The shape of the hand contoured commercially pure titanium rods are the least stable for use in all temperature conditions, and autoclaving before handcontouring often increases the rods' shape loss, according to a study published in Spine.
Researchers examined the CPTi, stainless steel and titanium-aluminum-vanadium alloy rods to test durability under different temperature conditions. The rods were hand contoured and placed in room temperature environments without autoclaving before contouring or in warmer temperatures with preliminary autoclaving. The rods were kept in these conditions for 35 days.
There was a significant shape loss of all rods over time. The hand contoured CPTi rods showed the highest loss of curvature, followed by the Ti-6AI-4V and SS rods at all temperature conditions. The preliminary autoclaving at 135 degrees enhanced the shape loss, but if the number of preliminary autoclaving cycles was between five and 10, there was a tendency for decreased shape loss in the Ti-6AI-4V and CPTi rods.
Read the abstract about the spinal surgery rods.
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Researchers examined the CPTi, stainless steel and titanium-aluminum-vanadium alloy rods to test durability under different temperature conditions. The rods were hand contoured and placed in room temperature environments without autoclaving before contouring or in warmer temperatures with preliminary autoclaving. The rods were kept in these conditions for 35 days.
There was a significant shape loss of all rods over time. The hand contoured CPTi rods showed the highest loss of curvature, followed by the Ti-6AI-4V and SS rods at all temperature conditions. The preliminary autoclaving at 135 degrees enhanced the shape loss, but if the number of preliminary autoclaving cycles was between five and 10, there was a tendency for decreased shape loss in the Ti-6AI-4V and CPTi rods.
Read the abstract about the spinal surgery rods.
Read Articles Related to Spine Surgery:
Hybrid Growing Rods May Decrease Complication Rate Among Young Spine Surgery Patients
Study: Rotating Rod Effective for Spine Surgery Technique
Spine Surgical Innovation Announces Launch of New Rod Cutter