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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXIX | Pages 13 - 13
1 Jul 2012
Johnston AJ Stokes MJ Corry IS Nicholas RM
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Aim

To assess the ten year subjective knee function and activity level following four-strand semitendinosis and gracilis (STG) anterior cruciate ligament reconstruction.

Methods

86 patients underwent anterior cruciate reconstruction by two knee surgeons in the year 1999. 80 patients meet the inclusion criteria of STG reconstruction by a standard operative technique. Patient evaluation was by completion of a Lysholm Knee Score and Tegner Activity Level Scale at a minimum of ten years from reconstructive surgery. This was by initial postal questionnaire and subsequent telephone follow-up.


Orthopaedic Proceedings
Vol. 90-B, Issue SUPP_II | Pages 319 - 320
1 Jul 2008
Wilkinson AJ Nicholas RM
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Purpose of the study: To audit the radiological position of the tunnels following reconstruction of the anterior cruciate ligament (ACL).

Methods: Postoperative radiographs were obtained on patients following ACL reconstruction in a single surgeon series. The positions of the tunnel in the femur and the tibia were measured and recorded. The tunnel positions were compared to the recommended positions as established by literature review. Lateral radiographs displaying greater than 2mm of imperfect projection in relation to the femoral condyles were noted.

Results: 108 radiographs were collected from 105 patients, 60 were right knees and 48 were left. There were 88 men and 17 women.

When measured along Blumensaats line from the anterior condylar surface, the femoral tunnel in the saggital plane should be found at 75% of the total anteroposterior distance, the recorded figure in this audit was 74%. Measured from the anterior edge in the saggital plane, the tibial tunnel should be found at 44% of the total tibial depth, our measurements averaged 40%. The tibial tunnel in the coronal plane should be found at 45% of the total width from the medial edge, our measurements averaged 46%.

57 (53%) of the radiographs demonstrated imperfect lateral projection of greater than 2mm.

Conclusion: The position of the tunnels analyzed in this audit compare favourably with the positions recommended in the available literature. Over 50% of the lateral radiographs displayed imperfect lateral projection greater than 2mm. Imperfect lateral film projection affects the apparent position of the tunnel. Any interpretation of position as it appears on a two-dimensional image must take into account possible errors in the image.