The Hip-Spine Relationship in THA — A Moving Cup Target ⏱ Chapters 0:00 Intro 0:48 EXPLAINER 1:24 EXPLAINER 1:51 TWO AXES 2:22 EXPLAINER 2:55 FUNCTIONAL IMAGING 3:27 EXPLAINER 3:57 STIFF SPINE 4:28 EXPLAINER 5:25 IMPINGEMENT PATHWAY 5:51 EXPLAINER 6:31 EXPLAINER 7:03 HIP OR SPINE FIRST? 7:36 EXPLAINER 8:30 PREVENTION SEQUENCE Measure standing and seated pelvic behaviour, identify stiffness and imbalance, and plan component orientation for the positions the patient actually uses In this OrthoVellum master lecture Full clinical topic and references: https://orthovellum.com/topics/hip-spine-relationship-tha Image credits • Nevit Dilmen, annotated by Mikael Häggström — CC BY-SA 3.0 — https://commons.wikimedia.org/wiki/File:Lateral_X-ray_of_lumbar_spine_spondylosis.jpg • Mikael Häggström — CC0 — https://commons.wikimedia.org/wiki/File:Acetabular_inclination_of_hip_prosthesis.jpg • Silverjonny — Public domain — https://commons.wikimedia.org/wiki/File:Wiki_post-op.jpg • Frontiers in Bioengineering 2023 (PMC10665526) — CC BY — https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10665526/ • J Clin Med (MDPI) 2023 (PMC10219306) — CC BY — https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10219306/ • Malaysian orthopaedic journal — cc by — https://europepmc.org/article/PMC/PMC13133578 • Advances in orthopedics — cc by — https://europepmc.org/article/PMC/PMC6230414 • Yon et al., Medicina (2025), CC BY 4.0 — CC BY 4.0 — https://europepmc.org/article/PMC/PMC11766848#medicina-61-00112-g004 • Al-Humairi et al., Cureus (2025), CC BY 4.0 — CC BY 4.0 — https://europepmc.org/article/PMC/PMC12318351#cureus-0017-00000087263-i02 • Kim et al., Medicina (2024), CC BY 4.0 — CC BY 4.0 — https://europepmc.org/article/PMC/PMC11123322#medicina-60-00680-g003 • Rehman et al., Cureus (2025), CC BY 4.0 — CC BY 4.0 — https://europepmc.org/article/PMC/PMC12521857#cureus-0017-00000092335-i01 • Kim et al., Medicina (2024), CC BY 4.0 — CC BY 4.0 — https://europepmc.org/article/PMC/PMC11123322#medicina-60-00680-g001 • Mariani P et al. - Case Rep Orthop (CC-BY 4.0) — CC BY — https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4258342/ • Yeo AK et al. - Patient Saf Surg (CC-BY 4.0) — CC BY — https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4658799/ • Wu CC, J Orthop Surg Res — CC BY — https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9258056/ • OrthoVellum — Original AI illustration Educational only — not individual medical advice. #orthopaedics #orthopedics #medicaleducation #orthovellum Orthovellum.com