Radiological evaluation of patellofemoral instability and possible causes of assessment errors  

作　　者：Tugrul Ormeci Ismail Turkten Bayram Ufuk Sakul 

机构地区：[1]Department of Radiology,School of Medicine,İstanbul Medipol University,Istanbul 34200,Turkey [2]Department of Anatomy,School of Medicine,İstanbul Medipol University,Istanbul 34820,Beykoz,Turkey

出　　处：《World Journal of Methodology》2022年第2期64-82,共19页世界方法学杂志

基　　金：Tugrul Ormeci,ORCID number:0000-0001-8532-4917;Ismail Turkten,ORCID number:0000-0003-0787-7000;Bayram Ufuk Sakul,ORCID number:0000-0002-5539-2342.

摘　　要：Patellofemoral instability(PI)is the disruption of the patella’s relationship with the trochlear groove as a result of abnormal movement of the patella.To identify the presence of PI,conventional radiographs(anteroposterior,lateral,and axial or skyline views),magnetic resonance imaging,and computed tomography are used.In this study,we examined four main instability factors:Trochlear dysplasia,patella alta,tibial tuberosity–trochlear groove distance,and patellar tilt.We also briefly review some of the other assessment methods used in the quantitative and qualitative assessment of the patellofemoral joint,such as patellar size and shape,lateral trochlear inclination,trochlear depth,trochlear angle,and sulcus angle,in cases of PI.In addition,we reviewed the evaluation of coronal alignment,femoral anteversion,and tibial torsion.Possible causes of error that can be made when evaluating these factors are examined.PI is a multi-factorial problem.Many problems affecting bone structure and muscles morphologically and functionally can cause this condition.It is necessary to understand normal anatomy and biomechanics to make more accurate radiological measurements and to identify causes.Knowing the possible causes of measurement errors that may occur during radiological measurements and avoiding these pitfalls can provide a more reliable road map for treatment.This determines whether the disease will be treated medically and with rehabilitation or surgery without causing further complications.

关 键 词：Patellofemoral instability Radiological evaluation errors Trochlear dysplasia Patella alta Tibial tuberosity-trochlear groove distance Patellar tilt 

分 类 号：R49[医药卫生—康复医学]