Fig. 1From: Effect of glenoid concavity loss on shoulder stability- a case report in a professional wrestlerSchematic drawings of a gleno-humeral joint with illustrated translational force (T), compressive force (C), resulting joint force vector (R), joint radius (r), and concavity depth (d). The geometrical measurements and force vectors can be used to calculate the Bony Shoulder Stability Ratio (BSSR) as previously described [10]Back to article page