Case Report: A Rare Case of Sinding Larsen-Johansson Syndrome in Adult

Mohamad Azwan Aziz, Dayyinah Radzi, Redzal Abu Hanifah


Sinding Larsen-Johansson syndrome is an osteochondrosis injury of the patella commonly seen in adolescents (between 10 to 14 years old). This case report covers an interesting case of Sinding Larsen-Johansson syndrome reported in a 33-year-old football athlete. He had been actively participating in many football tournaments for the last 18 years. He presented with anterior knee pain 1 month after experiencing a  traumatic sports injury in one of his football matches. He was diagnosed with complete anterior cruciate ligament rupture, with medial and lateral meniscus injury. MRI confirmed the diagnosis with and additional finding of chronic Sinding Larsen-Johansson syndrome. He did not compete in further football matches, and underwent intensive physiotherapy focusing on eccentric muscle strengthening exercise. His anterior knee pain improved as well as his knee stability. This article will discuss Sinding Larsen-Johansson Syndrome in detail.


Sinding Larsen Johannsson Syndrome, traction apophysitis, anterior knee pain


Alassaf, N. (2018). Acute presentation of Sinding-Larsen-Johansson disease simulating patella sleeve fracture: A case report. SAGE Open Medical Case Reports, 6, 2050313X1879924. doi:10.1177/2050313x18799242

Chr. M. F. Sinding-Larsen (1921) A Hitherto Unknown Affection of the Patella

in Children, Acta Radiologica, 1:2, 171-173, DOI: 10.3109/00016922109132957

Gorman McNerney, M. L., & Arendt, E. A. (2013). Anterior Knee Pain in the Active and Athletic Adolescent. Current Sports Medicine Reports, 12(6), 404–410. doi:10.1249/jsr.0000000000000013

Iwamoto J, Takeda T, Sato Y, Matsumoto H. (2009). Radiographic abnormalities of the inferior pole of the patella in juvenile athletes. Keio J Med,58(1):50e3.

Lorbach, O., Diamantopoulos, A., Kammerer, K.-P., & Paessler, H. H. (2007). The influence of the lower patellar pole in the pathogenesis of chronic patellar tendinopathy. Knee Surgery, Sports Traumatology, Arthroscopy, 16(4), 348–352. doi:10.1007/s00167-007-0455-0

Malherbe, K. (2019). Traction apophysitis of the knee: A case report. Radiology Case Reports, 14(1), 18–21. doi:10.1016/j.radcr.2018.09.012

Peace K., A, Lee J., C, Healy J. (2006). Imaging the infrapatellar tendon in the elite athlete. Clin Radiol Jul;61(7):570e8.

Schubert R, Gaillard F, et al. Sinding-Larsen-Johansson disease. http:// (accessed 16 July 2019).

Valentino M, Quiligotti C., R., M. (2012). Sinding-Larsen-Johansson syndrome: a case report. J Ultrasound.15:127–129.

Zarogianni C. (2007) : Sinding-Larsen Johanssen Syndrome - Case Report J.Orthopaedics, 4(4)e4