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Updated: May 16, 2026

Clinical Protocol of Producing Adipose Tissue-Derived Stromal Vascular Fraction for Potential Cartilage Regeneration
Published on: September 29, 2018
[Pellegrini-Stieda syndrome as a cause of knee pain]
J A Santos Sánchez1, L R Ramos Pascua, D García Casado
1Servicio de Radiodiagnóstico, Hospital Universitario de Salamanca, Salamanca, España.
Abstract:
Calcification in the soft tissue next to the medial femoral condyle after a history of trauma around the knee is a recognized radiographic finding-PS (Pellegrini-Stieda) sign. When this is associated with pain and a restricted range of motion it is known as the PS syndrome. We describe two cases of PS syndrome, treated conservatively with rest and physiotherapy, as well as the radiographic and ultrasound findings, and the many theories proposed in attempts to explain the pathogenesis of PS disease.
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