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KMID : 0359620150270040255
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Journal of Korean Knee Society
2015 Volume.27 No. 4 p.255 ~ p.262
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Extra-Articular Ganglion Cysts around the Knee Joint
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Park Sang-Eun
Karnav Panchal
Jeong Jae-Jung
Kim Young-Yul
Ji Jong-Hun
Park Sung-Ryeoll
Park Min-Kyu
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Abstract
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Purpose: The purpose of this study was to report clinical results of open excision of extra-articular ganglion cysts around the knee joint combined with arthroscopic management of intra-articular pathologies if present.
Materials and Methods: Of the total 107 cases of cystic lesions around the knee, 23 cases of extra-articular ganglion cysts were reviewed between January 2006 and July 2011. There were 13 males and 10 females with a mean age of 48 years (range, 30 to 73 years). The mean follow-up duration was 40 months (range, 30 to 60 months). Preoperative magnetic resonance imaging (MRI) scan was done in all cases. Open surgical excision of the cyst was performed after arthroscopic management of intra-articular pathologies in all but 1 case. At the last follow-up, Lysholm and International Knee Documentation Committee (IKDC) scores were evaluated and MRI was conducted to detect recurrence.
Results: The mean Lysholm and IKDC scores showed significant improvement (p=0.005 and 0.013, respectively).The location of the cysts was anterior in 9, lateral in 7, medial in 6, and posterosuperior in 1. Intra-articular pathologies were found in 16/23 cases (69.6%). In 10/23 cases (43%), the cyst was connected to the knee joint. Three months postoperative MRI did not show any recurrence of ganglion cysts except for 1 case.
Conclusions: In the treatment of extra-articular ganglion cysts, MRI can be useful for detecting intra-articular lesions and connecting orifices, and arthroscopic management of intra-articular pathologies with open excision of the cyst should be considered as a viable treatment option.
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KEYWORD
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Knee, Popliteal ganglion cyst, Intra-articular, Magnetic resonance imaging, Combined excision
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