Can chondroplasty or an unloader brace helpChondroplasty trims and smooths damaged knee cartilage to ease catching and irritation, but it does not regrow cartilage; outcomes are best in isolated grade 2 to 3 lesions, not grade 4 disease. An unloader brace can reduce one-compartment load and pain when varus or valgus malalignment is driving symptoms, but…Chondroplasty trims and smooths damaged knee cartilage to ease catching and irritation, but it does not regrow cartilage; outcomes are best in isolated grade 2 to 3 lesions, not grade 4 disease. An unloader brace can reduce one-compartment load and pain when varus or valgus malalignment is driving symptoms, but it cannot correct alignment.