A clinical improvement was found in patients more than 40 years old, who in most cases benefited from second-generation ACI with good results lasting at medium-term follow-up. However, the results were inferior with respect to those previously found for younger populations, and the failure rate at medium-term follow-up was also higher. These findings were consistent in the 2 treatment groups. The only difference was the faster recovery when the arthroscopic approach was used.

II.

No abstract

Spinal anesthesia is a common procedure performed in orthopedic surgery, and it is regarded as secure and safe. Although puncture-related complication of spinal anesthesia has a very low incidence, it would lead to dramatic neurological damage (tetra- or paraplegia). Early diagnosis and surgical decompression are mandatory to promote a better outcome. We present a case of acute spinal hematoma from T11 to L3, triggered by laborious anesthesia puncture after total knee arthroplasty. A prompt surgical decompression within few hours after diagnosis allowed rapid functional recovery and avoided permanent paraplegia.