What deformity was noted in the older female client with rheumatoid arthritis?

The swan neck deformity is a specific hand deformity commonly associated with rheumatoid arthritis, particularly in older female patients. This condition manifests as a hyperextension of the proximal interphalangeal joint combined with a flexion at the distal interphalangeal joint, creating an appearance reminiscent of a swan's neck. In rheumatoid arthritis, the chronic inflammation and erosive changes in the joints contribute to the development of this characteristic deformity over time.

In contrast, the other conditions listed, like boutonnière deformity or trigger finger, also relate to hand issues but present differently and are associated with different underlying pathologies. For example, boutonnière deformity involves the flexion of the proximal interphalangeal joint and extension of the distal interphalangeal joint, while trigger finger refers to a catching or locking sensation in the fingers due to tendon issues. Hammer toe pertains to the deformity of a toe rather than the fingers and does not have the same association with rheumatoid arthritis. Understanding these distinctions helps to recognize how different joint and tendon pathologies are presented in individuals with rheumatoid arthritis.