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Miettinen SSA, Sund R, Törmä SV, Kröger H. Incidences and Outcomes of Operatively Treated Interprosthetic Femoral Fractures Compared to Vancouver Type C and Rorabeck Type II Fractures. J Arthroplasty 2024; 39:452-458. [PMID: 37597818 DOI: 10.1016/j.arth.2023.08.041] [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: 01/11/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/21/2023] Open
Abstract
BACKGROUND This case-control study evaluated the incidences and outcomes of interprosthetic femoral fracture (IPFF) (Group I) and performed comparisons with Vancouver type C (Group II) and Rorabeck type II (Group III) periprosthetic femoral fractures (PPFF) occurring at similar anatomic sites. METHODS A retrospective analysis was performed for all patients who had a previously implanted total hip arthroplasty (THA) and total knee arthroplasty (TKA), who lived in the hospital district and had undergone surgery due to PPFF. A total of 153 PPFFs [Group I (n = 31), Group II (n = 21), and Group III (n = 108)] were included. The annual incidences of PPFFs were summarized per 100,000 individuals. The risks of complications, reoperations, and mortalities were evaluated for all groups. RESULTS The mean population-based annual incidence was 0.9 per 100,000 person years for Group I, 0.7 per 100,000 person years for Group II, and 3.1 per 100,000 person years for Group III. A total of 25 of 153 (16%) major complications were found and 23 of 153 (13%) cases resulted in a revision surgery. The cumulative incidence of death in Group I was 50.4% at 10 years, in Group II it was 63.8% at 10 years, and in Group III it was 74.9% at 10 years. CONCLUSION The annual incidence of the IPFF almost doubled while the incidence of Vancouver type C stayed stable and Rorabeck type II incidence increased 5-fold. Most of the major complications occurred in IPFF group, while Rorabeck type II patients had the worst survival.
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Affiliation(s)
- Simo S A Miettinen
- Department of Orthopaedics, Traumatology and Hand Surgery, Kuopio University Hospital, Kuopio, Finland; Kuopio Musculoskeletal Research Unit (KMRU), Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Reijo Sund
- Kuopio Musculoskeletal Research Unit (KMRU), Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland; Health and Social Economics Unit, Department of Health and Social Care Systems, Finnish Institute for Health and Welfare (THL), Finland
| | - Samuli V Törmä
- Department of Orthopaedics, Traumatology and Hand Surgery, Kuopio University Hospital, Kuopio, Finland
| | - Heikki Kröger
- Department of Orthopaedics, Traumatology and Hand Surgery, Kuopio University Hospital, Kuopio, Finland; Kuopio Musculoskeletal Research Unit (KMRU), Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
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Savvidou O, Gavriil P, Trikoupis IG, Goumenos S, Vottis C, Melissaridou D, Kaspiris A, Megaloikonomos PD, Papagelopoulos P. Ipsilateral Hip and Knee Reconstruction Using an Intramedullary Total Femoral Replacement System. J Long Term Eff Med Implants 2024; 34:59-63. [PMID: 37938206 DOI: 10.1615/jlongtermeffmedimplants.2022045124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The intramedullary total femoral reconstruction (ITFR) was used successfully in a 62-year-old patient with myxoid liposarcoma of the thigh and post-radiation fracture nonunion of the proximal femur and osteonecrosis of the ipsilateral knee. This described technique offers the advantage of a less invasive prosthesis insertion, preservation of the surrounding muscle attachments, better functional outcomes, and lower complication rates. Total femoral reconstruction using ITFR, preserving the femoral diaphysis, could be an option to address concomitant hip and knee defects, especially in patients with poor soft tissue quality.
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Affiliation(s)
- Olga Savvidou
- First Department of Orthopedics, National and Kapodistrian University of Athens, Medical School, ATTIKON University General Hospital, GREECE
| | - Panayiotis Gavriil
- First Department of Orthopedics, National and Kapodistrian University of Athens, Atikon University General Hospital, Athens, Greece
| | - Ioannis G Trikoupis
- First Department of Orthopedics, National and Kapodistrian University of Athens, School of Medicine, Attikon University Hospital, 12462, Athens, Greece
| | - Stavros Goumenos
- First Department of Orthopedics, National and Kapodistrian University of Athens, ATTIKON University General Hospital, Athens, Greece
| | - Christos Vottis
- First Department of Orthopedics, National and Kapodistrian University of Athens, ATTIKON University General Hospital, Greece
| | - Dimitra Melissaridou
- First Department of Orthopedics, National and Kapodistrian University of Athens, ATTIKON University General Hospital, Athens, Greece
| | - Angelos Kaspiris
- First Department of Orthopedics, National and Kapodistrian University of Athens, Atikon University General Hospital, Athens, Greece
| | - Panayiotis D Megaloikonomos
- First Department of Orthopaedics, National and Kapodistrian University of Athens, School of Medicine, ATTIKON University Hospital, Athens, Greece
| | - Panayiotis Papagelopoulos
- First Department of Orthopedics, National and Kapodistrian University of Athens, Atikon University General Hospital, Athens, Greece
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Marr N, Müller F, Füchtmeier B, Weber M, Eckstein C, Wulbrand C. [Treatment aspects of interprosthetic femur fractures-retrospective analysis of 70 patients]. ORTHOPADIE (HEIDELBERG, GERMANY) 2023; 52:916-923. [PMID: 37555977 DOI: 10.1007/s00132-023-04416-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/21/2023] [Indexed: 08/10/2023]
Abstract
BACKGROUND Interprosthetic femur fractures (IFF) are rare injuries, whose surgical treatment is basically with osteosynthesis or revision arthroplasty. Various therapy algorithms have been proposed based on very small study collectives. Factors influencing the outcome are not known. OBJECTIVES The aim of the retrospective monocentric study is to derive a treatment algorithm based on a large number of cases and to identify factors influencing the outcome. MATERIALS AND METHODS Between 2006 and 2020, 70 IFF were identified. The surgical treatment comprised 38 osteosyntheses, 30 revision arthroplasties and 2 amputations. With classification and time to surgery, 69 perioperative variables were recorded. General and operative complications, as well as mortality, were determined in the follow-up period of 1 year. RESULTS ASA and Charlson score correlated with 1‑year-mortality. In addition, preoperatively increased CRP levels, reduced hemoglobin and the CHA2DS2-VASc score were identified as factors influencing mortality. Surgery within 24 h showed a trend towards fewer general complications. Transferred patients indicated an increased mortality. Based on classification according to Pires et al. or Füchtmeier et al. no clear treatment decision could be made. Relevant criteria for the surgical treatment were fracture localization, implant stability, bone vitality, anchoring possibility of the revision stem, as well as general condition of the patient. CONCLUSIONS The identified factors influencing the outcome correspond to those of patients with hip fractures. IFF should be treated timely. A treatment path was developed on the basis of the largest patient group to date.
