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Iwakiri K, Ohta Y, Minoda Y, Ueno S, Kobayashi A, Nakamura H. No Impact of Contact Between the Medial Collar of a Hydroxyapatite-Coated Triple-Tapered Stem and the Femoral Neck on Periprosthetic Bone Mineral Density. J Arthroplasty 2024; 39:2082-2087. [PMID: 38360279 DOI: 10.1016/j.arth.2024.02.011] [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: 07/22/2023] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 02/17/2024] Open
Abstract
BACKGROUND Hydroxyapatite-coated, triple-tapered, shorter-length stems with a medial collar have been reported with good results for a few years. We investigated whether contact between the medial collar and femoral neck affects clinical outcomes and changes in bone mineral density (BMD) in patients who have this type of stem in their total hip arthroplasty construct. METHODS This was a retrospective, single-center study involving 62 patients scheduled for unilateral total hip arthroplasty using a hydroxyapatite-coated, triple-tapered, shorter-length stem who were followed for at least 1 year postoperatively. All patients had a Dorr type B femoral canal shape. Contact between the medial collar and the femoral neck was evaluated by computed tomography at the third postoperative month, and patients were classified into 2 groups. Postoperative clinical outcomes were investigated by the Western Ontario and McMaster Universities Arthritis Index and the Japanese Orthopaedic Association scores; radiological evaluation included stem fixation, spot welds and cortical hypertrophy, postoperative 3-dimensional stem alignment, and periprosthetic BMD changes. RESULTS There were 51 patients in the Contact + group (collar and neck contact) and 11 in the Contact-group (no contact). There were no differences between the 2 groups in the improvement of Western Ontario and McMaster Universities Arthritis Index and Japanese Orthopaedic Association scores, stem fixation, occurrence of cortical hypertrophy, or 3-dimensional stem alignment. Radiolucent lines were present in zones 3, 4, and 5 in 6 patients (12%) in the Contact + group only, who had no statistical difference between the 2 groups. Bone mineral density (BMD) decreased most in zone 7 in both groups, with no difference between the 2 groups. CONCLUSIONS The presence or absence of contact between the medial collar and femoral neck did not affect postoperative BMD changes or radiological or clinical results. LEVEL OF EVIDENCE Therapeutic Level III.
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Affiliation(s)
- Kentaro Iwakiri
- Department of Orthopaedic Surgery, Shiraniwa Hospital Joint Arthroplasty Center, Nara, Japan
| | - Yoichi Ohta
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Yukihide Minoda
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Shuhei Ueno
- Department of Orthopaedic Surgery, Shiraniwa Hospital Joint Arthroplasty Center, Nara, Japan
| | - Akio Kobayashi
- Department of Orthopaedic Surgery, Shiraniwa Hospital Joint Arthroplasty Center, Nara, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
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Ohashi Y, Fukushima K, Tsuchiya M, Saito H, Uchida K, Uchiyama K, Takahira N, Takaso M. Influence of broach surface design of a fully hydroxyapatite coated, double tapered stem on periprosthetic bone mineral density after total hip arthroplasty: a study based on the morphology of the proximal femur. Arch Orthop Trauma Surg 2024:10.1007/s00402-024-05430-2. [PMID: 38987502 DOI: 10.1007/s00402-024-05430-2] [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: 09/26/2023] [Accepted: 06/27/2024] [Indexed: 07/12/2024]
Abstract
INTRODUCTION This study aimed to compare the impact of different broach surface designs on post-operative clinical outcomes, bone reactions and changes in bone mineral density (BMD) in patients who underwent total hip arthroplasty (THA) using a fully hydroxyapatite coated and double tapered stem with either compaction shape (COM) or hybrid shape (HYB) broaches. MATERIALS AND METHODS A retrospective analysis was conducted on 76 patients (100 hips) who underwent primary THA using the Avenir complete stem®. Patients were divided into two groups: the COM broach group (50 hips) and HYB broach group (50 hips). We evaluated clinical outcomes using the Japanese Orthopaedic Association hip scores one month before the surgery, and 12 and 24 months after the surgery. Radiographic findings, including stem alignment angles, radiolucent lines, spot welds, and cortical hypertrophy, were assessed. BMD around the stem in Gruen zones 1-7 was evaluated using dual-energy X-ray absorptiometry (DEXA) at 7 days, 12, and 24 months post-operatively. The Dorr classification was used to assess femoral morphology. RESULTS There were no significant differences in clinical outcomes, radiographic findings, or BMD changes between the COM and HYB broach groups in the overall patient cohort. However, in Dorr type A femurs, the COM broach group demonstrated superior BMD superior preservation in zones 1 and 7 after 12 months and in zones 1, 6 and 7 after 24 months. Additionally, in Dorr type B femurs, significant BMD preservation was observed in zone 3 at 24 months in the COM broach group. CONCLUSIONS This study suggests that the broach surface design of fully hydroxyapatite coated stems may influence periprosthetic BMD changes, especially in Dorr type A and B femurs. Surgeons should consider broach selection based on patient-specific femoral morphology to optimize BMD preservation in THA procedures using fully hydroxyapatite coated stems.
