A surgical instrumentation for vertebral derotation with a first implant extension, a second implant extension and a transverse coupling (100; 1000; 1000') for connecting the first implant extension to the second implant extension, the first implant extension being configured to be attached to a first pedicle screw, the second implant extension being configured to be attached to a second pedicle screw and the transverse coupling comprising: a first sleeve (310; 3100; 3100') defining a first aperture adapted to axially receive the first implant extension through the first aperture; a second sleeve (410; 4100; 4100') defining a second aperture adapted to axially receive the second implant extension through the second aperture; a central housing (200; 2000; 2000'); a first shaft (320; 3200; 3200') connecting the first sleeve (310; 3100; 3100') to the central housing (200; 2000; 2000'); and a second shaft (420; 4200; 4200') connecting the second sleeve (410; 4100; 4100') to the central housing (200; 2000; 2000'), at least one of the first shaft (320; 3200; 3200') and the second shaft (420; 4200; 4200') being connected to the central housing (200; 2000; 2000') by a movable joint (230, 240) on the central housing (200; 2000; 2000'), wherein the central housing (200; 2000; 2000') comprises a first joint and a second joint; the first shaft (320; 3200; 3200') connects the first sleeve (310; 3100; 3100') to the first joint of the central housing (200; 2000; 2000'); the second shaft (420; 4200; 4200') connects the second sleeve (410; 4100; 4100') to the second joint of the central housing (200; 2000; 2000'); and the first joint comprises a universal ball joint that is pivotable with respect to the central housing (200; 2000; 2000'), characterized in that the universal ball joint comprises a longitudinal passage and a plurality of spring sections extending around the longitudinal passage. a first sleeve (310; 3100; 3100') defining a first aperture adapted to axially receive the first implant extension through the first aperture; a second sleeve (410; 4100; 4100') defining a second aperture adapted to axially receive the second implant extension through the second aperture; a central housing (200; 2000; 2000'); a first shaft (320; 3200; 3200') connecting the first sleeve (310; 3100; 3100') to the central housing (200; 2000; 2000'); and a second shaft (420; 4200; 4200') connecting the second sleeve (410; 4100; 4100') to the central housing (200; 2000; 2000'), at least one of the first shaft (320; 3200; 3200') and the second shaft (420; 4200; 4200') being connected to the central housing (200; 2000; 2000') by a movable joint (230, 240) on the central housing (200; 2000; 2000'), wherein the central housing (200; 2000; 2000') comprises a first joint and a second joint; the first shaft (320; 3200; 3200') connects the first sleeve (310; 3100; 3100') to the first joint of the central housing (200; 2000; 2000'); the second shaft (420; 4200; 4200') connects the second sleeve (410; 4100; 4100') to the second joint of the central housing (200; 2000; 2000'); and the first joint comprises a universal ball joint that is pivotable with respect to the central housing (200; 2000; 2000'), characterized in that the universal ball joint comprises a longitudinal passage and a plurality of spring sections extending around the longitudinal passage.