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Assi C, Otayek J, Mansour J, Daher J, Caton J, Samaha C, Yammine K. Outcomes of total hip arthroplasty using dual mobility cups following failed internal fixation of proximal femoral fractures at a mean follow-up of 6 years. SICOT J 2024; 10:3. [PMID: 38240729 PMCID: PMC10798229 DOI: 10.1051/sicotj/2023038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/09/2023] [Indexed: 01/22/2024] Open
Abstract
INTRODUCTION Performing total hip arthroplasty (THA) after failed internal fixation of proximal femoral fractures (PFF) is known to be associated with high rates of complications. Dual mobility cups (DMC) are known to lower dislocation events in high-risk patients. Very few reports investigated the outcomes of THA using DMC following failure of internal fixation for PFF. METHODS This is a retrospective monocentric continuous study of 31 patients who underwent THA with DMC after failed internal fixation of PFF. The clinical assessment was based on the modified Harris hip score (mHHS) at the last follow-up. The complication rates and radiological analyses were recorded. RESULTS The mean follow-up period was 5.96 ± 4.2 years. At the last follow-up, the mean mHHS was 92.9 ± 9.1 with 71% of the patients describing their operated hip as a forgotten hip. No dislocation or aseptic loosening events were noted. One patient developed a septic loosening of the implant. No significant radiological changes were recorded. Sixteen stems (51.6%) were placed in a neutral position, 13 (42%) in valgus (2.74 ± 1.72°), and 2 (6.4%) in varus (6.94 ± 2.02°). CONCLUSION This study emphasizes the advantage of using DMC following failed internal fixation of PFF in reducing dislocation and complication events in this high-risk population.
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Affiliation(s)
- Chahine Assi
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine Beirut Lebanon
- Center of Evidence-based Anatomy, Sports & Orthopedic Research Beirut Lebanon
| | - Joeffroy Otayek
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine Beirut Lebanon
| | - Jad Mansour
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine Beirut Lebanon
| | - Jimmy Daher
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine Beirut Lebanon
| | | | - Camille Samaha
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine Beirut Lebanon
| | - Kaissar Yammine
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine Beirut Lebanon
- Institut de Chirurgie Orthopédique Lyon France
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Zampogna B, Papalia GF, Ferrini A, Torre G, Vorini F, Diaz Balzani LA, Farsetti P, Papalia R. Dual-mobility total hip arthroplasty in patients younger than 55 years old: a systematic review. Arch Orthop Trauma Surg 2023; 143:6821-6828. [PMID: 37062001 DOI: 10.1007/s00402-023-04882-2] [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: 10/17/2022] [Accepted: 04/09/2023] [Indexed: 04/17/2023]
Abstract
Total hip arthroplasty (THA) is regarded as one of the most successful and cost-effective orthopedic procedures. However, THA is a surgical procedure with potential intraoperative and postoperative risks. Dislocation is one of the common postoperative complications and remains one of the main indications for THA revision. The purpose of this systematic review was to evaluate the role and the outcomes of dual-mobility implant to prevent dislocation in patients younger than < 55 years in primary THA. In this systematic review, we included observational, prospective, and retrospective studies that evaluated the outcome and the complications of the dual-mobility cup in < 55-year-old patients. After applying exclusion criteria (femoral neck fractures or THA revision, case series, reviews, and meta-analyses), ten articles were included in the study. The overall number of participants in all the studies was 1530. The mean age of the participants was 50 years. The mean follow-up was 11.7 years. A total of 46 patients (2.7%) reported intraprosthetic dislocations, in which the polyethylene liner dissociates from the femoral head, while 4.8% of revision was due to aseptic loosening. The mean revision rate at twelve years was 11%. The mean value of Harris Hip Score increased from 50.9 pre-operatively to 91.6 after surgery. Dual mobility is a valid option for young patients with extended survivorship and low rates of instability and dislocation after primary THA.
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Affiliation(s)
- Biagio Zampogna
- Department of Orthopaedic and Trauma Surgery, Università Campus Bio-Medico Di Roma, Via Alvaro del Portillo, 21-00128, Rome, Italy
- Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200-00128, Rome, Italy
| | - Giuseppe Francesco Papalia
- Department of Orthopaedic and Trauma Surgery, Università Campus Bio-Medico Di Roma, Via Alvaro del Portillo, 21-00128, Rome, Italy.
- Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200-00128, Rome, Italy.