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Affiliation(s)
- Nathalie Marr
- Klinik für Unfallchirurgie, Orthopädie und Sportmedizin, Krankenhaus Barmherzige Brüder, Prüfeninger Str. 86, 93049, Regensburg, Deutschland
| | - Franz Müller
- Klinik für Unfallchirurgie, Orthopädie und Sportmedizin, Krankenhaus Barmherzige Brüder, Prüfeninger Str. 86, 93049, Regensburg, Deutschland
| | - Bernd Füchtmeier
- Klinik für Unfallchirurgie, Orthopädie und Sportmedizin, Krankenhaus Barmherzige Brüder, Prüfeninger Str. 86, 93049, Regensburg, Deutschland
| | - Markus Weber
- Klinik für Unfallchirurgie, Orthopädie und Sportmedizin, Krankenhaus Barmherzige Brüder, Prüfeninger Str. 86, 93049, Regensburg, Deutschland
| | - Christoph Eckstein
- Klinik für Unfallchirurgie, Orthopädie und Sportmedizin, Krankenhaus Barmherzige Brüder, Prüfeninger Str. 86, 93049, Regensburg, Deutschland
| | - Christian Wulbrand
- Klinik für Unfallchirurgie, Orthopädie und Sportmedizin, Krankenhaus Barmherzige Brüder, Prüfeninger Str. 86, 93049, Regensburg, Deutschland.
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Immediate Weight-Bearing Following Biplanar Plating of Periprosthetic Femoral Fractures. Tech Orthop 2022. [DOI: 10.1097/bto.0000000000000612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Pica G, Liuzza F, Ronga M, Meccariello L, Mauro DD, Smakaj A, De Cruto E, Rollo G. Interprosthetic and interimplant femoral fractures: is bone strut allograft augmentation with ORIF a validity alternative solution in elderly? Orthop Rev (Pavia) 2022; 14:38558. [PMID: 36267217 PMCID: PMC9568417 DOI: 10.52965/001c.38558] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Nowadays orthopedic surgeons have a new challenge to treat the interimplants fractures. Although fixation strategies exist for periprosthetic hip and knee fractures, there is no standard of care regarding the more complex interprosthetic and interimplants fractures. OBJECTIVE The aim of our study is targeting the focus on the bone strut grafting to avoid the metal hardware failure and to achieve the bone healing in these injuries. METHODS A prospective case note review of all interprosthetic or interimplants femoral fractures admitted to our trauma center. There were 11 patients (2 males and 9 females) with a mean age over 85 years old. We treated all the patients by ORIF and medial graft strut allograft to reduce the main complication leading to re-operations and morbidity or mortality is the nonunion or delayed union. The criteria to evaluate the patients during the follow-up were: the survival and complication after the surgery; the objective quality of life measured by Activities of Daily Living Score (ADL). The bone healing was measured by X-rays control as the alignment was measured by radiographic UNION SCORE, and postoperative complications. RESULTS All the patients reduced their ADL. In the most of cases we had a good x-rays reduction. We had not: No nonunion or Not delayed union. All patients died within 2 years from the surgery but not due by surgical complications. CONCLUSIONS According us, the purpose of this surgery is to limit comorbidities and early mortality not to improve optimal restoration of lower limb function.
