| RPNI | Regenerative peripheral nerve interface |
| TMR | Targeted muscle reinnervation |
| PLP | Phantom limb pain |
| RLP | Residual limb pain |
| PROMIS | Patient-Reported Outcomes Measurement Information System |
| RR | Risk ratio |
| OR | Odds ratio |
| CI | Confidence interval |
| ROBINS-I | Risk Of Bias In Non-randomised Studies of Interventions |
| GRADE | Grading of Recommendations Assessment, Development and Evaluation |
| PRISMA | Preferred Reporting Items for Systematic Reviews and Meta-Analyses |
| CENTRAL | Cochrane Central Register of Controlled Trials |