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Staunton P, Alhojailan K, Desgagne C, Epure L, Zukor D, Huk O, Antoniou J. Acute Periprosthetic Hip Fractures With Short, Uncemented Femoral Stems. J Arthroplasty 2024:S0883-5403(24)00572-2. [PMID: 38851408 DOI: 10.1016/j.arth.2024.05.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/10/2024] Open
Abstract
BACKGROUND Uncemented femoral stems in hip arthroplasty have shown excellent long-term results, and several systematic studies indicate satisfactory performance of short stems. However, biomechanical and finite element analysis studies have suggested that shorter stems allow greater micromotion, producing greater strain at the implant-bone interface, which potentially increases the risk for periprosthetic fracture (PPF). We sought to assess this risk within our unit. METHODS Our institution's arthroplasty database was searched for all primary total hip arthroplasties using short femoral stems performed between July 14, 2009 and August 29, 2022. The overall PPF rate and the PPF rate for individual femoral stems were established. Preoperative X-rays for each case were analyzed to characterize individual proximal femoral geometry. A data analysis was performed to identify risk factors for PPF. RESULTS For the time period assessed, 3,192 short femoral stems were implanted. This included 1,561 of stem A and 1,631 of stem B. Women constituted 55.37% of the cohort. The average patient age was 66 years (range, 22 to 95). The PPF rate was 0.6%, with 19 PPFs identified at a follow-up of 3 months. There was a significantly higher fracture rate in stem A (0.96%) compared to stem B (0.25%) (P ≤ .01). Proximal femoral geometry, age, and sex were not determined to be risk factors for PPF in our cohort. Individual surgeons and surgical approaches appeared to confer no increased risk. There was no significant difference in average stem length, but multivariate analysis identified stem type and stem length as an independent risk factor for PPF. CONCLUSIONS Our study identified individual stem and stem length as independent risk factors for PPF within our cohort. PPF is a multifactorial issue, and consensus on emerging risk factors such as implant design will hopefully inform decisions that can provide further risk reduction for individual patients.
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Affiliation(s)
- Peter Staunton
- Department of Orthopedics, Jewish General Hospital, Montreal, Quebec, Canada; McGill University, Montreal, Quebec, Canada
| | - Khalifa Alhojailan
- Department of Orthopedics, Jewish General Hospital, Montreal, Quebec, Canada; McGill University, Montreal, Quebec, Canada
| | | | - Laura Epure
- Department of Orthopedics, Jewish General Hospital, Montreal, Quebec, Canada
| | - David Zukor
- Department of Orthopedics, Jewish General Hospital, Montreal, Quebec, Canada; McGill University, Montreal, Quebec, Canada
| | - Olga Huk
- Department of Orthopedics, Jewish General Hospital, Montreal, Quebec, Canada; McGill University, Montreal, Quebec, Canada
| | - John Antoniou
- Department of Orthopedics, Jewish General Hospital, Montreal, Quebec, Canada; McGill University, Montreal, Quebec, Canada
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Bourget-Murray J, Biniam B, Bhullar RS, Kim P, Gofton W, Beaulé PE, Grammatopoulos G. Early- to mid-term outcome of a short, cementless, titanium, flat, tapered stem for primary total hip arthroplasty: an independent series. Hip Int 2024; 34:327-335. [PMID: 38073478 PMCID: PMC11071641 DOI: 10.1177/11207000231216421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 10/10/2023] [Indexed: 12/21/2023]
Abstract
INTRODUCTION This study aims to: (1) describe perioperative complications amongst patients who underwent primary total hip arthroplasty (THA) using a short cementless, titanium, flat, tapered stem; (2) estimate this stem's early- to mid-term survival; (3) identify factors associated with revision arthroplasty; and (4) describe femoral remodelling at minimum 6 years postoperatively. METHODS A retrospective review of consecutive patients who underwent THA using a Taperloc Microplasty stem (Zimmer-Biomet, Warsaw, Indiana, USA) with minimum 2-year follow-up was performed. Surgeries were performed by 1 of 6, non-designer, arthroplasty surgeons between 2014 and 2018. Outcomes included perioperative complications including revision arthroplasty, and survival. Cox analysis was used to analyse the effect of different factors on risk of revision arthroplasty. Radiographs with 6-year follow-up served to describe femoral remodelling. RESULTS In 1205 patients, followed for 5.1 ± 1.4 years, the incidence of perioperative complication was 5.2% for which 29 patients (2.4%) required revision arthroplasty. The 5- and 7-year survival rates were 97.8% (95% CI, 96.9-98.5) and 97.0% (95% CI, 95.6-98.0), respectively. The only factor associated with revision arthroplasty was proximal femur morphology, as per Dorr classification (HR 1.24 [95%CI, 1.09-1.41]; p = 0.005). During radiographic assessment, 12% of patients showed ⩾25% of relative change in cortical thickness in Gruen zones 3 or 5. We observed calcar remodelling in 50% of radiographs while 10% showed presence of a pedestal sign. CONCLUSIONS The 7-year survivorship of the Taperloc Microplasty stem is within National Institute for Health and Care Excellence (NICE) guidelines. Patients ⩽65 years with osteoarthritis and Dorr A/B femoral morphology may be ideal candidates for THA with this stem. Femoral remodelling is common and not associated with adverse outcome.