| | - Augusto Ferrini
- Department of Clinical Science and Translational Medicine, Section of Orthopaedics and Traumatology, University of Rome "Tor Vergata", Rome, Italy
| | - Guglielmo Torre
- Department of Orthopaedic and Trauma Surgery, Università Campus Bio-Medico Di Roma, Via Alvaro del Portillo, 21-00128, Rome, Italy
- Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200-00128, Rome, Italy
| | - Ferruccio Vorini
- Department of Orthopaedic and Trauma Surgery, Università Campus Bio-Medico Di Roma, Via Alvaro del Portillo, 21-00128, Rome, Italy
- Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200-00128, Rome, Italy
| | - Lorenzo Alirio Diaz Balzani
- Department of Orthopaedic and Trauma Surgery, Università Campus Bio-Medico Di Roma, Via Alvaro del Portillo, 21-00128, Rome, Italy
- Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200-00128, Rome, Italy
| | - Pasquale Farsetti
- Department of Clinical Science and Translational Medicine, Section of Orthopaedics and Traumatology, University of Rome "Tor Vergata", Rome, Italy
| | - Rocco Papalia
- Department of Orthopaedic and Trauma Surgery, Università Campus Bio-Medico Di Roma, Via Alvaro del Portillo, 21-00128, Rome, Italy
- Research Unit of Orthopaedic and Trauma Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200-00128, Rome, Italy
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Gardner A, Macdonald H, Evans JT, Sayers A, Whitehouse MR. Survivorship of the dual-mobility construct in elective primary total hip replacement: a systematic review and meta-analysis including registry data. Arch Orthop Trauma Surg 2023; 143:5927-5934. [PMID: 36799995 PMCID: PMC10449688 DOI: 10.1007/s00402-023-04803-3] [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: 06/10/2022] [Accepted: 01/27/2023] [Indexed: 02/18/2023]
Abstract
INTRODUCTION Dislocation is a common complication associated with total hip replacement (THR). Dual-mobility constructs (DMC-THR) may be used in high-risk patients and have design features that may reduce the risk of dislocation. We aimed to report overall pooled estimates of all-cause construct survival for elective primary DMC-THR. Secondary outcomes included unadjusted dislocation rate, revision for instability, infection and fracture. METHODS MEDLINE, EMBASE, Web of Science, Cochrane Library and National Joint Registry reports were systematically searched (CRD42020189664). Studies reporting revision (all-cause) survival estimates and confidence intervals by brand and construct including DMC bearings were included. A meta-analysis was performed weighting series by the standard error. RESULTS Thirty-seven studies reporting 39 case series were identified; nine (10,494 DMC-THR) were included. Fourteen series (23,020 DMC-THR) from five national registries were included. Pooled case series data for all-cause construct survival was 99.7% (95% CI 99.5-100) at 5 years, 95.7% (95% CI 94.9-96.5) at 10 years, 96.1% (95% CI 91.8-100) at 15 years and 77% (95% CI 74.4-82.0) at 20 years. Pooled joint registry data showed an all-cause construct survivorship of 97.8% (95% CI 97.3-98.4) at 5 years and 96.3% (95% CI 95.6-96.9) at 10 years. CONCLUSIONS Survivorship of DMC-THR in primary THR is acceptable according to the national revision benchmark published by National Institute for Clinical Excellence (NICE).
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Affiliation(s)
- Andrew Gardner
- Translational Health Sciences, University of Bristol, Bristol, UK
| | - Hamish Macdonald
- Translational Health Sciences, University of Bristol, Bristol, UK
| | - Jonathan T. Evans
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, Southmead Hospital, Bristol, UK
| | - Adrian Sayers
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, Southmead Hospital, Bristol, UK
| | - Michael R. Whitehouse
- Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, Southmead Hospital, Bristol, UK
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Waseem S, Fong DTP, Onsa M, Khan W, Singh S. Dual Mobility Total Hip Replacements in Young Patients- A Systematic Review. Indian J Orthop 2023; 57:203-210. [PMID: 36777127 PMCID: PMC9880113 DOI: 10.1007/s43465-022-00787-1] [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: 07/21/2022] [Accepted: 11/27/2022] [Indexed: 01/04/2023]
Abstract
Background There is little consensus on outcomes of dual Mobility total hip replacement (DM-THR) in younger patients. We performed a systematic review to examine this. Methods A systematic review of all observational studies and randomised controlled trials of patients under 70 with primary DM-THR in MEDLINE, EMBASE, Pubmed, Cochrane was performed according to PRISMA guidelines. Collected data included demographics, revision, dislocation and infection rates and functional scores. Results Twelve papers studying 738 DM-THR in 664 patients were included. The mean patient age was 46.9 years (13.5-69.0), with 319 (48.0%) being female and 419 (52.0%) being male. After an average follow-up of 90.0 months (1-371 months), the revision rate was 12.7% (84 hips), 0 dislocations were reported but 2.5% (15 hips) underwent intra-prosthetic dislocation. 32.1% hip revisions were due to aseptic loosening. Conclusion Limited literature surrounding the use of DM-THR suggests favourable stability but higher revision rates than conventional THR.
