Which of the following clinical findings is characteristic of both osteomalacia and rickets?

Muscle weakness is common in both rickets and osteomalacia, and proximal leg muscles are particularly involved. The combination of leg deformity and muscle weakness in rickets can result in an inability to walk. The presentation of osteomalacia is more insidious in the elderly, but proximal myopathy may be severe enough to cause a waddling gait and mimic a primary muscle disorder. The other clinical findings listed are found only in rickets.