Arthroscopic Classification of Suprapatellar Plica and Medial Synovial Plica
- 1 Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
- 2 Department of Joint Center, Juzen Hospital, Hamamatsu, Japan
- 3 Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
- 4 Department of Orthopaedic Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan
Abstract
In the previous arthroscopic studies, the ratio of presence and type of plica was somewhat different. We arthroscopically investigated and classified suprapatellar plica and medial synovial plica in a Japanese population. Subjects and Methods: The anatomy of suprapatellar plica and medial synovial plica was studied arthroscopically in 130 knees. Original diagnosis of patients included in this study were 53 meniscal injuries, 51 ACL injuries, 17 osteoarthritis, 5 popliteal cysts, 3 osteochondritis dissecans, and 1 synovial osteochodromatosis. Results: The suprapatellar plica was present 73.8% and classified into 6 types which were arch type, medial type, lateral type, perforated type, pillar type and complete type. The medial synovial plica was present 62.3% and classified into 4 types which were narrow type, medium type, broad type and perforated type. No relationship between age and the pattern of the suprapatellar plica or medial synovial plica could be found. There was no trend to be correlation between the type of suprapatellar plica and medial synovial plica. Conclusion: We classified suprapatellar plica by only location and shape of plica and medial synovial plica by the size of plica.
- D. Patel, “Arthroscopy of the Plicae-Synovial Folds and Their Significance,” The American Journal of Sports Medicine, Vol. 6, No. 5, 1978, pp. 217-225. doi:10.1177/036354657800600502
- J. D. Dorchak, R. L. Barrack, J. S. Kneisl and A. H. Alexander, “Arthroscopic Treatment of Symptomatic Synovial Plica of the Knee. Long-Term Followup,” The American Journal of Sports Medicine, Vol. 19, No. 5, 1991, pp. 503-507. doi:10.1177/036354659101900515
- A. E. Strover, E. Rouholamin, N. Guirguis and H. Behdad. “An Arthroscopic Technique of Demonstrating the Pathomechanics of the Suprapatellar Plica,” Arthroscopy, Vol. 7, No. 3, 1991, pp. 308-310. doi:10.1016/0749-8063(91)90133-I
- T. Zidorn, “Classification of the Suprapatellar Septum Considering Ontogenetic Development,” Arthroscopy, Vol. 8, No. 4, 1992, pp. 459-464. doi:10.1016/0749-8063(92)90008-Y
- J. Y. Dupont, “Synovial Plicae of the Knee. Controversies and Review,” Clinics in Sports Medicine, Vol. 16, No. 1, 1997, pp. 87-122. doi:10.1016/S0278-5919(05)70009-0
- S. J. Kim, S. J. Shin and T. Y. Koo, “Arch Type Pathologic Suprapatellar Plica,” Arthroscopy, Vol. 17, No. 5, 2001, pp. 536-538. doi:10.1053/jars.2001.21845
- M. Pekmezci, O. A. Atay, U. Kerimoglu, U. Aydingoz, O. Tetik and M. N. Doral, “A Complete Supra-Patellar Plica with an Unusual Presentation,” Knee Surgery, Sports Traumatology, Arthroscopy, Vol. 14, No. 9, 2006, pp. 872-874. doi:10.1007/s00167-006-0037-6
- J. W. Ewing, “Plica: Pathologic or Not?” Journal of the American Academy of Orthopaedic Surgeons, Vol. 1, No. 2, 1993, pp. 117-121.
- J. Sakakibara, “Arthroscopic Study on Iino’s Band (Plica Synovialis Mediopatellaris),” Japanese Orthopaedic Association, Vol. 50, 1976, pp. 513-522.
- D. J. Dandy, “Anatomy of the Medial Suprapatellar Plica and Medial Synovial Shelf,” Arthroscopy, Vol. 6, No. 2, 1990, pp. 79-85. doi:10.1016/0749-8063(90)90002-U
- H. Gurbuz, O. U. Calpur, M. Ozcan, T. Kutoglu and R. Mesut, “The Synovial Plicae in the Knee Joint,” Saudi Medical Journal, Vol. 27, 2006, pp. 1839-1842.