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종골 골절 시 골절편에 의해 발생한 비복 신경의 포착(1예 보고)
이윤태,이태진,김성환,윤한국,Lee, Yun-Tae,Lee, Tae-Jin,Kim, Sung-Hwan,Yoon, Han-Kook 대한족부족관절학회 2011 대한족부족관절학회지 Vol.15 No.1
Sural nerve is a sensory nerve that innervates the lateral side of ankle and foot, and the injury of this nerve can be usually caused by surgical approch of calaneal fracture or achilles tendon injury. Entrapment neuropahty of sural nerve caused by bony fragment after calcaneal fracture is not reported, yet. Authors experienced one case that sural nerve injury due to bony fragment after calcaneal fracture and we regard that it is a rare case, so we report this case after reviewing literatures.
종골의 관절 내 골절에서 외측 광범위 도달법을 이용한 F형 금속판 고정술과 잠김 금속판 고정술의 비교
이윤태,오현철,윤한국,장재원,장기준,Lee, Yun-Tae,Oh, Hyun-Cheol,Yoon, Han-Kook,Jang, Jae-Won,Jang, Ki-Jun 대한족부족관절학회 2012 대한족부족관절학회지 Vol.16 No.3
Purpose: To evaluate the radiological and clinical results after open reduction and internal fixation with calcaneal F plate and locking calcaneal plate using lateral extensile approach in the treatment of intra-articular calcaneal fracture Materials and Methods: This study included 34 cases of 33 patients followed up for at least 6 months postoperatively. F plate was applied in 18 cases (Group 1), locking plate was used in 16 cases (Group 2) and compared radiological and clinical results between two groups. Results: Radiollogically, the mean Bohler angle was improved from $5.5^{\circ}$ preoperatively to $20.1^{\circ}$ postoperatively and $18.8^{\circ}$ at the last follow up in group 1 and $8.6^{\circ}$ preoperatively, $21.4^{\circ}$ postoperatively and $20.3^{\circ}$ at last follow up in group 2. Bone union was observed in all cases and 4 cases of screw loosening were noted in Group 1 with extended fracture to anterior process. At the last follow up, both groups showed clinical results in American orthopedic foot and ankle society ankle hindfoot score, 76(77 in Sanders type II and 75 in type III) in group 1 and 72(73 in type II and 70 in type III) in group 2. Conclusion: F plate and locking plate showed firm fixation and satisfactory clinical results in the treatment of intra-articular calcaneal fracture. We suggest applying locking plate in cases with extended fracture to anterior process, considering screw loosenings in those who were treated with F plate fixation.
이윤태,김철,박상훈,기정혜,Lee, Yun-Tae,Kim, Chul,Park, Sang-Hoon,Kie, Jeong Hae 대한근골격종양학회 2013 대한골관절종양학회지 Vol.19 No.1
고대 신경초종(ancient schwannoma)은 신경초종의 변이(variant)로서 천천히 자라나고 퇴행성 변화를 동반한 양성종양으로 알려져 있다. 또한 신경초종은 신전부에서는 상대적으로 드물게 발생하는 것으로 보고되어 왔다. 저자들은 50세 남자 환자의 상완 신전부 삼두근에서 발생한 고립성 고대 신경초종을 경험하였기에 이를 보고하고자 하였다. Ancient schwannoma is a variant of schwannoma and is characterized slowly growing tumor with degenerative change. And it is reported that schwannoma is relatively rare in extensor area. As a rare cause of solitary ancient schwannoma in extensor area of upper arm, we report it.
커패시턴스 오차가 아날로그 디지털 변환의 정확도에 미치는 영향
이윤태,김충기,경종민,Lee, Yun-Tae,Kim, Chung-Gi,Gyeong, Jong-Min 대한전자공학회 1985 전자공학회지 Vol.22 No.5
The e(lect of capacitance error on the A/D conversion accuracy in the A/D converter using binary-weighted capacitor array was scruntized. Besides the Monte-Carlo method considering the inter-capacitance ratios as random variables, " correlation approach" con-sidering the correlation coefficient between capacitances is proposed in this paper. Bt was observed by the measurement of capacitances of monolithic MO5 capacitors that the correla-tion coefficient between capacitors decreases as the capacitor size incrrases. It was also verified that the parallel connection of unit capacitors and the common centroid layout scheme signi(icantly increase the inter-capacitance correlation coefficients.
