title: Technical tips: dualplate fixation technique for comminuted proximal humerus fractures.
abstract: The authors report dualplate fixation technique for providing stable fixation in comminuted proximal humerus fractures. This technique has been used for proximal humerus fractures with metaphyseal comminution and provides excellent anatomical reduction and neck shaft angle (NSA). The recently locking plate is clinically more widely used due to its small size, low rigidity, high elasticity, and biomechanical properties such as fixed initial angle and rotational stability. However, in severely comminuted complex type proximal metaphyseal humerus fractures, the use of locking plate alone does not provide stable fixation, leading to complications such as varus collapse, anterior-posterior angulation, screw cutout, nonunion, malunion, and metal failure. Therefore, a more robust and enhanced fixation method, the dual plating technique using the locking compression plate (Proximal Humeral Internal Locking System and Variable Angle Locking Compression Plate) was developed.
authors.affiliation: Department of Orthopaedic Surgery, Jeju National University Hospital, Jeju National University College of Medicine, South Korea.
authors.forename: Sungwook
authors.initials: S
authors.lastname: Choi
authors.affiliation: Department of Orthopaedic Surgery, Jeju National University Hospital, Jeju National University College of Medicine, South Korea.
authors.forename: Hyunseong
authors.initials: H
authors.lastname: Kang
authors.affiliation: Department of Orthopaedic Surgery, Jeju National University Hospital, Jeju National University College of Medicine, South Korea. Electronic address: bhs1984@naver.com.
authors.forename: Hyeongsig
authors.initials: H
authors.lastname: Bang
mesh_terms: D001696:Biomechanical Phenomena; D001860:Bone Plates; D001863:Bone Screws; D005593:Fracture Fixation, Internal / Q000295:instrumentation / Q000379:methods; D017102:Fracture Healing; D018460:Fractures, Comminuted / Q000601:surgery*; D006801:Humans; D017410:Practice Guidelines as Topic; D012784:Shoulder Fractures / Q000601:surgery*; D016896:Treatment Outcome