Veterans who received upper-limb prosthetics within six months were more likely to still use them

Fitting timing in upper-limb prosthetics has been studied before, but rarely in large samples and with careful regression modeling. A cross-sectional study of 698 veterans with major upper-limb amputations puts numbers to the relationship. The pattern points one direction: receiving a first prosthesis within the first six months was associated with better long-term use and satisfaction than waiting.

The study, published open access in Prosthetics and Orthotics International, is titled “The association between upper limb prosthesis receipt timing and prosthesis adoption and satisfaction: Findings from a cross-sectional study.”

What the researchers measured

The team used logistic regression to examine the relationship between receipt timing and two outcomes: current prosthesis use (yes or no) and whether a veteran used the device for at least eight hours a day. Linear regression covered a third outcome: satisfaction, scored with the Trinity Amputation and Prosthetic Experience Scales (TAPES).

Controls included age, gender, amputation level, race, ethnicity, amputation cause, time from injury to amputation, years since amputation, and prosthesis type. Those are the variables most likely to confound timing comparisons; controlling for them separates the finding from a simple before-after count.

What they found

The reference group was veterans who received their prosthesis three to six months after amputation. Compared with that group:

• Veterans who waited six to 12 months had lower odds of currently using their prosthesis.
• Veterans who waited more than 12 months also had lower odds of currently using their prosthesis.
• Satisfaction scores were 0.22 points lower for the six-to-12-month group.

One result sits apart from the others: receipt timing was not associated with hours of daily use. Long wait times appear to affect whether someone uses a prosthesis at all, more than they affect how much a current user actually wears it.

What this means

The study doesn’t establish cause. A cross-sectional design can’t separate “late fitting caused lower use” from “veterans who faced barriers to fitting also faced barriers to adoption.” But the controls are thorough, and the association holds across two of three measured outcomes.

For clinical teams, the three-to-six-month window is the comparison point. Fitting that happens later, whether from referral delays, insurance denials, fabrication backlogs, or a veteran’s own hesitation, is tied to lower rates of continued use. That association survives controlling for amputation cause, years since amputation, and prosthesis type.

For veterans navigating the VA or private coverage systems, this data matters when pushing back against delays. “Early fitting improves long-term use” is now a claim that can cite a 698-person peer-reviewed study, not just clinical consensus.

The limits of the data

The population is veterans, which skews older and more male than the full upper-limb amputee population. The dataset also can’t capture why veterans received their prosthesis at a given time, only when. Whether the mechanism is neuroplasticity, habit formation, or some other factor isn’t answered here.

The null result on hours of daily use is also worth holding onto. Late fitting appears to raise the risk that someone never becomes a consistent user; it doesn’t appear to reduce use once adoption happens. Those are different problems and probably call for different solutions.

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This article is based on published research and is for general informational purposes only. It is not clinical or medical advice. Prosthetic fitting decisions should involve a certified prosthetist and the clinical team managing your care.