Abstract
Background
Routine total hip arthroplasty (THA) using a short cemented stem as compared with a standard length cemented stem may have benefits in terms of stress distribution, bone preservation, stem subsidence and ease of revision surgery. Two senior arthroplasty surgeons transitioned their routine femoral implant from a standard 150 mm Exeter V40 cemented stem to a short 125 mm Exeter V40 cemented stem for all patients over the course of several years. We analysed revision rates, adjusted survival, and PROMS scores for patients who received a standard stem and a short stem in routine THA.
Methods
All THAs performed by the two surgeons between January 2011 and December 2021 were included. All procedures were performed using either a 150 mm or 125 mm Exeter V40 stem. Demographic data, acetabular implant type, and outcome data including implant survival, reason for revision, and post-operative Oxford Hip Scores were obtained from the New Zealand Joint Registry (NZJR), and detailed survival analyses were performed. Primary outcome was revision for any reason. Reason for revision, including femoral or acetabular failure, and time to revision were also recorded.
Results
1335 THAs were included. 516 using the 150 mm stem and 819 using the 125 mm stem. There were 4055.5 and 3227.8 component years analysed in the standard stem and short stem groups respectively due to a longer mean follow up in the 150 mm group. Patient reported outcomes were comparable across all groups. Revision rates were comparable between the standard 150 mm stem (0.44 revisions/100 component years) and the short 125 mm stem (0.56 revisions/100 component years) with no statistically significant difference found (p = 0.240).
Conclusion
Routine use of a short 125 mm stem had no statistically significant impact on revision rate or PROMS scores when compared to a standard 150 mm stem. There may be benefits to routine use of a short cemented femoral implant.
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References
Hook S, Moulder E, Yates PJ, Burston BJ, Whitley E, Bannister GC (2006) The Exeter Universal stem: a minimum ten-year review from an independent centre. J Bone Joint Surg Br 88(12):1584–1590. https://doi.org/10.1302/0301-620X.88B12.18345
Morishima T, Ginsel BL, Choy GG, Wilson LJ, Whitehouse SL, Crawford RW (2014) Periprosthetic fracture torque for short versus standard cemented hip stems: an experimental in vitro study. J Arthroplasty 29(5):1067–1071. https://doi.org/10.1016/j.arth.2013.10.016
Beals RK, Tower SS (1996) Periprosthetic fractures of the femur. An analysis of 93 fractures. Clin Orthop Relat Res 327238–246. https://doi.org/10.1097/00003086-199606000-00029
Jørgensen PB, Jakobsen SS, Vainorius D, Homilius M, Hansen TB, Stilling M (2023) Less early subsidence of cemented Exeter short stems compared with cemented Exeter standard stems in Dorr type A femurs. Bone Jt Open 4(7):507–515. https://doi.org/10.1302/2633-1462.47.BJO-2023-0008.R1
NZOA. New Zealand Joint Registry Twenty-one year report January 1999 to December 2019 [Internet]. https://www.nzoa.org.nz. Accessed 04 Feb 2023
Feyen H, Shimmin AJ (2014) Is the length of the femoral component important in primary total hip replacement? Bone Joint J 96–B(4):442–448. https://doi.org/10.1302/0301-620X.96B4.33036
Gaston P, Clement ND, Ohly NE, Macpherson GJ, Hamilton DF (2023) Can Arthroplasty Stem Influence Outcome: a randomized controlled trial of stem length in cemented total hip arthroplasty. J Arthroplasty 38(9):1793–1801. https://doi.org/10.1016/j.arth.2023.02.045
Choy GG, Roe JA, Whitehouse SL, Cashman KS, Crawford RW (2013) Exeter short stems compared with standard length Exeter stems: experience from the Australian Orthopaedic Association National Joint Replacement Registry. J Arthroplasty 28(1):103–9e1. https://doi.org/10.1016/j.arth.2012.06.016
Chiu KH, Cheung KW, Chung KY, Shen WY (2011) Exeter small femoral stem for patients with small femurs. J Orthop Surg (Hong Kong) 19(3):279–283. https://doi.org/10.1177/230949901101900303
