The upper motor neuron dysfunction, such as in the cases of stroke, spinal cord injury, and multiple sclerosis, can usually cause the spasticity of thigh adductor muscles. The spasticity of these muscles can affect patients in perineal hygiene, siting, and standing with subsequently results in disruption of normal daily life (Kwon et al.).
The anatomical analysis of NEPs (some authors named them "Motor Points") in thigh adductor muscles has been reported before.
Based on the results of this study, we suggest that during the practice of chemical neurolysis treatment to thigh adductor muscles spasticity, one could measure on body surface the length between greater trochanter of femur and pubic tubercle (H line), and the length from greater trochanter of femur to lateral epicondyle of femur (L line).