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Affiliation(s)
- Saima Waseem
- Department of Trauma and Orthopaedics, North West Anglia NHS Foundation Trust, Cambridgeshire, UK
| | - Daniel T. P. Fong
- National Centre for Sport and Exercise Medicine, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Mohammed Onsa
- Department of Trauma and Orthopaedics, North West Anglia NHS Foundation Trust, Cambridgeshire, UK
| | - Wasim Khan
- Department of Trauma and Orthopaedics, Addenbrooke’s Hospital, Cambridge, UK
| | - Sarvpreet Singh
- Department of Trauma and Orthopaedics, North West Anglia NHS Foundation Trust, Cambridgeshire, UK
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Moon NH, Do MU, Kim JS, Seo JS, Shin WC. The usefulness of dual mobility cups in primary total hip arthroplasty patients at a risk of dislocation. Sci Rep 2022; 12:774. [PMID: 35031667 PMCID: PMC8760308 DOI: 10.1038/s41598-022-04774-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 12/30/2021] [Indexed: 11/30/2022] Open
Abstract
This study aimed to evaluate the early results of primary total hip arthroplasty (THA) using dual mobility (DM) cups in patients at a risk of dislocation and compare them with that of fixed bearing (FB) THA. This retrospective study included patients who had undergone primary THA between January 2016 and December 2018 and were at a risk of dislocation. A propensity score-matched analysis was conducted for 63 THA procedures with vitamin-E infused highly cross-linked polyethylene (VEPE) DM bearing and 63 THA procedures performed with FB from the same manufacturer for a mean follow-up period of 3.1 and 3.5 years, respectively. The radiologic outcomes at the last follow-up and incidence of postoperative complications were evaluated and compared statistically between the two groups. The modified Harris hip score (mHHS) was used to assess patient-reported outcomes. Postoperative dislocation occurred in 4 cases (6.3%) in the FB group, but did not occur in the DM group (p = 0.042). There was no difference in the radiologic outcomes and postoperative complications between the two groups. The mHHS at the last follow-up showed satisfactory outcomes in both the groups (DM group, 90.5; FB group, 88.1), without a statistical difference between the groups. The early results of THA using VEPE DM bearing showed better outcomes than that of THA with FB for patients at a risk of dislocation. A longer follow-up period is recommended to assess the stability and overall outcomes.
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Affiliation(s)
- Nam Hoon Moon
- Department of Orthopaedic Surgery, Pusan National University Hospital, Busan, Republic of Korea
| | - Min Uk Do
- Department of Orthopaedic Surgery, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, 20 Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 626-770, Republic of Korea
| | - Jung Shin Kim
- Department of Orthopaedic Surgery, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, 20 Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 626-770, Republic of Korea
| | - Jae Seung Seo
- Department of Orthopaedic Surgery, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, 20 Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 626-770, Republic of Korea
| | - Won Chul Shin
- Department of Orthopaedic Surgery, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, 20 Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 626-770, Republic of Korea.
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Yoshida Y, Yoshida A, Takashima Y, Fujii H. Atraumatic Posterior Hip Dislocation following Short Femoral Nail for Intertrochanteric Fracture Treated by Dual Mobility System in Total Hip Arthroplasty: A Case Report. J Orthop Case Rep 2021; 11:29-32. [PMID: 34557434 PMCID: PMC8422015 DOI: 10.13107/jocr.2021.v11.i05.2192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Introduction Atraumatic hip dislocation after short femoral nail (SFN) fixation for an intertrochanteric fracture is extremely rare. Case Report An 84-year-old woman presented with an atraumatic posterior hip dislocation that occurred 8 years after SFN fixation for an intertrochanteric hip fracture. She experienced an acute-onset left hip pain when standing up from a sitting position while bathing at a day care facility. We performed total hip arthroplasty (THA) with a dual mobility system. During the post-operative THA evaluation, the combined anteversion angle was within the optimum range of 57. However, the dislocation recurred after the THA. During the revision THA, a dual mobility system was used to moderately extend the stem neck. Measures were adopted to strain the posterior soft tissues of the hip joint. We speculated that the posterior hip joint capsule ruptured because the support of the posterior hip joint was weak after the intertrochanteric hip fracture. At the final follow-up visit at 6 months after the operation, the hip joint pain had disappeared, and her activities of daily living recovered to almost the same level as her preinjury activities. Conclusions We should consider the lack of support of posterior soft tissues as a cause of this atraumatic posterior hip dislocation following intertrochanteric fracture fixation.
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Affiliation(s)
- Yasuhisa Yoshida
- Department of Orthopaedic Surgery, Saiseikai Toyama Hospital, 33-1 Kusunoki, Toyama Prefecture, 931-8533, Japan
| | - Akira Yoshida
- Department of Orthopaedic Surgery, Saiseikai Toyama Hospital, 33-1 Kusunoki, Toyama Prefecture, 931-8533, Japan
| | - Yuto Takashima
- Department of Orthopaedic Surgery, Saiseikai Toyama Hospital, 33-1 Kusunoki, Toyama Prefecture, 931-8533, Japan
| | - Hideto Fujii
- Department of Orthopaedic Surgery, Saiseikai Toyama Hospital, 33-1 Kusunoki, Toyama Prefecture, 931-8533, Japan
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Acuña AJ, Courtney PM, Kurtz SM, Lee GC, Kamath AF. Spine Fusions, Yoga Instructors, and Hip Fractures: The Role of Dual Mobility in Primary Total Hip Arthroplasty. J Arthroplasty 2021; 36:S70-S79. [PMID: 33516631 DOI: 10.1016/j.arth.2020.12.057] [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: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Despite the increased use of dual mobility (DM) in primary total hip arthroplasty (THA), debate exists regarding the indications for its use. No specific algorithm exists to guide this decision-making process. Therefore, the purpose of this article is to summarize the currently available literature regarding the use of DM in primary THA and provide evidence-based guidelines based on specific patient populations and risk factors for instability. METHODS We reviewed the current literature for studies evaluating risk factors for dislocation in primary THA, as well as the clinical use and results of DM in primary THA. Based on the strength of the literature, we discuss the use of DM in specific patient populations. We provide a decision-making algorithm to determine whether a patient may be indicated for DM in primary THA. RESULTS Surgeons should consider preoperative patient demographics, risk factors for instability (eg, significant hip-spine issues), type of procedure to be performed (eg, conversion arthroplasty), and indications for surgery (eg, THA for femoral neck fracture). Based on this algorithmic assessment, DM may be warranted in the primary THA setting if a patient's combined risk reaches an established threshold based on the literature. CONCLUSION This evidence-based algorithm may help guide current practice in the use of DM in primary THA. We advocate the continued judicious use of DM in hip arthroplasty. Longer term studies are needed in order to evaluate the durability of DM, as well as any complications related to the DM articulation.
