scholarly journals Modified algorithm for managing postoperative osteomyelitis following fracture fixation with Cierny-Mader type

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Yanbin Tan ◽  
Hang Li ◽  
Zhijun Pan ◽  
Qiang Zheng
2020 ◽  
Author(s):  
Yanbin Tan ◽  
Hang Li ◽  
Zhijun Pan ◽  
Qiang Zheng

Abstract Background: No standardized protocol has been suggested in the treatment of postoperative osteomyelitis following fracture fixation. Our team evaluates the clinical efficacy of the modified algorithm for managing postoperative osteomyelitis following fracture fixation with Cierny-Mader type. Methods: 95wounds were reviewed from March 2009 to February 2016 in our hospital. 61 wounds were treated by the modified algorithm as following: Stable hardware + bone not healed Cierny–Mader 1 type = remove hardware, temporary stabilize; Stable hardware + bone not healed Cierny–Mader 2 type = retain hardware ; Stable hardware + bone not healed Cierny–Mader for type 3 and type 4 = remove hardware, temporary stabilize/ Ilizarov technique; Unstable hardware + bone not healed = remove hardware, temporary stabilize/ Ilizarov technique; Stable hardware + bone healed = remove hardware. 34 wounds were treated by the conventional algorithm. Autodermoplasty, flap transfer, myocutaneous flap and other methods including antibiotic irrigation and drug delivery system were used in wound repair.Results: The patients treated with modified algorithm had a significantly reduced recurrence (P<0.01) , and increased results of negative bacterial cultures (P<0.01), but however observed a decrease in the number of retained hardware cases (P<0.05) . For those treated with tissue reconstruction, there was no significantly (P>0.05) comparing with the conventional group. Conclusions: The modified algorithm for the postoperative osteomyelitis following fracture fixation according to the stability of the hardware and Cierny-Mader type represent a good clinical efficacy in the management of postoperative osteomyelitis. This procedure is simple and shows promising results, more clinical evidence is needed to confirm the existing findings and optimize the treatment of postoperative osteomyelitis following fracture fixation.


2020 ◽  
Author(s):  
Yanbin Tan ◽  
Hang Li ◽  
Zhijun Pan ◽  
Qiang Zheng

Abstract Background: No standardized protocol has been suggested in the treatment of postoperative osteomyelitis. Our team evaluates the clinical efficacy of the modified tactics of implant associated postoperative osteomyelitis patients according to Cierny-Mader type. Methods: 95wounds were reviewed from March 2009 to February 2016 in our hospital. 61 wounds were treated by the modified algorithm as following: Stable hardware + bone not healed Cierny–Mader 1 type = remove hardware, temporary stabilize; Stable hardware + bone not healed Cierny–Mader 2 type = retain hardware ; Stable hardware + bone not healed Cierny–Mader for type 3 and type 4 = remove hardware, temporary stabilize/ Ilizarov technique; Unstable hardware + bone not healed = remove hardware, temporary stabilize/ Ilizarov technique; Stable hardware + bone healed = remove hardware. 34 wounds were treated by the conventional algorithm. Autodermoplasty, flap transfer, myocutaneous flap and other methods including antibiotic irrigation and drug delivery system were used in wound repair. Results: The patients treated with modified algorithm had a significantly reduced recurrence (P<0.01) , and increased results of negative bacterial cultures (P<0.01), but however observed a decrease in the number of retained hardware cases (P<0.05) . For those treated with tissue reconstruction, there was no significantly (P>0.05) comparing with the conventional group. Conclusions: The modified technique for the implant associated postoperative osteomyelitis according to the stability of the hardware and Cierny-Mader type represent a good clinical efficacy in the management of postoperative osteomyelitis. This procedure is simple and shows promising results, more clinical evidence is needed to confirm the existing findings and optimize the treatment of postoperative osteomyelitis. Key Words: Osteomyelitis, Postoperation, Implant


2019 ◽  
Vol 51 (04) ◽  
pp. 745-750
Author(s):  
A.A BHATTI ◽  
M.S CHANDIO ◽  
R.A MEMON ◽  
M.M SHAIKH

2008 ◽  
Vol 21 (02) ◽  
pp. 140-146
Author(s):  
M. R. Edwards ◽  
S. P. James ◽  
W. S. Dernell ◽  
R. J. Scott ◽  
A. M. Bachand ◽  
...  

SummaryThe biomechanical characteristics of 1.2 mm diameter allogeneic cortical bone pins harvested from the canine tibia were evaluated and compared to 1.1 mm diameter stainless steel pins and 1.3 mm diameter polydioxanone (PDS) pins using impact testing and four-point bending. The biomechanical performance of allogeneic cortical bone pins using impact testing was uniform with no significant differences between sites, side, and gender. In four-point bending, cortical bone pins harvested from the left tibia (204.8 ± 77.4 N/mm) were significantly stiffer than the right tibia (123.7 ± 54.4 N/mm, P=0.0001). The site of bone pin harvest also had a significant effect on stiffness, but this was dependent on interactions with gender and side. Site C in male dogs had the highest mean stiffness in the left tibia (224.4 ± 40.4 N/mm), but lowest stiffness in the right tibia (84.9 ± 24.2 N/mm). Site A in female dogs had the highest mean stiffness in the left tibia (344.9 ± 117.4 N/mm), but lowest stiffness in the right tibia (60.8 ± 3.7 N/mm). The raw and adjusted bending properties of 1.2 mm cortical bone pins were significantly better than 1.3 mm PDS pins, but significantly worse than 1.1 mm stainless steel pins (P<0.0001). In conclusion, cortical bone pins may be suitable as an implant for fracture fixation based on initial biomechanical comparison to stainless steel and PDS pins used in clinical practice.


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