To decide whether the same method can be used to measure the specific heat capacity of a sample, the following factors that affect measurement during thermal diffusivity tests need to be analyzed: 1  Rise in temperature. 2  Laser pulse magnitude. 3  Reflection by other media. 4  Sample-related problems.
Extreme Lateral Interbody Fusion (XLIF) Extreme lateral interbody fusion (XLIF) is a minimally invasive procedure performed through the side of the body to treat spinal disorders and reduce long-term back or leg pain that has not responded to other treatments, such as steroid injections, physical therapy and pain medication.
XLIF is unique in that it can be used to gain access to the lumbar spine via a lateral approach by splitting the center psoas major muscle. In this regard, the approach to L5-S1 is extremely difficult because of the presence of the iliac crest. Miniopen oblique lumbar interbody fusion (OLIF) was reported in 2012 [8]. In this procedure, a 4 cm skin incision is made 6â10 cm anterior from the midportion of an intervertebral disk; the approach is made between the peritoneum and the psoas muscle.