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Affiliation(s)
- Alexander J Acuña
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - P Maxwell Courtney
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Steven M Kurtz
- Implant Research Center, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, Pennsylvania; Biomedical Engineering Practice, Exponent Inc, Menlo Park, California
| | - Gwo-Chin Lee
- Department of Orthopaedic Surgery, University of Pennsylvania, Penn Musculoskeletal Center, Philadelphia, Pennsylvania
| | - Atul F Kamath
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
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Pai FY, Ma HH, Chou TFA, Huang TW, Huang KC, Tsai SW, Chen CF, Chen WM. Risk factors and modes of failure in the modern dual mobility implant. A systematic review and meta-analysis. BMC Musculoskelet Disord 2021; 22:541. [PMID: 34126990 PMCID: PMC8204435 DOI: 10.1186/s12891-021-04404-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 05/24/2021] [Indexed: 02/08/2023] Open
Abstract
Background The aims of this meta-analysis were to: (1) validate the outcome of modern dual mobility (DM) designs in patients who had undergone primary and revision total hip arthroplasty (THA) procedures and (2) to identify factors that affect the outcome. Methods We searched for studies that assessed the outcome of modern DM-THA in primary and revision procedures that were conducted between January, 2000 to August, 2020 on PubMed, MEDLINE, Cochrane Reviews and Embase. The pooled incidence of the most common failure modes and patient reported outcomes were evaluated in patients who have received: (1) primary THA, (2) revision THA for all causes or (3) for recurrent dislocation. A meta-regression analysis was performed for each parameter to determine the association with the outcome. The study design of each study was assessed for potential bias and flaws by using the quality assessment tool for case series studies. Results A total of 119 studies (N= 30016 DM-THAs) were included for analysis. The mean follow-up duration was 47.3 months. The overall implant failure rate was 4.2% (primary: 2.3%, revision for all causes: 5.5%, recurrent dislocation: 6.0%). The most common failure modes were aseptic loosening (primary: 0.9%, revision for all causes: 2.2%, recurrent dislocation: 2.4%), septic loosening (primary:0.8%, revision for all causes: 2.3%, recurrent dislocation: 2.5%), extra-articular dislocation (primary:0.6%, revision for all causes:1.3%, recurrent dislocation:2.5%), intra-prosthetic dislocation (primary:0.8%, revision for all causes:1.0%, recurrent dislocation:1.6%) and periprosthetic fracture (primary:0.9%, revision for all causes:0.9%, recurrent dislocation:1.3%). The multi-regression analysis identified younger age (β=-0.04, 95% CI -0.07 – -0.02) and female patients (β=3.34, 95% CI 0.91–5.78) were correlated with higher implant failure rate. Age, gender, posterolateral approach and body mass index (BMI) were not risk factors for extra-articular or intra-prosthetic dislocation in this cohort. The overall Harris hip score and Merle d’Aubigné score were 84.87 and 16.36, respectively. Level of evidence of this meta-analysis was IV. Conclusion Modern dual-mobility designs provide satisfactory mid-term implant survival and clinical performance. Younger age and female patients might impact the outcome after DM-THA. Future research directions should focus on, (1) long-term outcome of modern dual-mobility design, including specific concerns such as intra-prosthetic dislocation and elevated metal ion, and (2) cost-effectiveness analysis of dual-mobility implant as an alternative to conventional THA for patients who are at high risk of dislocation. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-021-04404-4.
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Affiliation(s)
- Fu-Yuan Pai
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, No. 201, Sec 2, Shi-Pai Road, Taipei 112, Taiwan.,Department of Orthopaedics, School of Medicine, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
| | - Hsuan-Hsiao Ma
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, No. 201, Sec 2, Shi-Pai Road, Taipei 112, Taiwan.,Department of Orthopaedics, School of Medicine, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
| | - Te-Feng Arthur Chou
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, No. 201, Sec 2, Shi-Pai Road, Taipei 112, Taiwan.,Department of Orthopaedics, School of Medicine, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
| | - Tsan-Wen Huang
- Chang Gung University College of Medicine, Taoyuan, Taiwan.,Department of Orthopaedic Surgery, Chang-Gung Memorial Hospital, Chiayi, Taiwan
| | - Kuo-Chin Huang
- Chang Gung University College of Medicine, Taoyuan, Taiwan.,Department of Orthopaedic Surgery, Chang-Gung Memorial Hospital, Chiayi, Taiwan
| | - Shang-Wen Tsai
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, No. 201, Sec 2, Shi-Pai Road, Taipei 112, Taiwan.,Department of Orthopaedics, School of Medicine, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
| | - Cheng-Fong Chen
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, No. 201, Sec 2, Shi-Pai Road, Taipei 112, Taiwan. .,Department of Orthopaedics, School of Medicine, National Yang-Ming Chiao-Tung University, Taipei, Taiwan.
