L. March, M. Cross, N. Arden, and G. Hawker, “Osteoarthritis: A serious disease,” OARSI, 2016.
 D. Ruiz et al., “The direct and indirect costs to society of treatment for end-stage knee osteoarthritis,” J. Bone Jt. Surg. - Ser. A, 2013.
 N. Hussain, H. Johal, and M. Bhandari, “An evidence-based evaluation on the use of platelet rich plasma in orthopedics – a review of the literature,” SICOT-J, 2017.
 R. Bastos et al., “Intra-articular injections of expanded mesenchymal stem cells with and without addition of platelet-rich plasma are safe and effective for knee osteoarthritis,” Knee Surgery, Sport. Traumatol. Arthrosc., 2018.
 A. A. Balaji Saibaba, “Emergence of Orthobiologics as a Novel Therapeutic Modality for Osteoarthritis of Knee,” Rheumatol. Curr. Res., 2015.
 S.-R. Lyu and C.-C. Hsu, “Medial plicae and degeneration of the medial femoral condyle,” Arthrosc. - J. Arthrosc. Relat. Surg., vol. 22, no. 1, 2006.
 S.-R. Lyu, J.-E. Tzeng, C.-Y. Kuo, A.-R. Jian, and D.-S. Liu, “Mechanical strength of mediopatellar plica - The influence of its fiber content,” Clin. Biomech., vol. 21, no. 8, 2006.
 S.-R. Lyu, “Relationship of medial plica and medial femoral condyle during flexion,” Clin. Biomech., vol. 22, no. 9, 2007.
 S.-R. Lyu, J.-K. Chiang, and C.-E. Tseng, “Medial plica in patients with knee osteoarthritis: A histomorphological study,” Knee Surgery, Sport. Traumatol. Arthrosc., vol. 18, no. 6, 2010.
 H.-S. Wang, P.-Y. Kuo, C.-C. Yang, and S.-R. Lyu, “Matrix metalloprotease-3 expression in the medial plica and pannus-like tissue in knees from patients with medial compartment osteoarthritis,” Histopathology, vol. 58, no. 4, 2011.
 C.-C. Yang, C.-Y. Lin, H.-S. Wang, and S.-R. Lyu, “Matrix metalloproteases and tissue inhibitors of metalloproteinases in medial plica and pannus-like tissue contribute to knee osteoarthritis progression,” PLoS One, vol. 8, no. 11, 2013.
 D. S. Liu, Z. W. Zhuang, and S. R. Lyu, “Relationship between medial plica and medial femoral condyle - A three-dimensional dynamic finite element model,” Clin. Biomech., vol. 28, no. 9–10, 2013.
 S.-R. Lyu et al., “Role of medial abrasion phenomenon in the pathogenesis of knee osteoarthritis,” Med. Hypotheses, vol. 85, no. 2, 2015.
 S.-R. Lyu, “Arthroscopic medial release for medial compartment osteoarthritis of the knee: the result of a single surgeon series with a minimum follow-up of four years.,” J. Bone Joint Surg. Br., vol. 90, no. 9, pp. 1186–1192, Sep. 2008.
 S.-R. Lyu, C.-C. Hsu, and C.-W. Lin, “Arthroscopic cartilage regeneration facilitating procedure for osteoarthritic knee.,” BMC Musculoskelet. Disord., vol. 13, no. 1, p. 226, 2012.
 S.-R. Lyu, “Knee health promotion option for knee osteoarthritis: A preliminary report of a concept of multidisciplinary management,” Heal. Aging Res., 2015.
 C. Slattery and C. Y. Kweon, “Classifications in Brief: Outerbridge Classification of Chondral Lesions,” Clin. Orthop. Relat. Res., 2018.
 G. B. Joseph et al., “Texture analysis of cartilage T2 maps: Individuals with risk factors for OA have higher and more heterogeneous knee cartilage MR T2 compared to normal controls - data from the osteoarthritis initiative,” Arthritis Res. Ther., 2011.
 C. G. Peterfy et al., “Whole-organ magnetic resonance imaging score (WORMS) of the knee in osteoarthritis,” Osteoarthr. Cartil., 2004.
 S. Ogata and H. K. Uhthoff, “The development of synovial plicae in human knee joints: An embryologic study,” Arthrosc. J. Arthrosc. Relat. Surg., 1990.
