B19a - Available Options Medex B19a - LSO (post-op back brace) with chair back --- Please Select --- Medex-B19a-S - LSO (post-op back brace) with chair back, Small Medex-B19a-M - LSO (post-op back brace) with chair back, Medium Medex-B19a-L - LSO (post-op back brace) with chair back, Large Medex-B19a-XL - LSO (post-op back brace) with chair back, X-Large
