Insertion instruments

An insertion instrument for inserting a modular Oblique Lumbar Interbody Fusion (OLIF) device into an intervertebral space, the insertion instrument comprising:

• a hand grippable support defining a longitudinal axis;
• a first elongate arm mounted at a proximal end thereof on the hand grippable support and extending from the hand grippable support along the longitudinal axis, the first elongate arm configured at a distal end thereof to grip a superior plate of the modular OLIF device;
• a second elongate arm mounted at a proximal end thereof on the hand grippable support and extending from the hand grippable support along the longitudinal axis, the second elongate arm configured at a distal end thereof to grip an inferior plate of the modular OLIF device, the distal ends of the first and second elongate arms opposing each other whereby, in use, an inferior surface of the superior plate and a superior surface of the inferior plate face each other, wherein
• the proximal ends of the first and second arms are mounted on the hand grippable support for relative rotation of the first and second arms about the longitudinal axis,
• the proximal end of the first arm has first and second sides facing away from each other and spaced apart in a direction orthogonal to the longitudinal axis and to a direction of separation of the first and second arms,
• the proximal end of the second arm has third and fourth sides facing away from each other and spaced apart in a direction orthogonal to the longitudinal axis and to a direction of separation of the first and second arms, the first and third sides on a first side of the insertion instrument, the second and fourth sides on a second side of the insertion instrument, and
• the proximal ends of the first and second arms are mounted on the hand grippable support to prevent increase in separation between the first and third sides simultaneously with increase in separation between the second and fourth sides.