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Surgical timing of anterior cruciate ligament reconstruction to prevent associated meniscal and cartilage lesions.
BACKGROUND: The purpose of this study was to analyze the association between the prevalence of meniscal and chondral lesions and the timing of surgery in patients undergoing primary anterior cruciate ligament (ACL) reconstruction to determine a safe time for surgery.
METHODS: This retrospective study involved 226 patients (91 females and 135 males; median age, 29 years) undergoing primary ACL reconstruction. Time interval from ACL injury to surgery (median, 4 months; range, 1-420 months) and concomitant meniscal and cartilage lesions in ACL reconstruction were reviewed. Receiver operating characteristic (ROC) curve analysis was used to determine the precise threshold interval to surgery to prevent meniscal or cartilage lesions. The risk of lesion occurrence after each cutoff period was determined using odds ratio (OR).
RESULTS: The incidences of medial meniscus (MM), lateral meniscus (LM), and cartilage lesions were 43.8%, 32.7%, and 27.4%, respectively. ROC analysis revealed that patients who waited for more than 6, 4, and 5 months for ACL reconstruction had a significantly greater risk of associated MM, LM, and chondral lesions, respectively. Patients who underwent ACL reconstruction ≥7 months after injury had OR of 4.1 (p < 0.001) for the presence of MM lesion as compared with those who underwent reconstruction within 6 months. Similarly, patients who underwent ACL reconstruction ≥5 months after injury had OR of 1.9 (p = 0.023) for the presence of LM lesion as compared with those who underwent reconstruction within 4 months, and patients who underwent ACL reconstruction ≥6 months after injury had OR of 2.9 (p < 0.001) for chondral lesion as compared with those who underwent reconstruction within 6 months.
CONCLUSION: ACL reconstruction should be performed within approximately 6 months after the injury to prevent associated meniscal or chondral lesions.
METHODS: This retrospective study involved 226 patients (91 females and 135 males; median age, 29 years) undergoing primary ACL reconstruction. Time interval from ACL injury to surgery (median, 4 months; range, 1-420 months) and concomitant meniscal and cartilage lesions in ACL reconstruction were reviewed. Receiver operating characteristic (ROC) curve analysis was used to determine the precise threshold interval to surgery to prevent meniscal or cartilage lesions. The risk of lesion occurrence after each cutoff period was determined using odds ratio (OR).
RESULTS: The incidences of medial meniscus (MM), lateral meniscus (LM), and cartilage lesions were 43.8%, 32.7%, and 27.4%, respectively. ROC analysis revealed that patients who waited for more than 6, 4, and 5 months for ACL reconstruction had a significantly greater risk of associated MM, LM, and chondral lesions, respectively. Patients who underwent ACL reconstruction ≥7 months after injury had OR of 4.1 (p < 0.001) for the presence of MM lesion as compared with those who underwent reconstruction within 6 months. Similarly, patients who underwent ACL reconstruction ≥5 months after injury had OR of 1.9 (p = 0.023) for the presence of LM lesion as compared with those who underwent reconstruction within 4 months, and patients who underwent ACL reconstruction ≥6 months after injury had OR of 2.9 (p < 0.001) for chondral lesion as compared with those who underwent reconstruction within 6 months.
CONCLUSION: ACL reconstruction should be performed within approximately 6 months after the injury to prevent associated meniscal or chondral lesions.
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