Martin R, Clark N, James J, Baker P (2022) Clinical evaluation of the cemented Exeter Short 125 mm stem at a minimum of 3 years: a prospective cohort study. J Orthop 30:18–24. https://doi.org/10.1016/j.jor.2022.02.005
Zhu M, Ravi S, Frampton C, Luey C, Young S (2016) New Zealand Joint Registry data underestimates the rate of prosthetic joint infection. Acta Orthop 87(4):346–350. https://doi.org/10.3109/17453674.2016.1171639
Shafy TA, Sayed A, Abdelazeem AH (2016) Study of the bone behavior around a neck preserving short stem implant: bone densitometric analysis over a span of two years. SICOT J 2:31. https://doi.org/10.1051/sicotj/2016025
Carrington NC, Sierra RJ, Gie GA, Hubble MJ, Timperley AJ, Howell JR (2009) The Exeter Universal cemented femoral component at 15 to 17 years: an update on the first 325 hips. J Bone Joint Surg Br 91(6):730–737. https://doi.org/10.1302/0301-620X.91B6.21627
Liang HD, Yang WY, Pan JK, Huang HT, Luo MH, Zeng LF, Liu J (2018) Are short-stem prostheses superior to conventional stem prostheses in primary total hip arthroplasty? A systematic review and meta-analysis of randomised controlled trials. BMJ Open 8(9):e021649. https://doi.org/10.1136/bmjopen-2018-021649
Zhang Z, Xing Q, Li J, Jiang Z, Pan Y, Hu Y, Wang L (2021) A comparison of short-stem prostheses and conventional stem prostheses in primary total hip arthroplasty: a systematic review and meta-analysis of randomized controlled trials. Ann Transl Med 9(3):231. https://doi.org/10.21037/atm-20-4043
Wyatt MC, Poutawera V, Kieser DC, Frampton CMA, Hooper GJ (2020) How do cemented short Exeter stems perform compared with standard-length Exeter stems? The experience of the New Zealand National Joint Registry. Arthroplast Today 6(1):104–111. https://doi.org/10.1016/j.artd.2020.01.003
Sheridan G, Hughes H, Welch-Phillips A, Kenny P, O’Toole G, O’Byrne J (2020) The varus cemented femoral stem in total hip arthroplasty: predictors, implications and the femoral Access ratio. J Orthop 23:8–12. https://doi.org/10.1016/j.jor.2020.12.012
Clement ND, Patrick-Patel S, MacDonald R, Breusch D (2016) Total hip replacement: increasing femoral offset improves functional outcome. Arch Orthop Trauma Surg 136(9):1317–1323. https://doi.org/10.1007/s00402-016-2527-4
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Appendix: Survival analysis data with revision free years of follow up and number of revisions recorded
Appendix: Survival analysis data with revision free years of follow up and number of revisions recorded
N | Sum comp. Yrs | Revisions | Rate/100-component-years | Lower 95% CI | Upper 95% CI | |
---|---|---|---|---|---|---|
125 mm | ||||||
819 | 3227.8 | 18 | 0.56 | 0.33 | 0.88 | |
Revision-Free | Lower 95% CI | Upper 95% CI | Revisions | Prostheses Available | ||
Year of follow-up | 1 | 98.17% | 97.25% | 99.09% | 15 | 795 |
2 | 97.90% | 96.92% | 98.89% | 17 | 635 | |
3 | 97.90% | 96.92% | 98.89% | 17 | 506 | |
4 | 97.71% | 96.65% | 98.76% | 18 | 393 | |
5 | 97.71% | 96.65% | 98.76% | 18 | 275 | |
6 | 97.71% | 96.65% | 98.76% | 18 | 162 | |
7 | 97.71% | 96.65% | 98.76% | 18 | 63 | |
150 mm | ||||||
516 | 4055.5 | 18 | 0.44 | 0.25 | 0.69 | |
Revision-Free | Lower 95% CI | Upper 95% CI | Revisions | Prostheses Available | ||
Year of follow-up | 1 | 97.86% | 96.61% | 99.11% | 11 | 498 |
2 | 97.07% | 95.60% | 98.53% | 15 | 473 | |
3 | 96.86% | 95.35% | 98.37% | 16 | 462 | |
4 | 96.86% | 95.35% | 98.37% | 16 | 448 | |
5 | 96.64% | 95.07% | 98.21% | 17 | 420 | |
6 | 96.40% | 94.76% | 98.04% | 18 | 391 | |
7 | 96.40% | 94.76% | 98.04% | 18 | 362 |
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Boyle, A.B., Kuperus, T., Maheno, T. et al. Equivalent revision rates and patient reported outcomes with routine use of a short (125mm) cemented stem for total hip arthroplasty compared to a standard length (150mm) cemented stem. A two surgeon series of 1335 patients. Arch Orthop Trauma Surg 144, 2019–2026 (2024). https://doi.org/10.1007/s00402-024-05235-3
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DOI: https://doi.org/10.1007/s00402-024-05235-3