The bicipital groove: radiographic, anatomic, and pathologic study

Area of Science:

• Orthopedic Surgery
• Radiology
• Anatomy

Background:

• The bicipital groove (intertubercular sulcus) of the humerus is crucial for shoulder function.
• Understanding its normal morphology and variations is essential for diagnosing pathologies.

Observation:

• Radiographs and pathologic specimens were used to analyze the bicipital groove.
• Key parameters evaluated included medial wall angle, sulcus depth/width, and bony spurs.
• The supratubercular ridge was noted as a common osseous protuberance without apparent pathology.

Findings:

• Established normal configurations and common abnormalities of the bicipital groove.
• Characterized specific measurements like medial wall angle and sulcus dimensions.
• Identified the supratubercular ridge in approximately 50% of cases, deeming it non-pathologic.

Implications:

• Provides a baseline for identifying bicipital groove abnormalities.
• A specific radiographic projection is detailed for improved evaluation.
• Aids clinicians in accurate diagnosis and treatment planning for shoulder conditions.