Table 1 Inclusion and exclusion criteria
Inclusion criteria: • Indication for screw fixation of scaphoid fracture which is not older than 12 weeks; classification by Herbert, modified by Krimmer of types A2, B1, B2, B3 [4], • normal wrist function prior to fracture, • age ≥ 18 years, • written informed consent for trial participation and surgery. Exclusion criteria: • Previous surgery on the wrist, associated injuries, state after or suspicion of complex regional pain syndrome (CRPS), • simultaneous fractures of the forearm of both sides and those who will influence the postoperative care, • known ligamentary concomitant injuries of the wrist on both sides and those who will influence the post-operative care, • radiological findings of medium to high grade osteoporosis, • intended or conducted spongiosa transplantation or bone graft transplantation during surgery, • pregnancy, suspected pregnancy or breastfeeding period, • allergies to components of osteosynthesis material, • participation in other clinical trials up to 30 days before inclusion in this trial, • central neurological deficits which do not permit a compliance to the trial, especially during follow-up, • for patients recruited to the centers near Hanover and undergoing MRI: claustrophobia and metallic implants which are contraindicative for an MRI. |