Evaluation of Low-field MR in the Diagnosis of Excessive Lateral Pressure Syndrome for Patellofemoral Joint_West China Medical Journal

Authors：

 CHENBing ,  CHENJun-rong , LUORong-zhi , HUANGYun-jie , LIXu-xue

Department of Radiology, Sichuan Orthopedics Hospital, Chengdu, Sichuan 610041, P. R. China;

Corresponding author：

CHENJun-rong, Email: kevinjrchen@163.com

Keywords：

Patellofemoral joint; Excessive lateral pressure syndrome; Magnetic resonance imaging

DOI：

10.7507/1002-0179.20140683

Video：

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Abstract Full text Figures/Tables Video References Cited by

Objective To investigate the value and feasibility of low-field MR in the diagnosis of excessive lateral pressure syndrome (ELPS) of the patellofemoral joint. Methods Thirty-seven patients confirmed to have ELPS by surgery or clinical examination between March 2010 and March 2013 were involved in this retrospective study. The injured knees of all patients were examined by SE sequence and Fat sequence, using Siemens 0.35 T MR scanner. The patella was assessed. Infrapatellar fat pad, patella tilt angle and patellofemoral joint space were measured. Results There were 15 cases of type Ⅱ, 21 of type Ⅲ, and 1 of type Ⅳ knees. Three cases of bipartite were detected. Patella tilt angle: type Ⅳ > type Ⅲ > type Ⅱ. Infrapatellar fat pad had edema in 37 cases. And there were 29 cases of varying degrees of lateral patellar cartilage softening. Conclusion Low-field MRI is an effective diagnostic method of excessive lateral pressure syndrome for patellofemoral joint. STIR sequence is the best sequence for diagnosing patellofemoral excessive lateral pressure syndrome.

Citation： CHENBing, CHENJun-rong, LUORong-zhi, HUANGYun-jie, LIXu-xue. Evaluation of Low-field MR in the Diagnosis of Excessive Lateral Pressure Syndrome for Patellofemoral Joint. West China Medical Journal, 2014, 29(12): 2259-2262. doi: 10.7507/1002-0179.20140683 Copy

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13.	张有磊. 髌骨倾斜与外侧高压综合征的研究进展[J]. 中国骨与关节杂志, 2014, 3(6):455-459.
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1. 舒从科, 杨本伍, 关钛元, 等. 关节镜下治疗髌股外侧高压综合征[J]. 骨科, 2013, 4(2):94-96.
2. 刘劲松, 张道平. 髌股外侧高压综合征的研究现状[J]. 中国骨伤, 2011, 24(5):436-441.
3. Chung CB, Skaf A, Roger B, et al. Patellar tendon-lateral femoral condyle friction syndrome:Mr imaging in 42 patients[J]. Skeletal Radiol, 2001, 30(12):694-697.
4. Wiberg G. Roentgenographic and anatomic studies on the femoropatellar joint, with special reference to chondromalacia patellae[J]. Acta Orthop Scand, 1941, 12:319-410.
5. Brittberg M, Winalski CS. Evaluation of cartilage injuries and repair[J]. J Bone Joint Surg Am, 2003, 85-A(Suppl 2):58-69.
6. Fithian DC, Paxton EW, Stone ML, et al. Epidemiology and natural history of acute patellar dislocation[J]. Am J Sports Med, 2004, 32(5):1114-1121.
7. Nomura E, Inoue M. Cartilage lesions of the patella in recurrent patellar dislocation[J]. Am J Sports Med, 2004, 32(2):498-502.
8. Fulkerson JP. 髌股关节疾病的诊断与治疗[M]. 4版. 裴福兴, 译. 北京:人民卫生出版社, 2006:24.
9. Amis AA, Senavongse W, Bull AM. Patellofemoral kinematics during knee flexion-extension:an in vitro study[J]. J Orthop Res, 2006, 24(12):2201-2211.
10. Davis DK, Fithian DC. Techniques of medial retinacular repair and reconstruction[J]. Clin Orthop Relat Res, 2002(42):38-52.
11. Panagiotopoulos E, Strzelczyk P, Herrmann M, et al. Cadaveric study on static medial patellar stabilizers:the dynamizing role of the vastus medialis obliquus on medial patellofemoral ligament[J]. Knee Surg Sports Traumatol Arthrosc, 2006, 14(1):7-12.
12. Merican AM, Amis AA. Anatomy of the lateral retinaculum of the knee[J]. J Bone Joint Surg Br, 2008, 90(4):527-534.
13. 张有磊. 髌骨倾斜与外侧高压综合征的研究进展[J]. 中国骨与关节杂志, 2014, 3(6):455-459.
14. 刘兆芹, 钱学江. 髌骨软化症的关节镜分级诊断与影像学对比分析[J]. 实用医药杂志, 2010, 27(7):610-611.
15. 王娟, 张家雄, 周守国. Hoffa病与髌骨运动轨迹异常相关性的MRI研究[J]. 放射学实践, 2014, 29(4):428-432.

West China Medical Journal

Evaluation of Low-field MR in the Diagnosis of Excessive Lateral Pressure Syndrome for Patellofemoral Joint

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