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Hong SH, Han SB. Midterm Comparative Analysis of Short Femoral Stem Survivorship in Dorr Type A Femurs. Clin Orthop Surg 2024; 16:201-209. [PMID: 38562642 PMCID: PMC10973610 DOI: 10.4055/cios23268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 04/04/2024] Open
Abstract
Background Proximal-distal mismatch has emerged as a prominent concern in Dorr type A femoral morphology, prompting the exploration of short stems as promising alternatives to conventional stems. This study aimed to evaluate clinical and radiographic outcomes of total hip arthroplasty (THA) using short femoral stems in Dorr type A proximal femoral morphology with a minimum follow-up of 5 years. Methods Patients with short femoral stems in Dorr type A between 2011 and 2017 were included. Patients with the Short Modular Femoral (SMF) stem and Metha stem were recruited and patients with a shortened tapered stem (Tri-Lock BPS) were matched by propensity score matching based on age, sex, body mass index, calcar to canal ratio, and diagnosis. Patient-reported outcomes and the presence of thigh pain were assessed at 5 years postoperatively. Revision rate, complication rate, and radiographic outcomes were also assessed and compared. Results Twenty-two cases (81%) in the SMF stem and 43 cases (65%) in the Metha stem had more than 5 years of follow-up data available. The SMF stem showed a higher failure rate than the other 2 groups, with 18% requiring revision surgery in the SMF stem compared to 4.6% in the Metha stem, and 2.3% in the Tri-Lock BPS. The SMF stem showed considerable complications such as stem position change and lateral cortical hypertrophy with inferior clinical outcomes than the other 2 stem groups. When the Metha stem and the Tri-Lock BPS groups were compared, more intraoperative fractures were observed in the Metha stem, whereas stress shielding and anterior thigh pain were significantly more prevalent in the Tri-Lock BPS. Conclusions The SMF stem might be less reliable than previously reported, showing a high failure rate and increased radiologic complications. Thus, its use for THA in Dorr Type A femurs needs caution. On the other hand, the Metha stem showed comparable outcomes to the shortened tapered Tri-Lock BPS.
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Affiliation(s)
- Seok Ha Hong
- Department of Orthopedic Surgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Seung Beom Han
- Department of Orthopedic Surgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
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Zhao G, Liu Y, Zheng Y, An M, Zhang J, Zhang J, Li Z, Chunbao L. Exploring molecular mechanisms of intra-articular changes in osteonecrosis of femoral head using DIA proteomics and bioinformatics. J Orthop Surg Res 2024; 19:13. [PMID: 38169408 PMCID: PMC10763026 DOI: 10.1186/s13018-023-04464-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024] Open
Abstract
PURPOSE This study is aimed to delve into the crucial proteins associated with hormonal osteonecrosis of the femoral head (ONFH) and its intra-articular lesions through data-independent acquisition (DIA) proteomics and bioinformatics analysis. METHODS We randomly selected samples from eligible ONFH patients and collected samples from the necrotic area of the femoral head and load-bearing cartilage. The control group comprised specimens from the same location in patients with femoral neck fractures. With DIA proteomics, we quantitatively and qualitatively tested both groups and analyzed the differentially expressed proteins (DEPs) between groups. Additionally, we enriched the analysis of DEP functions using gene ontology terms and Kyoto Encyclopedia of Genes and Genomes pathways and verified the key proteins in ONFH through Western blot. RESULTS Proteomics experiment uncovered 937 common DEPs (422 upregulated and 515 downregulated) between the two groups. These DEPs mainly participate in biological processes such as hidden attributes, catalytic activity, molecular function regulators, and structural molecule activity, and in pathways such as starch and sucrose metabolism, ECM-receptor interaction, PI3K-Akt signaling, complement and coagulation cascades, IL-17 signaling, phagosome, transcriptional misregulation in cancers, and focal adhesion. Through protein-protein interaction network target gene analysis and Western blot validation, we identified C3, MMP9, APOE, MPO, LCN2, ELANE, HPX, LTF, and THBS1 as key proteins in ONFH. CONCLUSIONS With DIA proteomics and bioinformatics analysis, this study reveals the molecular mechanisms of intra-articular lesions in ONFH. A correlation in the necrotic area and load-bearing cartilage of ONFH at ARCO stages IIIB-IV as well as potential key regulatory proteins was identified. These findings will help more deeply understand the pathogenesis of ONFH and may provide important clues for seeking more effective treatment strategies.
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Affiliation(s)
- Gang Zhao
- Department of Orthopedics, the No.4 Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China
- Department of Orthopaedics, Chinese PLA 984 Hospital, Beijing, 100029, China
- Medical school of Chinese PLA, Beijing, 100853, China
| | - Yujie Liu
- Department of Orthopedics, the No.4 Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China
| | - Yongjun Zheng
- Department of Orthopaedics, Chinese PLA 984 Hospital, Beijing, 100029, China
| | - Mingyang An
- Department of Orthopedics, the No.4 Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China
| | - Jia Zhang
- Department of Orthopedics, the No.4 Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China
| | - Jing Zhang
- Department of Orthopedics, the No.4 Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China
| | - Zhongli Li
- Department of Orthopedics, the No.4 Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China
| | - Li Chunbao
- Department of Orthopedics, the No.4 Medical Centre, Chinese PLA General Hospital, Beijing, 100048, China.