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Affiliation(s)
- Giuseppe Pica
- Department of Orthopaedics and Traumatology, AORN San Pio, Benevento, Italy
| | - Francesco Liuzza
- Department of Orthopaedics and Traumatology, A. Gemelli University Hospital, Rome, Italy; Catholic University of the Sacred Heart, Rome, Italy
| | - Mario Ronga
- Orthopedics and Trauma Operative Unit, Department of Biomedical and Dental Sciences and Morpho-Functional Imaging, University of Messina, University Hospital G. Martino, Messina, Italy
| | - Luigi Meccariello
- Department of Orthopaedics and Traumatology, AORN San Pio, Benevento, Italy
| | - Domenico De Mauro
- Department of Orthopaedics and Traumatology, A. Gemelli University Hospital, Rome, Italy; Catholic University of the Sacred Heart, Rome, Italy
| | - Amarildo Smakaj
- Department of Orthopaedics and Traumatology, A. Gemelli University Hospital, Rome, Italy; Catholic University of the Sacred Heart, Rome, Italy
| | - Enio De Cruto
- Department of Orthopedics and Traumatology, Vito Fazzi Hospital, Lecce, Italy
| | - Giuseppe Rollo
- Department of Orthopedics and Traumatology, Vito Fazzi Hospital, Lecce, Italy
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McMellen CJ, Romeo NM. Interprosthetic Femur Fractures: A Review Article. JBJS Rev 2022; 10:01874474-202209000-00004. [PMID: 36137069 DOI: 10.2106/jbjs.rvw.22.00080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
➢ The prevalence of interprosthetic femur fractures (IFFs) is rising with the aging population and increased prevalence of total joint arthroplasty. ➢ IFFs have high rates of complications and high associated morbidity and mortality. ➢ The main treatment methods available for IFFs include plate fixation, intramedullary nailing, combined plate fixation and intramedullary nailing, and revision arthroplasty including partial and total femur replacement. ➢ There have been several proposed classification systems and at least 1 proposed treatment algorithm for IFFs; however, there is no consensus. ➢ Whichever treatment option is chosen, goals of surgery should include preservation of blood supply, restoration of length, alignment, rotation, and sufficient stabilization to allow for early mobilization.
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Affiliation(s)
- Christopher J McMellen
- MetroHealth Medical Center, Department of Orthopaedic Surgery, Case Western Reserve University School of Medicine, Cleveland, Ohio
- University Hospitals Cleveland Medical Center, Department of Orthopaedic Surgery, Cleveland, Ohio
| | - Nicholas M Romeo
- MetroHealth Medical Center, Department of Orthopaedic Surgery, Case Western Reserve University School of Medicine, Cleveland, Ohio
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Gheewala RA, Young JR. Classifications in Brief: Pires Classification of Interprosthetic Femur Fractures. Clin Orthop Relat Res 2022; 480:1666-1671. [PMID: 35616481 PMCID: PMC9384940 DOI: 10.1097/corr.0000000000002263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/05/2022] [Indexed: 01/31/2023]
Affiliation(s)
- Rohan A. Gheewala
- Department of Orthopedic Surgery, Albany Medical Center, Albany, NY, USA
| | - Joseph R. Young
- Department of Orthopedic Surgery, Albany Medical Center, Albany, NY, USA
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Mondanelli N, Troiano E, Facchini A, Ghezzi R, Di Meglio M, Nuvoli N, Peri G, Aiuto P, Colasanti GB, Giannotti S. Treatment Algorithm of Periprosthetic Femoral Fracturens. Geriatr Orthop Surg Rehabil 2022; 13:21514593221097608. [PMID: 35573905 PMCID: PMC9096211 DOI: 10.1177/21514593221097608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Introduction. The ever-expanding indications for total hip arthroplasty are leading to more implants being placed in younger as well as in older patients with high functional demand. Also, prolonged life expectancy is contributing to an overall increment of periprosthetic femoral fractures. The Vancouver classification has been the most used for guiding the surgeon choice since its proposal in 1995. Fractures occurring over a hip femoral implant can be divided into intra-operative and post-operative PFFs, and their treatment depends on factors that may severely affect the outcome: level of fracture, implant stability, quality of bone stock, patients' functional demand, age and comorbidities, and surgeon expertise. There are many different treatment techniques available which include osteosynthesis and revision surgery or a combination of both. The goals of surgical treatment are patients' early mobilization, restoration of anatomical alignment and length with a stable prosthesis and maintenance of bone stock. Significance. The aim of this review is to describe the state-of-the-art treatment and outcomes in the management of PFFs. We performed a systematic literature review of studies reporting on the management of PFFs around hip stems and inter-prosthetic fractures identifying 45 manuscripts eligible for the analysis. Conclusions. PFFs present peculiar characteristic that must be considered and special features that must be addressed. Their management is complex due to the extreme variability of stem designs, the possibility of having cemented or uncemented stems, the difficulty in identifying the "real" level of the fracture and the actual stability of the stem. As a result, the definition of a standardized treatment is unlikely, thereby high expertise is fundamental for the surgical management of PPFs, so this kind of fractures should be treated only in specialized centres with both high volume of revision joint arthroplasty and trauma surgery.