| | - Wei-Ming Chen
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, No. 201, Sec 2, Shi-Pai Road, Taipei 112, Taiwan.,Department of Orthopaedics, School of Medicine, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
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9
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Zhu L, Li L, Yin B, Jiang X, Peng H, Hou X. Effect of continuous nursing combined with salcatonin on postoperative pains in elderly patients after hip replacement. Am J Transl Res 2021; 13:5264-5271. [PMID: 34150117 PMCID: PMC8205840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVE This study was designed to explore the effect of continuous nursing combined with salcatonin on the improvements of postoperative pain in elderly patients after hip replacement. METHODS A total of 99 elderly patients treated by hip replacement in our hospital were divided into the control group (CG, n=49, routine nursing + salcatonin) and the study group (SG, n=50, continuous nursing + salcatonin). The visual analogue scale (VAS) during rest (RVAS), VAS during initiative movement (IVAS) and VAS during passive movement = (PVAS) at 3 d, 7 d, 10 d, 14 d and 30 d after operation, the Harris hip score (HHS), Barthel index and geriatric depression scale (GDS) at 1 month after operation, and the incidences of tumble and refracture during the postoperative 6-month follow-up were compared between the two groups. RESULTS In comparison with the CG, except for higher HHS and Barthel index at 1 month after operation (P<0.05), the SG was associated with lower RVAS, IVAS and PVAS at 7 d, 10 d, 14 d and 30 d after operation (P<0.05), lower GDS at 1 month after operation, and lower incidences of tumble and refracture during the 6 months after operation (P<0.05). CONCLUSION The combination of continuous nursing and salcatonin has achieved marked effects not only on mitigating the pains at the early stage after a hip replacement in elderly patients, but also on improving their joint functions and reducing the incidences of tumble and refracture in a long run.
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Affiliation(s)
- Liyu Zhu
- Department of Anesthesiology, Nanfang Hospital, Southern Medical UniversityGuangzhou City, Guangdong Province, China
| | - Lin Li
- Department of Information, Nanfang Hospital, Southern Medical UniversityGuangzhou City, Guangdong Province, China
| | - Binyan Yin
- Department of Anesthesiology, Nanfang Hospital, Southern Medical UniversityGuangzhou City, Guangdong Province, China
| | - Xian Jiang
- Department of Anesthesiology, Nanfang Hospital, Southern Medical UniversityGuangzhou City, Guangdong Province, China
| | - Huanchuan Peng
- Department of Anesthesiology, Nanfang Hospital, Southern Medical UniversityGuangzhou City, Guangdong Province, China
| | - Xiaomin Hou
- Department of Anesthesiology, Nanfang Hospital, Southern Medical UniversityGuangzhou City, Guangdong Province, China
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10
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Lin M, Zhang F. Effect of predictive nursing on postoperative rehabilitation and complications of patients undergoing hip replacement and maintenance hemodialysis. Am J Transl Res 2021; 13:1717-1725. [PMID: 33841694 PMCID: PMC8014412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 07/28/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To analyze the effect of predictive nursing on postoperative rehabilitation index and complications in patients after hip replacement with maintenance hemodialysis. METHODS A total of 81 cases of patients underwent hip replacement and maintenance hemodialysis in our hospital were selected as the research objects and divided into study group (n=41) and control group (n=40) with retrospective analysis method based on different intervention method. Patients in the study group received predictive nursing, while patients in the control group received routine nursing. The hip function and activity, duration of walking with and without crutches, adverse emotions, pain and the incidence of various complications after intervention were compared between the two groups. RESULTS There was no significant difference in Harris score between the two groups at 7 days after intervention (P>0.05); the Harris scores of the study group were significantly higher than those of the control group (P<0.05) at 1, 3 and 6 months after intervention. Before intervention, there was no significant difference in hip activity between the two groups (P>0.05); 3 months surgery operation, the hip extension, abduction and rotation angle of the study group were significantly higher than those of the control group (P<0.05); the duration of walking with and without crutches in the study group were significantly shorter than those in the control group (P<0.05); the scores of adverse emotions, pain and complications in the study group were significantly lower than those in the control group (P<0.05). CONCLUSION The implementation of predictive nursing to patients underwent hip replacement and maintenance hemodialysis can improve hip activity and joint function after surgery, accelerate postoperative recovery, relieve postoperative pain symptoms, and reduce the incidence of various complications.
