A Comparison of the Disassociation Strength of Modular Acetabular Components

Polyethylene Liner Dissociation Is a Complication of the DePuy Pinnacle Cup: A Report of 23 Cases

“…The relatively fragile locking tines and liner-cup mismatch of the Harris Galante cup led to an unusually high number of failures not seen in other designs. Similarly, the DePuy Pinnacle has also demonstrated in the laboratory a pullout strength that is weaker than its prior designs [11,14,18]. The clinical correlation of this is now apparent.…”

Delta Ceramic-on-Alumina Ceramic Articulation in Primary THA: Prospective, Randomized FDA-IDE Study and Retrieval Analysis

“…We observed no cases of fracture or dissociation of the ceramic liner from within the polyethylene insert. The lack of liner dissociation may be in part due to the superior design of the RingLoc 1 liner locking mechanism [44,49]. Finally, the potential for backside polyethylene wear leading to osteolysis still exists in the current polyethylene sandwich model and a mechanism that completely eliminates polyethylene from the equation would be ideal.…”

The Value of High-Frequency Ultrasonographic Imaging for Quantifying Trigger Digits: A Correlative Study with Clinical Findings in Patients with Different Severity Grading

“…We included patients with typical symptoms of pain near the A1 pulley and a triggering or locking movement of the affected digit. Mechanical symptoms of the triggering phenomenon of the affected digit were graded using Froimson's classification (Tradonsky et al 1993) by the same surgeon (I.M.J. ), and we divided the digits into four groups: group I (Froimson grades II and III, noncontracture), group II (Froimson grade IV, contracture), group III all trigger digits (groups I and II) and group IV baseline (noninvolved contralateral digits).…”