Comparative endurance testing of the Biomet Matthews Nail and the Dynamic Compression Screw, in simulated condylar and supracondylar femoral fractures

Table 1 Endurance testing of the Biomet Matthews Nail and the Dynamic Compression Screw tested with Y fractured composite femurs

	Biomet Matthews Nail with Y fractured femur		Dynamic Compression Screw with Y fractured femur
Max. & Min. of Load Cycle (kN)	Specimen Number	Cycles Completed	Specimen Number	Cycles Completed
2.0 & 0.2	1	1,000,000	1	1,000,000^#
2.0 & 0.2	2	315,043	2	1,000,000^#
3.0 & 0.3	3	22,356⁺
3.0 & 0.3	4	78,386

^# Post test examination revealed a fracture through the second hole, superior to the lag screw
⁺Lateral condyle bone segment shifted laterally until purchase on the distal locking screw became sufficient to bend it

ISSN: 1475-925X