Fig. 3From: Can convertible metal-backed glenoid components replace cemented polyethylene glenoid components in anatomical total shoulder arthroplasty?(a) The thickness of the polyethylene system without the metal-backed baseplate is approximately 4Â mm. (b) Mechanism of the convertible metal-backed system, in which the metal baseplate is firmly fixed to the glenoid before polyethylene is inserted thereon, inevitably requires a thicker glenoid component than do the conventional polyethylene glenoid componentsBack to article page