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Girardot G, Guy S, Bonin N. No significant differences in 60-day postoperative complication rates between conventional and shortened stems. J Exp Orthop 2023; 10:149. [PMID: 38153605 PMCID: PMC10754806 DOI: 10.1186/s40634-023-00696-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 11/14/2023] [Indexed: 12/29/2023] Open
Abstract
PURPOSE To compare 60-day complication rates, radiographic outcomes, and clinical outcomes following primary THA with conventional versus shortened stems, in a large cohort study. METHODS The authors reviewed a consecutive series of 800 primary THAs, of which 781 met the inclusion/exclusion criteria: 395 received a conventional stem and 386 received a shortened stem. Intraoperative and postoperative complications were noted. Radiographic and clinical assessments were performed preoperatively and 60 days after surgery. RESULTS Compared to conventional stems, shortened stems had significantly less intraoperative complications (2.8% vs 0.3%, p = 0.006), but no significant differences in complications that did not require reoperation (1.0% vs 1.3%, p = 0.620), complications that required reoperation without stem revision (2.0% vs 1.0%, p = 0.384), and complications that required stem revision (0.5% vs 0.5%, p = 1.000). Four hips (two from each group) required stem revision and were thus excluded from 60-day assessment. There were no significant differences between groups in subsidence ≥ 3 mm (1.0% vs 0.5%, p = 0.686), alignment (90.3%vs 86.7%, p = 0.192), net change in offset (within 3 mm, 32.3% vs 30.5%, p = 0.097), and limb length discrepancy (3.0 ± 2.6 mm vs 2.9 ± 2.4 mm, p = 0.695). Compared to conventional stems, shortened stems had significantly better preoperative mHHS (56.5 ± 18.5 vs 64.5 ± 13.5, p < 0.001), and significantly lower net improvement in mHHS (29.9 ± 17.1 vs 24.4 ± 15.0, p < 0.001), but no significant differences in postoperative mHHS (87.3 ± 11.9 vs 89.4 ± 9.6, p = 0.109). CONCLUSIONS There were no significant differences between conventional and shortened stems in terms of postoperative complication rates, radiographic outcomes, and postoperative mHHS. However, patients implanted with shortened stems had less intraoperative complications, but lower net improvement in mHHS. LEVEL OF EVIDENCE Level IV, Retrospective comparative cohort study.
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Affiliation(s)
- Guillaume Girardot
- Lyon Ortho Clinic, Clinique de La Sauvegarde, Ramsay Santé, 29B Avenue Des Sources, Lyon, France
| | - Sylvain Guy
- Lyon Ortho Clinic, Clinique de La Sauvegarde, Ramsay Santé, 29B Avenue Des Sources, Lyon, France
| | - Nicolas Bonin
- Lyon Ortho Clinic, Clinique de La Sauvegarde, Ramsay Santé, 29B Avenue Des Sources, Lyon, France.
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Thorey F, Floerkemeier T, Windhagen H. [Short hip stem for THA in avascular necrosis of the femoral head]. ORTHOPADIE (HEIDELBERG, GERMANY) 2022; 51:815-821. [PMID: 36069911 DOI: 10.1007/s00132-022-04304-y] [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: 08/09/2022] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Osteonecrosis of the femoral head or avascular necrosis of the femoral head (HKN) is a complex disease that, without treatment, leads to infraction of the femoral head in most cases. In these cases, only replacement of the hip joint will help, although there is no clear recommendation of an arthroplasty type. In the last two decades, the treatment of primary and secondary coxarthrosis with short-shaft prostheses with different anchoring philosophies has increased. Since short-shaft fitting is a possible option especially in younger patients, the question arises about possible fittings of advanced HKN with these stem types, especially with metaphyseal anchorage. The aim of this study was to review the existing literature on the results of short stem prosthesis in HKN and to present the advantages and disadvantages of short stem prosthesis in osteonecrosis of the femoral head. MATERIAL AND METHODS This review analyzes the existing studies on short stem arthroplasty for HKN. RESULTS Only a few studies exist that have analyzed clinical and radiologic outcomes of short stem replacement in HKN. CONCLUSION The existing short- and medium-term results show mostly good outcomes. However, it is difficult to draw a general conclusion due to differences in stem design and fixation. Short stems with primary diaphyseal fixation do not show an increased risk of failed osseointegration or loosening. Constructions with primary metaphyseal fixation should undergo MRI to rule out the possibility of necrosis extending beyond the femoral neck.