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Affiliation(s)
- Nicola Mondanelli
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
- Section of Orthopedics, Policlinico Santa Maria alle Scotte, Azienda Ospedaliero-Universitaria Senese, Italy
| | - Elisa Troiano
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
- Section of Orthopedics, Policlinico Santa Maria alle Scotte, Azienda Ospedaliero-Universitaria Senese, Italy
| | - Andrea Facchini
- Arcispedale Santa Maria Nuova, Azienda USL di Reggio Emilia, Italy
| | - Roberta Ghezzi
- Ospedale Santa Maria degli Angeli, Azienda Sanitaria Friuli Occidentale, Italy
| | - Martina Di Meglio
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
- Section of Orthopedics, Policlinico Santa Maria alle Scotte, Azienda Ospedaliero-Universitaria Senese, Italy
| | - Nicolò Nuvoli
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
- Section of Orthopedics, Policlinico Santa Maria alle Scotte, Azienda Ospedaliero-Universitaria Senese, Italy
| | - Giacomo Peri
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
- Section of Orthopedics, Policlinico Santa Maria alle Scotte, Azienda Ospedaliero-Universitaria Senese, Italy
| | - Pietro Aiuto
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
- Section of Orthopedics, Policlinico Santa Maria alle Scotte, Azienda Ospedaliero-Universitaria Senese, Italy
| | - Giovanni Battista Colasanti
- Section of Orthopedics, Policlinico Santa Maria alle Scotte, Azienda Ospedaliero-Universitaria Senese, Italy
- Ospedale Santa Maria delle Croci, Azienda USL della Romagna, Italy
| | - Stefano Giannotti
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
- Section of Orthopedics, Policlinico Santa Maria alle Scotte, Azienda Ospedaliero-Universitaria Senese, Italy
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Bonnomet F, Favreau H, Bonnevialle P, Adam P, Ehlinger M. Interimplant femoral fractures. Orthop Traumatol Surg Res 2022; 108:103117. [PMID: 34666198 DOI: 10.1016/j.otsr.2021.103117] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 02/03/2023]
Abstract
The number of hip or knee arthroplasties, and internal fixations of the proximal and distal femur, is increasing in proportion to the growing and ageing population, whose life expectancy is lengthening. Thus, fractures of the femur between proximal and distal implants, although rare, are becoming more frequent. Women over the age of 70, with fragile bones and whose ends of the two implants are close to each other ("kissing implants") are particularly vulnerable to them. Reliable and reproducible fracture classifications exist when it comes to 2 prostheses, but they are less well established in the presence of one, or even two, non-prosthetic implants. Their treatment is difficult and must consider the possibility of fracture consolidation while ensuring or restoring the stability and role of the implants. Whether it is the main element of treatment or a complement to prosthesis revision, locked plating forms the basis of the treatment but it must be rigorous, considering that failures are mainly the result of technical errors. Other more invasive treatments (total femoral arthroplasty, cortical sleeves) are offered more rarely if consolidation appears compromised.
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Affiliation(s)
- François Bonnomet
- Service d'orthopédie et de traumatologie, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, 67098 Strasbourg, France.
| | - Henri Favreau
- Service d'orthopédie et de traumatologie, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, 67098 Strasbourg, France
| | - Paul Bonnevialle
- Département universitaire d'orthopédie traumatologie, hôpital Paul-Riquet, place Baylac, 31052 Toulouse, France
| | - Philippe Adam
- Service d'orthopédie et de traumatologie, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, 67098 Strasbourg, France
| | - Matthieu Ehlinger
- Service d'orthopédie et de traumatologie, hôpital de Hautepierre, hôpitaux universitaires de Strasbourg, 67098 Strasbourg, France
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Direct medical costs of interprosthetic femoral fracture treatment: A cohort analysis. Injury 2021; 52:3673-3678. [PMID: 33972097 DOI: 10.1016/j.injury.2021.04.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 04/15/2021] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Periprosthetic femoral fractures (PPFs) represent a challenging clinical problem with a fast-rising incidence. Interprosthetic fractures (IPFs) represent one of its most difficult variants. There is a paucity of data regarding the financial burden of PPFs, and none for IPFs. This study aims to estimate the direct medical cost of the surgical treatment of IPFs in NHS, and analyse the factors influencing this when using different methods of surgical treatment. METHODS A cohort of patients with IPFs treated in a single academic unit over a period of 8-years with different surgical methods was studied. In-hospital details, as well as outpatient follow-up data, were gathered relevant to their clinical and radiological outcome until discharge. Local and national NHS data were acquired from the financial department, as well as industry-related resources. The economic analysis was structured as a cost identification analysis (CIA) of the overall cohort, but also as a comparative best-case scenario (uncomplicated course till discharge) comparison between the 3 main different management strategies (a) revision arthroplasty (RTHA), b) plate fixation (ORIF), c) combination of implants (COMBO). RESULTS Data from 28 patients (22 females) with IPFs were analysed with a median age of 78.4 years. The overall direct medical cost of treating this cohort of patients was £468,330, with a median of £15.625 (range £10,128 to 33,060). Comparing the three different surgical modalities, the median cost in groups a, b, and c was £20,793 (range £12,110 to £24,116), £12,979 (range £10,128 to £20,555), and £22,316 (range £10,938 to £23,081) respectively. In all groups, the 2/3 of the identified costs were relevant to the inpatient stay. Transfusions were the highest (3 units of cRBC on average) to the patients that received a revision THA vs the other two groups (p=0.022). There was statistically significant higher mean overall cost between the RTHA and the ORIF groups (£19,453 vs. £14,201, p=0.0242), but not when compared with the COMBO cases (£19,453 vs. £18,788, p=0.86). CONCLUSION The first cost identification study and "best case scenario" comparative analysis for IPFs demonstrated a significant overall direct medical cost, when managing these complex fractures with variable contemporary techniques. Evidence based reimbursement strategies should be developed to allow the sustainability of the clinical service we offer in this challenging patient population.
