LBP And Lower Limb Discrepancy: 3D Evaluation Of Postural Rebalancing Via Underfoot Wedge Correction.
D'Amico M, Roncoletta P, Di Felice F, Porto D, Bellomo R, Saggini R. Stud Health Technol Inform. 2012;176:108-12.
Hum. What proportion of the general population present with an asymptomatic LLD? How was it measured? With what degree of claimed accuracy? Where did it come from? Who thought of the phrase "underfoot wedge correction"? Curse these paywalls!
Correction of leg-length discrepancy among meat cutters with low back pain: a randomized controlled trial.
Rannisto S et al BMC Musculoskelet Disord. 2019 Mar 14;20(1):105
Orthotic Insoles Improve Gait Symmetry and Reduce Immediate Pain in Subjects With Mild Leg Length Discrepancy
Charlotte Menez, Maxime L'Hermette, Jeremy Coquart Front Sports Act Living. 2020 Dec 16;2:579152
If you are determined to compensate for the LLD by using a correction underneath the short limb, ONLY USE a full heel to toe platform.
If you use a heel lift only, it will lock the innominate anteriorly.
Leg Length Discrepancy and Nonspecific Low Back Pain: 3-D Stereophotogrammetric Quantitative Posture Evaluation Confirms Positive Effects of Customized Heel-Lift Orthotics
Moreno D'Amico et al Front Bioeng Biotechnol. 2022 Feb 10