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To examine the consistency between postoperative CT scan and intraoperative arthroscopic measurement in evaluating femoral tunnel position for anterior cruciate ligament （ACL）reconstruction，both using the apex of the deep cartilage（ADC）as the marker.
The position of the center of femoral tunnel was decided in the complete femoral stub. Then the length from the ADC to the anterior cartilage margin（L1）and to the center of femoral tunnel（l1），as well as the center to the distal cartilage margin（D1）were measured under arthroscopy and on post-operative CT scan（L2，l2 and D2）. Moreover，P1 and P2 were calculated through l1/L1 and l2/L2.
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| Measure | Description | Time Frame |
|---|---|---|
| length from ADC to anterior cartilage margin (L1) under arthroscopy | length from ADC to anterior cartilage margin (L1) under arthroscopy | during operation |
| length from ADC to the center of femoral tunnel (l1) under arthroscopy | length from ADC to the center of femoral tunnel (l1) under arthroscopy | during operation |
| length from the center of femoral tunnel to the distal cartilage margin(D1) under arthroscopy | length from the center of femoral tunnel to the distal cartilage margin(D1) under arthroscopy | during operation |
| length from ADC to anterior cartilage margin (L2) on CT | length from ADC to anterior cartilage margin (L2) on CT | 1 day after operation |
| length from ADC to the center of femoral tunnel (l1) on CT | length from ADC to the center of femoral tunnel (l1) on CT | 1 day after operation |
| length from the center of femoral tunnel to the distal cartilage margin(D1) on CT | length from the center of femoral tunnel to the distal cartilage margin(D1) on CT | 1 day after operation |
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Inclusion Criteria:
Exclusion Criteria:
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Adults aged 18-55 who need and suitable anterior cruciate ligament reconstruction
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Yong Ma, M.D. | Contact | 13581945087 | huidong01@sina.com | |
| Weili Shi, M.D. | Contact | 18046529457 | shiweilixmu@126.com |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ma Yong | Recruiting | Beijing | Beijing Municipality | 100000 | China |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 23740328 | Background | Hofbauer M, Muller B, Murawski CD, van Eck CF, Fu FH. The concept of individualized anatomic anterior cruciate ligament (ACL) reconstruction. Knee Surg Sports Traumatol Arthrosc. 2014 May;22(5):979-86. doi: 10.1007/s00167-013-2562-4. Epub 2013 Jun 6. | |
| 25274095 | Background | Inderhaug E, Larsen A, Strand T, Waaler PA, Solheim E. The effect of feedback from post-operative 3D CT on placement of femoral tunnels in single-bundle anatomic ACL reconstruction. Knee Surg Sports Traumatol Arthrosc. 2016 Jan;24(1):154-60. doi: 10.1007/s00167-014-3355-0. Epub 2014 Oct 2. |
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Publication of academic papers
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| ID | Term |
|---|---|
| D000070598 | Anterior Cruciate Ligament Injuries |
| ID | Term |
|---|---|
| D007718 | Knee Injuries |
| D007869 | Leg Injuries |
| D014947 | Wounds and Injuries |
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| 25980920 | Background | Hart A, Han Y, Martineau PA. The Apex of the Deep Cartilage: A Landmark and New Technique to Help Identify Femoral Tunnel Placement in Anterior Cruciate Ligament Reconstruction. Arthroscopy. 2015 Sep;31(9):1777-83. doi: 10.1016/j.arthro.2015.03.026. Epub 2015 May 15. |
| 35962841 | Derived | Shi W, Zhang J, Meng Q, Chen N, Shen Q, Li S, Cao Z, Ao Y, Ma Y. The apex of the deep cartilage is a stable landmark to evaluate the femoral tunnel position in ACL reconstruction. Knee Surg Sports Traumatol Arthrosc. 2023 Jan;31(1):256-263. doi: 10.1007/s00167-022-07090-4. Epub 2022 Aug 13. |