What does this research mean for the field?

In a cadaveric model, the modified MacIntosh ACL reconstruction anteriorizes and mildly increases lateral compartment contact stress compared to the native knee, while its extra-articular limb partially offloads the intra-articular graft during rotational loads. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This research aims to understand the effects of modified MacIntosh ACL reconstruction on knee mechanics, particularly contact stress and graft loading.

June 7, 2026The American Journal of Sports Medicine

In Vitro Evaluation of Tibiofemoral Contact Stress and Graft Loading After Modified MacIntosh Anterior Cruciate Ligament Reconstruction

View Full Paper

Ask AI

Bookmark

This research aims to understand the effects of modified MacIntosh ACL reconstruction on knee mechanics, particularly contact stress and graft loading.
Evaluated eight cadaveric knees under three conditions: intact, ACL-sectioned, and modified MacIntosh ACLR.
Measurements included peak contact stress and the center of contact stress during simulated pivot shifts.
Laxity was assessed under various loading conditions to determine changes in knee stability.
Lateral tibiofemoral contact stress was anteriorized and mildly increased compared to the intact knee.
In situ graft force was significantly lower (51% to 65% less) than the native ACL during pivot shift tests.
The extra-articular component provided additional stability against rotational loads, partially offloading the intra-articular graft.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Controlled laboratory study evaluates tibiofemoral contact stress and graft loading in skeletally immature knees, suggesting biomechanical insights for ACL reconstruction.

Cite This Study

Bram et al. (2026) studied this question.

synapsesocial.com/papers/6a250b0e7def13d035e1b16e https://doi.org/10.1177/03635465261449796

View Full Paper

Ask AI

Bookmark

Implication

Controlled laboratory study evaluates tibiofemoral contact stress and graft loading in skeletally immature knees, suggesting biomechanical insights for ACL reconstruction.

In Vitro Evaluation of Tibiofemoral Contact Stress and Graft Loading After Modified MacIntosh Anterior Cruciate Ligament Reconstruction

Key Points

Discussion

Implication

Cite This Study

In Vitro Evaluation of Tibiofemoral Contact Stress and Graft Loading After Modified MacIntosh Anterior Cruciate Ligament Reconstruction

Key Points

Discussion

Implication

Cite This Study

Keep reading

Keep reading