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For people who are younger than age 5 when LCPD develops, the incidence of degenerative arthritis later in life is reportedly very low. The more deformed the femoral head is during healing, the greater the risk of osteoarthritis of the hip later in life. The risk is also higher for those with metaphyseal defects (where the shaft of the bone flares out); and for those who develop LCPD late in childhood (at age 10 or older). Nearly 100% of people with complex involvement of the femoral head and residual deformity will develop degenerative arthritis. Total hip replacement in early adulthood may be needed in some cases.