Editorial Commentary: The Hip Bone's Connected to the Knee Bone, but Correlation Does Not Equal Causation—The Association of Hip Motion, Femoroacetabular Impingement, and Anterior Cruciate Ligament Injury

Joshua D. Harris

doi:10.1016/j.arthro.2016.11.015

Editorial Commentary: The Hip Bone's Connected to the Knee Bone, but Correlation Does Not Equal Causation—The Association of Hip Motion, Femoroacetabular Impingement, and Anterior Cruciate Ligament Injury

Joshua D. Harris

Research output: Contribution to journal › Editorial › peer-review

6 Scopus citations

Abstract

Patients with anterior cruciate ligament (ACL) injury had significantly less hip rotational motion (internal rotation [IR] and sum of IR and external rotation) than control subjects without ACL tears. For each hip IR increase of 10°, the odds of sustaining an ACL rupture decreased by a factor of 0.419. Although this investigation does not prove (causation) that loss of hip rotational motion causes an ACL tear, it does continue to complement the growing and evolving literature base showing an upstream or downstream association (correlation) of decreased hip motion on adjacent structures.

Original language	English (US)
Pages (from-to)	326-328
Number of pages	3
Journal	Arthroscopy - Journal of Arthroscopic and Related Surgery
Volume	33
Issue number	2
DOIs	https://doi.org/10.1016/j.arthro.2016.11.015
State	Published - Feb 1 2017

ASJC Scopus subject areas

Orthopedics and Sports Medicine

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Editorial Commentary: The Hip Bone's Connected to the Knee Bone, but Correlation Does Not Equal Causation—The Association of Hip Motion, Femoroacetabular Impingement, and Anterior Cruciate Ligament Injury. / Harris, Joshua D.
In: Arthroscopy - Journal of Arthroscopic and Related Surgery, Vol. 33, No. 2, 01.02.2017, p. 326-328.

Research output: Contribution to journal › Editorial › peer-review

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abstract = "Patients with anterior cruciate ligament (ACL) injury had significantly less hip rotational motion (internal rotation [IR] and sum of IR and external rotation) than control subjects without ACL tears. For each hip IR increase of 10°, the odds of sustaining an ACL rupture decreased by a factor of 0.419. Although this investigation does not prove (causation) that loss of hip rotational motion causes an ACL tear, it does continue to complement the growing and evolving literature base showing an upstream or downstream association (correlation) of decreased hip motion on adjacent structures.",

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Editorial Commentary: The Hip Bone's Connected to the Knee Bone, but Correlation Does Not Equal Causation—The Association of Hip Motion, Femoroacetabular Impingement, and Anterior Cruciate Ligament Injury

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