종골의 관절 함몰 골절에서 6.5 mm 해면골 나사와 Steinmann 핀을 이용한 치료의 유용성

이기수,강찬,황득수,노창균,이기영,Lee, Gi-Soo,Kang, Chan,Hwang, Deuk-Soo,Noh, Chang-Kyun,Lee, Gi-Young 대한족부족관절학회 2015 대한족부족관절학회지 Vol.19 No.1

Purpose: To report the radiographic and clinical results of 6.5 mm cancellous full threaded buttress screw or Steinmann pin fixation to maintain a reduction of calcaneal posterior facet depression fracture. Materials and Methods: From June 2009 to June 2012, 50 consecutive cases with calcaneal joint depression fracture that underwent open reduction and screw or pin fixation were enrolled in this study. A 6.5 mm cancellous full threaded screw was inserted from the posteroinferior aspect of the calcaneal tuberosity to the posterior facet (group A) or Steinman pin was inserted from the posterosuperior aspect of the calcaneal tuberosity to the calcaneocuboidal joint (group B). Both preoperative and postoperative Bohler and Gissane angles were measured radiographically, and American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot scale on the final follow-up were assessed. Results: The mean age of patients was 44.1 years, and the mean follow-up period was 27.2 months. According to the Sanders classification, 28 cases were type II and 22 cases were type III. In Sanders type II, Bohler and Gissane angles improved significantly from $10.1^{\circ}$ and $126.2^{\circ}$ preoperatively to $27.2^{\circ}$ and $117.1^{\circ}$, respectively, in the immediate postoperative radiograph, and at the final follow-up, $26.6^{\circ}$ and $118.6^{\circ}$, respectively. In Sanders type III, Bohler and Gissane angles improved significantly from $5.0^{\circ}$ and $129.8^{\circ}$ to $29.9^{\circ}$ and $119.3^{\circ}$, respectively, in the immediate postoperative radiograph, and $26.9^{\circ}$ and $120.2^{\circ}$ at the final follow-up. All cases achieved bony union, and the average period until complete union was 13.3 weeks. AOFAS ankle-hindfoot scale was 82.6 in Sanders type II and 77.3 in Sanders type III at the final follow-up. Conclusion: A 6.5 mm cancellous full threaded buttress screw or Steinman pin fixation is a noninvasive treatment method with a merit of being able to maintain the bearing capacity of the posterior facet comparable to plate fixation.

디지털캐릭터 매칭시스템 개발과 개인미디어 활용에 대한 제안

이기수(Gi-Soo Lee),이철영(Chull-Young Yi) 한국애니메이션학회 2006 애니메이션연구 Vol.2 No.2

전위된 관절 내 종골 골절에서 확장된 족근동 접근법을 통한 Kirschner Wire 강선 지지대 고정술의 임상 및 영상학적 결과

이정길(Jeong-Kil Lee),강찬(Chan Kang),김상범(Sang-Bum Kim),이기수(Gi-Soo Lee),황정모(Jung-Mo Hwang),안병국(Byung-Kuk An) 대한정형외과학회 2021 대한정형외과학회지 Vol.56 No.3

