{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:54:20Z","timestamp":1760147660644,"version":"build-2065373602"},"reference-count":35,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2023,2,16]],"date-time":"2023-02-16T00:00:00Z","timestamp":1676505600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Medicina"],"abstract":"<jats:p>Background and Objectives: Various predisposing factors for lateral patellar dislocation (LPD) have been identified, but the relation between femoral rotational deformity and the tibial tubercle\u2013Roman arch (TT-RA) distance remains elusive. Materials and Methods: We conducted this study including 72 consecutive patients with unilateral LPD. Femoral anteversion was measured by the surgical transepicondylar axis (S-tAV), and the posterior condylar reference line (P-tAV), TT-RA distance, trochlear dysplasia, knee joint rotation, patellar height, and hip\u2013knee\u2013ankle angle were measured by CT images or by radiographs. The correlations among these parameters were analyzed, and the parameters were compared between patients with and without a pathological TT-RA distance. Binary regression analysis was performed, and receiver operating characteristic curves were obtained. Results: The TT-RA distance was correlated with S-tAV (r = 0.360, p = 0.002), but the correlation between P-tAV and the TT-RA distance was not significant. S-tAV had an AUC of 0.711 for predicting a pathological TT-RA, with a value of &gt;18.6\u00b0 indicating 54.8% sensitivity and 82.9% specificity. S-tAV revealed an OR of 1.13 (95% CI [1.04, 1.22], p = 0.003) with regard to the pathological TT-RA distance by an adjusted regression model. Conclusions: S-tAV was significantly correlated with the TT-RA distance, with a correlation coefficient of 0.360, and was identified as an independent risk factor for a pathological TT-RA distance. However, the TT-RA distance was found to be independent of P-tAV.<\/jats:p>","DOI":"10.3390\/medicina59020382","type":"journal-article","created":{"date-parts":[[2023,2,16]],"date-time":"2023-02-16T05:27:38Z","timestamp":1676525258000},"page":"382","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Femoral Anteversion Measured by the Surgical Transepicondylar Axis Is Correlated with the Tibial Tubercle\u2013Roman Arch Distance in Patients with Lateral Patellar Dislocation"],"prefix":"10.3390","volume":"59","author":[{"given":"Jiaxing","family":"Chen","sequence":"first","affiliation":[{"name":"Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China"},{"name":"Orthopedic Laboratory, Chongqing Medical University, Chongqing 400016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fuling","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China"},{"name":"Department of Orthopedics, People\u2019s Hospital of Hechuan, Chongqing 401520, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lin","family":"Fan","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China"},{"name":"Orthopedic Laboratory, Chongqing Medical University, Chongqing 400016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sizhu","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi","family":"Feng","sequence":"additional","affiliation":[{"name":"Medical Education Department, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qiaochu","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China"},{"name":"Orthopedic Laboratory, Chongqing Medical University, Chongqing 400016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jian","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China"},{"name":"Orthopedic Laboratory, Chongqing Medical University, Chongqing 400016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhengxue","family":"Quan","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China"},{"name":"Orthopedic Laboratory, Chongqing Medical University, Chongqing 400016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1717-101X","authenticated-orcid":false,"given":"Aiguo","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China"},{"name":"Orthopedic Laboratory, Chongqing Medical University, Chongqing 400016, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1670","DOI":"10.1016\/j.arthro.2020.12.210","article-title":"Tibial Tubercle Osteotomy May not Provide Additional Benefit in Treating Patellar Dislocation with Increased Tibial Tuberosity-Trochlear Groove Distance: A Systematic Review","volume":"37","author":"Song","year":"2021","journal-title":"Arthroscopy"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1642","DOI":"10.1177\/0363546520958423","article-title":"Current Concepts Regarding Patellofemoral Trochlear Dysplasia","volume":"49","author":"Levy","year":"2021","journal-title":"Am. J. Sports. Med."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"868","DOI":"10.1302\/0301-620X.102B7.BJJ-2019-1331.R1","article-title":"Distal femoral morphological dysplasia is correlated with increased femoral torsion in patients with trochlear dysplasia and patellar instability","volume":"102-b","author":"Yang","year":"2020","journal-title":"Bone Jt. J."