张某,女,36岁。1990年2月在外院于左上臂内侧行皮下埋植术(埋植剂为6支型)避孕6~+年,于1996年4月来我所更换埋植剂。检查原切口位于上臂内侧,距肘关节约8cm,从原切口取出埋植剂(6支)并向下埋植一组新的埋植剂(选择上海产埋植剂Ⅱ型2根)。手术顺利,无不适。次日患者因前臂不适伴左手发麻,且肘关节屈曲时,不适及麻木加重并放射至左小指,而来我所复诊。检查埋植剂的下端在肘上约3cm处,皮下可触及,皮埋处无红痛,考虑为因埋植剂位置过低,造成对尺神经的慢性机械刺激而产生的不良反应,故将埋植剂全部取出。诊断:皮下埋植剂引起尺神经刺激。术后1个月复查症状消失, Zhang, female, 36 years old. In February 1990 in the outer court in the left upper arm medial line subcutaneous implant (implants of 6) contraception 6 ~ + years, in April 1996 to replace the implants. The original incision was located inside the upper arm, approximately 8 cm from the elbow joint. Implants (6) were removed from the incision and a new group of implants (2 implants of type II were chosen) were implanted downwards. Smooth operation, no discomfort. The next day, my patient complained of my left arm because of my forearm discomfort, and my elbow was flexed. My discomfort, numbness and radiating to the left little finger came from my referral. Check the implants at the bottom of the elbow about 3cm at the subcutaneous touches, the skin burial no red pain, consider the placement of implants too low, resulting in ulnar nerve chronic mechanical stimulation and adverse reactions, it will be Implants all removed. Diagnosis: Subcutaneous implants cause ulnar nerve stimulation. 1 month after the review symptoms disappeared,