of FIM, however there was no significant difference in the group(p>0.05). Based on these results, it is concluded that the comprehensive rehabilitation management for cerebrovascular disease case was not significant difference in the SSEP, was significant difference in the motor part of FIM. Further study should be done to analyze the effect of intervention duration of treatment, optimal time to apply the treatment in more long period.

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Fingertip Reconstruction Using Free Toe Tissue Transfer Without Venous Anastomosis

  • Yoon, Won Young;Lee, Byung Il
    • Archives of Plastic Surgery
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    • 제39권5호
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    • pp.546-550
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    • 2012
  • Background This study was designed to introduce the feasibility of toe tissue transfer without venous outflow for fingertip reconstruction. Methods Five cases of fingertip defects were treated successfully with this method. Four cases were traumatic fingertip defects, and one case was a hook-nail deformity. The lateral pulp of a great toe or medioinferior portion of a second toe was used as the donor site. An arterial pedicle was dissected only within the digit and anastomosis was performed within 2 cm around the defect margin. The digital nerve was repaired simultaneously. No additional dissection of the dorsal or volar pulp vein was performed in either the donor or recipient sites. Other surgical procedures were performed following conventional techniques. Postoperative venous congestion was monitored with pulp temperature, color, and degree of tissue oxygen saturation. Venous congestion was decompressed with a needle-puncture method intermittently, but did not require continuous external bleeding for salvage. Results Venous congestion was observed in all the flaps, but improved within 3 or 4 days postoperatively. The flap size was from $1.5{\times}1.5cm^2$ to $2.0{\times}3.0cm^2$. The mean surgical time was 2 hours and 20 minutes. A needle puncture was carried out every 2 hours during the first postoperative day, and then every 4 hours thereafter. The amount of blood loss during each puncture procedure was less than 0.2 mL. In the long-term follow-up, no flap atrophy was observed. Conclusions When used properly, the free toe tissue transfer without venous anastomosis method can be a treatment option for small defects on the fingertip area.

Pediatric facial reanimation: An algorithmic approach and systematic review

  • Deramo, Paul J.;Greives, Matthew R.;Nguyen, Phuong D.
    • Archives of Plastic Surgery
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    • 제47권5호
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    • pp.382-391
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    • 2020
  • Facial palsy has a broad clinical presentation and the effects on psychosocial interaction and facial functions can be devastating. Pediatric facial palsy, in particular, introduces unique familial and technical considerations as anatomy, future growth potential, and patient participation influence treatment planning. Though some etiologies of pediatric facial palsy are self-limiting, congenital and long-standing facial palsies pose difficult challenges that require a combination of surgical, adjunctive, and rehabilitative techniques to achieve facial reanimation. Given the spectrum of ages and symptom severity, as well as the various surgical options available for facial palsy, a tailored approach needs to be developed for each child to restore facial balance and function. Here, we review the etiologies, workup, and treatment of pediatric facial palsy and present our novel algorithmic approach to treatment.

Metachronous malignant tumors in ipsilateral salivary glands

  • Kwon, Hyo Jeong;Kim, Seong Ae;Rhie, Jong Won;Moon, Suk-Ho
    • 대한두개안면성형외과학회지
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    • 제20권6호
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    • pp.412-415
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    • 2019
  • Salivary gland tumors usually appear in solitary mass in single salivary gland. The coexistence of tumors with different histological types occurring within a unilateral parotid gland is an extremely rare event. We experienced a case which two different types of malignant tumors developed at different time points in same gland; metachronous tumors. The second tumor was excised widely and reconstruction was performed by free tissue transfer. Sensory and motor nerve to the left cheek appeared to be intact, and circulation was adequate. This rare case was presented in this article.

Pollicization of the Middle Finger

  • Bahk, Sujin;Eo, Su Rak;Cho, Sang Hun;Jones, Neil Ford
    • Archives of Reconstructive Microsurgery
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    • 제24권2호
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    • pp.62-67
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    • 2015
  • Purpose: Pollicization typically involves surgical migration of the index finger to the position of the thumb. This procedure facilitates the conversion of a useless hand into a well-functioning one in patients who are not amenable to the toe-to-hand transfer. However, middle finger pollicization has been rarely reported. Materials and Methods: We reconstructed a thumb by immediate pollicization of the remnants of the middle finger in two patients who sustained a tumor and a trauma, respectively. The former, after cancer ablation was performed, has not been reported literally, and the latter involved free devitalized pollicization of the middle finger using a microsurgical anastomosis. The distal third extensor communis tendon was sutured to the proximal extensor pollicis longus tendon and the distal flexor digitorum superficialis and profundus were sutured to the proximal flexor pollicis longus. The abductor pollicis brevis tendon was sutured to the distal end of the first palmar interosseous muscle. Coaptation of the third digital nerve and the superficial radial nerve branch was performed. Results: Patients showed uneventful postoperative courses without complication such as infection or finger necrosis. Based on the principles of pollicization, a wide range of pinch and grasp movements was successfully restored. They were pleased with the functional and cosmetic results. Conclusion: Although the index finger has been the digit of choice for pollicization, we could also use the middle finger on specific occasions. This procedure provides an excellent option for the reconstruction of a mutilated thumb and could be performed advantageously in a single step.