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The Impact of Learning Curve on Flap Thickness Outcome in Femtosecond Laser-assisted Laser In Situ Keratomileusis Performed with New LenSx Dual Platform

Asena BS, Donmez O

Purpose: To evaluate the effect of learning curve on flap thickness (FT) outcome in femtosecond (FS) laser-assisted laser in situ keratomileusis (LASIK) operation for myopia performed with recently introduced LenSx...
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Cumulative Sum Analysis of the Learning Curve of Free Flap Reconstruction in Head and Neck Cancer Patients

Han SH, Kim YC, Kwon TK, Lee DY

Objectives. Owing to the functional and structural complexity of the head and neck area, the reconstruction of defects in these areas is challenging. Free flap surgery has become standard for...
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The learning curve and difficult points of the O-RADS ultrasound risk stratification system in 54 trainees

Zhou S, Guo Y, Wen L, Zhao B, Liu M

Purpose: This study aimed to evaluate the learning curve and explore the difficult points of the Ovarian-Adnexal Reporting and Data System (O-RADS) ultrasound risk stratification system. Methods: One hundred adnexal masses...
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Learning curve for single-port robot-assisted rectal cancer surgery

Choi MS, Yun SH, Oh CK, Shin JK, Park YA, Huh JW, Cho YB, Kim HC, Lee WY

Purpose: We analyzed the learning curve of single-port robotic (SPR)-assisted rectal cancer surgery. Methods: Fifty-seven consecutive SPR-assisted rectal cancer surgery cases performed by the same surgeon were considered in surgical interventions...
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Learning Curve for Thoracoscopic Repair of Congenital Diaphragmatic Hernia Using Cumulative Sum Analysis

Ha SW, Ha S, Kwon H, Kim DY, Namgoong JM

Purpose: Thoracoscopic repair of congenital diaphragmatic hernia (CDH) is technically challenging and requires various surgical strategies. However, studies investigating the learning curve of thoracoscopic repair of CDH are rare. The...
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Detection of Rotator Cuff Tears by Ultrasound: How Many Scans Do Novices Need to Be Competent?

Kim DM, Seo JS, Jeon IH, Cho C, Koh KH

Background: Ultrasound is commonly used for evaluating rotator cuff tears. However, little training in ultrasound imaging is provided during orthopedic residents’ training period. Therefore, we performed this study to determine...
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Effect of training and individual operator’s expertise on prostate cancer detection through prostate biopsy: Implications for the current quantitative training evaluation system

Lee D, Chung BH, Lee KS

Purpose: This study was conducted to evaluate the relevance of training and experience to gaining expertise in prostate biopsy based on an assessment of outcomes from the performance of urology...
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Cumulative Sum Analysis of the Learning Curve of Ptosis Surgery: External Levator Advancement versus Müller Muscle-conjunctival Resection

Mangan MS, Cakir A, Imamoglu S

Purpose: Even though it is stated that external levator advancement (ELA) has a much longer learning curve than Müller muscle-conjunctival resection (MMCR) in the treatment of aponeurotic ptosis, there is...
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The Learning Curve for Peroral Endoscopic Myotomy in Latin America: A Slide to the Right?

Kahaleh M, Tyberg A, Suresh S, Lambroza A, Casas FR, Rey M, Nieto J, Martínez GM, Zamarripa F, Arantes V, Porfilio MG, Gaidhane M, Familiari P, Carames JC, Vargas-Rubio R, Canadas R, Hani A, Munoz G, Castillo B, Moura ET, Galileu FF, Lukashok HP, Robles-Medranda C, Moura EGd

Background/Aims: Per oral endoscopic myotomy (POEM) has been increasingly used for achalasia in Latin America, where Chagas disease is prevalent, and this makes POEM more challenging. The aim of this...
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Learning Curve and Complications Experience of Oblique Lateral Interbody Fusion : A Single-Center 143 Consecutive Cases

