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단순 방사선 촬영을 이용한 인공슬관절 전치환술전 하지축 계측의 표준화에 대한 고찰
안택진,김종관,안병우,박찬협 ( Teck Jin Ahn,Jong Kwan Kim,Byoung Woo Ahn,Chan Hyup Park ) 대한슬관절학회 1994 대한슬관절학회지 Vol.6 No.2
Long term success after total knee arthroplasty(T.K.P,) is dependent on several factors, especially proper intraoperative component positioning. Numerous TKR alignment systems including intramedullary and extramedullary instruments are considered by many authors to be reliable methods of producing proper component positioning, Standardization of preoperative radiograghy for TKR is essential to getting appropriate axial alignment after components positioning. So, we nwde AP and laterg radiograghs of entire lower extremity with the voluteer standing and included not only intraoperative femur A-P and lateral films into this study, but also A-P and lateral radiograhgs of 40 cadaveric femoral skeletons. Analysis of those radiograhgs led us to the following results. 1. The volunteer is positioned with both posterior condylar surfaees at the same level (neutral rotation), Jn neutral rotation, the line crossing bimdleolor tips is rotated average 24.6+-2.6degrees extemally. 2. On A-P radiogragh, the knee ceriter is a point on the apex of the femoral notch on A-P radiograph and on the center of stem of femoral prosthesis template is positioned in place after sizing on the lateral film. 3. Mechanical axis crosses knee center and the center of femoral head either on A-P radiograph or on laterat fdm. 4. Anatomical axis crosses the apex of femoral natch and the center between inner cortex surface of the femoral isthmus on AP radiograph. On lateral radiograph, anatomic axis crosses a point 4mm anterior to posterior cortical inner surface paralleling the mechanical axis. 5. Entry point of intramedully rod is a point that is about 8.2mm+-1.9mm anterior to the border of femoral intercondylar notch through which the anatomic axis crosses distal knee surface on lateral film.
연골 육종에서 핵산 함량분석과 임상병리학적 예후인자들간의 비교 연구
안택진,장의찬,강수용,이은우 중앙대학교 의과대학 의과학연구소 1993 中央醫大誌 Vol.18 No.4
In a restrospective study of 26 chondrosarcomas, the prognostic significance of the cellular DNA content and different clinicopathologic factors was analyzed both separately and in combination. The relationship between these parameters was also investigated. The results were as follows; 1. There were statisticaly significant correlations between 5 year-survival rate to DNA ploidy, and clinicopathological findings such as tumor location, histologic gradings. 2. Relationship with DNA ploidy could be domonstrated not only between grade Ⅰ and grade Ⅱ, but also between distal and proximal cases. There were, however, not statistical correlations between DNA ploidies and tumor size. 3. Histologic grading was not associated with tumor size and tumor location. 4. Although the results indicated that DNA ploidy probably is not best indicator of the clinical course in chondrosarcoma, but combination of DNA ploidy with clinicopathologic factors including tumor location and histologic grandings seem to provide additional prognostic information. In conclusion, although any of the prognostic factors is not decisive, combined consideration of all these factors seems to provide not only valuable prognostic information, but also guidlines for treatment.
이은우,정영복,안택진 대한슬관절학회 1989 대한슬관절학회지 Vol.1 No.2
Anteroposterior radiographs of lower extremity of thirty normal males were obtained to assess the lower extremity axial alignment. The radiographs included the entire lower extremity with tbe volunteers one-legged standing and two-legged standing separately These radiographs were analyzed by drawing points, lines, and angles and measuring the relationship. The estimated distribution of joint loading obtained from one legged standing radiographs was compared with the from two legged standing radiographs. The radiographic analysis led to the following results: 1. The angle at the knee between the femoral and tibial mechanical axis was a mean fo 177.3 ± 2.5 (right) and 177.5 ± 2.8 (left). 2. The mean angle of the tibial mechanical axis transecting the knee transverse axis was 4.2 ± 1.7 degrees (right and 3.8 ± 2.0 degrees (left) of varus alignment. 3. The mean angle of the femoral mechanical axia transecting the line tangent to the distal femal condyles was 3.2 ± 2.0 degrees (right) and 3.3 ± 1.8 (left) of valgus alignment. 4. The line drawn down the shaft of the femur, commonly thought of as the femoral anatomical axis, actually intersected with the femoral mechanical axis in the supracondylar region of the femur. 5. The mechanical axis of the right lower extremity, that is a line from the center of the femoral head to the center of the ankle, passed mean 9.9 ± 2.62 mm medial to the knee center in two-legged standing radiographs and mean 14.1 ± 2.82 mm in one- legged standing radiographs.
Rush정을 이용한 상완골 간부골절 치료 : 다발성 손상과 동반된 예를 중심으로 In the Cases of Multiple Trauma Patient
이상엽,김수원,김종관,안병우,안택진 대한골절학회 1996 대한골절학회지 Vol.9 No.4
There are many methods to treat humeral shaht fracture. Various of humeral shaft fracture in multiple trauma patients were treated by intramedullary stabilization wi(h Rush nail. We reviewed twenty two patients who were treated with Rush nail in Masan Samsung Hospital from August, 1990 to May, 1995. The purpose of this study is to report the results and know whether Rush nailing is recommendable in multiple trauma patients. The results were as follows: 1. The most common type of fracture was comminuted with large displaced fragment type (11 cases, 47.8%), mast common site was distal one third of shaft(IO cases, 43.5%). 2. The average operation lime was about 40 minutes. 3. The average time of radiological bone union was about l4 weeks. 4. Complications were 5 cases of mild joint stiffness (2 cases in shoulder and 3 cases in elbow), 5 cases of nonunion, 5 cases of angulation deformity( average 7 degree) and 2 cases of nail migration. We had satisfactory functional outcome rated by Stewart and Hundiy. In spite of some complication. we think that Rush nailing can be applied safely and effectively to humeral shaft fractures associated with multiple injury.