목적: 종골 골절 후 발생하는 부정유합으로 인해 체부의 폭이 증가하면 후족부 외측의 통증이 발생한다. 외측벽 돌출을 줄이기 위해 저자들이 고안한 K-강선(Kirschner wire) 지지대의 정복 유지 효과를 임상 및 영상학적 결과로 후향적으로 평가해 보고자 하였다. 대상 및 방법: 2015년 1월부터 2017년 12월까지 전위된 관절 내 종골 골절 환자 중 정복 유지를 위해 K-강선 지지대를 사용한 환자 22명(A군)과 K-강선 지지대를 사용하지 않은 환자 중 A군 환자와 1:2로 짝지은 44명의 환자들(B군)을 대상으로 하였다. 모든 수술은 확장된 족근동 접근법으로 시행되었으며 유관나사와 Steinmann 핀, K-강선을 이용한 내고정술을 시행하였다. 술 후 임상적 평가로는 미국족부족관절학회의 족관절-후족부 수치와 수술 후 운동능력의 회복 정도를 비교하였다. 영상학적 결과는 Böhler 각, Gissane 각, 종골의 높이와 폭, 관절 내 함몰 정도와 종골 외측벽의 돌출 정도를 비교하였다. 또한 두 군의 환자에서 수술 후 발생한 합병증도 분석해 보았다. 결과: 임상적 결과는 두 군 간에 유의미한 차이가 없었다(p=0.924, p=0.961). 영상학적으로 Böhler 각, Gissane 각, 종골의 높이와 폭, 관절 내 함몰 정도에는 유의한 차이가 없었지만(p=0.170, p=0.441, p=0.230, p=0.266, p=0.400), 종골 외측벽의 돌출 정도는 A군이 평균 1.78 mm, B군이 4.95 mm로 유의한 차이가 있었다(p=0.017). B군에서 비복 신경 포착과 통증을 동반한 외골종의 빈도는 더 많았지만 통계적으로 유의한 차이가 없었다(p=0.293, p=0.655). 결론: 임상적 평가 및 영상학적 평가의 대부분과 두 군의 합병증 비교에서 유의한 차이는 없었으나 종골 외측벽의 돌출 정도에 있어서는 A군에서 우수한 결과를 보였다. 저자들이 고안한 K-강선 지지대 수술법은 전위된 관절 내 종골 골절에서 외측벽 돌출의 정복 유지에 효과적인 수술 방법이 될 수 있을 것이다. Purpose: The purpose of this study was to retrospectively evaluate the effect of ‘Blocking Kirschner Wire (K-Wire) Technique’, which has been developed to reduce protrusion of the lateral wall, in maintaining the level of reduction through clinical and radiological outcomes. Materials and Methods: Twenty-two patients with displaced intra-articular calcaneal fractures who used the blocking K-wire to maintain reduction (group A) and 44 patients that did not use blocking K-wire and were paired in 1:2 ratio with those Group A patients (group B), between January 2015 and December 2017 were enrolled in the study. All surgical procedures were performed via the extended sinus tarsi approach, and internal fixation using cannulated screws, Steinmann pins and K-wires was performed. American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot scale and postoperative recovery of exercise ability were compared for postoperative clinical outcomes. The radiological results were compared the Böhler angle, Gissane angle, calcaneal height and width, step off of posterior calcaneal joint, and the degree of protrusion of the lateral wall. Moreover, postoperative complications in both groups were compared. Results: There were no significant differences in the clinical outcomes of the two groups (p=0.924, p=0.961). The amount of Böhler angle, Gissane angle, calcaneal height and width, and step off of posterior calcaneal joint from the radiological results was not significantly different between the two groups (p=0.170, p=0.441, p=0.230, p=0.266, and p=0.400). However, the degree of protrusion of the lateral wall was 1.78 mm and 4.95 mm in group A and group B, respectively, and the difference between the two groups was significant (p=0.017). Although sural nerve entrapment and painful exostosis were more frequent in group B, they were occurred in a non-significant manner (p=0.293, p=0.655). Conclusion: Most of the clinical and radiological results as well as the complications were not significantly different between the two groups. However, the degree of protrusion of the calcaneus lateral wall in group A was promising. The ‘Blocking K-Wires Technique’ established by the authors may be an effective surgical option for maintaining the reduction of the lateral wall protrusion in displaced intra-articular calcaneal fractures.

