TY - JOUR
T1 - Avoiding allograft length mismatch during anterior cruciate ligament reconstruction
T2 - Patient height as an indicator of appropriate graft length
AU - Brown, John A.
AU - Brophy, Robert H.
AU - Franco, John
AU - Marquand, Allyson
AU - Solomon, Thomas C.
AU - Watanabe, Diane
AU - Mandelbaum, Bert R.
PY - 2007/6/1
Y1 - 2007/6/1
N2 - Background: Given the increasing use of allografts in anterior cruciate ligament reconstruction, selection of appropriate-sized grafts may help individual surgeons as well as the efficiency of the overall system for graft distribution. Hypothesis: Recipient patient height can predict the desired length for the tendinous portion of a patellar bone-tendon-bone allograft in anterior cruciate ligament reconstruction. Study Design: Cohort study (Prognosis); Level of evidence, 2. Methods: A series of 414 knees in 392 consecutive patients undergoing magnetic resonance imaging evaluation of knee pain were enrolled in the study. Data collected from magnetic resonance imaging included patella and patellar tendon length and intra-articular length of the anterior cruciate ligament. Patient age, height, weight, and gender were recorded. Linear regression analysis assessed the correlation between patient height and intra-articular length of the anterior cruciate ligament as well as patellar tendon length. The effect of variance in age, weight, and gender on anterior cruciate ligament intra-articular length was also measured. Results: A strong positive correlation was found between intra-articular length of the anterior cruciate ligament and patient height (Pearson r = 0.73; P <.001). Anterior cruciate ligament length (y, in millimeters) as a function of height (x, in inches) can be expressed as y = 1.17x - 41.29. As a function of height (x, in centimeters), anterior cruciate ligament length (y, in millimeters) can be expressed as y = 0.4606x - 41.29. Age, gender, and weight did not significantly influence this relationship. A weak positive association was found between patient height and patellar tendon length. Conclusion: Patient height can predict the desired length of the tendinous portion of a patellar bone-tendon-bone allograft. An addition of 10 mm is made to the predicted anterior cruciate ligament length to allow for aperture tibial and femoral fixation. Patellar bone-tendon-bone allografts can be requested based on recipient patient height as follows: 5 ft, 0 in to 5 ft, 6 in: tendinous length/total length, 45 mm/95 mm; 5 ft, 7 in to 6 ft, 1 in: 50 mm/100 mm; >6 ft, 1 in: 55 mm/105 mm.
AB - Background: Given the increasing use of allografts in anterior cruciate ligament reconstruction, selection of appropriate-sized grafts may help individual surgeons as well as the efficiency of the overall system for graft distribution. Hypothesis: Recipient patient height can predict the desired length for the tendinous portion of a patellar bone-tendon-bone allograft in anterior cruciate ligament reconstruction. Study Design: Cohort study (Prognosis); Level of evidence, 2. Methods: A series of 414 knees in 392 consecutive patients undergoing magnetic resonance imaging evaluation of knee pain were enrolled in the study. Data collected from magnetic resonance imaging included patella and patellar tendon length and intra-articular length of the anterior cruciate ligament. Patient age, height, weight, and gender were recorded. Linear regression analysis assessed the correlation between patient height and intra-articular length of the anterior cruciate ligament as well as patellar tendon length. The effect of variance in age, weight, and gender on anterior cruciate ligament intra-articular length was also measured. Results: A strong positive correlation was found between intra-articular length of the anterior cruciate ligament and patient height (Pearson r = 0.73; P <.001). Anterior cruciate ligament length (y, in millimeters) as a function of height (x, in inches) can be expressed as y = 1.17x - 41.29. As a function of height (x, in centimeters), anterior cruciate ligament length (y, in millimeters) can be expressed as y = 0.4606x - 41.29. Age, gender, and weight did not significantly influence this relationship. A weak positive association was found between patient height and patellar tendon length. Conclusion: Patient height can predict the desired length of the tendinous portion of a patellar bone-tendon-bone allograft. An addition of 10 mm is made to the predicted anterior cruciate ligament length to allow for aperture tibial and femoral fixation. Patellar bone-tendon-bone allografts can be requested based on recipient patient height as follows: 5 ft, 0 in to 5 ft, 6 in: tendinous length/total length, 45 mm/95 mm; 5 ft, 7 in to 6 ft, 1 in: 50 mm/100 mm; >6 ft, 1 in: 55 mm/105 mm.
KW - Allograft
KW - Anterior cruciate ligament (ACL)
KW - Knee
KW - Reconstruction
UR - http://www.scopus.com/inward/record.url?scp=34250746933&partnerID=8YFLogxK
U2 - 10.1177/0363546506298584
DO - 10.1177/0363546506298584
M3 - Article
C2 - 17337725
AN - SCOPUS:34250746933
SN - 0363-5465
VL - 35
SP - 986
EP - 989
JO - American Journal of Sports Medicine
JF - American Journal of Sports Medicine
IS - 6
ER -