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Affiliation(s)
- Mingzhi Lin
- Operating Room, The First People’s Hospital of WenlingWenling 317500, Zhejiang Province, China
| | - Fang Zhang
- Nephrology Hemodialysis Room, The First People’s Hospital of WenlingWenling 317500, Zhejiang Province, China
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Assi C, Barakat H, Mansour J, Samaha C, Yammine K. Primary total hip arthroplasty: mid-term outcomes of dual-mobility cups in patients at high risk of dislocation. Hip Int 2021; 31:174-180. [PMID: 31875722 DOI: 10.1177/1120700019889031] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Dual-mobility cups (DMC) are currently used in patients having risk factors of instability. Most of the studies report the use of DMC in patients having a single high-risk variable. The aim of the study was to analyse a continuous series of patients treated with primary total hip arthroplasty (THA) and DMC with different high risk for dislocation. METHODS This is a retrospective study analysing the outcomes of primary THA with DMC in patients at high-risk of dislocation. The sample consisted of 215 patients having 1 of 3 aetiologies or risk factors: (1) young subjects (<55 years); (2) osteonecrosis of the femoral head (ONFH); and (3) femoral neck fracture (FNF). RESULTS With a mean follow-up duration of 70 ± 24.7 months, the findings showed the following: 2 patients had dislocated their hip following motor vehicle accidents; 1 patient had a traumatic femoral peri-prosthetic fracture; and 1 patient had an acute infection. No intra-prosthetic dislocation or aseptic loosening were encountered. No radiolucent lines were observed on the acetabular side. The mean modified Hip Harris Score was 96.6 ± 7.4%. Out of 186 patients, 170 (90.1%) would label their operated hip as a "forgotten hip". 78 out of the 84 patients (92.8%) who used to practice oriental sitting and/or ablution for prayers were able to return to their usual daily activities of extreme hip position and 74 out of the 84 patients (88%) described their operated hip as "a forgotten hip". No correlation was found between any of the studied variables. DISCUSSION The findings of this series of patients at high risk of dislocation showed excellent clinical and radiological results with very few complications. The use of DMC seems to counteract the impact of some aetiologies/risk factors that could lead to higher instability. Most patients practising extreme hip positions resumed their usual practices.
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Affiliation(s)
- Chahine Assi
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Beirut, Lebanon
| | - Hanane Barakat
- Department of Anesthesiology, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Beirut, Lebanon
| | - Jad Mansour
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Beirut, Lebanon
| | - Camille Samaha
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Beirut, Lebanon
| | - Kaissar Yammine
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Lebanese American University School of Medicine, Beirut, Lebanon.,Center of Evidence-based Anatomy, Sports & Orthopedic Research, Beirut, Lebanon
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12
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Assi C, Mansour J, Prudhon JL, Caton J, Yammine K. Dual-mobility cups could yield lesser infections than conventional cups: a meta-analysis of comparative studies. INTERNATIONAL ORTHOPAEDICS 2020; 45:1961-1969. [PMID: 32951120 DOI: 10.1007/s00264-020-04791-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 09/01/2020] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Dual-mobility cups (DMC) are gaining popularity mainly for their reduced rate of dislocation following total hip arthroplasty (THA). Currently, indication for DMC use extends beyond patients with high risk of dislocation or revision THA cases. Many authors reported DMC outcomes in primary THA for all aetiologies. However, some reports claimed that the use of DMC is accompanied with higher rates of infection compared with conventional cups (CC) in both primary and revision THA. RESEARCH QUESTION Does the use of DMC generate higher rates of infection when compared with conventional cups? OBJECTIVES The aim of this meta-analysis was to look for significant difference in the rate of post-operative infection between DMC cups and conventional cups. METHODOLOGY MEDLINE, Embase, Scopus, Web of Science, Cochrane Library, and Google Scholar were searched since inception. Only studies with comparative design reporting the outcome infection rate were included. RESULTS Seventeen retrospective comparative studies were located comprising 248,541 patients: 16,020 in the DMC group and 232,521 in the CC group. The mean follow-up period was 37.5 ± 42 and 50.2 ± 48.7 months for the DMC and CC groups, respectively. The meta-analytical results indicated the following: (a) significantly lesser infections following DMC compared with CC in revision THA (odds ratio (OR) = 0.75 (95% CI = 0.653 to 0.874, P = 0.0002, I2 = 25%); (b) for primary THA and for large-sampled registries, significance was found using only the fixed-effects model estimate; and (c) no significant difference was found for the subgroup of cohort studies. CONCLUSION Our results clearly refute the claim that DMC would yield higher rates of infection. On the contrary, the findings demonstrated that the use of DMC reduces the risk of post-operative infection in revision THA and a similar lower infection trend for primary THA when compared with the standard cups.
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Affiliation(s)
- Chahine Assi
- Department of Orthopedic Surgery, Lebanese American University-Rizk Hospital and Lebanese American University School of Medicine, P.O. Box 11-3288, Beirut, Lebanon
| | - Jad Mansour
- Department of Orthopedic Surgery, Lebanese American University-Rizk Hospital and Lebanese American University School of Medicine, P.O. Box 11-3288, Beirut, Lebanon
| | | | | | - Kaissar Yammine
- Department of Orthopedic Surgery, Lebanese American University-Rizk Hospital and Lebanese American University School of Medicine, P.O. Box 11-3288, Beirut, Lebanon.
- Center for Evidence-based Anatomy, Sports & Orthopedic Research, Jdeideh, Lebanon.
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Mont MA, Salem HS, Piuzzi NS, Goodman SB, Jones LC. Nontraumatic Osteonecrosis of the Femoral Head: Where Do We Stand Today?: A 5-Year Update. J Bone Joint Surg Am 2020; 102:1084-1099. [PMID: 32282421 PMCID: PMC7508290 DOI: 10.2106/jbjs.19.01271] [Citation(s) in RCA: 154] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
➢. Clinicians should exercise a high level of suspicion in at-risk patients (those who use corticosteroids, consume excessive alcohol, have sickle cell disease, etc.) in order to diagnose osteonecrosis of the femoral head in its earliest stage. ➢. Nonoperative treatment modalities have generally been ineffective at halting progression. Thus, nonoperative treatment is not appropriate in early stages when one is attempting to preserve the native joint, except potentially on rare occasions for small-sized, medially located lesions, which may heal without surgery. ➢. Joint-preserving procedures should be attempted in early-stage lesions to save the femoral head. ➢. Cell-based augmentation of joint-preserving procedures continues to show promising results, and thus should be considered as an ancillary treatment method that may improve clinical outcomes. ➢. The outcomes of total hip arthroplasty in the setting of osteonecrosis are excellent, with results similar to those in patients who have an underlying diagnosis of osteoarthritis.
