,DE QUERVAIN'S RELEASE: , With the patient under adequate regional anesthesia applied by surgeon using 1% plain Xylocaine, the upper extremity was prepped and draped in a sterile manner. 
,DE QUERVAIN 'S RELEASE : , With the patient under adequate regional anesthesia applied by surgeon using 1 % plain Xylocaine , the upper extremity was prepped and draped in a sterile manner .