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The effect of anterior cruciate ligament deficiency and reconstruction on the patellofemoral joint.

Publication ,  Journal Article
Van de Velde, SK; Gill, TJ; DeFrate, LE; Papannagari, R; Li, G
Published in: Am J Sports Med
June 2008

BACKGROUND: Little is known about the effect of anterior cruciate ligament deficiency and reconstruction on the patellofemoral joint. HYPOTHESIS: Anterior cruciate ligament deficiency changes the patellofemoral joint biomechanics. Reconstruction of the ligament does not restore the altered patellofemoral joint function. STUDY DESIGN: Controlled laboratory study. METHODS: Eight patients with an acute anterior cruciate ligament injury in 1 knee and the contralateral side intact were included in the study. Magnetic resonance and dual-orthogonal fluoroscopic imaging techniques were used to compare the patellofemoral joint function during a single-leg lunge between the intact, the anterior cruciate ligament-injured, and the anterior cruciate ligament-reconstructed knee. Data on the patellar tendon apparent elongation and orientation, patellar tracking, and patellofemoral cartilage contact location were collected preoperatively and at 6 months after reconstruction. RESULTS: Anterior cruciate ligament deficiency caused a significant apparent elongation and change in orientation of the patellar tendon. It decreased the flexion and increased the valgus rotation and tilt of the patella. Anterior cruciate ligament injury caused a proximal and lateral shift in patellofemoral cartilage contact location. Anterior cruciate ligament reconstruction reduced the abnormal apparent elongation but not the orientation of the patellar tendon, and it restored the patellar flexion and proximal shift in contact. The abnormal patellar rotation, tilt, and lateral shift in cartilage contact persisted after reconstruction. CONCLUSION: The altered function of the patellar tendon in anterior cruciate ligament deficiency resulted in an altered patellar tracking and patellofemoral cartilage contact. Persistent changes in patellofemoral joint function after anterior cruciate ligament reconstruction imply that reconstruction of the anterior cruciate ligament does not restore the normal function of the patellofemoral joint. CLINICAL RELEVANCE: The abnormal kinematics of the patellofemoral joint might predispose the patellofemoral cartilage to degenerative changes associated with anterior cruciate ligament deficiency, even if the ligament is reconstructed in a way that restores anteroposterior knee laxity.

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Published In

Am J Sports Med

DOI

EISSN

1552-3365

Publication Date

June 2008

Volume

36

Issue

6

Start / End Page

1150 / 1159

Location

United States

Related Subject Headings

  • Rupture
  • Plastic Surgery Procedures
  • Patellar Ligament
  • Patella
  • Orthopedics
  • Male
  • Knee Joint
  • Humans
  • Fluoroscopy
  • Female
 

Citation

APA
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ICMJE
MLA
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Van de Velde, S. K., Gill, T. J., DeFrate, L. E., Papannagari, R., & Li, G. (2008). The effect of anterior cruciate ligament deficiency and reconstruction on the patellofemoral joint. Am J Sports Med, 36(6), 1150–1159. https://doi.org/10.1177/0363546508314404
Van de Velde, Samuel K., Thomas J. Gill, Louis E. DeFrate, Ramprasad Papannagari, and Guoan Li. “The effect of anterior cruciate ligament deficiency and reconstruction on the patellofemoral joint.Am J Sports Med 36, no. 6 (June 2008): 1150–59. https://doi.org/10.1177/0363546508314404.
Van de Velde SK, Gill TJ, DeFrate LE, Papannagari R, Li G. The effect of anterior cruciate ligament deficiency and reconstruction on the patellofemoral joint. Am J Sports Med. 2008 Jun;36(6):1150–9.
Van de Velde, Samuel K., et al. “The effect of anterior cruciate ligament deficiency and reconstruction on the patellofemoral joint.Am J Sports Med, vol. 36, no. 6, June 2008, pp. 1150–59. Pubmed, doi:10.1177/0363546508314404.
Van de Velde SK, Gill TJ, DeFrate LE, Papannagari R, Li G. The effect of anterior cruciate ligament deficiency and reconstruction on the patellofemoral joint. Am J Sports Med. 2008 Jun;36(6):1150–1159.
Journal cover image

Published In

Am J Sports Med

DOI

EISSN

1552-3365

Publication Date

June 2008

Volume

36

Issue

6

Start / End Page

1150 / 1159

Location

United States

Related Subject Headings

  • Rupture
  • Plastic Surgery Procedures
  • Patellar Ligament
  • Patella
  • Orthopedics
  • Male
  • Knee Joint
  • Humans
  • Fluoroscopy
  • Female