An intervertebral spacer comprising: a superior surface configured to engage a superior vertebral body; an inferior surface configured to engage an inferior vertebral body; and a peripheral wall extending from the superior surface to the inferior surface, the peripheral wall comprising: a distal end ; and a proximal end comprising: a cam surface that is rotatable against a complementary cam lobe surface of an inserter tool such that a first force causes the intervertebral spacer to pivot, relative to the inserter tool, about a pivot point associated with the cam surface; and an aperture , wherein: the cam surface comprises a concave surface having a first radius of curvature , the concave surface configured to receive the cam lobe comprising a complementarily shaped convex surface having a second radius of curvature that is substantially equal to the first radius of curvature; and the aperture includes a first threading formed within the aperture to facilitate coupling of the intervertebral spacer to the inserter shaft of the inserter tool. a superior surface configured to engage a superior vertebral body; an inferior surface configured to engage an inferior vertebral body; and a peripheral wall extending from the superior surface to the inferior surface, the peripheral wall comprising: a distal end ; and a proximal end comprising: a cam surface that is rotatable against a complementary cam lobe surface of an inserter tool such that a first force causes the intervertebral spacer to pivot, relative to the inserter tool, about a pivot point associated with the cam surface; and an aperture , wherein: the cam surface comprises a concave surface having a first radius of curvature , the concave surface configured to receive the cam lobe comprising a complementarily shaped convex surface having a second radius of curvature that is substantially equal to the first radius of curvature; and the aperture includes a first threading formed within the aperture to facilitate coupling of the intervertebral spacer to the inserter shaft of the inserter tool. a distal end ; and a proximal end comprising: a cam surface that is rotatable against a complementary cam lobe surface of an inserter tool such that a first force causes the intervertebral spacer to pivot, relative to the inserter tool, about a pivot point associated with the cam surface; and an aperture , wherein: the cam surface comprises a concave surface having a first radius of curvature , the concave surface configured to receive the cam lobe comprising a complementarily shaped convex surface having a second radius of curvature that is substantially equal to the first radius of curvature; and the aperture includes a first threading formed within the aperture to facilitate coupling of the intervertebral spacer to the inserter shaft of the inserter tool. the cam surface comprises a concave surface having a first radius of curvature , the concave surface configured to receive the cam lobe comprising a complementarily shaped convex surface having a second radius of curvature that is substantially equal to the first radius of curvature; and the aperture includes a first threading formed within the aperture to facilitate coupling of the intervertebral spacer to the inserter shaft of the inserter tool. <EOS>