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Journal of Bone and Joint Surgery - British Volume, Vol 85-B, Issue SUPP_I, 20.  
Copyright © 2003 by British Editorial Society of Bone and Joint Surgery
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British Orthopaedic Association/Japanese Orthopaedic Association Combined Congress

London – 3–6 October, 2000

Presidents – Mr Hugh Phillips (BOA) and Professor Takahide Kurokawa (JOA)

CLINICAL STUDY OF ANTERIOR KNEE PAIN ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION

H. Takagi; Y. Mori; A. Fujimoto; H. Kanai; H. Yamashita; and Y. Kawakami

(Yokohama), Department of Orthopaedic Surgery, Showa University, Fujigaoka Hospital, 1-30 Fujigaoka, Aoba-ku, Yokohama 227-8501, Japan

Our purpose was to evaluate the incidence of anterior knee pain after ACL reconstruction and the associated affecting factors.

The study assessed 50 ACL reconstructed knees: 29 males and 21 females. The age at surgery was from 14 to 39 years old, with 23.7 years old on the average. The ACL injury was unilateral in all cases, and the normal side was defined as the control. We treated chronic ACL-deficient knees by reconstruction of the ligament through a limited arthrotomy using one-third of the patellar tendon (BTB) with the Kennedy LAD as a graft. Anterior knee pain was classified into 4 group: absent, trace-mild, moderate, and severe. We evaluated the height of the patella, knee extension strength, anterior laxity, leg rotation, Lysholm score, and loss of extension. Anterior laxity and leg rotation were measured by a three-dimensional analyzer.

Ten of the fifty knees (20%) had anterior knee pain. Knee extension strength (reconstructed side/control side) was 71.1% in the cases with anterior knee pain and 84.2% in the cases without anterior knee pain. A significant difference was found between these values. Regarding leg rotation, 4 knees showed normal leg rotation (physiological screw home movement) in the cases with anterior knee pain, compared to 31 knees in the cases without anterior knee pain. There was a significant difference in the incidence of anterior knee pain between the cases with normal leg rotation and the cases without. Other factors failed to show any significant correlation. In this study, knee extension strength and leg rotation had a correlation with anterior knee pain.

The abstracts were prepared by Mr Simon Donell. Correspondence should be addressed to him at the Department of Orthopaedics, Norfolk & Norwich Hospital, Level 4, Centre Block, Colney Lane, Norwich NR4 7UY, United Kingdom.






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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General