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Affiliation(s)
- Jonathan Bourget-Murray
- Department of Surgery, Division of Orthopaedic Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Brook Biniam
- Department of Surgery, Division of Orthopaedic Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Raman S Bhullar
- Department of Surgery, Division of Orthopaedic Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Paul Kim
- Department of Surgery, Division of Orthopaedic Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Wade Gofton
- Department of Surgery, Division of Orthopaedic Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - Paul E Beaulé
- Department of Surgery, Division of Orthopaedic Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
| | - George Grammatopoulos
- Department of Surgery, Division of Orthopaedic Surgery, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada
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Girard J. What role for short stems in 2023? Orthop Traumatol Surg Res 2024; 110:103779. [PMID: 38040113 DOI: 10.1016/j.otsr.2023.103779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 03/23/2023] [Indexed: 12/03/2023]
Abstract
Current trends in total hip replacement aim at soft tissue and bone stock conservation. At the same time, mean patient age has been decreasing from decade to decade, raising the issue of iterative revision. Short stems seek to resolve the problem on the femoral side. Hopefully, revision of a short stem will be easier and bone stock depletion will be less than with a standard stem. Short stems also seem to have other advantages: automatically personalized biomechanical reconstruction, easier minimally invasive strategies, very low rate of hip pain, more harmonious distribution of bone stress, etc. Despite these advantages, however, use of short stems since their introduction in the late 1980s has varied from country to country, and is not widespread in France. The present study addressed several questions concerning these implants. Firstly, what is a "short" stem? Then, what are the indications and contraindications? Shortened standard stems do not come under the concept of short stem and will not be dealt with here. Furthermore, the learning curve and specificities of short stems need to be acquired. Implantation technique differs greatly from standard stems, and short stem implantation requires particular rigor. Results also need to be assessed, and especially the rate of complications as compared to standard stems. And lastly, it needs to be determined whether the advantages are real or only theoretical: this will determine their usefulness and role in the armamentarium, in which short stems are a new paradigm. LEVEL OF EVIDENCE: Expert opinion.
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Affiliation(s)
- Julien Girard
- Université Lille Nord de France, 59000 Lille, France; Service d'Orthopédie II, Hôpital Salengro, CHU de Lille, place de Verdun, 59000 Lille, France; Université Lille, Université Artois, Université Littoral Côte d'Opale, EA 7369, Unité de Recherche Pluridisciplinaire Sport Santé Société (URePSS), 59000 Lille, France.
