What might lead to an uneven arm swing in a TF amputee?

An uneven arm swing in a transfemoral (TF) amputee can be attributed to improper suspension. Effective suspension is crucial in maintaining the prosthetic limb's stability and positioning during ambulation. If the suspension system does not securely hold the prosthesis in place, any movement or shift in the socket can affect the alignment and function of the prosthetic limb. This instability may force the individual to adjust their gait, leading to compensatory movements such as an asymmetric arm swing.

An even arm swing is typically a reflection of balanced gait mechanics. When suspension is inadequate, the user may unconsciously alter their movement patterns to compensate for the lack of support, which can result in an uneven or asymmetrical arm swing.

In contrast, poor foot alignment, knee instability, and soft socket padding can contribute to gait issues but do not directly influence the symmetry of the arm swing as significantly as improper suspension does. While these factors may cause problems in balance or comfort, they would not inherently create the adaptive response of an uneven arm swing that arises from issues with the suspension system of the prosthetic limb.