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Affiliation(s)
- Yoshihisa Ohashi
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-Ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Kensuke Fukushima
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-Ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan.
| | - Maho Tsuchiya
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-Ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Hiroki Saito
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-Ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Kentaro Uchida
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-Ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Katsufumi Uchiyama
- Department of Patient Safety and Healthcare Administration, Kitasato University School of Medicine, 1-15-1 Minami-Ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Naonobu Takahira
- Department of Rehabilitation, Kitasato University School of Allied Health Sciences, 1-15-1 Minami-Ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
| | - Masashi Takaso
- Department of Orthopedic Surgery, Kitasato University School of Medicine, 1-15-1 Minami-Ku, Kitasato, Sagamihara City, Kanagawa, 252-0374, Japan
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Watanabe R, Mishima H, Takehashi H, Wada H, Totsuka S, Nishino T, Yamazaki M. Bone mineral density changes around the stem correlate with stress changes after total hip arthroplasty: A study using thermoelastic stress analysis. J Exp Orthop 2024; 11:e12031. [PMID: 38741903 PMCID: PMC11089845 DOI: 10.1002/jeo2.12031] [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: 10/16/2023] [Revised: 03/02/2024] [Accepted: 04/23/2024] [Indexed: 05/16/2024] Open
Abstract
Purpose Thermoelastic stress analysis (TSA) was used to evaluate stress changes over the entire surface of a specimen. This study aimed to assess the relationship between femoral stress distribution, analysed using TSA and changes in bone mineral density (BMD) after total hip arthroplasty (THA). Methods Stress changes in the simulated bone before and after taper-wedge stem insertion were measured using the TSA. Stress changes were compared with BMD changes around the stem 1 year after surgery in a THA patient (58 hips) with the same taper-wedge stem. Subsequently, we compared the correlation between stress changes and BMD changes. Results TSA revealed significant stress changes before and after stem insertion, with prominent alterations in the proximal medial region. The BMD changes at 1 year post-THA exhibited a 15%-25% decrease in the proximal zones, while Zones 2-6 showed a -6% to 3% change. Notably, a strong positive correlation (0.886) was found between the stress change rate and BMD change rate. Conclusions This study demonstrated a high correlation between femoral stress distribution assessed using TSA and subsequent BMD changes after THA. The TSA method offers the potential to predict stress distribution and BMD alterations postsurgery, aiding in implant development and clinical assessment. Combining TSA with finite element analysis could provide even more detailed insights into stress distribution. Level of Evidence Case series (with or without comparison).
