Factors related to Sinding-Larsen-Johansson disease

Abstract

Introduction: Sinding-Larsen-Johansson disease (SLJ) is an osteochondrosis that leads to ossification at the proximal insertion of the patellar tendon in the lower pole of the patella, with variable and nonspecific symptoms. Diagnosis is primarily clinical, although it is complemented by X-rays and MRI. Objective: To determine the factors related to Sinding-
Larsen-Johansson disease in patients attending Clinica Internacional in Lima. Materials and Methods: Observational, retrospective, longitudinal, and descriptive study. Clinical, etiological, and biomechanical factors were collected from digital files of medical records and Carestream Vue Motion and ZFP Viewer visualization systems. Microsoft Excel and
STATA-17 were used to determine absolute frequencies (n) and relative frequencies (%). Results: The sample consisted of 34 cases, with 91.17% being males. Children and adolescents accounted for 55.88% of the cases. The most frequent radiological stage was type IV, accounting for 47.05%. Concomitant Osgood-Schlatter disease was present in 23.53% of
the cases. 50% of the patients were involved in sports activities. The clinical presentation was acute in 73.53% of cases, and 47.06% had high patella. Conclusions: SLJ disease is a common pathology in pediatric age, and it is necessary to recognize it in order to provide timely diagnosis and treatment. X-rays should always be the initial diagnostic tool, and MRI should be performed if necessary.