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Correlation between quantitative pivot shift and generalized joint laxity: a prospective multicenter study of ACL ruptures
- Source :
- Knee Surgery, Sports Traumatology, Arthroscopy
- Publication Year :
- 2018
-
Abstract
- Purpose: To investigate whether an increased magnitude of quantitative rotatory knee laxity is associated with a greater level of generalized joint laxity in ACL-injured and contralateral knees. Methods: A total of 103 patients were enrolled across four international centers to undergo anatomic ACL reconstruction. Rotatory knee laxity was evaluated preoperatively, both in the awake state and under anesthesia, using the standardized pivot shift test. Two devices were used to quantify rotatory knee laxity; an inertial sensor, measuring the joint acceleration, and an image analysis system, measuring the lateral compartment translation of the tibia. The presence of generalized joint laxity was determined using the Beighton Hypermobility Score. The correlation between the level of generalized joint laxity and the magnitude of rotatory knee laxity was calculated for both the involved knee and the non-involved knee. Further, patients were dichotomized into low (0-4) or high (5-9) Beighton Score groups. Alpha was set at < 0.05. Results: Ninety-six patients had complete datasets, 83 and 13 in the low and high Beighton Score groups respectively. In anesthetized patients, there was a significant correlation between the degree of Beighton Score and quantitative pivot shift when analyzing the non-involved knee using the image analysis system (r = 0.235, p < 0.05). When analyzing the same knee, multivariate analysis adjusted for meniscal injury, age and gender revealed an increased odds ratio for patients with increased lateral compartment translation to be part of the high Beighton Score group (OR 1.86, 95% CI 1.10-3.17, p < 0.05). No other correlation was significant. When analyzing the dichotomized subgroups, no significant correlations could be established. Conclusion: The findings in this study suggest that there is a weak correlation between generalized joint laxity and the contralateral healthy knee, indicating increased rotatory knee laxity in these patients. Generalized joint laxity does not appear to correlate with rotatory knee laxity in ACL-injured knees. Level of evidence: Prospective cohort study; level of evidence, 2.
- Subjects :
- Male
Image analysis system
Knee Joint
Anterior cruciate ligament reconstruction
medicine.medical_treatment
Inertial sensor
0302 clinical medicine
Rotatory knee laxity
Orthopedics and Sports Medicine
Prospective Studies
Anterior Cruciate Ligament
Range of Motion, Articular
Child
Prospective cohort study
Orthodontics
Pivot shift test
030222 orthopedics
Pivot-shift test
Beighton Score
Generalized joint hypermobility
Generalized joint laxity
musculoskeletal system
Biomechanical Phenomena
medicine.anatomical_structure
Female
Adult
Joint Instability
musculoskeletal diseases
medicine.medical_specialty
Adolescent
Rotation
Anterior cruciate ligament
Young Adult
03 medical and health sciences
medicine
Humans
Knee
Tibia
Physical Examination
Rupture
business.industry
Anterior Cruciate Ligament Injuries
030229 sport sciences
Orthopedic surgery
Surgery
business
human activities
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Knee Surgery, Sports Traumatology, Arthroscopy
- Accession number :
- edsair.doi.dedup.....12fd1211c38a6c09660f27b4db65319b