arthroplasty of first metatarsophalangeal joint

例句：

1. 1.After the surgery, she had to wear a cast for several weeks.
   手术后，她不得不戴石膏几周。
2. 2. The doctor explained that arthroplasty is a common procedure for treating joint pain.
   医生解释说，关节置换术是治疗关节疼痛的常见程序。
3. 3. Arthroplasty can improve the quality of life for many people with joint problems.
   关节置换术可以提高许多人的生活质量。