http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Douglas A. Dennis (검색결과 4 건)
- 무료
- 기관 내 무료
- 유료
-
Gap Balancing vs. Measured Resection Technique in Total Knee Arthroplasty
Brian K. Daines,Douglas A. Dennis 대한정형외과학회 2014 Clinics in Orthopedic Surgery Vol.6 No.1
A goal of total knee arthroplasty is to obtain symmetric and balanced flexion and extension gaps. Controversy exists regarding the best surgical technique to utilize to obtain gap balance. Some favor the use of a measured resection technique in which bone landmarks, such as the transepicondylar, the anterior-posterior, or the posterior condylar axes are used to determine proper femoral component rotation and subsequent gap balance. Others favor a gap balancing technique in which the femoral component is positioned parallel to the resected proximal tibia with each collateral ligament equally tensioned to obtain a rectangular flexion gap. Two scientific studies have been performed comparing the two surgical techniques. The first utilized computer navigation and demonstrated a balanced and rectangular flexion gap was obtained much more frequently with use of a gap balanced technique. The second utilized in vivo video fluoroscopy and demonstrated a much high incidence of femoral condylar lift-off (instability) when a measured resection technique was used. In summary, the authors believe gap balancing techniques provide superior gap balance and function following total knee arthroplasty.
-
( Dennis S. Chi ),( Nadeem R. Abu-Rustum ),( Yukio Sonoda ),( Joseph Ivy ),( Eunice Rhee B. A. ),( Kathleen Moore ),( Douglas A. Levine ),( Richard R. Barakat ) 대한산부인과학회 2007 서울심포지움 Vol.12 No.-
Objective: To compare the safety and efficacy of laparoscopic (LSC) staging of ovarian or fallopian tube cancers to staging via laparotomy (LAP) for epithelial ovarian carcinoma (EOC). Study Design: We performed a case-control study of all patients (pts) with apparent stage I adnexal cancers who had LSC staging from 10/00-3/03. The control group consisted of all pts with apparent stage I EOC who had staging via LAP during the same time period. Results: Staging was LSC in 20 pts and via LAP in 30.There were no differences in mean age and body mass index. There were also no differences in omental specimen size and number of lymph nodes removed. Estimated blood loss and hospital stay were lower for LSC, while operating time was longer. There were no conversions to LAP or complications in the LSC group compared with 3 minor complications in the LAP group. Conclusion: In this preliminary analysis, it appears that pts with apparent stage I ovarian or fallopian tube cancer can safely and adequately undergo LSC surgical staging.
-
Genome-wide association study identifies novel breast cancer susceptibility loci
Easton, Douglas F.,Pooley, Karen A.,Dunning, Alison M.,Pharoah, Paul D. P.,Thompson, Deborah,Ballinger, Dennis G.,Struewing, Jeffery P.,Morrison, Jonathan,Field, Helen,Luben, Robert,Wareham, Nicholas Nature Publishing Group 2007 Nature Vol.447 No.7148
Breast cancer exhibits familial aggregation, consistent with variation in genetic susceptibility to the disease. Known susceptibility genes account for less than 25% of the familial risk of breast cancer, and the residual genetic variance is likely to be due to variants conferring more moderate risks. To identify further susceptibility alleles, we conducted a two-stage genome-wide association study in 4,398 breast cancer cases and 4,316 controls, followed by a third stage in which 30 single nucleotide polymorphisms (SNPs) were tested for confirmation in 21,860 cases and 22,578 controls from 22 studies. We used 227,876 SNPs that were estimated to correlate with 77% of known common SNPs in Europeans at r<SUP>2</SUP> > 0.5. SNPs in five novel independent loci exhibited strong and consistent evidence of association with breast cancer (P < 10<SUP>-7</SUP>). Four of these contain plausible causative genes (FGFR2, TNRC9, MAP3K1 and LSP1). At the second stage, 1,792 SNPs were significant at the P < 0.05 level compared with an estimated 1,343 that would be expected by chance, indicating that many additional common susceptibility alleles may be identifiable by this approach.
-
Patellofemoral Crepitus after Total Knee Arthroplasty: Etiology and Preventive Measures
David N. Conrad,Douglas A. Dennis 대한정형외과학회 2014 Clinics in Orthopedic Surgery Vol.6 No.1
Patellofemoral crepitus and clunk syndrome are infrequent, yet troublesome complications of total knee arthroplasty with a reported incidence of 0%−18%. They are primarily associated with implantation of posterior cruciate substituting designs. These entities are the result of peripatellar fibrosynovial hyperplasia at the junction of the superior pole of the patella and the distal quadriceps tendon which becomes entrapped within the superior aspect of the intercondylar box of the femoral component during knee flexion. When the knee extends, a crepitant sensation occurs as the fibrosynovial tissue exits the intercondylar box. Numerous etiologies have been proposed such as femoral component designs with a high intercondylar box ratio, previous knee surgery, reduced patellar tendon length, thinner patellar components, reduced patella-patellar component composite thickness, and smaller femoral components. Preventative measures include choice of femoral components with a reduced intercondylar box ratio, use of thicker patellar components, avoidance of over-resection of the patella, and debridement of the fibrosynovial tissue at the time of knee arthroplasty. Most patients with crepitus are unaware of the problem or have minimal symptoms so that no treatment is required. If significant disability is incurred, symptoms can be eliminated in a high percentage of patients with arthroscopic debridement of the fibrosynovial hyperplasia.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
