question: My son slipped and landed on his left side. Hes had xrays of femur, hips and lower spine but is unable to sit on his bottom due to pain, also pain on outside on left thigh unable to bend knee or weight bare. Also crys going around bend or if I m braking in car. No visible fracture on xray. Physio has said soft tissue damage and told him that he needs to keep trying to bend his leg and weight bare.