Introduction To gain a better understanding of the progression of coronary artery bypass grafting (CABG) and its impact on clinical practice, bibliometric citation analysis can be performed. Bibliometric citation analysis is a method of determining the most influential papers on a topic based on several citations and impact factor. Method A search of the Thomson Reuters Web of Science citation indexing database and research platform was completed using the terms “CABG,” “Coronary artery bypass graft,” “Coronary artery,” “bypass,” and/or “bypass grafting.” The returned dataset was sorted by the number of citations. Results The search yielded a total of 11 560 papers which were ranked in order of citations. New England Journal of Medicine published the most papers in the top 100 and generated the most significant number of citations with 20 papers in total followed by Journal of the American College of Cardiology. It also has the highest impact factor and 5‐year impact fact in 2007 of 79.26 and 67.513, respectively. Conclusion The most cited manuscripts by Serruys et al described a randomised trial comparing percutaneous coronary intervention and CABG for treating severe coronary artery disease. This work provides the most influential references related to CABG and serves as a guide as to the area of focus in CABG.

Patellofemoral pain (PFP) is a common musculoskeletal complaint. It has been suggested that hip adduction creates a load on the iliotibial band and causes lateral displacement of the patella (patella tilt). However, data gathered in a previous study were derived from a small sample of males, while the condition predominantly affects females. We assessed the relationship between hip adduction and patellar position with a larger sample size, including males and females. [Participants and Methods] Forty healthy, asymptomatic females and males (age 21.5 ± 1.3 years) were recruited. Their knees were passively flexed by 20°. Using ultrasound, the distance between the lateral edge of the patella and the lateral condyle of the femur was measured in the neutral position and at 20° adduction. [Results] Hip adduction produced a smaller patella-lateral femoral condyle measurement than in the neutral position. The mean difference in the patella-condyle distance between the neutral position and 20° hip adduction was 0.18 cm. No statistically significant difference was found between the right and left limbs, genders, Tegner scores, or BMI of the study participants. [Conclusion] The results of the study showed that hip adduction causes lateral displacement of the patella. Ultrasound is an effective means of assessing patella tilt.

This bibliometric analysis aims to identify publications and highlight the key areas that have shaped modern clinical practices for aortic valve replacement (AVR). In this paper, the top 100 most cited manuscripts for AVR are analyzed. The Thomson Reuters Web of Science database was searched using the terms "aortic valve replacement," "AVR," "sAVR," "tAVR," or "TAVI." The results were ranked by citation number and the top 100 articles were further analyzed by evaluating the subject, author, journal, year of publication, institution, and country of origin. Thirty-thousand and eight hundred eligible papers were examined, with an accumulation of 81 851 citations in total and a mean citation of 819 per manuscript (ranged: 344-4180). The New England Journal of Medicine A search was completed on the Thomson Reuters Web of Science citation indexing database using the search terms "aortic valve replacement," "AVR," "sAVR," "tAVR," or "TAVI." The search was limited to full manuscripts in English and includes publications from 1970 to 2020. The manuscripts were sorted by the number of citations. The resulting list was then divided by the manuscripts' year of publication. This method was initially developed by Paladugu et al and replicated by O'Sullivan et al, Kavanagh et al, and Chan et al 2-5 Due to the surge in AVR performed using the transcatheter approach by cardiologists and cardiac surgeons, this research identifies the top five most cited papers for TAVI and AVR. The top 100 articles obtained were further analyzed by looking at the journal, authorship, institution, country, year of publication, article type and topic. Only full manuscripts were considered in this study; letters to the editor and correspondences were excluded. The generated total citation count was inclusive of articles indexed in the

Background Patellofemoral pain syndrome (PFPS) is one of the most common musculoskeletal complaints seen in outpatient settings. It has been suggested that hip adduction creates loads on the iliotibial band and causes lateral displacement of the patella (patellar tilt), which can lead to uneven patellofemoral joint loading, and hence, cause patellofemoral pain. In previous studies in the literature, ultrasound has been used to measure lateral patellar displacement. However, the method lacks validity data. Purpose/Hypothesis The aim of this study was to validate the use of ultrasound to measure lateral displacement of the patella, by comparing the position of the patella as measured first by ultrasound, and then by direct measurement. Study Design Descriptive Laboratory Study. Methods Nine soft-fixed cadavers were used in this study. The cadavers had been donated for anatomical examination and research under the Human Tissue Act (2004). The distance between the lateral femoral condyle and the lateral edge of the patella were measured by B-mode real-time ultrasound, and then by direct measurement, in two positions, neutral and at 20° hip adduction. Results The mean difference in the patella-to-lateral femoral condyle distance in the neutral position and at 20° adduction was 0.27 cm (ultrasound), and 0.34 cm (direct measurement), respectively. There were no significant differences between the measurements obtained by US and by direct measurement (Pearson correlation= 0.97, p=0.83). Conclusion Ultrasound is a valid and reliable method for measuring patellar position relative to the femoral condyle, and the validity data reported here suggest that it can be used with confidence in clinic to assess lateral patellar displacement. Level of Evidence 3

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