Determinants of Thoracic Reciprocal Change and Its Relationship to Proximal Junctional Kyphosis Following Lower Thoracic Fusion for Lumbar Flatback Deformity 🌷doi.org/10.4055/cios26089 Clin Orthop Surg. 2026;18(5). Tae Soo Shin #Lordosis #Kyphosis #ThoracicReciprocalChange

Learning Curve for Biportal Endoscopic Transforaminal Lumbar Interbody Fusion in a Junior Endoscopic Spine Surgeon: A Phase-Specific Retrospective Analysis 🌷doi.org/10.4055/cios25345 Clin Orthop Surg. 2026;18(5). Tae Hoon Kang #SpinalFusion #Endoscopy #LumbarVertebrae

Association of Intraoperative Ketorolac Administration with Pediatric Anterior Cruciate Ligament Reconstruction Outcomes: A Retrospective Cohort Study 🌷doi.org/10.4055/cios25488 Clin Orthop Surg. 2026;18(5). Muaaz Wajahath #KneeJoint #AnteriorCruciateLigamentInjuries

Posterior Osteophyte Resection from the Medial Femoral Condyle Increases Medial Gap of Extension and Mid-Flexion in Total Knee Arthroplasty 🌷doi.org/10.4055/cios26098 Clin Orthop Surg. 2026;18(5). Ji Hyun Ahn #TotalKneeArthroplasty #PosteriorOsteophyte #MedialFemoralCondyle

The Sacro-Femoral-Pubic Angle May Estimate Pelvic Tilt in Patients with Severe Developmental Dysplasia of the Hip and Leg Length Discrepancy Undergoing Total Hip Arthroplasty 🌷doi.org/10.4055/cios26199 Clin Orthop Surg. 2026;18(5). Özgür Avci #SacroFemoralPubicAngle

Increased Accuracy of Acetabular Cup Positioning with an Automatic Impaction Device in Total Hip Arthroplasty 🌷doi.org/10.4055/cios26102 Clin Orthop Surg. 2026;18(5). Hyeongmin Song #TotalHipArthroplasty #AcetabularCup #AutomaticImpactionDevice

Comparison of Mortality and Revision Rates between Cemented and Cementless Fixation in Bipolar Hemiarthroplasty: A Nationwide Cohort Study 🌷doi.org/10.4055/cios25301 Clin Orthop Surg. 2026;18(5). Jung-Wee Park #Hemiarthroplasty #Registries #BoneCements #Mortality

Development and Validation of a Perioperative Risk Update Model for Postoperative Delirium in Patients Aged ≥ 80 Years Undergoing Hip Fracture Surgery: A Retrospective Cohort Study 🌷doi.org/10.4055/cios26062 Clin Orthop Surg. 2026;18(5). Feifei Zhao #Delirium #HipFractures

Kinematic Alignment in Total Knee Arthroplasty: Unresolved Challenges and Barriers to Overcome for Universal Application 🌷doi.org/10.4055/cios25336 Clin Orthop Surg. 2026;18(5). Gio Song #Knee #Arthroplasty #KinematicAlignment #JointLine #Obliquity

Performance of ChatGPT on Solving Orthopedic Board-Style Questions: A Comparative Analysis of ChatGPT 3.5 and ChatGPT 4 🌷doi.org/10.4055/cios23179 Clin Orthop Surg. 2024;16(4). Sung Eun Kim #ArtificialIntelligence #LargeLanguageModels #OrthopedicBoardExamination