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Matar HE, Bloch BV, James PJ. High Survivorship of Short-Cemented Femoral Stems in Condylar Revision Total Knee Arthroplasty Without Significant Metaphyseal Bone Loss: Minimum 5-Year Follow-Up. J Arthroplasty 2021; 36:3543-3550. [PMID: 34183212 DOI: 10.1016/j.arth.2021.05.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/19/2021] [Accepted: 05/26/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND We aimed to evaluate the outcomes of hybrid fixation technique in condylar revision total knee arthroplasty (rTKA) using cementless metaphyseal tibial sleeves and short-cemented femoral stems with a rotating platform articulation. METHODS Retrospective consecutive study of all condylar rTKAs with a cemented femoral stem between 2009 and 2016 was conducted. Patients were identified using a local prospective database and linkable data obtained from the National Joint Registry for rTKA. Demographic, clinical, and surgical data were collected from patients' electronic health records. The primary outcome measure was mechanical failure and implant survivorship using a nationally collected data, complications, re-operations, and "any-cause revision" were also recorded. RESULTS There were 72 consecutive patients (72 knees) with minimum 5-year follow-up: 33 (45.8%) females and 39 (54.2%) males with a median age of 70 years (range 47-88). The indication for revision surgery was aseptic loosening (n = 34, 47.2%), instability (n = 17, 23.6%), infection (n = 14, 19.5%) with 10 patients having 2-stage approach and 4 patients with single-stage approach, stiffness (n = 4, 5.6%), and malalignment (n = 3, 4.1%). At mean follow-up of 6.87 years (median 6.7; range 5-11.8), only 2 patients required revision for infection. Using "any-cause implant revision" as an end point, implant survivorship for this construct was 97.2% at median 6.7 years. To date, none of the femoral stems have been revised for mechanical failure. CONCLUSION In rTKA with good femoral condylar bone stock, we have shown excellent survivorship with a short-cemented femoral stem, in conjunction with a mobile-bearing and a tibial sleeve. This has the advantage of reducing the length of the revision construct of this complex surgery. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Hosam E Matar
- Nottingham Elective Orthopaedic Services, City Hospital Knee Revision Unit, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Benjamin V Bloch
- Nottingham Elective Orthopaedic Services, City Hospital Knee Revision Unit, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Peter J James
- Nottingham Elective Orthopaedic Services, City Hospital Knee Revision Unit, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
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Abstract
PURPOSE OF REVIEW Fracture fixation aims to provide stability and promote healing, but remains challenging in unstable and osteoporotic fractures with increased risk of construct failure and nonunion. The first part of this article reviews the clinical motivation behind finite element analysis of fracture fixation, its strengths and weaknesses, how models are developed and validated, and how outputs are typically interpreted. The second part reviews recent modeling studies of the femur and proximal humerus, areas with particular relevance to fragility fractures. RECENT FINDINGS There is some consensus in the literature around how certain modeling aspects are pragmatically formulated, including bone and implant geometries, meshing, material properties, interactions, and loads and boundary conditions. Studies most often focus on predicted implant stress, bone strain surrounding screws, or interfragmentary displacements. However, most models are not rigorously validated. With refined modeling methods, improved validation efforts, and large-scale systematic analyses, finite element analysis is poised to advance the understanding of fracture fixation failure, enable optimization of implant designs, and improve surgical guidance.
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Affiliation(s)
- Gregory S Lewis
- Department of Orthopaedics and Rehabilitation, Pennsylvania State University, Hershey, PA, USA.
| | | | - Hwabok Wee
- Department of Orthopaedics and Rehabilitation, Pennsylvania State University, Hershey, PA, USA
| | - J Spence Reid
- Department of Orthopaedics and Rehabilitation, Pennsylvania State University, Hershey, PA, USA
| | - Peter Varga
- AO Research Institute Davos, Davos, Switzerland
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Tibbo ME, Limberg AK, Gausden EB, Huang P, Perry KI, Yuan BJ, Berry DJ, Abdel MP. Outcomes of operatively treated interprosthetic femoral fractures. Bone Joint J 2021; 103-B:122-128. [PMID: 34192901 DOI: 10.1302/0301-620x.103b7.bjj-2020-2275.r1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS The prevalence of ipsilateral total hip arthroplasty (THA) and total knee arthroplasty (TKA) is rising in concert with life expectancy, putting more patients at risk for interprosthetic femur fractures (IPFFs). Our study aimed to assess treatment methodologies, implant survivorship, and IPFF clinical outcomes. METHODS A total of 76 patients treated for an IPFF from February 1985 to April 2018 were reviewed. Prior to fracture, at the hip/knee sites respectively, 46 femora had primary/primary, 21 had revision/primary, three had primary/revision, and six had revision/revision components. Mean age and BMI were 74 years (33 to 99) and 30 kg/m2 (21 to 46), respectively. Mean follow-up after fracture treatment was seven years (2 to 24). RESULTS Overall, 59 fractures were classified as Vancouver C (Unified Classification System (UCS) D), 17 were Vancouver B (UCS B). In total, 57 patients (75%) were treated with open reduction and internal fixation (ORIF); three developed nonunion, three developed periprosthetic joint infection, and two developed aseptic loosening. In all, 18 patients (24%) underwent revision arthroplasty including 13 revision THAs, four distal femoral arthroplasties (DFAs), and one revision TKA: of these, one patient developed aseptic loosening and two developed nonunion. Survivorship free from any reoperation was 82% (95% confidence interval (CI) 66.9% to 90.6%) and 77% (95% CI 49.4% to 90.7%) in the ORIF and revision groups at two years, respectively. ORIF patients who went on to union tended to have stemmed knee components and greater mean interprosthetic distance (IPD = 189 mm (SD 73.6) vs 163 mm (SD 36.7); p = 0.546) than nonunited fractures. Patients who went on to nonunion in the revision arthroplasty group had higher medullary diameter: cortical width ratio (2.5 (SD 1.7) vs 1.3 (SD 0.3); p = 0.008) and lower IPD (36 mm (SD 30.6) vs 214 mm (SD 32.1); p < 0.001). At latest follow-up, 95% of patients (n = 72) were ambulatory. CONCLUSION Interprosthetic femur fractures are technically and biologically challenging cases. Individualized approaches to internal fixation versus revision arthroplasty led to an 81% (95% CI 68.3% to 88.6%) survivorship free from reoperation at two years with 95% of patients ambulatory. Continued improvements in management are warranted. Cite this article: Bone Joint J 2021;103-B(7 Supple B):122-128.