근접센서를 이용한 비접촉 방식의 출입문 감지제어 시스템

김승수(Kim sung soo),이기수(Lee gi soo),안청모(Ahn Cheong Mo),유주현(Yoo Ju Hyon) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-

Number of subway train units that Seoul Metropolitan Subway Corporation as at September 2005 is 1,944 on 4 routes from 60 units at the time of commencement of operation, having grown exponentially. Along with increase in the number of passengers the role of subway as safer and expedient means of transportation is now being required. Furthermore, the Corporation has been researching on means of improving the safety and reliability of subway entry/exit doors which has become an essential task and directly effect the safety of the passengers. In this Study, has developed sensory control system for the entry/exit door of the subway train using non-contact proximity sensor as a part of review of and measures against various issues of entry/exit door of the subway trains currently under operation. In addition, this sensor system was verified through test production and tests. If this technology becomes commercialized and practically utilized in the future, it would be able to make definite contribution to the safer transportation of passengers.

인공 고관절 전치환술 후 발생한 치환물 주위 종괴

전유선 ( Yoo Sun Jeon ),황득수 ( Deuk Soo Hwang ),강찬 ( Chan Kang ),김의창 ( Eui Chang Kim ),이기수 ( Gi Soo Lee ),송재황 ( Jae Whang Song ) 대한고관절학회 2012 Hip and Pelvis Vol.24 No.3

대퇴 비구 충돌과 동반된 비구순 파열의 관절경적 비구순 봉합술 -초기 2-5년 추시 결과-

전유선 ( Yoo Sun Jeon ),황득수 ( Deuk Soo Hwang ),강찬 ( Chan Kang ),황정모 ( Jung Mo Hwang ),이기수 ( Gi Soo Lee ) 대한고관절학회 2013 Hip and Pelvis Vol.25 No.2

목적: 대퇴 비구 충돌 및 비구순 파열로 진단받고 관절경적 비구순 봉합술을 시행한 환자들의 단기 추시 후 결과를 보고하고자 한다. 대상 및 방법: 2008년부터 2010년까지 대퇴 비구 충돌 및 비구순 파열로 진단받고 관절경적 비구순 봉합술을 시행한 45명을 대상으로 하였다. 임상 결과는 modified Harris hip score (MHHS), 통증 점수(VAS), hip outcomes score (HOS) 및 환자 만족도를 이용하였다. 결과: 남자 22명, 여자 23명이었고, 평균 나이는 33.0세(16-54세), 평균 추시 기간은 26.7개월(24-56개월)이었다. 임상적 결과로 VAS는 수술 전 평균 6.4점에서 수술 후 평균 2.5점, MHHS는 수술전 평균 59.5점에서 수술 후 평균 85.4점으로 호전되었고, HOS의 일상 생활척도와 운동 척도가 각각 수술 전 평균 58.3%, 51.2%, 수술 후 평균 83.0%, 79.8%이었다. 재수술을 시행한 경우는 5예(12.1%)로 비구순 부위의 활액막 증식에 의한 유착이 3예, 봉합 나사못이 빠진 경우가 1예, 이소성 골화가 1예 관찰되었다. 결론: 관절경적 비구순 봉합술은 대퇴 비구 충돌과 동반된 비구순 파열의 치료로 효과적인 방법으로 생각된다. Purpose: The purpose of this study is to report on the short term follow-up of patients who underwent arthroscopic acetabular labral repair for femoroacetabular impingement and acetabular labral tear.. Materials and Methods: A total of 45 consecutive patients who underwent arthroscopic acetabular labral repair after diagnosis of femoroacetabular impingement and acetabular labral tear from January 2008 to December 2010 were included in this study. Modified Harris hip score (MHHS), VAS, Hip outcomes score (HOS), and patient satisfaction were used for evaluation of the clinical results. Results: Patients included 22 males and 23 females, and the mean age of the patients was 33.0(range, 16-54) years old, and the mean follow up period was 26.7(range, 24-56) months. Of the clinical results, mean VAS score was 6.4 and 2.5 points before and after surgery, respectively, and mean MHHS score improved from 59.5 points before surgery to 85.4 points after surgery. Activities of daily living and sports-related activities of HOS were 58.3% and 51.2%, respectively, before surgery, and 83.0% and 79.8% after surgery. Revision arthroscopic surgery was performed on five cases(12.1%); labro-synovial adhesion, three cases, pull-out of suture anchor, one case, heterotropic ossification, one case. Conclusion: Arthroscopic acetabular labral repair is considered an effective treatment for femoroacetabular impingement and accompanying acetabular labral tear.

