Reconstruction of the Medial Patellofemoral Ligament Using Hamstring Tendon Graft With Different Methods: a Biomechanical Study

Wei He; Yu-ming Yang; Ming Liu; Ai-yuan Wang; Yu-jie Liu

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Reconstruction of the Medial Patellofemoral Ligament Using Hamstring Tendon Graft With Different Methods: a Biomechanical Study

Chinese Medical Sciences Journal Vol. 28, Issue 4, Pages: 201-205(2013)

Updated：2024-04-10

- Reconstruction of the Medial Patellofemoral Ligament Using Hamstring Tendon Graft With Different Methods: a Biomechanical Study
- Affiliations：
  
  1. Department of Orthopedics, The 305 Hospital of Chinese People’s Liberation Army,Beijing,China,100017
  2. Department of Orthopedics, The 261 Hospital of Chinese People’s Liberation Army,Beijing,China,100094
  3. ,China
  4. Department of Orthopedics, General Hospital of Chinese People’s Liberation Army,Beijing,China,100853
- Author bio：
- Funds：
- DOI：
  CLC：
- Published Online：31 December 2013，
  
  Published：2013
- Accepted：
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Wei He, Yu-ming Yang, Ming Liu, et al. Reconstruction of the Medial Patellofemoral Ligament Using Hamstring Tendon Graft With Different Methods: a Biomechanical Study[J]. Chinese medical sciences journal, 2013, 28(4): 201-205.
DOI：

Wei He, Yu-ming Yang, Ming Liu, et al. Reconstruction of the Medial Patellofemoral Ligament Using Hamstring Tendon Graft With Different Methods: a Biomechanical Study[J]. Chinese medical sciences journal, 2013, 28(4): 201-205. DOI：

摘要

Objective To measure the tensile strength of the normal medial patellofemoral ligament (MPFL)

and evaluate the biomechanics of different fixation methods of the hamstring tendon graft on the patella. Methods Eight fresh cadaver knees were prepared by isolating the patella

leaving only the MPFL as its attachment to the medial condyle of femur. The MPFL was reconstructed by three different methods: four-suture fixation

anchors-single suture fixation

and anchors-double suture fixation. The tensile strength and the elongation of the normal MPFL and the tendon grafts were measured. Results The tensile strength of the four-suture fixation group (234.86±49.02 N) was stronger than that of the normal MPFL (146.91±25.30 N

P=0.0014) and the anchors-single suture group (159.17±49.07 N

P=0.0077)

while weaker than that of the anchors-double suture group (314.74±78.46 N

P=0.0052) Conclusions With regard to the tensile strength

the four-suture fixation method is reliable for clinical use. Compared with the anchor-suture method

the four-suture fixation method which has no specific implants is more economical

convenient and efficient.

Abstract

Objective To measure the tensile strength of the normal medial patellofemoral ligament (MPFL)

and evaluate the biomechanics of different fixation methods of the hamstring tendon graft on the patella. Methods Eight fresh cadaver knees were prepared by isolating the patella

leaving only the MPFL as its attachment to the medial condyle of femur. The MPFL was reconstructed by three different methods: four-suture fixation

anchors-single suture fixation

P=0.0014) and the anchors-single suture group (159.17±49.07 N

P=0.0077)

while weaker than that of the anchors-double suture group (314.74±78.46 N

P=0.0052) Conclusions With regard to the tensile strength

the four-suture fixation method is reliable for clinical use. Compared with the anchor-suture method

the four-suture fixation method which has no specific implants is more economical

convenient and efficient.

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