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Affiliation(s)
- Meagan E Tibbo
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Afton K Limberg
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Phil Huang
- North Shore Medical Centre, Sydney, Australia
| | - Kevin I Perry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Brandon J Yuan
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Daniel J Berry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
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Mittal A, Poole W, Crone D. Interprosthetic femoral fractures managed with modern distal femoral locking plates: 10 years' experience at a UK major trauma centre. Injury 2021; 52:1918-1924. [PMID: 33892928 DOI: 10.1016/j.injury.2021.04.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/19/2021] [Accepted: 04/05/2021] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Interprosthetic femoral fractures (IFF) are rare but increasing with an ageing population. Operative management is challenging and there is currently a paucity of outcome data in literature. The purpose of this study was to evaluate outcomes of IFFs managed with modern distal femoral locking plates, in a larger sample size than previously published. METHOD This retrospective study reviewed 49 closed IFFs in 48 patients at a major trauma center from 2009 to 2019 occurring between previous total hip arthroplasty (n=38), hemi hip arthroplasty (n=3), dynamic hip screw (n=6) or cephalomedullary nail (n=2) and total knee arthroplasty. They were managed with Minimally Invasive Plate Osteosynthesis (MIPO) employing modern biological fixation techniques and stabilised with VA-LCP Condylar (Synthes; n=28) or Peri-Loc (S&N; n=21) plate. Clinical and radiographic outcomes were measured. RESULTS The majority of fractures were in female patients (80%), who were elderly (average 83 years), and comorbid (55% ASA grade 3 or 4). Most fractures were Pires type IIA and OTA/AO type 33A. Average plate spanning femur was 16 holes, with average working length of 6 holes. 86% had unrestricted weight bearing immediately post operatively. 31 fractures reached radiological (n=25) or clinical (n=6) union. 13 patients died with 2 lost to follow up. There were 3 non-unions, with implant failure occurring before 4 months in all 3. We present a union rate of 91% (n=31/34). CONCLUSION IFFs are occurring with increasing frequency in a frail elderly population. In patients with IFFs, MIPO and biological fixation techniques using modern distal femoral locking plates can achieve high rate of union when combined with immediate unrestricted weight bearing postoperatively.
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Affiliation(s)
- Aaina Mittal
- Royal Sussex County Hospital, Eastern Road, Brighton, BN2 5BE, UK.
| | - William Poole
- Royal Sussex County Hospital, Eastern Road, Brighton, BN2 5BE, UK
| | - David Crone
- Royal Sussex County Hospital, Eastern Road, Brighton, BN2 5BE, UK
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15
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Heidenreich MJ, Tetreault MW, Lewallen DG, Perry KI, Hanssen AD, Abdel MP. Total Femur Antibiotic Spacers: Effective Salvage for Complex Periprosthetic Joint Infections. J Arthroplasty 2021; 36:2567-2574. [PMID: 33745797 DOI: 10.1016/j.arth.2021.02.072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/17/2021] [Accepted: 02/25/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND A simultaneous periprosthetic joint infection (PJI) of an ipsilateral hip and knee arthroplasty is a challenging complication of lower extremity reconstructive surgery. We evaluated the use of total femur antibiotic-impregnated polymethylmethacrylate (PMMA) bone cement spacers in the staged treatment of such limb-threatening PJIs. METHODS Thirteen patients were treated with a total femur antibiotic spacer. The mean age at the time of spacer placement was 65 years. Nine patients had polymicrobial PJIs. All spacers incorporated vancomycin (3.0 g/40 g PMMA) and gentamicin (3.6 g/40 g PMMA), while 8 also included amphotericin (150 mg/40 g PMMA). Eleven spacers were biarticular. Twelve spacers were implanted through one longitudinal incision, while 8 of 12 reimplantations occurred through 2 smaller, separate hip and knee incisions. Mean follow-up after reimplantation was 3 years. RESULTS Twelve (92%) patients underwent reimplantation of a total femur prosthesis at a mean of 26 weeks. One patient died of medical complications 41 days after spacer placement. At latest follow-up, 3 patients had experienced PJI recurrence managed with irrigation and debridement. One required acetabular component revision for instability. All 12 reimplanted patients retained the total femur prosthesis with no amputations. Eleven (91%) were ambulatory, and 7 (58%) remained on suppressive antibiotics. CONCLUSION Total femur antibiotic spacers are a viable, but technically demanding, limb-salvage option for complex PJIs involving the ipsilateral hip and knee. In the largest series to date, there were no amputations and 75% of reimplanted patients remained infection-free. Radical debridement, antimicrobial diversity, prolonged spacer retention, and limiting recurrent soft tissue violation are potential tenets of success. LEVEL OF EVIDENCE IV.
