Apparatus is provided including an implant including an annuloplasty structure (222, 611, 631, 641, 651, 711) having a primary body portion (750), a contraction member (226) extending along a contracting portion of the annuloplasty structure (222, 611, 631, 641, 651, 711), an actuatable adjustment mechanism (40) coupled to the contraction member, and, that when actuated, adjusts a length of the annuloplasty structure (222, 611, 631, 641, 651, 711) by applying tension to the contraction member (226), and a contraction-member-protecting element (633), having a first end coupled to the primary body portion (750) of the annuloplasty structure (222, 611, 631, 641, 651, 711), and a second end coupled to the adjustment mechanism (40). The contraction member (226) extends from the adjustment mechanism (40) via the contraction-member-protecting element (633) to the primary body portion (750) of the annuloplasty structure (222, 611, 631, 641, 651, 711). Other applications are also described.
