The effect of bipolar radiofrequency technique in the treatment of patellofemoral malalignment
- VernacularTitle:髌股关节对合不良的关节镜下双极射频治疗
- Author:
Jun ZHANG
;
You WANG
;
Xiaokui HOU
- Publication Type:Journal Article
- Keywords:
Arthroscopy;
Patellofemoral pain syndrome;
Cartilage, articular
- From:
Chinese Journal of Orthopaedics
2000;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the early effect of arthroscopic bipolar radiofrequency technique in the treatment of patellofemoral malalignment. Methods 42 patients(47 knees) who were confirmed to be patellofemoral malalignment by radiographic methods, underwent arthroscopic bipolar radiofrequency chondroplasty and lateral retinacular release. The cartilage abnormality were classified according to the Outerbridge grade. 34 cases(37 knees) were followed up and mean period was 18.3 months. Patients were assessed before and after surgery using the Kujala patellofemoral score. Patellofemoral alignment were evaluated through MRI in 23 of 37 knees. The change of Cac (congruence angle of cartilage), Tac(tilt angle of cartilage), LPDc (lateral patellofemoral distance of cartilage) and LPFac(lateral patellofemoral angle of cartilage) were measured. Results The patellofemoral joint score was improved significantly in OuterbridgeⅠ,Ⅱand Ⅲ grade patients(6 knees ofⅠgrade: 60.83?3.54 preoperatively and 82.50?9.22 postoperatively, P0.05). The score of all these 37 knees was improved from 55.86?9.39 preoperatively to 69.41?14.89 postoperatively(P