대퇴 비구 충돌 환자의 관절경적 치료: 5-7년 추시 결과

강찬 ( Chan Kang ),황득수 ( Deuk Soo Hwang ),전유선 ( Yoo Sun Jeon ),한순철 ( Sun Cheol Han ),이기수 ( Gi Soo Lee ),강동훈 ( Dong Hun Kang ) 대한고관절학회 2012 Hip and Pelvis Vol.24 No.3

관절경을 이용한 고관절의 이차성 퇴행성 관절염의 관절 운동 제한에 대한 회복

김의창 ( Eui Chang Kim ),황득수 ( Deuk Soo Hwang ),강찬 ( Chan Kang ),전유선 ( Yoo Sun Jeon ),이기수 ( Gi Soo Lee ) 대한고관절학회 2013 Hip and Pelvis Vol.25 No.2

목적: 고관절 조기 퇴행성 관절염에 의한 관절 운동 제한을 보이는 환자에서 관절경적 소견과 치료 결과에 대하여 알아보고자 하였다. 대상 및 방법: 2009년 5월부터 2010년 3월까지 고관절 조기 퇴행성 관절염에 의한 관절 운동 제한을 보이며 대퇴비구 충돌 증상을 보이는 환자 중 관절경 치료를 시행 받은 13예를 대상으로 분석하였다. 두-경부 오프셋, 전염각, 수술 전후의 알파 각 변화를 비교하였고 최종 추시상 VAS, 변형된 Harris 고관절 점수, 운동 범위를 비교하였다. 결과: 관절경 상 모든 예에서 활액막염 소견이 있었으며 비구순 파열은 9예에서 동반되었으며 퇴행성 파열을 보였고 2예에서 비구순의 변형을 보였다. VAS는 술 전 7.5에서 최종 추시상 1.8로, 변형된 Harris 점수는 술 전 49.3(35-60)에서 90.1(85-95)로 호전되었다. 평균 관절 운동 범위는 굴곡은 술 전 95.2°(60-120°)에서 술 후 127.7°(110-140°)로, 내회전은 4.6°(-5-25°)에서 25.4°(15-30°)로 유의한 호전을 보였다. 결론: 고관절 조기 퇴행성 관절염에 의한 운동 제한을 보이는 대퇴 비구 충돌 환자는 관절경적 치료를 통하여 굴곡 및 내회전의 관절 운동 범위 향상을 기대할 수 있었다. Purpose: To analyze the arthroscopic findings and treatment results of patients with a limitation of hip motion caused by early degenerative osteoarthritis. Materials and Methods: Retrospective analysis was performed on 13 patients who underwent arthroscopic treatment from May 2009 to March 2010, among patients with a limitation of hip motion and femoroacetabular impingement symptoms by early degenerative osteoarthritis. Head-neck offset, anteversion, and a change in the alpha angle was compared. At the final follow up, the VAS (Visual analogue scale), modified Harris hip score, and range of motion were compared. Results: The arthroscopic findings showed diffused synovitis in all 13 cases. Among them, 9 cases were accompanied with a labral tear, and 2 cases showed a labral deformity. The VAS decreased from 7.5 preoperatively to 1.8 postoperatively and the modified Harris hip score improved from 49.3(35-60) before surgery to 90.1(85-95) after surgery. Each flexion and internal rotation improved significantly (P<0.05) from 95.2°(60-120°) to 127.7°(110-140°) and 4.6°(-5-25°) to 25.4°(15-30°), respectively. Conclusion: This study shows that the arthroscopic treatment of femoroacetabular impingement with a limitation of the range of motion by early degenerative arthritis can be expected with an improvement in flexion and internal rotation of the hip.

