Predisposición familiar en la rotura del ligamento anterior cruzado. (Inglés)

R. Kevin Flynn, MSc*, Cheryl L. Pedersen, MSc*, Trevor B. Birmingham, PhD*, Alexandra Kirkley, MD, Dianne Jackowski, MSc and Peter J. Fowler, MD*,

From the * Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, London, Ontario, Canada, and the Department of Clinical Epidemiology & Biostatistics, McMaster University, Hamilton, Ontario, Canada

Purpose: A study of 171 surgical cases and 171 matched controls was conducted to investigate whether a familial predisposition toward tearing the anterior cruciate ligament of the knee exists.

Study Design: Case control study; Level of evidence, 3.

Methods: Patients who were diagnosed with an anterior cruciate ligament tear were matched by age (within 5 years), gender, and primary sport to subjects without an anterior cruciate ligament tear. All 342 subjects completed a questionnaire detailing their family history of anterior cruciate ligament tears.

Results: When controlling for subject age and number of relatives, participants with an anterior cruciate ligament tear were twice as likely to have a relative (first, second, or third degree) with an anterior cruciate ligament tear compared to participants without an anterior cruciate ligament tear (adjusted odds ratio = 2.00; 95% confidence interval, 1.19–3.33). When the analysis was limited to include only first-degree relatives, participants with an anterior cruciate ligament tear were slightly greater than twice as likely to have a first-degree relative with an anterior cruciate ligament tear compared to participants without an anterior cruciate ligament tear (adjusted odds ratio = 2.24; 95% confidence interval, 1.24–4.00).

Conclusions: Findings are consistent with a familial predisposition toward tearing the anterior cruciate ligament.

Clinical Relevance: Future research should concentrate on identifying the potentially modifiable risk factors that may be passed through families and developing strategies for the prevention of anterior cruciate ligament injuries.

The American Journal of Sports Medicine 33:23-28 (2005).

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