The Effect of Concavity Restoration on Glenohumeral Stability in a Glenoid Bone Loss Model: Comparing Distal Tibial Allograft Reconstruction to Classic Latarjet

Written By Matt Fury

Fury MS, Cirino CM, Jahandar A, Rauck RC, Gulotta LV, Dines DM, Dines JS, Blaine TA, Fu MC, Warren RF, Kontaxis A, Taylor SA. The Effect of Concavity Restoration on Glenohumeral Stability in a Glenoid Bone Loss Model: Comparing Distal Tibial Allograft Reconstruction to Classic Latarjet. Am J Sports Med. 2025 Mar;53(4):928-934. doi: 10.1177/03635465251318337. Epub 2025 Feb 7. PMID: 39920605.

Background: Distal tibial allograft (DTA) reconstruction for glenoid bone loss (GBL) has gained popularity. While recent studies have demonstrated that glenoid concavity is an important factor in native glenohumeral stability, there remains a paucity of data regarding concavity restoration during reconstructive procedures for GBL and its biomechanical effect.

Purpose: To compare the restoration of anterior glenohumeral stability and glenoid concavity after DTA and classic Latarjet procedures.

Conclusion: DTA produces a more concave reconstruction and decreased anterior translation compared with the flatter reconstruction produced by the classic Latarjet procedure without the sling effect. DTA and the classic Latarjet procedure with conjoint tendon loading yielded equivalent reductions in anterior translation. Distal tibial allograft reconstruction is a biomechanically equivalent alternative to the classic Latarjet due to the restoration of glenoid concavity in addition to glenoid width.

Read the full article on PubMed: https://pubmed.ncbi.nlm.nih.gov/39920605/

Matt Fury
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The Effect of Capsular Repair Location on Humeral Head Position and Translation After Distal Tibial Allograft Reconstruction: A Cadaveric Study