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Inclusion criteria: at least 2 episodes of patellar dislocation. Exclusion criteria: previous knee surgeries, open physes, severe trochlear dysplasia\uff0c tibial tuberosity lateralization, or patella alta. Group A: From January 2013 to December 2013, preoperative 3\u2010dimensional computed tomography (3D\u2010CT) images were obtained. Anatomic features of Sch\u00f6ttle\u2019s point were measured on the 3D\u2010CT images. A Sch\u00f6ttle\u2019s point locating method with 2 distinct landmarks was established. Group B: From January 2014 to January 2016, consecutive MPFL reconstructions were performed. The placement of Sch\u00f6ttle\u2019s point was following the established method without fluoroscopy. The accuracy of femoral tunnel positions was assessed on the 3D\u2010CT images postoperatively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      CT images of 53 knees were obtained in group A. Forty\u2010seven MPFL reconstructions were performed in group B. No significant difference was found between the 2 groups regarding to demographic characteristics. The intraclass correlation coefficients were excellent for all measures (\n                      <jats:italic>r<\/jats:italic>\n                      \u00a0= 0.97). In group A, Sch\u00f6ttle\u2019s point was 8.1 \u00b1 0.2 mm (95% confidence interval [CI], 7.7\u20108.5) distal to the apex of the adductor tubercle and 8.0 \u00b1 0.3 mm (95% CI, 7.4\u20108.6) anterior to the posterior edge. Apex of the adductor tubercle was defined as the most convex point, and posterior edge was defined as the edge of the posteromedial cortex in the transition area between the medial condyle and femoral shaft. In group B, 44 of 47 femoral tunnels (93.6%) were considered localized in the proper zone.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Sch\u00f6ttle\u2019s point was approximately 8 mm distal to the apex of the adductor tubercle and 8 mm from the posterior edge. Sch\u00f6ttle\u2019s point locating method without fluoroscopy had high accuracy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level IV, case series.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2021.01.041","type":"journal-article","created":{"date-parts":[[2021,2,2]],"date-time":"2021-02-02T12:41:56Z","timestamp":1612269716000},"page":"1902-1908","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":27,"title":["Using Anatomic Landmarks to Locate Sch\u00f6ttle\u2019s Point Was Accurate Without Fluoroscopy During Medial Patellofemoral Ligament Reconstruction"],"prefix":"10.1002","volume":"37","author":[{"given":"Hai\u2010Jun","family":"Wang","sequence":"first","affiliation":[{"name":"Sports Medicine Department Beijing Key Laboratory of Sports Injuries Peking University Third Hospital Beijing China. Institute of Sports Medicine of Peking University Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi\u2010Fan","family":"Song","sequence":"additional","affiliation":[{"name":"Sports Medicine Department Beijing Key Laboratory of Sports Injuries Peking University Third Hospital Beijing China. Institute of Sports Medicine of Peking University Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Yan","sequence":"additional","affiliation":[{"name":"Sports Medicine Department Beijing Key Laboratory of Sports Injuries Peking University Third Hospital Beijing China. Institute of Sports Medicine of Peking University Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fei","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Joint Surgery The Third Hospital of Heibei Medical University Shijiazhuang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jian","family":"Wang","sequence":"additional","affiliation":[{"name":"Sports Medicine Department Beijing Key Laboratory of Sports Injuries Peking University Third Hospital Beijing China. Institute of Sports Medicine of Peking University Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong\u2010Jian","family":"Wang","sequence":"additional","affiliation":[{"name":"Sports Medicine Department Beijing Key Laboratory of Sports Injuries Peking University Third Hospital Beijing China. 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