title: Assessment of Lumbar Spine Instability Using C-Arm Fluoroscopy.
abstract: A 47-year-old woman was referred to physical therapy with a diagnosis of lumbar radiculopathy. Weight-bearing flexion/extension radiographs showed no change in a 13-mm (at L5-S1) spondylolisthesis measured with a neutral posture. Physical therapy with a focus on flexion-biased stabilization exercises was initiated. After failing to improve after 6 weeks, her referring physician ordered magnetic resonance imaging, which revealed a 6-mm spondylolisthesis in a supine position. Additionally, the physical therapist performed an anterior stability test of L5 on S1 under C-arm fluoroscopy, which demonstrated a palpable shift of S1 posteriorly that was measured on imaging as a change from a 13-mm to a 17-mm spondylolisthesis. J Orthop Sports Phys Ther 2016;46(9):810. doi:10.2519/jospt.2016.0415.
authors: Bill
authors: B
authors: Temes
authors: Steve
authors: S
authors: Karas
authors: James
authors: J
authors: Manwill
mesh_terms: D005081:Exercise Therapy / Q000379:methods; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D007593:Joint Instability / Q000000981:diagnostic imaging* / Q000601:surgery*; D017116:Low Back Pain; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging* / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D011859:Radiography; D013168:Spondylolisthesis / Q000000981:diagnostic imaging* / Q000601:surgery*
keywords: fluoroscopy; low back; magnetic resonance imaging; radiography