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Journal of Bone and Joint Surgery - British Volume, Vol 71-B, Issue 5, 825-833
Copyright © 1989 by British Editorial Society of Bone and Joint Surgery

Articles

Partial tears of the anterior cruciate ligament. Progression to complete ligament deficiency

FR Noyes, LA Mooar, CT Moorman 3rd, and GH McGinniss

Cincinnati Sportsmedicine Research Department, Deaconess Hospital, Ohio 45219.

In a prospective seven-year study, we treated 32 patients with partial ruptures of the anterior cruciate ligament (ACL) verified by arthroscopy. Twelve knees (38%) progressed to complete ACL deficiency with positive pivot shift tests and increased anteroposterior translation on tests with the KT-1000 arthrometer. Patients with partial ACL tears frequently had limitation for strenuous sports, while those developing ACL deficiency had additional functional limitations involving recreational activities. Three factors were statistically significant in predicting which partial tears would develop complete ACL deficiency: the amount of ligament tearing--one-fourth tears infrequently progressed, one-half tears progressed in 50% and three-fourth tears in 86%; a subtle increase in initial anterior translation; and the occurrence of a subsequent re-injury with giving-way.




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Registered charity no: 209299     Print ISSN: 0301-620X
Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General