Infections and patellar XXXX after anterior cruciate ligament reconstruction: a comparison of ipsilateral and contralateral patellar tendon autografts.

@entity1 @entity281 @entity397
BACKGROUND: No studies document the incidence or results of @entity281 and patellar @entity397 after anterior cruciate ligament reconstruction with a contralateral patellar tendon autograft. PURPOSE: To determine the results of @entity1 who have @entity281 and patellar @entity397 after anterior cruciate ligament reconstruction with a patellar tendon autograft and compare the results between ipsilateral and contralateral grafts. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: The authors determined the incidence of @entity281 requiring surgical intervention and complete patellar @entity397 after surgery. Data were analyzed in 2 groups based on the graft source: ipsilateral (n = 2553) or contralateral (n = 2811). Data reviewed included range of motion, quadriceps strength, and subjective evaluations. RESULTS: Infections occurred in 9 ipsilateral @entity1 (0.35%) and 4 contralateral @entity1 (0.14%) (P = .12). At final follow-up, less than normal knee extension was found in 4 ipsilateral @entity1 and 1 contralateral @entity1 ; less than normal flexion was found in 4 ipsilateral @entity1 and 2 contralateral @entity1 . @entity397 occurred in 6 ipsilateral @entity1 (0.24%) and 7 contralateral @entity1 (0.25%) (P = .92). At 1 month after patellar tendon repair, mean motion (degree of hyperextension-degree short of 0   extension-degree of flexion) in the contralateral group was 5-0-137 in the reconstructed knee and 5-0-118 in the graft-donor knee, which was greater than 5-0-98 found in the ipsilateral group for the reconstructed knee (P < .05). The mean Noyes subjective score at a mean of 4 years postoperatively for the tendon-ruptured knee was 87 points in the ipsilateral group and 93 points in the contralateral group (P = .32), which is comparable with the published normative data for the Noyes score reporting a mean score of 93.6    8.3 points. CONCLUSION: There were no significant differences in the incidence of @entity281 or @entity397 between the ipsilateral and contralateral groups. @entity1 with complications after anterior cruciate ligament reconstruction with a patellar tendon autograft may have less difficulty obtaining full knee motion when the graft is harvested from the contralateral knee.
