Value of CT in the postoperative evaluation of patellar dislocation triple surgery
10.3969/j.issn.1002-1671.2015.07.022
- VernacularTitle:CT 在髌骨脱位三联术后评估中的价值
- Author:
Le QIN
;
Mei LI
;
Hui WANG
;
Weiwu YAO
;
Ji SHEN
- Publication Type:Journal Article
- Keywords:
patellar dislocation;
patellar dislocation triple surgery;
computed tomography
- From:
Journal of Practical Radiology
2015;(7):1148-1151
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the role of CT in the evaluation after patellar dislocation triple surgeries.Methods Retrospectively analysed the CT measurements of 60 recurrent patellar dislocation patients (61 knees),who had undergone patellar dislocation triple surgeries,within one month before and after procedures.The measurements included patellar tilt angle,lateral patellar displacement,trochlear con-gruence angle,Tibial Tuberosity-Trochlear Groove distance,Insall-Salvati Ratio and Caton-Deschamps Index.Moreover,the troch-lear dysplasia classifications of all patients were evaluated.In addtion,an analysis has also been completed for 40 (41 knees)of 60 patients who had second postoperative CT examinations as follow-up assessment 3 to 6 months after surgeries.Results All one-month postoperative measurements decreased obviously with statistical significance(P <0.05 ).Furthermore,one case of subluxa-tion,1 1 cases of abnormal Tibial Tuberosity-Trochlear Groove distance,13 cases of abnormal Insall-Salvati Ratio and 14 cases of Ca-ton-Deschamps Index abnormities were also observed.Besides that,it was also found that all patients had trochlear dysplasia and 5 cases were diagnosed with patellar subluxation or dislocation at the second postoperative follow-up assessment.Conclusion The patients with redislocation or risks for patellar instability can be detectecd by CT which provides objective evidence for postoperative evaluation and further treatments.
