For targeting L5-S1, what is the recommended hip flexion angle during traction?

For targeting L5-S1, what is the recommended hip flexion angle during traction?

• A. 0-15 degrees
• B. 60-75 degrees
• C. 45-60 degrees
• D. 75-90 degrees

Answer: (C)

Positioning during lumbar traction determines which spinal levels the force most effectively distracts. The hip angle changes the orientation of the traction line across the lumbar spine, so adjusting hip flexion steers the target to a specific segment. For the L5-S1 junction, a moderate hip flexion around 45–60 degrees places the traction line to most effectively distract the lumbosacral area. If the hips are near a neutral position (0–15 degrees), the force tends to bias toward higher lumbar levels; if the hips are highly flexed (75–90 degrees), the line can shift away from L5-S1 or cause discomfort, reducing focal effect there. The mid-range flexion optimizes alignment and mechanical advantage at L5-S1.

Positioning during lumbar traction determines which spinal levels the force most effectively distracts. The hip angle changes the orientation of the traction line across the lumbar spine, so adjusting hip flexion steers the target to a specific segment.

For the L5-S1 junction, a moderate hip flexion around 45–60 degrees places the traction line to most effectively distract the lumbosacral area. If the hips are near a neutral position (0–15 degrees), the force tends to bias toward higher lumbar levels; if the hips are highly flexed (75–90 degrees), the line can shift away from L5-S1 or cause discomfort, reducing focal effect there. The mid-range flexion optimizes alignment and mechanical advantage at L5-S1.