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Soft tissue balance in total knee arthroplasty : does stress relaxation occur perioperatively?

Author
Organization
Abstract
The restoration of correct soft tissue tension is key to achieving a successful total knee arthroplasty. However, it remains unclear whether the status achieved immediately after the operation will persist over time. Some surgeons believe soft tissue stress relaxation occurs and therefore the knee loosens somewhat after the procedure. It was the aim of this study to investigate this hypothesis. We analyzed 25 in vivo total knee implantations using contemporary computer navigation technology to assess and quantify perioperative soft tissue relaxation. Mediolateral joint laxity and maximal passive extension were analyzed immediately intraoperatively and 30 minutes later under the same conditions. Stress relaxation occurred in all. cases, leading to increased mediolateral laxity by an average of 1 mm on the medial and lateral sides. Maximal passive extension increased by an average of 3 degrees. This data confirms the hypothesis the knee becomes looser in the early phase after total knee arthroplasty.
Keywords
INSTABILITY, ACCURACY, REPLACEMENT, OSTEOARTHRITIC KNEES, NATURAL-HISTORY, FIXED FLEXION DEFORMITY, SURGERY, TENSION, LAXITY

Citation

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Chicago
Bellemans, Johan, Pieter D’Hooghe, Hilde Vandenneucker, Geert Van Damme, and Jan Victor. 2006. “Soft Tissue Balance in Total Knee Arthroplasty : Does Stress Relaxation Occur Perioperatively?” Clinical Orthopaedics and Related Research 452: 49–52.
APA
Bellemans, J., D’Hooghe, P., Vandenneucker, H., Van Damme, G., & Victor, J. (2006). Soft tissue balance in total knee arthroplasty : does stress relaxation occur perioperatively? CLINICAL ORTHOPAEDICS AND RELATED RESEARCH, 452, 49–52. Presented at the 2006 Meeting of the Knee Society.
Vancouver
1.
Bellemans J, D’Hooghe P, Vandenneucker H, Van Damme G, Victor J. Soft tissue balance in total knee arthroplasty : does stress relaxation occur perioperatively? CLINICAL ORTHOPAEDICS AND RELATED RESEARCH. 2006;452:49–52.
MLA
Bellemans, Johan, Pieter D’Hooghe, Hilde Vandenneucker, et al. “Soft Tissue Balance in Total Knee Arthroplasty : Does Stress Relaxation Occur Perioperatively?” CLINICAL ORTHOPAEDICS AND RELATED RESEARCH 452 (2006): 49–52. Print.
@article{1967710,
  abstract     = {The restoration of correct soft tissue tension is key to achieving a successful total knee arthroplasty. However, it remains unclear whether the status achieved immediately after the operation will persist over time. Some surgeons believe soft tissue stress relaxation occurs and therefore the knee loosens somewhat after the procedure. It was the aim of this study to investigate this hypothesis. We analyzed 25 in vivo total knee implantations using contemporary computer navigation technology to assess and quantify perioperative soft tissue relaxation. Mediolateral joint laxity and maximal passive extension were analyzed immediately intraoperatively and 30 minutes later under the same conditions. Stress relaxation occurred in all. cases, leading to increased mediolateral laxity by an average of 1 mm on the medial and lateral sides. Maximal passive extension increased by an average of 3 degrees. This data confirms the hypothesis the knee becomes looser in the early phase after total knee arthroplasty.},
  author       = {Bellemans, Johan and D'Hooghe, Pieter and Vandenneucker, Hilde and Van Damme, Geert and Victor, Jan},
  issn         = {0009-921X},
  journal      = {CLINICAL ORTHOPAEDICS AND RELATED RESEARCH},
  keyword      = {INSTABILITY,ACCURACY,REPLACEMENT,OSTEOARTHRITIC KNEES,NATURAL-HISTORY,FIXED FLEXION DEFORMITY,SURGERY,TENSION,LAXITY},
  language     = {eng},
  location     = {Chicago, IL, USA},
  pages        = {49--52},
  title        = {Soft tissue balance in total knee arthroplasty : does stress relaxation occur perioperatively?},
  url          = {http://dx.doi.org/10.1097/01.blo.0000238790.29102.95},
  volume       = {452},
  year         = {2006},
}

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