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Affiliation(s)
- Michael A. Mont
- Lenox Hill Hospital, New York, NY,Cleveland Clinic, Cleveland, Ohio,Email address for M.A. Mont:
| | | | | | | | - Lynne C. Jones
- Johns Hopkins University School of Medicine, Baltimore, Maryland
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Markel D, Bou-Akl T, Rossi M, Pizzimenti NM, Wu B, Ren WP. Response profiles of circulating leukocytes and metal ions in patients with a modular dual-mobility hip implant. Hip Int 2019:1120700019865530. [PMID: 31328577 DOI: 10.1177/1120700019865530] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION The purpose of this study was to retrospectively evaluate blood metal ion levels and leukocyte profiles in patients with modular dual-mobility hip implant (MDM) during a postoperative follow-up up to 2 years. METHODS We recruited 49 patients in a retrospective cohort study and had postoperative follow-up up to 2 years. Blood concentrations of chromium (Cr), cobalt (Co) and serum cytokines were measured. Flow cytometry was used to quantify the subpopulations of leukocytes, including CD14+ and CD16+ monocytes, CD3+ T lymphocytes, CD19+ B lymphocytes, CD4+ Helper T-cells and CD45+RA memory vs. naïve T-cells. RESULTS Clinical performances of implants were good during 2 years of follow-up. Cr levels were normal in all patients and only detectable in 1 patient (1.4µg/L, ref < 5.0µg/L). Co levels were mildly elevated in 4 patients at 1 year (mean 1.375µg/L, range 1.2-1.7µg/L, ref < 1.0µg/L) and in 2 patients at 2-year follow-up (both 1.2µg/L). Interestingly, Co level observed in 3 patients at 1 year converted to undetectable at their 2-year follow-up. Percentages of B cells, T cells and their subpopulations were within normal levels. There was no increase of CD16+ inflammatory monocytes. DISCUSSION With the recent introduction of MDM systems there is potential for metal ion release from the interface between the acetabular shell and CoCr liner. Clinical results have been good and metal levels undetectable or within acceptable ranges at 1-2 years. There was no evidence of activated immune response, as manifested by constant circulating leukocyte profiles and no increase of CD16+ inflammatory monocytes.
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Affiliation(s)
- David Markel
- 1 The CORE Institute, Novi, MI
- 2 Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA
- 3 Ascension Providence Hospital Orthopedic Research Laboratory, Southfield, MI, USA
| | - Theresa Bou-Akl
- 3 Ascension Providence Hospital Orthopedic Research Laboratory, Southfield, MI, USA
| | - Maria Rossi
- 3 Ascension Providence Hospital Orthopedic Research Laboratory, Southfield, MI, USA
| | | | - Bin Wu
- 3 Ascension Providence Hospital Orthopedic Research Laboratory, Southfield, MI, USA
| | - Wei-Ping Ren
- 2 Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA
- 3 Ascension Providence Hospital Orthopedic Research Laboratory, Southfield, MI, USA
- 4 John D. Dingle VA Medical Center, Detroit, MI, USA
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Mortality Rate and Mid-Term Outcomes of Total Hip Arthroplasty Using Dual Mobility Cups for the Treatment of Femoral Neck Fractures in a Middle Eastern Population. J Arthroplasty 2019; 34:333-337. [PMID: 30459008 DOI: 10.1016/j.arth.2018.10.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 10/18/2018] [Accepted: 10/24/2018] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND The dual mobility cups (DMCs) were shown to reduce dislocation rate following total hip arthroplasty for any etiology, including femoral neck fractures. No reported studies evaluating DMC results for femoral neck fracture in a Middle Eastern population were found in the literature. METHODS This study aims to look for mortality rate, clinical, and functional outcomes in a population having specific rituals involving extreme hip positions as part of their daily activities. RESULTS Of an initial sample of 174 patients (177 operated hips), 18 (10.3%) patients (20 hips) died after a mean of 39.6 ± 13.8 months (ranging from 2 to 49 months) with only 3 (1.7%) during the first post-operative year. Twelve patients (13 hips) were lost to follow-up and 19 patients (19 hips) had their radiological data incomplete. In the final sample of 125 patients (125 hips), no dislocation, aseptic loosening, or infection was encountered. The mean modified Hip Harris Score was of 94.8 ± 8.4. The mean modified Hip Harris Score of 40 patients who used to practice regularly oriental sitting position or prayers was 94.1 ± 3.1. After surgery, 36 of these 40 patients (90%) described their hip as "a forgotten hip." Multivariate analyses found correlation only between mortality and cardiovascular co-morbidities. CONCLUSION DMC implants showed excellent clinical and functional results. The majority of patients having rituals and customs involving extreme hip positions were able to resume their daily activities. The observed low mortality rate should incite future research to investigate its correlation with the use of DMCs.