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Shahin M, Massé V, Belzile É, Bédard L, Angers M, Vendittoli PA. Midterm results of titanium conical Wagner stem with challenging femoral anatomy: Survivorship and unique bone remodeling. Orthop Traumatol Surg Res 2023; 109:103242. [PMID: 35158103 DOI: 10.1016/j.otsr.2022.103242] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/04/2021] [Accepted: 08/31/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Complex anatomy of the proximal femur makes total hip arthroplasty (THA) more challenging. Short, straight, fluted and conical titanium stem like the Wagner Cone can be helpful to address small femoral canal, increased femoral neck version, important leg length discrepancy or proximal femoral deformity. The outcome in these patients is less assured and associated with high rate of complications. Therefore, we did a retrospective study aiming to answer: 1) can the Wagner Cone stem provide acceptable mid- to long-term implant survivorship; 2) help minimizing perioperative adverse events; 3) produce favorable clinical outcome measured by WOMAC score; and 4) be associated with a favorable radiographic femoral bone remodeling at the last follow-up? HYPOTHESIS Wagner Cone stem is an advantageous solution for the distorted proximal femur in complex THA. PATIENTS AND METHOD Our cohort was derived from the patient registries where medical records of 88 patients (103 hips) who underwent primary THA using the Wagner prosthesis were retrospectively reviewed. Then, data was analyzed for patients' demographics and surgical data, and comparing preoperative, immediate postoperative and last follow-up data. Eleven patients (12 hips) were excluded (7 hips followed up less than 2 years or lost to follow-up, 3 hips that had the Wagner stem for revision and 2 Wagner stems inserted for periprosthetic fracture). This left 77 patients (91 hips) with Wagner cone stems implanted for more than 2 years between March 2003 and February 2017 by 7 surgeons in 3 academic hospitals. Implant revision, reoperations, WOMAC score and radiographic analyses were recorded at last follow-up. RESULTS After a mean follow-up of 7.8 (range, 2.0-16.2) years, Wagner stem survivorship was 98.9% (95% CI: 94 to 100%) with one (1.1%) stem revision for failure of osteointegration. Five (5.5%) acetabular revisions, one for aseptic loosening, 2 for adverse reaction to metal debris and 2 for infection. One (1.1%) sciatic neuropathy and 4 (4.4%) intraoperative fractures were encountered. The mean WOMAC score was 90.5±11.4 (59-100). Radiographic analysis showed clear signs of stem osseointegration and hypertrophic bone remodeling in 82 cases (92.1%). CONCLUSIONS Used in complex cases with proximal distorted femurs, the Wagner Cone stem demonstrated a low complication rate, a high-rate consistent adaptive bone remodeling, excellent clinical results, and midterm survival. It is a safe, reliable and advantageous option in complex primary THA. However, the contribution of the underlying cause of the secondary osteoarthritis on the long-term survival of the stem remains to be demonstrated. LEVEL OF EVIDENCE IV; retrospective study.
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Affiliation(s)
- Maged Shahin
- Surgery Department, Montreal University, Hôpital Maisonneuve-Rosemont, 5415, boulevard de l'Assomption, H1T 2M4 Montréal, Québec, Canada
| | - Vincent Massé
- Surgery Department, Montreal University, Hôpital Maisonneuve-Rosemont, 5415, boulevard de l'Assomption, H1T 2M4 Montréal, Québec, Canada; Clinique Orthopédique Duval, 1487, boulevard des Laurentides, H7M 2Y3 Laval, Québec, Canada
| | - Étienne Belzile
- Division of Orthopaedic Surgery, CHU de Québec, Université Laval, 1401 18(e), rue, Quebec, G1J 1Z4 QC, Canada; Personalized Arthroplasty Society, 3525, Piedmont road NE, Building 5 suite 300, 30305 Atlanta, GA, USA
| | - Luc Bédard
- Division of Orthopaedic Surgery, CHU de Québec, Université Laval, 1401 18(e), rue, Quebec, G1J 1Z4 QC, Canada
| | - Michèle Angers
- Division of Orthopaedic Surgery, CHU de Québec, Université Laval, 1401 18(e), rue, Quebec, G1J 1Z4 QC, Canada
| | - Pascal-André Vendittoli
- Surgery Department, Montreal University, Hôpital Maisonneuve-Rosemont, 5415, boulevard de l'Assomption, H1T 2M4 Montréal, Québec, Canada; Clinique Orthopédique Duval, 1487, boulevard des Laurentides, H7M 2Y3 Laval, Québec, Canada; Personalized Arthroplasty Society, 3525, Piedmont road NE, Building 5 suite 300, 30305 Atlanta, GA, USA.