Oh BK, Son DW, Lee SH, Lee JS, Sung SK, Lee SW, Song GS

Objective : Oblique lateral interbody fusion (OLIF) is becoming the preferred treatment for degenerative lumbar diseases. As beginners, we performed 143 surgeries over 19 months. In these consecutive cases, we...
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Surgical outcomes of perihilar cholangiocarcinoma based on the learning curve of a single surgeon at a tertiary academic hospital: A retrospective study

Park HJ, Han DH, Choi GH, Choi JS

Backgrounds/Aims: Although it is difficult to master the surgical learning curve for treatment of perihilar cholangiocarcinoma (HCCA), there have been no studies on surgical outcomes between a novice and an...
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Impact of the Learning Curve on the Survival of Abdominal or Minimally Invasive Radical Hysterectomy for Early-Stage Cervical Cancer

Li LY, Wen LY, Park SH, Nam EJ, Lee JY, Kim S, Kim YT, Kim SW

Purpose The objective of this study was to define the learning curve required to attain satisfactory oncologic outcomes of cervical cancer patients who were undergoing open or minimally invasive surgery...
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Fibula Fracture: Plate versus Nail Fixation

Bäcker HC, Vosseller JT

Background: Intramedullary fixation has only uncommonly been used in the fibula although it may confer some advantages. Our goal was to investigate a single surgeon’s learning curve with initial usage...
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Learning curve of various type of male urethroplasty

Choi J, Lee CU, Sung HH

Purpose: To determine the number of cases required to achieve a specified recurrence-free rate (>80%) among urethroplasty types. Materials and Methods: A retrospective analysis of consecutive patients, who underwent urethroplasty performed...
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Resident Learning Curve for Laparoscopic Appendectomy According to Seniority

Kim CW, Jeon SY, Paik B, Bong JW, Kim SH, Lee SH

Purpose: To delineate the learning curve (LC) for laparoscopic appendectomy (LA) performed by residents according to seniority in training. Methods: Between October 2015 and November 2016, 150 patients underwent LA by...
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Uncut Roux-en-Y gastrojejunostomy after totally laparoscopic distal gastrectomy: Learning curve and surgical outcomes

Kim A, Yoo MW

Purpose: Totally laparoscopic distal gastrectomy (TLDG) is now widely used for early gastric cancer patients, but the selection of a reconstruction method after TLDG is still controversial. Roux-en-Y gastrojejunostomy is...
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Early Experience of Direct Anterior Approach Total Hip Arthroplasty: Analysis of the First 53 Cases

Kim CY, Chung YY, Shim SW, Baek SN, Kim CH

Purpose: To determine if it is feasible and safe for a surgeon to transition from using the posterolateral approach to direct anterior approach (DAA) by evaluating the first 53 cases...
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Three-Dimensional Flexible Endoscopy Can Facilitate Efficient and Reliable Endoscopic Hand Suturing: An ex-vivo Study

Omori J, Goto O, Higuchi K, Umeda T, Akimoto N, Suzuki M, Kirita K, Koizumi E, Noda H, Akimoto T, Kaise M, Iwakiri K

Background/Aims: Three-dimensional (3D) flexible endoscopy, a new imaging modality that provides a stereoscopic view, can facilitate endoscopic hand suturing (EHS), a novel intraluminal suturing technique. This ex-vivo pilot study evaluated...
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Learning Curve of the Direct Anterior Approach for Hip Arthroplasty

Ham DH, Chung WC, Choi BY, Choi JE

Purpose: To evaluate the timing of the improvement in surgical skills of the direct anterior approach for hip arthroplasty through an analysis of the clinical features and learning curve in...
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Solo single incision laparoscopic cholecystectomy using the parallel method; Surgical technique reducing a steep learning curve

Lee B, Suh SW, Choi Y, Han HS, Yoon YS, Cho JY, Kim KH, Hyun IG, Han SJ

BACKGROUNDS/AIMS: To describe the techniques, short-term outcomes, and learning curve of solo single-incision laparoscopic cholecystectomy (Solo-SILC) using a laparoscopic scope holder. METHODS: A total of 591 patients who underwent Solo-SILC from...
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