[Groin pain in athletes-sportsmen's groin].

CLINICAL/METHODICAL ISSUE: Groin pain in athletes can have various causes. Radiologically, osteitis pubis and clefts with affection of the interpubic disc as well as muscle and tendon tears near the pubic bone can be clearly identified.

STANDARD RADIOLOGICAL METHODS

Magnetic resonance imaging (MRI) is the imaging modality of choice, as well as single-leg stand imaging (flamingo view radiographs), and where appropriate symphysography.

METHODICAL INNOVATIONS

Optimized MRI sequence protocol with oblique (axial oblique) slices parallel to the linea arcuata of the iliac bone is recommended. High-resolution MRI sequences and symphysography can detect superior and secondary cleft formation. Instabilities of the pubic symphysis can be diagnosed using flamingo view radiographs.

PERFORMANCE

The MRI findings of osteitis pubis and clinical symptoms correlate. The presence of parasymphyseal bone marrow edema is the earliest morphological sign of acute osteitis pubis on MR imaging. Edema in the periosteal tissue and isolated muscle lesions next to the symphysis are generally associated with more severe clinical symptoms.

ACHIEVEMENTS AND PRACTICAL RECOMMENDATIONS

Close communication between radiologists and the referring physicians is indispensable when planning an adequate imaging protocol, and precise knowledge of the clinical symptoms in the case of clinical suspicion of osteitis pubis allows for a reliable diagnosis and provides important prognostic information.