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Korean journal of radiology
2015 Nov-Dec;16 (6): 1313-8.

Bone Tunnel Diameter Measured with CT after Anterior Cruciate Ligament Reconstruction Using Double-Bundle Auto-Hamstring Tendons: Clinical Implications.

Soo Jeong Yoon, Young Cheol Yoon, So Young Bae, Joon Ho Wang
Author Information
  1. Soo Jeong Yoon: Department of Radiology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul 05355, Korea. ; Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.
  2. Young Cheol Yoon: Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.
  3. So Young Bae: Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.
  4. Joon Ho Wang: Department of Orthopedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea.
PMID: 26576121 DOI: 10.3348/kjr.2015.16.6.1313

Abstract

OBJECTIVE: To evaluate the correlation between bone tunnel diameter after anterior cruciate ligament (ACL) reconstruction measured by computed tomography (CT) using multiplanar reconstruction (MPR) and stability or clinical scores.
MATERIALS AND METHODS: Forty-seven patients (41 men and 6 women, mean age: 34 years) who had undergone ACL reconstruction with the double bundle technique using auto-hamstring graft and had subsequently received CT scans immediately after the surgery (T1: range, 1-4 days, mean, 2.5 days) and at a later time (T2: range, 297-644 days, mean, 410.4 days) were enrolled in this study. The diameter of each tunnel (two femoral and two tibial) at both T1 and T2 were independently measured using MPR technique by two radiologists. Stability and clinical scores were evaluated with a KT-2000 arthrometer, International Knee Documentation Committee objective scores, and the Lysholm score. Statistical analysis of the correlation between the diameter at T2 or the interval diameter change ratio ([T2 - T1] / T1) and clinical scores or stability was investigated.
RESULTS: The tibial bone tunnels for the anteromedial bundles were significantly widened at T2 compared with T1 (observer 1, 0.578 mm to 0.698 mm, p value of < 0.001; observer 2, 0.581 mm to 0.707 mm, p value of < 0.001). There was no significant correlation between the diameter at T2 and stability or clinical scores and between the interval change ratio ([T2 - T1] / T1) and stability or clinical scores (corrected p values for all were 1.0). Intraobserver agreement for measurements was excellent (> 0.8) for both observers. Interobserver agreement for measurement was excellent (> 0.8) except for the most distal portion of the femoral bone tunnel for anterior medial bundle in immediate postoperative CT, which showed moderate agreement (concordance correlation coefficient = 0.6311).
CONCLUSION: Neither the diameter nor its change ratio during interval follow-up is correlated with stability or clinical scores.

Keywords

Anterior cruciate ligament Knee Multidetector computed tomography

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MeSH Term

Adolescent
Adult
Anterior Cruciate Ligament
Anterior Cruciate Ligament Reconstruction
Female
Follow-Up Studies
Humans
Male
Middle Aged
Retrospective Studies
Tendons
Tibia
Tomography, X-Ray Computed
Young Adult
Journal Article

Word Cloud

Created with Highcharts 10.0.00scoresdiameterclinicalstabilitycorrelationCTdaysT1T2mmbonetunnelreconstructionusingmeantwointervalchangeratiopagreementanteriorcruciateligamentACLmeasuredcomputedtomographyMPRbundletechniquerange2femoraltibialKnee[T2-T1]/observer1value<001excellent>8AnteriorOBJECTIVE:evaluatemultiplanarMATERIALSANDMETHODS:Forty-sevenpatients41men6womenage:34yearsundergonedoubleauto-hamstringgraftsubsequentlyreceivedscansimmediatelysurgeryT1:1-45latertimeT2:297-6444104enrolledstudyindependentlyradiologistsStabilityevaluatedKT-2000arthrometerInternationalDocumentationCommitteeobjectiveLysholmscoreStatisticalanalysisinvestigatedRESULTS:tunnelsanteromedialbundlessignificantlywidenedcompared578698581707significantcorrectedvaluesIntraobservermeasurementsobserversInterobservermeasurementexceptdistalportionmedialimmediatepostoperativeshowedmoderateconcordancecoefficient=6311CONCLUSION:Neitherfollow-upcorrelatedBoneTunnelDiameterMeasuredCruciateLigamentReconstructionUsingDouble-BundleAuto-HamstringTendons:ClinicalImplicationsMultidetector

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