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Affiliation(s)
- F Thorey
- Internationales Zentrum für Orthopädie, ATOS Klinik Heidelberg, Bismarckstr. 9-15, 69115, Heidelberg, Deutschland.
| | - T Floerkemeier
- go:h (Gelenkchirurgie Orthopädie Hannover), Hannover, Deutschland
| | - H Windhagen
- Orthopädische Klinik, Medizinische Hochschule Hannover (MHH) im DIAKOVERE Annastift, Hannover, Deutschland
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Drobniewski M, Synder M, Synder MA, Krasińska M, Olewnik L, Borowski A. Future of total hip arthroplasty with the Metha short stem in modern surgeries. Sci Rep 2021; 11:21763. [PMID: 34741121 PMCID: PMC8571394 DOI: 10.1038/s41598-021-01367-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 10/25/2021] [Indexed: 12/02/2022] Open
Abstract
The aim of the study was to analyse the results of uncemented total hip replacement, using the Metha (metaphyseal) stem. A total of 158 patients (70 females and 88 males) were qualified to the study and submitted to total hip arthroplasty (183 procedures altogether), using the Metha stem. The mean age of the patients on the day of surgery was 51.7 years (the range from 17 to 69 years). The mean follow up period was 9.2 years (the range from 5 to 13.5 years). Preoperative assessments gave poor scores, according to the Merle d’Aubigne and Postel classification, modified by Charnley. The average improvement after surgery, according to the used scale, was 6.9 points. A very good outcome was recorded in 154 cases (84.2%), a good outcome was achieved in 20 cases (10.9%) and a poor outcome was confirmed in 9 cases, while no satisfactory case was observed. Poor outcomes were associated with implant loosening. Extraskeletal ossification was noted in 10 cases (5.5%). According to the Kaplan–Meier estimator, the 10-year survival was 93.2% and 97.3% for the whole implant and the stem alone, respectively. 1. Our follow-up period of more than 9 years on the average, indicates that Metha stems produce excellent clinical and functional results in operated young patients with advanced degenerative changes of the hip joint. 2. Assuming a proper qualification for the procedure, the absence of complications and a correct surgical technique, which is slightly more difficult, when compared to standard stem implantation, the risk of aseptic loosening is fairly negligible.
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Affiliation(s)
- Marek Drobniewski
- Orthopaedics and Paediatric Orthopaedics Department, Medical University of Lodz, ul. Pomorska 251, 92-213, Lodz, Poland
| | - Marek Synder
- Orthopaedics and Paediatric Orthopaedics Department, Medical University of Lodz, ul. Pomorska 251, 92-213, Lodz, Poland
| | - Marek Aleksander Synder
- Orthopaedics and Paediatric Orthopaedics Department, Medical University of Lodz, ul. Pomorska 251, 92-213, Lodz, Poland
| | - Magdalena Krasińska
- Orthopaedics and Paediatric Orthopaedics Department, Medical University of Lodz, ul. Pomorska 251, 92-213, Lodz, Poland
| | - Lukasz Olewnik
- Department of Anatomical Dissection and Donation, Medical University of Lodz, Lodz, Poland
| | - Andrzej Borowski
- Orthopaedics and Paediatric Orthopaedics Department, Medical University of Lodz, ul. Pomorska 251, 92-213, Lodz, Poland.
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Mid-term results of short versus conventional cementless femoral stems in patients with bilateral osteonecrosis of the femoral head. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2021; 32:47-53. [PMID: 33710403 DOI: 10.1007/s00590-021-02924-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 03/02/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND This study aimed to compare the clinical and radiographic mid-term results between short and conventional stems. METHODS Patients with bilateral osteonecrosis of the femoral head (ONFH) who had undergone bilateral staged THAs using short stem in one hip and conventional stem in the contralateral hip were included. The Harris Hip Score (HHS), thigh pain, patient's joint perception (PJP) and patients' preferred hip were recorded. Using x-ray, osseointegration and stress shielding were analyzed and compared between stems. RESULTS There were 35 cases (70 hips) with the mean age of 46.3 years (25-63), and the mean follow-up was 75.1 months (60-108). HHS was significantly improved in both short and conventional groups (p < 0.001). There was mild thigh pain in 2 cases (5.7%) of the short stem group and 6 cases (17.1%) of the conventional group. With regard to the PJP, we found slightly more natural joint feeling in the short stem group. Of the patients' preferred hip, 11 cases (31.4%) preferred short stem hip and 6 cases (17.1%) preferred conventional stem hip. The short stem group showed osseointegration mainly in the proximal part. The conventional stem group showed osseointegration mainly in the distal part. We found stress shielding grade 1 in 31 cases (88.6%) and grade 2 in 3 cases (8.6%) in the conventional stem group, whereas only grade 1 in 34 cases (97.1%) in the short stem group. CONCLUSIONS The clinical results were promising in both short and conventional stems; however, short stem showed less thigh pain, slightly more natural joint feeling (PJP) and more patients' preferred hip. The short stem provided more favorable results for proximal load transfer and slightly less stress shielding.
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