All topics
- What it is
- Who it helps
- Timing
- The procedure
- What a hemiarthroplasty is
- Hemi vs total hip
- Recovery after hip fracture
- Patient journey
- Recovery supplies
- Finding a surgeon
- Insurance and costs
- Questions to ask
- Implant designs
- Side-by-side
- Robotics and navigation
- US manufacturers
- What the evidence says
- Value analysis
- Resources
- Glossary
- References
For hospitals
Value analysis considerations
Implant price is an important part of hip replacement cost, but post-acute care, length of stay, complications and revisions drive much of the rest of the episode.
Evidence relevant to value
- Implant cost under bundles. In one health system's bundled payment program, implant costs fell an average of $1,921 (29%) per case and were the largest source of hospital savings; total episode spending fell 20.8%.34
- Medicare CJR. In the first year of the randomized CJR evaluation, discharge to institutional post-acute care fell 2.9 percentage points; total episode spending was not significantly different.32 Over two years, Part A spending fell $582 per episode (2.5%), driven by post-acute care, with no change in readmissions or complications.33
- TEAM. CMS's mandatory Transforming Episode Accountability Model includes lower extremity joint replacement and surgical hip and femur fracture treatment episodes in selected hospitals.51
- Outpatient pathways. In selected patients, outpatient arthroplasty showed similar complications and readmissions with an average cost reduction of $6,797 (hip and knee pooled).31
- Complication costs. Hip PJI hospital costs are projected at $753 million a year in the US by 2030.10
- Technology. Robotic systems reduce cup outliers; durable outcome and cost evidence is limited and partly industry-authored.21,23
Questions for the committee
- What registry survivorship data exist for each stem and cup, and for this exact combination?
- For dual mobility: which patient groups will it be used in, and how will that be tracked?
- For hip fracture: are cemented stems available on every shift, and is the team trained in cementing?
- For robotics or navigation: what is the total cost per case including disposables, imaging and OR time, and what outcome will we measure?
- Does the precautions protocol match current evidence, and what equipment is issued by default?17,18
Sources for this page
- Premkumar A, et al. Projected economic burden of periprosthetic joint infection of the hip and knee in the United States. J Arthroplasty. 2021;36(5):1484-1489.e3. doi:10.1016/j.arth.2020.12.005
- Smith TO, et al. Assistive devices, hip precautions, environmental modifications and training to prevent dislocation and improve function after hip arthroplasty. Cochrane Database Syst Rev. 2016;7(7):CD010815. doi:10.1002/14651858.CD010815.pub2
- Korfitsen CB, et al. Hip precautions after posterior-approach total hip arthroplasty among patients with primary hip osteoarthritis do not influence early recovery: a systematic review and meta-analysis of randomized and non-randomized studies with 8,835 patients. Acta Orthop. 2023;94:141-151. doi:10.2340/17453674.2023.11958
- Arun Kumar G, et al. Robotic-assisted versus conventional manual total hip arthroplasty: a systematic review and meta-analysis of component position accuracy, Lewinnek zone outliers, and early dislocation rates. J Robot Surg. 2026;20(1). doi:10.1007/s11701-026-03678-x
- Sarrel K, et al. Understanding economic analysis and cost-effectiveness of CT scan-guided, 3-dimensional, robotic-arm assisted lower extremity arthroplasty: a systematic review. J Comp Eff Res. 2024;13(4):e230040. Industry co-authors. doi:10.57264/cer-2023-0040
- Bemelmans YFL, et al. Safety and efficacy of outpatient hip and knee arthroplasty: a systematic review with meta-analysis. Arch Orthop Trauma Surg. 2022;142(8):1775-1791. doi:10.1007/s00402-021-03811-5
- Finkelstein A, et al. Mandatory Medicare bundled payment program for lower extremity joint replacement and discharge to institutional postacute care: interim analysis of the first year of a 5-year randomized trial. JAMA. 2018;320(9):892-900. doi:10.1001/jama.2018.12346
- Haas DA, et al. Evaluation of economic and clinical outcomes under Centers for Medicare & Medicaid Services mandatory bundled payments for joint replacements. JAMA Intern Med. 2019;179(7):924-931. doi:10.1001/jamainternmed.2019.0480
- Navathe AS, et al. Cost of joint replacement using bundled payment models. JAMA Intern Med. 2017;177(2):214-222. doi:10.1001/jamainternmed.2016.8263
- Centers for Medicare & Medicaid Services. Transforming Episode Accountability Model (TEAM). cms.gov/priorities/innovation/innovation-models/team-model