Loading…
Twelve-Year Follow-up on Anterior Cruciate Ligament Reconstruction
Background: Although successful at restoring near normal laxity to the knee in the short term, anterior cruciate ligament reconstructions have not been shown to prevent the development of posttraumatic arthritis. Hypothesis: Bone bruises and articular cartilage injuries sustained at the time of init...
Saved in:
Published in: | The American journal of sports medicine 2008-04, Vol.36 (4), p.671 |
---|---|
Main Authors: | , , , , , , |
Format: | Article |
Language: | eng ; jpn |
Citations: | Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Background: Although successful at restoring near normal laxity to the knee in the short term, anterior cruciate ligament reconstructions
have not been shown to prevent the development of posttraumatic arthritis.
Hypothesis: Bone bruises and articular cartilage injuries sustained at the time of initial injury (1991) would not resolve. Our secondary
hypothesis was that the presence of a bone bruise or articular cartilage injury originally identified on magnetic resonance
imaging would not be associated with long-term outcomes after anterior cruciate ligament reconstruction evaluated by the International
Knee Documentation Committee questionnaire.
Study Design: Cohort study (prognosis); Level of evidence, 1.
Methods: We attempted to contact all patients from an original cohort (N = 54) for follow-up evaluation, which included repeat radiographs,
magnetic resonance images, physical examination, and International Knee Documentation Committee questionnaire more than a
decade postoperatively.
Results: Forty-four patients (82% of the original cohort) returned for on-site follow-up. No patient with a bone bruise identified
on original magnetic resonance imaging had one identified at 12-year follow-up. The mean ( ± SD) International Knee Documentation
Committee score at follow-up with no bone bruise originally present was 70.6 ( ± 12.7) versus 70.0 ( ± 8.1) when a bone bruise
was observed ( P > .05). No consistent association was observed between the presence of an initial articular cartilage lesion with a lesion
on follow-up magnetic resonance images. The mean ( ± SD) International Knee Documentation Committee score at follow-up with
no articular cartilage injury was 69.0 ( ± 11.9) versus 72.8 ( ± 12.0) with articular cartilage lesion ( P > .05).
Conclusion: All bone bruises identified in our study with magnetic resonance imaging at the time of initial injury had resolved at 12-year
follow-up. The presence of a bone bruise at the time of initial injury did not significantly alter the patient-oriented outcome
by International Knee Documentation Committee after anterior cruciate ligament reconstruction. Additionally, articular cartilage
abnormality on magnetic resonance imaging did not influence the International Knee Documentation Committee score.
Keywords:
ACL
bone bruise
MRI
long-term
prospective |
---|---|
ISSN: | 0363-5465 1552-3365 |
DOI: | 10.1177/0363546508315468 |