말초 혈관 폐쇄성 질환이 있는 당뇨족에서 절단술시 시행한 풍선 혈관 성형술
이윤태(Yun Tae Lee),김성민(Seong Min Kim),유주형(Ju Hyung Yoo),오현철(Hyun Cheol Oh),하중원(Joong-Won Ha),성승용(Seung Yong Sung),장지훈(Jee-Hoon Chang),윤한국(Han Kook Yoon) 대한정형외과학회 2009 대한정형외과학회지 Vol.44 No.5
하지의 주요 혈관의 폐쇄에 따른 괴저나 화농성 감염 발생 시에는 절단술을 고려해야 한다. 특히 말초 혈관 폐쇄성 질환은 당뇨가 동반된 경우에 절단술 시행 확률이 더 높으며, 수술 후에도 절단단의 괴사나 혈종, 감염 등의 합병증으로 인한 재수술의 가능성 역시 당뇨가 없는 경우보다 높다. 본 증례에서는 당뇨족이 동반된 말초 혈관 폐쇄성 질환에서 절단술을 시행할 경우 절단단의 상처 치유를 향상시키기 위해 수술 중 절단 부위에 풍선혈관 성형술을 시행하였고, 절단단의 조기 상처 치유를 경험하였기에, 문헌 고찰과 함께 보고하는 바이다. Amputation should be considered for the patients with limb necrosis or infection due to major vessel obstruction combined with diabetes. Patients with peripheral artery occlusive disease combined with diabetes have a higher risk of amputation and a higher possibility of reoperation than those patients without diabetes because of complications that include hematoma, infection and necrosis of the stump. We report here on 2 cases for which balloon angioplasty was used to promote wound healing on the stump site during amputation, and the patients had peripheral artery occlusive disease with a diabetic foot. The wounds healed early without complication in both cases.
체외 충격파 치료를 이용한 견관절 석회화 건염의 치료 효과
이윤태 ( Yun Tae Lee ),박준영 ( Jun Young Park ),성사현 ( Sa Hyun Soung ),박상훈 ( Sang Hoon Park ) 대한스포츠의학회 2015 대한스포츠의학회지 Vol.33 No.1
To evaluate the functional and radiologic outcomes of extracorporeal shock wave therapy (ESWT) in shoulders with chronic calcific tendinitis. We report a retrospective study to compare the outcome after ESWT (group l, 15 cases) with the effect of medication treatment (group 2, 15 cases) in patients with chronic calcific tendinitis. Patients were aged 42 to 58 years, mean of 48 years and treated with extracorporeal shock waves or medication from September 2012 to May 2014. The ESWT was performed six cycles of shock waves, weekly treatment for the three cycles and the rest cycles after 2 weeks of pause. In the same period, there were 12 women and 3 men treated with medication treatment for calcific tendinitis. The clinical outcomes were evaluated according to Constant and Murley score and pain visual analogue scale. Radiologic evaluation was performed to confirm disintegration of calcific deposits 3 months and 6 months after treatment. Clinical outcomes were significantly improved in ESWT group, and there was significant difference between ESWT group and medication group. In radiographic evaluation, the calcific deposit was significantly decreased in ESWT group. ESWT therapy is more effective to achieve functional improvement and to alleviate pain in the patients with calcific tendinitis of the shoulder.
경골 종지부를 분리하지 않은 자가슬괵건을 이용한 관절경적 전방십자인대 재건술
김성재,이윤태,김현곤,Kim Sung-Jae,Lee Yun-Tae,Kim Hyun-Kon 대한관절경학회 1997 대한관절경학회지 Vol.1 No.1
This article describes a modified arthroscopic technique of anterior cruciate ligament (ACL) reconstruction using quadrupled hamstring tendon graft. The autogenous semitendinosus and gracilis grafts are harvested without detachment of the tibial insertion. To obtain longer graft, the accessory tibial insertions of the hamstring tendons are dissected. The EndoButton(Acupex Microsurgical, Andover, MA) is used for femoral fixation and two spiked staples are used for tibial fixation in a belt buckle fashion. Then the residual anterior laxity is restored by additional absorbable interference screw fixations. In this technique. more viable graft is obtained and firmer distal fixation is achieved by preservation of the tibial insertion of hamstring tendons.