 J. Y. Dupont, “Synovial plicae of the knee: Controversies and review,” Clin. Sports Med., 1997.
 H. Zmerly, I. Akkawi, R. Citarella, and M. E. Ghoch, “Clinical Management of Medial Patellar Plica Syndrome: Mini Review from Diagnosis to Treatment,” Curr. Rheumatol. Rev., 2018.
 A. Nakayama, T. Sugita, T. Aizawa, A. Takahashi, and T. Honma, “Incidence of medial plica in 3,889 knee joints in the Japanese population,” Arthrosc. - J. Arthrosc. Relat. Surg., 2011.
 M. R. Gurbuz H, Calpur OU, Ozcan M, Kutoglu T, “The synovial plicae in the knee joint.,” Saudi Med J., vol. Dec;27, no. 12, pp. 1839–42, 2006.
 S. S. Bellary et al., “Medial plica syndrome: A review of the literature,” Clinical Anatomy. 2012.
 O. S. Schindler, “‘The Sneaky Plica’ revisited: Morphology, pathophysiology and treatment of synovial plicae of the knee,” Knee Surgery, Sport. Traumatol. Arthrosc., 2014.
 D. Hayashi et al., “Prevalence of MRI-detected mediopatellar plica in subjects with knee pain and the association with MRI-detected patellofemoral cartilage damage and bone marrow lesions: Data from the Joints on Glucosamine study,” BMC Musculoskelet. Disord., 2013.
 S.-R. Lyu, C.-C. Lee, and C.-C. Hsu, “Medial abrasion syndrome: A neglected cause of knee pain in middle and old age,” Med. (United States), vol. 94, no. 16, 2015.
 E. J. Bartley and R. B. Fillingim, “Sex differences in pain: A brief review of clinical and experimental findings,” Br. J. Anaesth., 2013.
 J. C. Bernhard and G. Vunjak-Novakovic, “Should we use cells, biomaterials, or tissue engineering for cartilage regeneration?,” Stem Cell Research and Therapy. 2016.
 T. Koshino, S. Wada, Y. Ara, and T. Saito, “Regeneration of degenerated articular cartilage after high tibial valgus osteotomy for medial compartmental osteoarthritis of the knee,” Knee, 2003.
 T. Kanamiya, M. Naito, M. Hara, and I. Yoshimura, “The influences of biomechanical factors on cartilage regeneration after high tibial osteotomy for knees with medial compartment osteoarthritis: Clinical and arthroscopic observations,” Arthroscopy, 2002.
 T. Davisson, S. Kunig, A. Chen, R. Sah, and A. Ratcliffe, “Static and dynamic compression modulate matrix metabolism in tissue engineered cartilage,” J. Orthop. Res., 2002.
 G. Sharma, R. K. Saxena, and P. Mishra, “Differential effects of cyclic and static pressure on biochemical and morphological properties of chondrocytes from articular cartilage,” Clin. Biomech., 2007.
 C. Waller, D. Hayes, J. E. Block, and N. J. London, “Unload it: The key to the treatment of knee osteoarthritis,” Knee Surgery, Sport. Traumatol. Arthrosc., 2011.
 T. C. Wu, C. H. Yen, S. R. Lyu, and S. S. Hung, “MODIFICATION IN FOOT PRESSURE AND GAIT PATTERN AFTER ARTHROSCOPIC CARTILAGE REGENERATION FACILITATING PROCEDURES (ACRFP) IN PATIENTS WITH OSTEOARTHRITIS OF KNEE,” in Journal of Mechanics in Medicine and Biology, 2019.
 W. Laupattarakasem, M. Laopaiboon, P. Laupattarakasem, and C. Sumananont, “Arthroscopic debridement for knee osteoarthritis,” Cochrane Database of Systematic Reviews. 2008.
 M. Pitta, W. Davis, and E. H. Argintar, “Arthroscopic management of osteoarthritis,” Journal of the American Academy of Orthopaedic Surgeons. 2016.
 K. Mithoefer, T. Mcadams, R. J. Williams, P. C. Kreuz, and B. R. Mandelbaum, “Clinical efficacy of the microfracture technique for articular cartilage repair in the knee: An evidence-based systematic analysis,” American Journal of Sports Medicine. 2009.
 J. B. Thorlund, C. B. Juhl, E. M. Roos, and L. S. Lohmander, “Arthroscopic surgery for degenerative knee: Systematic review and meta-analysis of benefits and harms,” British Journal of Sports Medicine. 2015.
 J. D. Marsh et al., “Cost-effectiveness analysis of arthroscopic surgery compared with non-operative management for osteoarthritis of the knee,” BMJ Open, 2016.