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Affiliation(s)
- Ryunosuke Watanabe
- Department of Orthopaedic Surgery, Institute of MedicineUniversity of TsukubaTsukubaJapan
| | - Hajime Mishima
- Department of Orthopaedic Surgery, Institute of MedicineUniversity of TsukubaTsukubaJapan
| | - Hironori Takehashi
- Department of Orthopaedic Surgery, Institute of MedicineUniversity of TsukubaTsukubaJapan
| | - Hiroshi Wada
- Department of Orthopaedic Surgery, Institute of MedicineUniversity of TsukubaTsukubaJapan
| | - Sho Totsuka
- Department of Orthopaedic Surgery, Institute of MedicineUniversity of TsukubaTsukubaJapan
| | - Tomofumi Nishino
- Department of Orthopaedic Surgery, Institute of MedicineUniversity of TsukubaTsukubaJapan
| | - Masashi Yamazaki
- Department of Orthopaedic Surgery, Institute of MedicineUniversity of TsukubaTsukubaJapan
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Tsujino M, Iwakiri K, Ohta Y, Minoda Y, Kobayashi A, Nakamura H. Stem Alignment With the Tapered Wedge Cementless Stem "Accolade II" Does Not Affect Bone Mineral Density Over 5 Years After Total Hip Arthroplasty. Arthroplast Today 2024; 27:101433. [PMID: 38946925 PMCID: PMC11214367 DOI: 10.1016/j.artd.2024.101433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/23/2024] [Accepted: 05/01/2024] [Indexed: 07/02/2024] Open
Abstract
Background This study aimed to investigate the relationship between 3-dimensional (3D) alignment and postoperative bone mineral density (BMD) changes with Accolade II tapered wedge stems, which have a different proximal shape from other tapered wedge stems, up to 5 years after primary total hip arthroplasty. Methods We retrospectively analyzed the hips of 89 patients who underwent total hip arthroplasty using the second-generation proximally coated cementless stem (Accolade II; Stryker Orthopedics, Mahwah, NJ) at our institution from 2014 to 2018 over a 5-year follow-up. We evaluated the relationship between stem alignment, measured using 3D-templating software, and BMD changes in the 7 Gruen zones and compared the data with those from a former study using other short taper-wedge stems. Results BMDs in zones 1 and 7 continued to decrease gradually every year after surgery, and BMD in zone 7 showed the largest decrease (21%) from baseline over 5 years. No correlation was found between stem alignment (varus/valgus, flexion/extension, and anteversion/retroversion) and changes in BMD in each zone over 5 years. Conclusions Our data showed no correlation between 3D stem alignment and changes in BMD in each Gruen zone over 5 years. This suggests that the Accolade II stem may fit better into any shape of the proximal medullary canal because of its unique characteristics.
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Affiliation(s)
- Masashi Tsujino
- Department of Orthopaedic Surgery, Shiraniwa Hospital Joint Arthroplasty Center, Nara, Japan
| | - Kentaro Iwakiri
- Department of Orthopaedic Surgery, Shiraniwa Hospital Joint Arthroplasty Center, Nara, Japan
| | - Yoichi Ohta
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Yukihide Minoda
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Akio Kobayashi
- Department of Orthopaedic Surgery, Shiraniwa Hospital Joint Arthroplasty Center, Nara, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
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Ohyama Y, Minoda Y, Masuda S, Sugama R, Ohta Y, Nakamura H. Contact states with femoral cortical bone and periprosthetic bone mineral density changes differ between traditional and newly introduced fully hydroxyapatite-coated stems. Bone Joint J 2024; 106-B:548-554. [PMID: 38821498 DOI: 10.1302/0301-620x.106b6.bjj-2023-1157.r2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2024]
Abstract
Aims The aim of this study was to compare the pattern of initial fixation and changes in periprosthetic bone mineral density (BMD) between patients who underwent total hip arthroplasty (THA) using a traditional fully hydroxyapatite (HA)-coated stem (T-HA group) and those with a newly introduced fully HA-coated stem (N-HA group). Methods The study included 36 patients with T-HA stems and 30 with N-HA stems. Dual-energy X-ray absorptiometry was used to measure the change in periprosthetic BMD, one and two years postoperatively. The 3D contact between the stem and femoral cortical bone was evaluated using a density-mapping system, and clinical assessment, including patient-reported outcome measurements, was recorded. Results There were significantly larger contact areas in Gruen zones 3, 5, and 6 in the N-HA group than in the T-HA group. At two years postoperatively, there was a significant decrease in BMD around the proximal-medial femur (zone 6) in the N-HA group and a significant increase in the T-HA group. BMD changes in both groups correlated with BMI or preoperative lumbar BMD rather than with the extent of contact with the femoral cortical bone. Conclusion The N-HA-coated stem showed a significantly larger contact area, indicating a distal fixation pattern, compared with the traditional fully HA-coated stem. The T-HA-coated stem showed better preservation of periprosthetic BMD, two years postoperatively. Surgeons should consider these patterns of fixation and differences in BMD when selecting fully HA-coated stems for THA, to improve the long-term outcomes.
