Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (43): 8079-8082.doi: 10.3969/j.issn.1673-8225.2011.43.025

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Knee function comparison and histological evaluation of the tibial shaft after intramedullary nail fixation

Zhu Long-zhang, Xue Feng, Han Ben-song   

  1. Department of Orthopedics, Central Hospital of Fengxian District, Shanghai  201400, China
  • Received:2011-06-30 Revised:2011-08-16 Online:2011-10-22 Published:2011-10-22
  • Contact: Han Ben-song, Master, Attending physician, Department of Orthopedics, Central Hospital of Fengxian District, Shanghai 201400, China hanbensong@ 126.com Correspondence to: Xue Feng, Doctor, Chief physician, Department of Orthopedics, Central Hospital of Fengxian District, Shanghai 201400, China xuemd@yahoo.com.cn
  • About author:Zhu Long-zhang, Associate chief physician, Department of Orthopedics, Central Hospital of Fengxian District, Shanghai 201400, China lz_zhu@126.com

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Abstract:

BACKGROUND: Biological changes of the knee after intramedullary nail fixation is an important factor influencing knee function.
OBJECTIVE: To analyze and compare the knee function following tibial fractures treated with intramedullary nail fixation by different approaches, and to make histological comparisons and evaluation for patellar tendon and fat pad damage.
METHODS: In a retrospective case study, we evaluated 45 patients with history of closed tibial shaft fracture who had been treated by intramedullary nail fixation. The 45 patients were divided into transpatellar, medial parapatellar and lateral parapatellar groups.
RESULTS AND CONCLUSION: There was no difference in the scores of knee function among the three groups after implantation (P > 0.05). Scar formation degree in the surgical incision, knee dysfunction and pain degree were more significant in the transpatellar group than the medial parapatellar and lateral parapatellar groups. These findings indicate that intramedullary nail fixation via the medial parapatellar and lateral parapatellar approaches leads to a better knee function and a lower incidence rate of patellar tendon and fat pad damage.

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