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Gabrion M, Rattier S, Blondin E, Michaud A, Mertl P, Gabrion A. Survival and radioclinical evaluation of the Optimys™ short stem at more than 6years' mean follow-up: A retrospective study of 108 cases. Orthop Traumatol Surg Res 2023; 109:103470. [PMID: 36336294 DOI: 10.1016/j.otsr.2022.103470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 08/08/2022] [Accepted: 08/24/2022] [Indexed: 11/06/2022]
Abstract
INTRODUCTION The short stems developed in recent years offer an interesting alternative to standard long stems. The Optimys™ short stem has been widely studied, but not according to the National Institute for Health and Care Excellence (NICE) criteria. We therefore conducted a retrospective study of Optimys™ at a minimum 5years' follow-up, to assess: (1) survival on NICE criteria, (2) complications, (3) functional results, and (4) subsidence, restoration of offset and bone remodeling. HYPOTHESIS Optimys™ shows survival comparable to that of other non-cemented standard and short stems, with a<0.5% per year revision rate or<2.5% at 5years on NICE criteria. MATERIAL AND METHODS A single-center retrospective study included 108 Optimys™ stems at a mean 76.5months' follow-up (range: 60-112months). Clinical [Harris, Oxford-12 and forgotten hip (French version: SHO-12) scores] and radiologic data were collected pre- and postoperatively. Analysis focused on implant survival, complications, functional results and radiological results (restoration of offset, bone remodeling, subsidence and osseointegration) and risk factors for stem migration. RESULTS At a mean 76.5months' follow-up (range: 60-112months), Optimys™ survival was 97.7% (95% CI: 0.945-1). Oxford and Harris scores improved significantly: respectively, 16.1 vs. 44.7 [Δ=28.598; 95% CI: 27.410-29.785 (p<0.001)] and 45.3 vs. 95 [Δ=49.662; 95% CI: 47.442-51.882 (p<0.001)]. Mean forgotten hip score (SHO-12) at last follow-up was 82.7±19.6 (range: 35.4-100.0). There was 1 case of aseptic revision at 11months for femoral osseointegration defect. Mean subsidence was 1.64mm (range: 0-20.63mm); no predisposing factors could be identified. Femoral offset increased by a mean 2.41±4.53mm (range: -10.10 to 14.70mm). CONCLUSION The present study reports good survival for the Optimys™ stem, which meets NICE criteria. Radiologic and clinical results were encouraging, with a low rate of subsidence, comparable to other series, but with increased femoral offset. LEVEL OF EVIDENCE IV; retrospective cohort study.
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Affiliation(s)
- Matthieu Gabrion
- Service de chirurgie orthopédique et traumatologie, CHU Amiens-Picardie, 1, rue du Professeur-Christian-Cabrol, 80054 Amiens, France.
| | - Simon Rattier
- Service de chirurgie orthopédique et traumatologie, CHU Amiens-Picardie, 1, rue du Professeur-Christian-Cabrol, 80054 Amiens, France
| | - Emile Blondin
- Service de chirurgie orthopédique et traumatologie, CHU Amiens-Picardie, 1, rue du Professeur-Christian-Cabrol, 80054 Amiens, France
| | - Audrey Michaud
- Direction de la recherche clinique et de l'innovation, site Sud - Hall 1 - 1(er) étage zone administrative, 1, rond-point du Professeur-Christian-Cabrol, 80054 Amiens, France
| | - Patrice Mertl
- Service de chirurgie orthopédique et traumatologie, CHU Amiens-Picardie, 1, rue du Professeur-Christian-Cabrol, 80054 Amiens, France; UFR de médecine, pôle santé, 3, rue des Louvels, CS 13036, 80036 Amiens, France
| | - Antoine Gabrion
- Service de chirurgie orthopédique et traumatologie, CHU Amiens-Picardie, 1, rue du Professeur-Christian-Cabrol, 80054 Amiens, France; UFR de médecine, pôle santé, 3, rue des Louvels, CS 13036, 80036 Amiens, France
