TR
EN
Evaluation of intra-articular collagenase, TIMP-1, and TNF-α levels before and after anterior cruciate ligament reconstruction
Abstract
Objectives: We investigated intra-articular levels of collagenase, which presumably promotes bone-tendon healing, and collagenase mediators involved in its production (tumor necrosis factor alpha, TNF-α) and inhibition (TIMP-1 enzyme) in patients following anterior cruciate ligament (ACL) reconstruction.
Methods: The study included 16 patients (15 males, 1 female; mean age 27 years; range 17 to 40 years) who underwent arthrocentesis due to effusion that developed following reconstruction of isolated ACL injuries. Intra-articular levels of collagenase, TNF-α, and TIMP-1 were measured using appropriate activity assay and immunoassay kits in synovial fluid samples obtained intraoperatively and during arthrocentesis. The mean time from ACL injury to surgical repair was 21±10 months (range 1 to 72 months). Arthrocentesis was performed in a mean of 18 hours (range 12 to 36 hours) following ACL repair.
Results: Measurements in synovial fluid samples obtained intra- and postoperatively yielded 1.49±0.06 ng/ml and 1.45±0.05 ng/ml for collagenase, 12±5 ng/ml and 22±9.5 ng/ml for TIMP-1, and 10.4±7.1 pr/ml and 14.11±6.1 pr/ml for TNF-α, respectively. Postoperative changes in the levels of collagenase (p=0.098) and TNF-α (p=0.069) were not significant, whereas increase in the TIMP-1 level was significant (p=0.026).
Conclusion: This study showed elevated levels of TNF-α, collagenase, and TIMP-1 due to the presence of ruptured ACL. Our findings showed how these levels changed in the acute postoperative period.
Methods: The study included 16 patients (15 males, 1 female; mean age 27 years; range 17 to 40 years) who underwent arthrocentesis due to effusion that developed following reconstruction of isolated ACL injuries. Intra-articular levels of collagenase, TNF-α, and TIMP-1 were measured using appropriate activity assay and immunoassay kits in synovial fluid samples obtained intraoperatively and during arthrocentesis. The mean time from ACL injury to surgical repair was 21±10 months (range 1 to 72 months). Arthrocentesis was performed in a mean of 18 hours (range 12 to 36 hours) following ACL repair.
Results: Measurements in synovial fluid samples obtained intra- and postoperatively yielded 1.49±0.06 ng/ml and 1.45±0.05 ng/ml for collagenase, 12±5 ng/ml and 22±9.5 ng/ml for TIMP-1, and 10.4±7.1 pr/ml and 14.11±6.1 pr/ml for TNF-α, respectively. Postoperative changes in the levels of collagenase (p=0.098) and TNF-α (p=0.069) were not significant, whereas increase in the TIMP-1 level was significant (p=0.026).
Conclusion: This study showed elevated levels of TNF-α, collagenase, and TIMP-1 due to the presence of ruptured ACL. Our findings showed how these levels changed in the acute postoperative period.
Keywords
Details
Primary Language
English
Subjects
Health Care Administration
Journal Section
Research Article
Publication Date
August 10, 2009
Submission Date
March 7, 2014
Acceptance Date
-
Published in Issue
Year 2009 Volume: 43 Number: 3
APA
Akesen, B., Demirag, B., & Budak, F. (2009). Evaluation of intra-articular collagenase, TIMP-1, and TNF-α levels before and after anterior cruciate ligament reconstruction. Acta Orthopaedica et Traumatologica Turcica, 43(3), 214-218. https://izlik.org/JA94FX47DL
AMA
1.Akesen B, Demirag B, Budak F. Evaluation of intra-articular collagenase, TIMP-1, and TNF-α levels before and after anterior cruciate ligament reconstruction. Acta Orthopaedica et Traumatologica Turcica. 2009;43(3):214-218. https://izlik.org/JA94FX47DL
Chicago
Akesen, Burak, Burak Demirag, and Ferah Budak. 2009. “Evaluation of Intra-Articular Collagenase, TIMP-1, and TNF-α Levels before and After Anterior Cruciate Ligament Reconstruction”. Acta Orthopaedica et Traumatologica Turcica 43 (3): 214-18. https://izlik.org/JA94FX47DL.
EndNote
Akesen B, Demirag B, Budak F (August 1, 2009) Evaluation of intra-articular collagenase, TIMP-1, and TNF-α levels before and after anterior cruciate ligament reconstruction. Acta Orthopaedica et Traumatologica Turcica 43 3 214–218.
IEEE
[1]B. Akesen, B. Demirag, and F. Budak, “Evaluation of intra-articular collagenase, TIMP-1, and TNF-α levels before and after anterior cruciate ligament reconstruction”, Acta Orthopaedica et Traumatologica Turcica, vol. 43, no. 3, pp. 214–218, Aug. 2009, [Online]. Available: https://izlik.org/JA94FX47DL
ISNAD
Akesen, Burak - Demirag, Burak - Budak, Ferah. “Evaluation of Intra-Articular Collagenase, TIMP-1, and TNF-α Levels before and After Anterior Cruciate Ligament Reconstruction”. Acta Orthopaedica et Traumatologica Turcica 43/3 (August 1, 2009): 214-218. https://izlik.org/JA94FX47DL.
JAMA
1.Akesen B, Demirag B, Budak F. Evaluation of intra-articular collagenase, TIMP-1, and TNF-α levels before and after anterior cruciate ligament reconstruction. Acta Orthopaedica et Traumatologica Turcica. 2009;43:214–218.
MLA
Akesen, Burak, et al. “Evaluation of Intra-Articular Collagenase, TIMP-1, and TNF-α Levels before and After Anterior Cruciate Ligament Reconstruction”. Acta Orthopaedica et Traumatologica Turcica, vol. 43, no. 3, Aug. 2009, pp. 214-8, https://izlik.org/JA94FX47DL.
Vancouver
1.Burak Akesen, Burak Demirag, Ferah Budak. Evaluation of intra-articular collagenase, TIMP-1, and TNF-α levels before and after anterior cruciate ligament reconstruction. Acta Orthopaedica et Traumatologica Turcica [Internet]. 2009 Aug. 1;43(3):214-8. Available from: https://izlik.org/JA94FX47DL