경추 척수증에서 후궁 확장 형성술의 수술 중, 수술 후 합병증에 따른 임상적 결과 비교

안재성(Jae-Sung Ahn),이준규(June-Kyu Lee),이기수(Gi-Soo Lee),신병건(Byung-Kon Shin) 대한정형외과학회 2013 대한정형외과학회지 Vol.48 No.5

목적: 경추 척수증 환자에서 후궁 성형술 후 발생한 합병증이 임상적 결과를 변화시키는지 비교 분석하고자 한다. 대상 및 방법: 경추 척수증으로 2006년 3월부터 2011년 3월까지 충남대학교병원에서 후궁 확장 성형술 시행받은 환자 중 최소 2년 이상 추시한 총 152예를 대상으로 했고, 평균 추시 기간은 39.7개월이었다. 후궁 확장 성형술 중 경첩 골절이 발생해 금속판 고정술을 한 경우 또는 술 후 자연적 후궁 간 유합이 발생한 경우를 A군, 그렇지 않은 경우를 B군으로 나누었고 visual analogue scale score (VAS) 및 Neck Disability Index (NDI)로 측정하였다. 결과: A군 중 술 중 경첩 골절에 따른 금속 고정술은 11예, 술 후 자연적 후궁 간 유합 발생은 20예였다. 술 전 평균 VAS score는 A군 7.52점, B군 7.26점, 술 후 A군 2.87점, B군 3.03점이었다. NDI는 A군 술 전 평균 74.32%, 술 후 평균 43.84%였으며, B군 술 전 평균 75.74%, 술 후 평균 45.36%였다. 두 군 모두 술 후 추시에서 VAS score 및 NDI에는 유의한 차이 없었다. 결론: 후궁 확장 성형술 중 발생한 경첩 골절에 따른 금속판 고정 또는 술 후 자연적 후궁 간 유합 합병증이 발생된 예에서 임상적 결과는 유의한 차이가 없었다. Purpose: The purpose of this study is to compare and analyze the clinical results according to the complications occurring after laminoplasty for cervical myelopathy patients. Materials and Methods: Among patients diagnosed as cervical myelopathy, 152 cases in which patients underwent cervical laminoplasty from March 2006 to March 2011 from Chungnam National University Hospital and had follow-up for at least two years were selected for the study, and the mean follow-up period was 39.7 months. The cases were divided into two groups; cases that underwent plate fixation for hinge fracture during cervical laminoplasty or showed postoperative spontaneous interlamina fusion were included in group A and cases that did not show such complications were included in group B. Clinical results were measured using visual analogue scale (VAS) score and Neck Disability Index (NDI) preoperatively, postoperatively, and on the final follow-up. Results: Among 152 cases, 31 cases were included in group A and 121 cases in group B. Group A consisted of 11 cases of fixation due to intraoperative hinge fracture and 20 cases of postoperative spontaneous interlamina fusion. Mean preoperative VAS score was 7.52 in group A and 7.26 in group B, and mean postoperative VAS score was 2.87 in group A and 3.03 in group B. Mean NDI improved from 74.32% preoperatively to 43.84% postoperatively in group A and 75.74% preoperatively to 45.36% postoperatively in group B. In both groups, on postoperative follow-up, no significant difference of VAS score and NDI was found and both showed improvement compared to before surgery. Conclusion: The clinical results of cases that underwent plate fixation for hinge fracture that occurred during cervical laminoplasty and postoperative spontaneous interlamina fusion showed no significant difference compared to cases that did not show any complications.

정전 사고 시 ESS를 이용한 풍력발전기 유효전력 변동 최소화 제어

송택규(Song Taek Gyu),심지섭(Ji Seop Sim),이기수(Gi Soo Lee),주영훈(Young Hoon Joo) 대한전기학회 2017 정보 및 제어 심포지엄 논문집 Vol.2017 No.10