20114
document
Slotted versus non-slotted locked intramedullary nailing for femoral shaft fractures . Experimentally , two slotted nails , the Grosse-Kempf nail and the AO/ASIF universal femoral nail , were compared to the non-slotted Grosse-Kempf nail and control bone using a cadaver femoral osteotomy . The stiffnesses and strengths of the osteotomies fixed with slotted nails in 10-30 degrees torsion were 6-8 % and the values of non-slotted nails 40 % of control bone . The maximal moments were 14-18 % and 48 % , respectively . In the " clinical range " of torsion , the implant-bone construct never failed or was deformed . Clinically , 46 femoral shaft fractures were randomized to treatment with Gross-Kempf nails , 24 with slotted nails and 22 with non-slotted nails . Four complications in the slotted nail group and three in the non-slotted nail group were considered to be independent of the choice of nail and did not affect the end result . Three splinterings of the distal fragment , one resulting in a change of the osteosynthesis implant to a condylar plate , were considered to result from the high stiffness of the non-slotted nail . Osteosynthesis of femoral shaft fractures using slotted nails has not resulted in healing disturbances , which could be accounted for by the high torsional elasticity of the nail ; there seems to be no indication for high-stiffness nails in femoral fractures .
20115
Intervention_Surgical
Slotted versus non-slotted locked intramedullary nailing
20116
Intervention_Surgical
two slotted nails , the Grosse-Kempf nail
20117
Intervention_Surgical
AO/ASIF universal femoral nail
20118
Intervention_Physical
non-slotted Grosse-Kempf nail
20119
Intervention_Physical
control bone
20120
Intervention_Physical
cadaver femoral osteotomy
20121
Intervention_Surgical
slotted nails
20122
Intervention_Surgical
Gross-Kempf nails
20123
Intervention_Surgical
slotted nails
20124
Intervention_Surgical
non-slotted nails
20125
Outcome_Physical
stiffnesses and strengths of the osteotomies fixed
20126
Outcome_Physical
maximal moments
20127
Outcome_Physical
implant-bone construct
20128
Outcome_Adverse-effects
complications
20129
Outcome_Physical
splinterings of the distal fragment
20130
Outcome_Physical
change of the osteosynthesis implant
20131
Participant_Condition
cadaver femoral osteotomy
20132
Participant_Sample-size
46
20133
Participant_Condition
femoral shaft fractures
20134
Participant_Sample-size
24
20135
Participant_Condition
slotted nails
20136
Participant_Sample-size
22
20137
Participant_Condition
non-slotted nails
20138
Participant_Condition
femoral fractures