Anterior thigh pain has a number of different disorders associated with it. The L2, L3 and occasionally the L4 nerve will radiate there. The hip joint can refer pain here and there is a sensory nerve that occasionally can be painful (lateral femoral cutaneous nerve).
Standing pain that is relieved by sitting clues into stenosis pain caused by foraminal stenosis, lateral recess stenosis or central stenosis (see website).
Depending upon your disorder, many of those noted therapies can help.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.