A. Tzaveas, R. Villar
The Richard Villar Practice, Wellington Hospital, London, UK
Aim: To present an anatomical variant of the acetabulum that resembles a subchondral cyst on magnetic resonance imaging.
Material and method: Four patients with hip symptoms underwent contrast-enhanced magnetic resonance imaging, which showed a finding consistent with a subchondral cyst of the acetabulum. All the patients underwent hip arthroscopy.
Results: In all the patients a horseshoe-shaped extension of the cotyloid fossa was observed. Additional pathological findings were also seen, which were treated accordingly and to which the patients’ symptoms were attributed.
Conclusions: The cystic lesions seen on magnetic resonance imaging are not always pathological and may simply represent a normal anatomical or developmental variant of the hip joint. Nor are they an indication for arthroscopic hip surgery.
Hip Arthroscopy
CYST-LIKE FORMATION OF THE ACETABULAR ROOF: A PATHOLOGICAL FINDING OR AN ANATOMICAL VARIANT?
Dr Alexandros P. Tzaveas
Orthopaedic Surgeon
Medical Disclaimer
This article is for information only and does not constitute medical advice. For an individual assessment, please consult your doctor.
Summary
- Conclusions: The cystic lesions seen on magnetic resonance imaging are not always pathological and may simply represent a normal anatomical or developmental variant of the hip joint. Nor are they an indication for arthroscopic hip surgery.
- Material and method: Four patients with hip symptoms underwent contrast-enhanced magnetic resonance imaging, which showed a finding consistent with a subchondral cyst of the acetabulum. All the patients underwent hip arthroscopy.
- Results: In all the patients a horseshoe-shaped extension of the cotyloid fossa was observed. Additional pathological findings were also seen, which were treated accordingly and to which the patients’ symptoms were attributed.
hiparthroscopy
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