Rotation-related sports players demonstrate rotation-type lumbar spondylolysis fracture angle and decreased hip internal rotation range of motion

Hideaki Nagamoto; Masaya Abe; Yu Konashi; Rei Kimura; Mitsuhiro Takahashi; Akira Oizumi

doi:10.1016/j.jor.2021.11.010

Rotation-related sports players demonstrate rotation-type lumbar spondylolysis fracture angle and decreased hip internal rotation range of motion

J Orthop. 2021 Nov 29:28:101-106. doi: 10.1016/j.jor.2021.11.010. eCollection 2021 Nov-Dec.

Authors

Hideaki Nagamoto^{1

2}, Masaya Abe³, Yu Konashi⁴, Rei Kimura^{1

2}, Mitsuhiro Takahashi², Akira Oizumi²

Affiliations

¹ Department of Orthopaedic Surgery, Tohoku University, Japan.
² Department of Orthopaedic Surgery, Kurihara Centeral Hospital, Japan.
³ Department of Physical Medicine and Rehabilitation, Tohoku University Hospital, Japan.
⁴ Department of Rehabilitation, Kurihara Central Hospital, Japan.

Abstract

Relationship between sports and spondylolysis fracture angle (SFA), and hip internal rotation range of motion (IR ROM) between the sports groups among athletes with spondylolysis were investigated. Sports requiring repeated rotation of the trunk and hips during most aspects of the activity was defined as rotation-related sports (RRS). The SFA was defined as rotation-type or horizontal-type by using the axial view of the CT scan. Percentage of rotation type and SFA of the non-dominant side for RRS group was significantly greater than those of non-RRS group. Hip IR ROM of RRS group was significantly smaller than that of non-RRS group.

Level of evidence: Level IV.

Keywords: Hip internal rotation range of motion; Lumbar spondylolysis; Rotation-related sports; Spondylolysis fracture angle.