[Late complications after cross-plate arthrodesis of the hip (author's transl)]

Cross-plate arthrodesis produces a problem of incongruence which cannot be solved by surgical skill Mechanical factors, not foreseeable before operation, produce an inevitable divergence of pulling and torsion forces with a high risk of losening of the implant and pseudarthrosis, particularly when the acetabulum is degenerated. The mechanical forces are shown in Fig. 6. The review of our cases shows that healing after cross-plate arthrodesis may follow three pathways.