The Application of Low-field MRI for Less Common Types of Knee Injury_West China Medical Journal

Authors：

 ZHANGDe-zhou , LUOFei , LIDong-ming

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

Corresponding author：

Keywords：

Knee injuries; Knee joint; Magnetic resonance imaging

DOI：

10.7507/1002-0179.20150013

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Objective To evaluate the manifestations and diagnostic value of low-field MRI for all kinds of unusual knee injury after trauma. Methods We retrospectively analyzed the MRI data of 385 patients with knee joint injury in our hospital confirmed by arthroscopy and operation between January 2010 and December 2012. The injury with an incidence of equal to or lower than 5% was regarded as unusual injury in this study. Incidence rate of all kinds of unusual injury was counted and MRI imaging findings were analyzed. Results Among the 385 patients, meniscus injury was found in 155 patients, cruciate ligament injury in 117, medial collateral ligament injury in 127, bone contusion in 84, and fracture in 44. Multiple injuries also existed. At the same time, root injury of meniscus was found in 15 (4.0%) of the 385 cases; meniscocapsular separation in 3 cases (0.8%); posterolateral complex injury in 17 cases (4.4%); Segond fracture in 6 (1.6%) cases; femoral plate ligament injury in 1 (0.5%)case; medial patellar retinaculum injury in 19 (4.9%) cases; cartilage fractures in 16 cases (4.2%) in which patellar cartilage fractures occurred in 5 cases (1.3%), femoral and lateral condyle cartilage fractures in 11 cases (2.9%). Conclusion The low-field MRI has a high accuracy in the diagnosis of knee joint unusual injury, and is an ideal and noninvasive method for knee joint injuries.

Citation： ZHANGDe-zhou, LUOFei, LIDong-ming. The Application of Low-field MRI for Less Common Types of Knee Injury. West China Medical Journal, 2015, 30(1): 49-52. doi: 10.7507/1002-0179.20150013 Copy

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11.	Galla M, Lobenhoffer P. Patella fractures[J]. Chirurg, 2005, 76(10):987-999.
12.	Milgram JE. Osteochondral lesion of the knee joint[J]. J Bone Joint Surg, 1966(48):392.
13.	Jee WH, Mccauley TR, Kim JM. Magnetic resonance diagnosis of meniscal tears in patients with acute anterior cruciate ligament tears[J]. J Comput Assist Tomogr, 2004, 28(3):402-406.
14.	江浩.骨与关节MRI[M].上海:上海科学技术出版社, 1999:265-267.
15.	Mirowits SA, Apicella P, Reinus WR, et al. Mr imaging of bone morrow lesions:relative conspicuousness on T1-Weighted, fat suppressed T2-weighted, and STIR imaging[J]. AJR Am J Roentgenol, 1994, 162(2):215-221.

1. Brody JM, Lin HM, Ulstyn H, et al. Lateral meniscus root tear and meniscus extrusion with anterior cruciate ligament tear[J]. Radiology, 2006, 239(3):805-810.
2. Park LS, Jacobson JA, Jam AA, et al. Posteriorhorn lateral meniscal tears simulating meniscofemoral ligament attachment in the setting of ACL tear:MRI findings[J]. Skeletal Radiol, 2007, 36(5):399-430.
3. Boxheimer L, Lutz AM, Treiber K, et al. Mr imaging of the knee:position related changes of the menisci in asymptomatic volunteers[J]. Invest Radiol, 2004, 39(5):254-263.
4. 唐小锋, 周承涛, 牟仁琪, 等.半月板关节囊分离并反转的MRI诊断[J].中华放射学杂志, 2005, 3(2):80-83.
5. Barker RP, Lee JC, Healy JC. Normal sonographic anatomy of the posterolateral corner of the knee[J]. AJR Am J Roentgeno, 2009, 192(1):73-79.
6. Goldman AB, Pavlov H, Rubenstein D. The segond fracture of the proximal tibia:a small avulsion that reflects major ligamentous damage[J]. AJR Am J Roentgenol, 1988, 151(6):1163-1167.
7. 于长隆, 敖英芳.中华骨科学-运动创伤卷[M].北京:人民卫生出版社, 2010:351.
8. Conlan T, Garth WP, Lemons JE, et al. Evaluation of the medial soft-tissue restraints of the extensor mechanism of the knee[J]. J Bone Joint Surg, 1993, 75(5):682-693.
9. Spritzer C, Courneya D, Burk D, et al.Medial retinae ular complex injury in acute patellar discolation:MR findings and surgical implications[J]. AJR Am J Roentgowl, 1997, 168(1):117-122.
10. 胡必富, 孔祥泉, 蒋从清.膝关节隐匿性骨折的MRI诊断价值探讨[J].中华创伤骨科杂志, 2004, 6(9):1008-1011.
11. Galla M, Lobenhoffer P. Patella fractures[J]. Chirurg, 2005, 76(10):987-999.
12. Milgram JE. Osteochondral lesion of the knee joint[J]. J Bone Joint Surg, 1966(48):392.
13. Jee WH, Mccauley TR, Kim JM. Magnetic resonance diagnosis of meniscal tears in patients with acute anterior cruciate ligament tears[J]. J Comput Assist Tomogr, 2004, 28(3):402-406.
14. 江浩.骨与关节MRI[M].上海:上海科学技术出版社, 1999:265-267.
15. Mirowits SA, Apicella P, Reinus WR, et al. Mr imaging of bone morrow lesions:relative conspicuousness on T1-Weighted, fat suppressed T2-weighted, and STIR imaging[J]. AJR Am J Roentgenol, 1994, 162(2):215-221.

West China Medical Journal

The Application of Low-field MRI for Less Common Types of Knee Injury

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