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Calcific Enthesitis of Lateral Patellofemoral Ligament: A Rare Cause of Anterolateral Knee Pain

Year: 2024

Type: article

Abstract: Hydroxyapatite deposition disease is a common musculoskeletal pathology that often affects rotator cuff tendons in the shoulder joint. Here, we present the first documented case of acute calcific enthesitis involving the lateral patellar retinaculum, specifically the lateral patellofemoral ligament (LPFL). A 35-year-old male presented with insidious onset atraumatic pain persisting for 3 months on the lateral aspect of the knee, intensifying over the past week. Clinical examination revealed focal tenderness in the anterolateral region of the knee, with no signs of patellar instability. Magnetic resonance imaging was performed, which revealed thickening and calcification within the LPFL and perilesional edema, further confirmed on computed tomography and ultrasonography. Patient was managed successfully with barbotage with complete resolution of symptoms. This case highlights the importance of considering calcification of LPFL in the differential diagnosis of anterolateral knee pain and underscores the importance of different imaging modalities for prompt diagnosis.

Source: Indian journal of radiology and imaging - new series/Indian journal of radiology and imaging/Indian Journal of Radiology & Imaging

DOI: 10.1055/s-0044-1793807

Authors: Sindhura Mettu, Kapil Shirodkar, Robert Henderson, Karthikeyan P. Iyengar, Rajesh Botchu

Institutions: Royal Orthopaedic Hospital, Southport and Ormskirk Hospital NHS Trust

Language: English

Topic: Tendon Structure and Treatment

Subfield: Orthopedics and Sports Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W4404513641