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1114","DOI":"10.1016\/j.arthro.2019.10.033","article-title":"Femoral Anteversion is Related to Tibial Tubercle-Trochlear Groove Distance in Patients with Patellar Dislocation","volume":"36","author":"Xu","year":"2020","journal-title":"Arthroscopy"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/j.csm.2021.07.011","article-title":"Rotational Deformity-When and How to Address Femoral Anteversion and Tibial Torsion","volume":"41","author":"Noonan","year":"2022","journal-title":"Clin. Sports Med."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"566","DOI":"10.1016\/j.arthro.2018.10.109","article-title":"Anteromedial Tibial Tubercle Osteotomy Improves Results of Medial Patellofemoral Ligament Reconstruction for Recurrent Patellar Instability in Patients With Tibial Tuberosity-Trochlear Groove Distance of 17 to 20 mm","volume":"35","author":"Franciozi","year":"2019","journal-title":"Arthroscopy"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2077","DOI":"10.1007\/s00402-020-03598-x","article-title":"Femoral derotation osteotomy for recurrent patellar dislocation","volume":"140","author":"Tian","year":"2020","journal-title":"Arch. Orthop. Trauma. Surg."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1186\/s40798-022-00488-x","article-title":"Anterior Knee Pain: State of the Art","volume":"8","author":"Meena","year":"2022","journal-title":"Sports Med. Open."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Chen, J., Yin, B., Yao, J., Zhou, Y., Zhang, H., Zhang, J., and Zhou, A. (2022). Femoral anteversion measured by the surgical transepicondylar axis is a reliable parameter for evaluating femoral rotational deformities in patients with patellar dislocation. Knee Surg. Sports Traumatol. Arthrosc., 1\u20139.","DOI":"10.1007\/s00167-022-07016-0"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"2325967120914872","DOI":"10.1177\/2325967120914872","article-title":"Tibial Tubercle-Roman Arch Distance: A New Measurement of Patellar Dislocation and Indication of Tibial Tubercle Osteotomy","volume":"8","author":"Xu","year":"2020","journal-title":"Orthop. J. Sports Med."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"23259671221113841","DOI":"10.1177\/23259671221113841","article-title":"Anatomical Components Associated With Increased Tibial Tuberosity-Trochlear Groove Distance","volume":"10","author":"Xu","year":"2022","journal-title":"Orthop. J. Sports Med."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"420","DOI":"10.4055\/cios.2018.10.4.420","article-title":"Factors Affecting Tibial Tuberosity-Trochlear Groove Distance in Recurrent Patellar Dislocation","volume":"10","author":"Prakash","year":"2018","journal-title":"Clin. Orthop. Surg."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"915","DOI":"10.1007\/s00167-014-3426-2","article-title":"Correlation of the tibial tuberosity-trochlear groove distance with the Q-angle","volume":"24","author":"Dickschas","year":"2016","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"1227","DOI":"10.1007\/s00264-017-3598-8","article-title":"Segmental torsion assessment is a reliable method for in-depth analysis of femoral alignment in Computer Tomography","volume":"42","author":"Ferlic","year":"2018","journal-title":"Int. Orthop."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"2709","DOI":"10.1007\/s00167-021-06539-2","article-title":"Ipsilateral patellofemoral morphological abnormalities are more severe than those of contralateral joints in patients with unilateral patellar dislocation","volume":"29","author":"Chen","year":"2021","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"746","DOI":"10.1007\/s00167-017-4520-z","article-title":"Quality assessment of radiological measurements of trochlear dysplasia; a literature review","volume":"26","author":"Paiva","year":"2018","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"3735","DOI":"10.1007\/s00167-020-06382-x","article-title":"Increased tibiofemoral rotation on MRI with increasing clinical severity of patellar instability","volume":"29","author":"Lin","year":"2021","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"869","DOI":"10.1007\/s00167-019-05531-1","article-title":"Patellar height measurements: Insall-Salvati ratio is most reliable method","volume":"28","author":"Verhulst","year":"2020","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"8404","DOI":"10.1007\/s00330-022-08924-y","article-title":"Tibial tubercle-Roman arch (TT-RA) distance is superior to tibial tubercle-trochlear groove (TT-TG) distance when evaluating coronal malalignment in patients with knee osteoarthritis","volume":"32","author":"Chen","year":"2022","journal-title":"Eur. Radiol."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"2261","DOI":"10.1007\/s00167-019-05818-3","article-title":"Increased femoral anteversion is associated with inferior clinical outcomes after MPFL reconstruction and combined tibial tubercle osteotomy for the treatment of recurrent patellar instability","volume":"28","author":"Zhang","year":"2020","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"51","DOI":"10.1177\/0363546512464691","article-title":"Magnetic resonance imaging analysis of rotational alignment in patients with patellar dislocations","volume":"41","author":"Diederichs","year":"2013","journal-title":"Am. J. Sports Med."