Spinal fusion: A surgical procedure in which two or more of the vertebrae in the spine are united together so that motion no longer occurs between them. Spinal fusion may be done to treat a number of conditions, including scoliosis, deformity, fracture, and disc disease. Bone grafts are usually placed around the section of the spine to be fused. The body then heals the grafts over several months, which joins the vertebrae together. The bone for the graft may be taken from another bone in the patient (autograft) or from a bone bank (allograft).
Main article: Weather in Madrid in May. The average maximum temperature in Madrid in May is 72Â°F/22Â°C and the average minimum temperature is 48Â°F/9Â°C.
Madrid Geography. Madrid is a city that comes under the Mediterranean climate. Due to high altitude winters are cooler with periodic snowfalls. Minimum temperature falls below 0 Â°C (32 Â°F). Madridâs summer is hot with temperatures touching 30 Â°C (86 Â°F) in July and that can often reach up to 40 Â°C (104 Â°F). Due to its high altitude base and dry climate Madrid experiences cooler nights in the summer, compared to the scorching heat of the day. Precipitation levels are low, but precipitation can be observed all throughout the year. Summer and winter are the driest seasons. Most of the rainfall occurs in the autumn and spring.