Hi, My mother is 60 years of age and has been a osteopenia patient past 3-4 years. Recently she was deducted with osteoporotic fractures on L1 and L2 spine which has lead to nerve compressions and sciatica pain. We started consulting our ortho initially due to this unique sciatica pain and finally diagnosed them using XRAY/MRI and CT scans as being caused due to the Lumbar spine fractures.Her current T-Score is around -1.5. She has been started on Foteo drug a month back to avoid further fractures. A unusual thing we are noticing with her after she started with Forteo is that she seem to just get sudden leg weakness to the extent that she falls down suddenly with no notice. Such things have never happened before and she is still an active person who does all her regular routines though bit curtailed by the nerve compression pains. Given her existing spinal deformations these falls are really scary as they might aggrevate the risk of fractures. We are very much worried if this weakness is a possible side effect of Forteo or something totally different. Is their someone facing similar effects or would be very much hapy to hear back on any advice from any med experts. Thanks in advance.