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 Weather and When to Go. Madrid weather essentials. Spring and Autumns are perhaps the best times of the year to visit Madrid. The weather is mild and the air is crisp. But the two seasons present some differences that you may want to consider when you are planning your trip to the city. During Spring, that goes from March through May, the days are warm, and the nights, cool.