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Erivan R, Villatte G, Dartus J, Mertl P, Piriou P, Tracol P, Vernizeau M, Mulliez A, Puch JM, Girard J, Descamps S, Boisgard S. French Hip & Knee Society classification of short-stem hip prostheses: Inter- and intra-observer reproducibility. Orthop Traumatol Surg Res 2022; 108:103126. [PMID: 34700060 DOI: 10.1016/j.otsr.2021.103126] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/19/2021] [Accepted: 02/22/2021] [Indexed: 02/03/2023]
Abstract
INTRODUCTION In total hip replacement (THR), a short stem theoretically provides more physiological force transfer to the proximal femur, conserves bone stock and facilitates minimally invasive surgery. On the other hand, such implants involve a learning curve and incur risk of malpositioning or fracture and of secondary mobilization. There are several types of short stem, and classification is needed. Classifications exist, but are based more on implant length than on anchorage zone, and most have not been tested for reproducibility. The French Hip & Knee Society (SFHG) developed a short-stem classification based on anchorage zone inside the femur. The objectives of the present study were: (1) to present the classification, (2) to apply it to the short-stem models available in France and those widely used worldwide, and (3) to assess reproducibility. HYPOTHESIS The SFHG short-stem classification enables reproducible comparison. MATERIAL AND METHOD A short-stem classification according to anchorage zone was drawn up by an expert group. The stems and the classification were presented to 12 surgeons performing THR, who classified the stems according to the classification; a retest was performed 2 months later. RESULTS The classification is based on femoral stem anchorage site, in 5 types: type 1, cephalic; type 2, isolated cervical; type 3, Calcar femorale; type 4, metaphyseal; and type 5, conventional metaphyseal-diaphyseal, with shortened stems. Inter-observer reproducibility was 92.7% [95%CI: 91.7%-93.6%], with kappa 0.785 [95%CI: 0.755-0.814], and Lin test-rest concordance correlation coefficient 0.852 [95%CI: 0.836-0.869]. Intra-observer reproducibility was 94.0% [95%CI: 91.9%-96.1%], with kappa 0.820 [95%CI: 0.759-0.882], and Lin test-retest concordance correlation coefficient 0.820 [95%CI: 0.792-0.849]. DISCUSSION This new classification enables femoral implants to be reproducibly compared according to anchorage zone. LEVEL OF EVIDENCE IV; retrospective study without control group.
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Affiliation(s)
- Roger Erivan
- Hôpital Gabriel Montpied, Université Clermont Auvergne, CHU de Clermont Ferrand, BP 69, 63003 Clermont-Ferrand, France.
| | - Guillaume Villatte
- Hôpital Gabriel Montpied, Université Clermont Auvergne, CHU de Clermont Ferrand, BP 69, 63003 Clermont-Ferrand, France
| | - Julien Dartus
- Service d'orthopédie, Hôpital Roger-Salengro, Centre Hospitalier et Universitaire de Lille, Université de Lille Nord de France, France, place de Verdun, 59000 Lille, France
| | - Patrice Mertl
- Service d'orthopédie-traumatologie, CHU d'Amiens, Site Sud, 80054 Amiens cedex, France
| | | | - Philippe Tracol
- Cité Santé Plus, 1021, avenue Pierre-Mendès-France, 84300 Cavaillon, France
| | | | - Aurélien Mulliez
- Délégation à la Recherche Clinique, Université Clermont Auvergne, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France
| | - Jean-Marc Puch
- Clinique Saint-Georges, 2, avenue de Rimiez, 06100 Nice, France
| | - Julien Girard
- Service d'orthopédie, Hôpital Roger-Salengro, Centre Hospitalier et Universitaire de Lille, Université de Lille Nord de France, France, place de Verdun, 59000 Lille, France
| | - Stéphane Descamps
- Hôpital Gabriel Montpied, Université Clermont Auvergne, CHU de Clermont Ferrand, BP 69, 63003 Clermont-Ferrand, France
| | - Stéphane Boisgard
- Hôpital Gabriel Montpied, Université Clermont Auvergne, CHU de Clermont Ferrand, BP 69, 63003 Clermont-Ferrand, France
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