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Hernigou P, Rigoulot G, Auregan JC, Housset V, Bastard C, Dubory A, Lachaniette CHF. Unusual indication of Cell therapy for hip osteonecrosis after pregnancy. SICOT J 2018; 4:46. [PMID: 30394283 PMCID: PMC6216759 DOI: 10.1051/sicotj/2018044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 09/05/2018] [Indexed: 11/14/2022] Open
Abstract
PURPOSE Osteonecrosis is a rare event during or after pregnancy. Due to the low number of cases, there is no report of long-term results after conservative surgery in this population. METHOD From 1992 to 2010, 145 consecutive female patients with unilateral symptomatic (94 stage I and 51 stage II) left hip osteonecrosis (ON) related to pregnancy were treated between 4 and 16 months after delivery with percutaneous mesenchymal stem cell (MSC) injection obtained from bone marrow concentration. The average total number of MSCs (counted as number of colonies forming units-fibroblast) injected in the hip was 185 000 ± 65 000 cells (range 95 000-240 000 cells). RESULTS At the most recent follow-up (average 15 years after hip surgery, range 8-25 years), among the 145 hips included in the study, 4 hips (2.7%) had collapsed and were treated with total hip arthroplasty (THA). Thirty-two of the 94 stage I had progressed to stage II; and 4 of the 51 stage II had progressed to stage III and collapse. The other 141 hips (97.3%) were without collapse and pain free. On MRI, as percentage of the volume of the femoral head, the osteonecrosis had decreased from 34.5% pre-operatively to 6% at the most recent follow-up. For women who had other children after treatment, a subsequent pregnancy was not associated with osteonecrosis. CONCLUSION Patients with hip osteonecrosis following pregnancy had a low conversion rate to THA when treated early with cell therapy.
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Affiliation(s)
- Philippe Hernigou
- Hôpital Henri Mondor, 51 avenue du Maréchal de Tassigny, 94000 Creteil, France
| | - Guillaume Rigoulot
- Hôpital Henri Mondor, 51 avenue du Maréchal de Tassigny, 94000 Creteil, France
| | - Jean Charles Auregan
- Auregan Jean Charles, Hopital Antoine Beclere, 157 Rue de la Porte de Trivaux, 92140 Clamart, France
| | - Victor Housset
- Hôpital Henri Mondor, 51 avenue du Maréchal de Tassigny, 94000 Creteil, France
| | - Claire Bastard
- Hôpital Henri Mondor, 51 avenue du Maréchal de Tassigny, 94000 Creteil, France
| | - Arnaud Dubory
- Hôpital Henri Mondor, 51 avenue du Maréchal de Tassigny, 94000 Creteil, France
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Assi C, Caton J, Fawaz W, Samaha C, Yammine K. Revision total hip arthroplasty with a Kerboull plate: comparative outcomes using standard versus dual mobility cups. INTERNATIONAL ORTHOPAEDICS 2018; 43:2245-2251. [PMID: 30370452 DOI: 10.1007/s00264-018-4209-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/18/2018] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Instability is a major complication in revision total hip arthroplasty (THA). Dual mobility (DM) cups were shown to reduce the risk of post-operative implant dislocation. Few case-series studies assessed the outcomes of cemented DM cups when associated to acetabular reconstruction antiprotrusio cages. No published comparative studies were found to look for outcome differences between standard cups (SC) and DM cups in first revision THA associated with a Kerboull plate (KP) and acetabular bone grafting. MATERIALS AND METHODS This is a retrospective comparative study of two groups of patients in two institutions. All cases were first revision THA with KP reconstruction; a cemented standard cup (SC) was used in one institution (THA-SC group) while a cemented DM cup was used in the second institution (THA-DM group). The posterolateral approach and the same technique for KP placement, the cross technique, were performed in both groups. Primary outcomes were dislocation and revision rates. Survivorship and clinical and radiological results were set to be secondary outcomes. There were ten patients (13 hips) in the first group and 16 patients (16 hips) in the second with a mean follow-up clinical and radiological evaluation of 74.2 ± 47.9 months. RESULTS Besides age, no significant demographic differences were present between both groups. There were three dislocations (23%) in the first group treated with close reduction compared to none in the second (p = 0.04). No further episode of dislocation or revision surgery occurred until the last follow-up in both groups. The mean Harris Hip Scores for the THA-SC and THA-DM groups were 87.5 ± 10.9 and 87.4 ± 12.1, respectively. When present, radiolucent lines were less than 1 mm thick and were non-progressive in both groups. In all patients, complete trabeculation remodeling or cortical repair of the graft was observed. CONCLUSION The cup type was the single variable which could account for the observed dislocation rate difference. The mid-term results of using DM cups with KP in first revision THA seem very encouraging. Our findings add to the previously published results on the excellent outcomes in terms of stability in revision THA when using DM cups.
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Affiliation(s)
- Chahine Assi
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Achrafieh, Beirut, Lebanon
| | | | - Wissam Fawaz
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Achrafieh, Beirut, Lebanon
| | - Camille Samaha
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Achrafieh, Beirut, Lebanon
| | - Kaissar Yammine
- Department of Orthopedic Surgery, Lebanese American University Medical Center-Rizk Hospital, Achrafieh, Beirut, Lebanon. .,Center for Evidence-Based Anatomy, Sports & Orthopedic Research, Beirut, Lebanon.
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