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Is gender influencing the biomechanical results after autologous chondrocyte implantation?
MedLine Citation:
PMID:  23188497     Owner:  NLM     Status:  Publisher    
PURPOSE: The influence of gender on the biomechanical outcome after autologous chondrocyte implantation (ACI) including isokinetic muscle strength measurements has not been investigated. The present prospective study was performed to evaluate gender-specific differences in the biomechanical function 48 months after ACI. METHODS: Fifty-two patients (mean age 35.6 ± 8.5 years) that met our inclusion criteria, underwent ACI with Bioseed C(®) and were evaluated with the KOOS score preoperatively, 6, 12 and 48 months after surgery. At final follow-up, 44 out of the 52 patients underwent biomechanical evaluation with isokinetic strength measurements of both knees. All data were evaluated separately for men and women and compared for each time interval using the Mann-Whitney U test. RESULTS: Clinical scores improved significantly over the whole study period (p < 0.05). Male patients demonstrated significantly better scores during the follow-up in the KOOS score (p < 0.05). Isokinetic strength measurements after 48 months revealed a significant strength deficit of the treated knee in all test modes compared to the healthy extremity (p < 0.05). Furthermore, male patients achieved significantly higher strength values compared to female patients (p < 0.05). CONCLUSIONS: ACI is a viable treatment option for full-thickness chondral defects in the knee of both genders. Isokinetic muscle strength measures are significantly worse in women (p < 0.05), but physiological and may play a role for the explanation of gender-specific results after ACI. LEVEL OF EVIDENCE: II.
Peter C Kreuz; Sebastian Müller; Christoph Erggelet; Arvind von Keudell; Thomas Tischer; Christian Kaps; Philipp Niemeyer; Anja Hirschmüller
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-28
Journal Detail:
Title:  Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA     Volume:  -     ISSN:  1433-7347     ISO Abbreviation:  Knee Surg Sports Traumatol Arthrosc     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9314730     Medline TA:  Knee Surg Sports Traumatol Arthrosc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Orthopaedic Surgery, University Medical Center Rostock, Doberanerstr. 142, 18057, Rostock, Germany,
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