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Affiliation(s)
| | | | | | - Kevin I Perry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN
| | - Arlen D Hanssen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN
| | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN
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Miotti G, Schlummer T. [Complex periprosthetic combination injury : Periprosthetic, interprosthetic and patellar fractures in an aged person]. Unfallchirurg 2021; 124:1018-1023. [PMID: 33755763 DOI: 10.1007/s00113-021-00993-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/25/2021] [Indexed: 11/28/2022]
Abstract
Due to the demographic trend and the rising number of implanted joint prostheses, the incidence of periprosthetic fractures is going to increase in the future.This article describes the case of an aged person with a very unusual combination of periprosthetic and interprosthetic fractures with an inlying cementless total hip replacement and total knee replacement.By complying with the treatment strategies recommended for the respective individual injuries and the use of a geriatric trauma algorithm, it is even possible to successfully treat such a case.In addition to the unusual injury constellation, especially the surgical and geriatric traumatological treatment strategy are presented.
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Affiliation(s)
- Giovanni Miotti
- Josephs Hospital Warendorf, Am Krankenhaus 2, 48231, Warendorf, Deutschland.
| | - Timm Schlummer
- Josephs Hospital Warendorf, Am Krankenhaus 2, 48231, Warendorf, Deutschland
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17
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Patsiogiannis N, Kanakaris NK, Giannoudis PV. Periprosthetic hip fractures: an update into their management and clinical outcomes. EFORT Open Rev 2021; 6:75-92. [PMID: 33532088 PMCID: PMC7845569 DOI: 10.1302/2058-5241.6.200050] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The Vancouver classification is still a useful tool of communication and stratification of periprosthetic fractures, but besides the three parameters it considers, clinicians should also assess additional factors. Combined advanced trauma and arthroplasty skills must be available in departments managing these complex injuries. Preoperative confirmation of the THA (total hip arthroplasty) stability is sometimes challenging. The most reliable method remains intraoperative assessment during surgical exploration of the hip joint. Certain B1 fractures will benefit from revision surgery, whilst some B2 fractures can be effectively managed with osteosynthesis, especially in frail patients. Less invasive osteosynthesis, balanced plate–bone constructs, composite implant solutions, together with an appropriate reduction of the limb axis, rotation and length are critical for a successful fixation and uneventful fracture healing.
Cite this article: EFORT Open Rev 2021;6:75-92. DOI: 10.1302/2058-5241.6.200050
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Affiliation(s)
| | - Nikolaos K Kanakaris
- Department of Trauma and Orthopaedics, Leeds General Infirmary, Leeds, UK.,NIHR Leeds Biomedical Research Center, Chapel Allerton Hospital, Leeds, UK
| | - Peter V Giannoudis
- Department of Trauma and Orthopaedics, Leeds General Infirmary, Leeds, UK.,NIHR Leeds Biomedical Research Center, Chapel Allerton Hospital, Leeds, UK
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18
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Kamal A, Dong RJ, Shah R, Li C. Management of periprosthetic fractures of knee arthroplasty with revision surgery. J Orthop 2020; 22:118-123. [PMID: 32322141 DOI: 10.1016/j.jor.2020.03.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 03/29/2020] [Indexed: 10/24/2022] Open
Abstract
Objective As periprosthetic knee fractures are becoming common with the increase in incidence of primary and revision total knee arthroplasty, their management and treatment have become important. The current study aims to evaluate the revision knee arthroplasty carried out due to the failure of primary treatment of periprosthetic femoral fractures. Methods The study was conducted from May 2012 to September 2019 at Orthopedics department of Xinjiang Medical University; out of 21 patients 11 were women and 10 men aged 44 to 80 (mean, 70.76 ± 8.31) years who underwent revision surgery for periprosthetic fractures of 19 distal femur, 1 patellar, and 1 proximal tibial fracture. Nineteen cases had definite trauma history leading to periprosthetic fracture, and 2 cases had fracture during post-operative functional exercise. All patients had revision surgery with extended stems with either constrained or limited condylar knee prosthesis. Results The duration of follow-up averaged 4.3 years. The Hospital for Special Surgery (HSS) knee score before fracture averaged 91 + 7.01 points (89-95 points) and 85.5 + 6.18 points (81-90 points) at the last follow-up. The average range of motion of knee joint before fracture was 115.7 [+7.6] (110 [~126]), and 101.3 [+9.8] (85 [~115]) at the last follow-up. There was no significant statistical difference. No complications such as infection, component loosening or nonunion. 2 patients had lower extremity vein thrombosis. Conclusion Revision surgery of the knee for the periprosthetic fractures with proper prosthetic selection can attain good outcomes after primary total knee arthroplasty. Reasonable and correct procedure is the main principle for a successful operation. The benefits and applicability of revision TKA is the reconstructive solution for the issues of prosthetic knee fractures, is highly recommended.
