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: Annual Weather Averages July is the hottest month in Madrid with an average temperature of 76 Â°F (25 Â°C) and the coldest is January at 42 Â°F (6 Â°C) with the most daily sunshine hours at 11 in August. The wettest month is April with an average of 50mm of rain.