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"758","DOI":"10.1007\/s00167-018-5065-5","article-title":"Isolated medial patellofemoral ligament reconstruction for patella instability is insufficient for higher degrees of internal femoral torsion","volume":"27","author":"Kaiser","year":"2019","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"313","DOI":"10.1016\/j.ocl.2008.03.005","article-title":"The management of recurrent patellar dislocation","volume":"39","author":"Andrish","year":"2008","journal-title":"Orthop. Clin. N. Am."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1016\/j.knee.2016.12.008","article-title":"CT-based morphological analysis of the posterior femoral condyle in patients with trochlear dysplasia","volume":"24","author":"Liu","year":"2017","journal-title":"Knee"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"234","DOI":"10.1016\/j.arthro.2020.09.004","article-title":"Validating the Role of Tibial Tubercle-Posterior Cruciate Ligament Distance and Tibial Tubercle-Trochlear Groove Distance Measured by Magnetic Resonance Imaging in Patients with Patellar Dislocation: A Diagnostic Study","volume":"37","author":"Xu","year":"2021","journal-title":"Arthroscopy"},{"key":"ref_26","first-page":"77","article-title":"Assessment of Femoral Version Should be Assessed Independently of Conventional Measures in Patellofemoral Instability","volume":"41","author":"Havey","year":"2021","journal-title":"Iowa. Orthop. J."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"1403","DOI":"10.1007\/s00167-018-5141-x","article-title":"Highly variable tibial tubercle-trochlear groove distance (TT-TG) in osteoarthritic knees should be considered when performing TKA","volume":"27","author":"Hochreiter","year":"2019","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1809","DOI":"10.1007\/s00167-021-06739-w","article-title":"Derotational distal femoral osteotomy yields satisfactory clinical outcomes in pathological femoral rotation with failed medial patellofemoral ligament reconstruction","volume":"30","author":"Cao","year":"2022","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"926","DOI":"10.1007\/s00167-019-05561-9","article-title":"Derotational femoral osteotomy changes patella tilt, patella engagement and tibial tuberosity trochlear groove distance","volume":"28","author":"Kaiser","year":"2020","journal-title":"Knee Surg. Sports Traumatol. Arthrosc."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"2295","DOI":"10.1016\/j.arthro.2016.03.023","article-title":"High Femoral Anteversion Is Related to Femoral Trochlea Dysplasia","volume":"32","author":"Liebensteiner","year":"2016","journal-title":"Arthroscopy"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"1503","DOI":"10.1007\/s00402-015-2310-y","article-title":"Influence of posterior lateral femoral condyle geometry on patellar dislocation","volume":"135","author":"Gillespie","year":"2015","journal-title":"Arch. Orthop. Trauma Surg."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1186\/s10195-022-00653-8","article-title":"High femoral anteversion in osteoarthritic knees, particularly for severe valgus deformity","volume":"23","author":"Li","year":"2022","journal-title":"J. Orthop. Traumatol."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"909","DOI":"10.1177\/0363546516676266","article-title":"Geometry of the Valgus Knee: Contradicting the Dogma of a Femoral-Based Deformity","volume":"45","author":"Eberbach","year":"2017","journal-title":"Am. J. Sports Med."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"2355","DOI":"10.1007\/s00264-015-2859-7","article-title":"Combined supracondylar femoral derotation osteotomy and patellofemoral ligament reconstruction for recurrent patellar dislocation and severe femoral anteversion syndrome: Surgical technique and clinical outcome","volume":"39","author":"Nelitz","year":"2015","journal-title":"Int. Orthop."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"2342","DOI":"10.1007\/s00167-021-06813-3","article-title":"Patellar dislocation is associated with increased tibial but not femoral rotational asymmetry","volume":"30","author":"Geraghty","year":"2022","journal-title":"Knee Surg Sports Traumatol. Arthrosc."}],"container-title":["Medicina"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1648-9144\/59\/2\/382\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T18:37:57Z","timestamp":1760121477000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1648-9144\/59\/2\/382"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,2,16]]},"references-count":35,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2023,2]]}},"alternative-id":["medicina59020382"],"URL":"https:\/\/doi.org\/10.3390\/medicina59020382","relation":{},"ISSN":["1648-9144"],"issn-type":[{"type":"electronic","value":"1648-9144"}],"subject":[],"published":{"date-parts":[[2023,2,16]]}}}