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Affiliation(s)
- Ahmad Kamal
- Department of Orthopedics, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Ren Jiang Dong
- Department of Orthopedics, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Rafiq Shah
- Department of Orthopedics, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Cao Li
- Department of Orthopedics, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
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Rozell JC, Delagrammaticas DE, Schwarzkopf R. Interprosthetic femoral fractures: management challenges. Orthop Res Rev 2019; 11:119-128. [PMID: 31572021 PMCID: PMC6754334 DOI: 10.2147/orr.s209647] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 08/14/2019] [Indexed: 11/23/2022] Open
Abstract
Interprosthetic femur fractures are a rare but serious complication following total hip and knee arthroplasty. Classification systems have focused not only on diagnosis but also on treatment algorithm. Critical to the evaluation of patients with these fractures are an assessment of fracture location, bone quality, and the presence of stemmed implants. The gold standard for fracture fixation is locked plating with bicortical and unicortical screws, supplemented with wires or cables as needed. For patients with compromised bone stock or insufficient bony area for fixation, allograft augmentation with struts or interprosthetic sleeves may be used. For fractures with severe bone loss, conversion to a megaprosthesis or total femur replacement may be warranted.
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Affiliation(s)
- Joshua C Rozell
- Department of Orthopaedic Surgery, NYU Langone Orthopaedic Hospital, New York, NY, USA
| | | | - Ran Schwarzkopf
- Department of Orthopaedic Surgery, NYU Langone Orthopaedic Hospital, New York, NY, USA
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Jennison T, Yarlagadda R. Outcome of surgical treatment of inter prosthetic fractures: A case series. Orthop Traumatol Surg Res 2019; 105:587-589. [PMID: 30745036 DOI: 10.1016/j.otsr.2018.08.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 08/20/2018] [Accepted: 08/31/2018] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Interprosthetic fractures occur between a total knee replacement and a femoral stem of either a hemiarthroplasty or total hip replacement. The number of interprosthetic fractures will increase as the number of joint replacements rises. There is currently a paucity of literature looking at the outcomes of interprosthetic fractures. Therefore, we performed a retrospective study to: (1) determine fracture union in patients following surgical treatment of a femoral interprosthetic fracture, (2) measure outcomes included mortality and complications. HYPOTHESIS Favoring bone fixation instead of prosthetic revision gives an acceptable rate of reoperation. MATERIALS AND METHODS A retrospective case note review of all interprosthetic femoral fractures admitted to a tertiary trauma centre over a 7-year period. There were 24 patients (4 males and 20 females) with a mean age of 82.3 (65-98). The initial operative procedure was a total hip replacement (THR) and a total knee replacement (TKR) in 19 patients, one THR and revision TKR, four hip hemiarthroplasty and TKR. There were 23 cemented femoral stems, and 1 uncemented femoral stem. The median time to surgery was 84hours. The median length of hospital stay was 16 days. Nineteen patients underwent open reduction internal fixation and 1 of these used a strut graft. Two patients underwent revision knee replacements and 3 underwent a revision hip replacement. All patients had at least 2 years clinical follow-up. RESULTS One patient died within 30 days of fracture, leaving 23 patients to assess bone union. Another patient died within 1 year of fracture. Three out of 24 patients (12.5%) suffered a complication that required further surgery. The fracture united in 19/23 (82.6%) of patients and the 2-year mortality rate was 5/24 (20.8%). DISCUSSION Interprosthetic fractures are complex fractures occurring in elderly patients with multiple medical comorbidities. Whenever possible bone fixation instead of prostehtic revision give a low rate of complication and reoperation. The surgical treatments are complex, but with a well-performed surgical technique and an adequate rehabilitation program can result in satisfactory outcomes. LEVEL OF EVIDENCE IV, retrospective case series.
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Affiliation(s)
- Toby Jennison
- Plymouth Hospitals NHS Trust, Derriford Road, Crownhill, Plymouth, Devon PL6 8DH, United Kingdom.
| | - Rathan Yarlagadda
- Plymouth Hospitals NHS Trust, Derriford Road, Crownhill, Plymouth, Devon PL6 8DH, United Kingdom
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Reliability of the commonly used classification systems for interprosthetic fractures. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2019; 29:1069-1072. [DOI: 10.1007/s00590-019-02393-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 02/04/2019] [Indexed: 10/27/2022]
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Tosounidis TH, Giannoudis PV. Osteosynthesis of interprosthetic fractures: Evidence and recommendations. Injury 2018; 49:2097-2099. [PMID: 30526919 DOI: 10.1016/j.injury.2018.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Theodoros H Tosounidis
- Department of Orthopaedic Surgery, University Hospital of Heraklion, 71110 Heraklion, Crete, Greece.
| | - Peter V Giannoudis
- Academic Department of Trauma and Orthopaedics, Leeds Teaching Hospitals, School of Medicine, University of Leeds, Leeds, United Kingdom; NIHR Leeds Biomedical Research Center, Chapel Allerton Hospital, Leeds, United Kingdom.
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Abstract
Periprosthetic fractures after total knee arthroplasty (TKA) can present reconstructive challenges. Not only is the procedure technically complex, but patients with these fractures may have multiple comorbidities, making them prone to postoperative complications. Early mobilization is particularly beneficial in patients with multiple comorbidities. Certain patient factors and fracture types may make revision TKA the ideal management option. Periprosthetic fractures around the knee implant occur most frequently in the distal femur, followed by the tibia and the patella. Risk factors typically are grouped into patient factors (eg, osteoporosis, obesity) and surgical factors (eg, anterior notching, implant malposition). Surgical options for periprosthetic fractures that involve the distal femur or proximal tibia include reconstruction of the bone stock with augments or metal cones or replacement with an endoprosthesis.
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