1. After the injury, he developed anchylosis in his knee joint, making it difficult for him to walk properly.
（受伤后，他的膝关节出现了关节强直，使得他行走困难。）

2. Rheumatoid arthritis can lead to the formation of anchylosis in multiple joints, causing severe pain and immobility.
（类风湿性关节炎可以导致多个关节发生关节僵硬，引起严重的疼痛和运动障碍。）