Novel Tenascin-C Haplotype Modifies the Risk for a Failure to Heal After Rotator Cuff Repair.

Background: Several single-nucleotide polymorphisms (SNPs) in the TNC gene have recently been found to be associated with degenerative rotator cuff tears.

Hypothesis: Exonic SNPs in the TNC gene are related to the risk for a failure to heal after rotator cuff repair.

Study Design: Case-control study; Level of evidence, 3.