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Affiliation(s)
- Yohei Ohyama
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Yukihide Minoda
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Sho Masuda
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Ryo Sugama
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Yoichi Ohta
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
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Sunavala-Dossabhoy G, Saba BM, McCarthy KJ. Debulking of the Femoral Stem in a Primary Total Hip Joint Replacement: A Novel Method to Reduce Stress Shielding. Bioengineering (Basel) 2024; 11:393. [PMID: 38671814 PMCID: PMC11047840 DOI: 10.3390/bioengineering11040393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/12/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
In current-generation designs of total primary hip joint replacement, the prostheses are fabricated from alloys. The modulus of elasticity of the alloy is substantially higher than that of the surrounding bone. This discrepancy plays a role in a phenomenon known as stress shielding, in which the bone bears a reduced proportion of the applied load. Stress shielding has been implicated in aseptic loosening of the implant which, in turn, results in reduction in the in vivo life of the implant. Rigid implants shield surrounding bone from mechanical loading, and the reduction in skeletal stress necessary to maintain bone mass and density results in accelerated bone loss, the forerunner to implant loosening. Femoral stems of various geometries and surface modifications, materials and material distributions, and porous structures have been investigated to achieve mechanical properties of stems closer to those of bone to mitigate stress shielding. For improved load transfer from implant to femur, the proposed study investigated a strategic debulking effort to impart controlled flexibility while retaining sufficient strength and endurance properties. Using an iterative design process, debulked configurations based on an internal skeletal truss framework were evaluated using finite element analysis. The implant models analyzed were solid; hollow, with a proximal hollowed stem; FB-2A, with thin, curved trusses extending from the central spine; and FB-3B and FB-3C, with thick, flat trusses extending from the central spine in a balanced-truss and a hemi-truss configuration, respectively. As outlined in the International Organization for Standardization (ISO) 7206 standards, implants were offset in natural femur for evaluation of load distribution or potted in testing cylinders for fatigue testing. The commonality across all debulked designs was the minimization of proximal stress shielding compared to conventional solid implants. Stem topography can influence performance, and the truss implants with or without the calcar collar were evaluated. Load sharing was equally effective irrespective of the collar; however, the collar was critical to reducing the stresses in the implant. Whether bonded directly to bone or cemented in the femur, the truss stem was effective at limiting stress shielding. However, a localized increase in maximum principal stress at the proximal lateral junction could adversely affect cement integrity. The controlled accommodation of deformation of the implant wall contributes to the load sharing capability of the truss implant, and for a superior biomechanical performance, the collared stem should be implanted in interference fit. Considering the results of all implant designs, the truss implant model FB-3C was the best model.
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Affiliation(s)
- Gulshan Sunavala-Dossabhoy
- Department of Biochemistry and Molecular Biology, LSU Health Science Center in Shreveport and Feist Weiller Cancer Center, Shreveport, LA 71130, USA
| | - Brent M. Saba
- Saba Metallurgical and Plant Engineering Services, LLC, Madisonville, LA 70447, USA;
| | - Kevin J. McCarthy
- Department of Cellular Biology and Anatomy, LSU Health Science Center in Shreveport and Feist Weiller Cancer Center, Shreveport, LA 71130, USA;
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Hooper G, Thompson D, Frampton C, Lash N, Sharr J, Fulker D, Gilchrist N. Evaluation of Proximal Femoral Bone Mineral Density in Cementless Total Hip Arthroplasty: A 3-Arm Prospective Randomized Controlled Trial. J Bone Joint Surg Am 2024; 106:508-516. [PMID: 38113306 DOI: 10.2106/jbjs.23.00449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
BACKGROUND Femoral stem design affects periprosthetic bone mineral density (BMD), which may impact long-term survival of cementless implants in total hip arthroplasty (THA). The aim of this study was to examine proximal femoral BMD in 3 morphologically different uncemented femoral stem designs to investigate whether any particular design resulted in better preservation of BMD. METHODS A total of 119 patients were randomized to receive a proximally coated collarless dual-taper wedge stem, a proximally coated collarless anatomic stem, or a fully coated collarless triple-taper stem. All surgeries were performed via the posterior approach, with mobilization on the day of surgery. Dual x-ray absorptiometry scans (Lunar iDXA, GE Healthcare) assessed BMD across the 7 Gruen zones preoperatively and at 6 weeks and 2 years postoperatively; if available, the native contralateral femur was also assessed as a control. Patient-reported outcomes of pain, function, and health were also assessed at these follow-ups. RESULTS Averaged across all stems, BMD increased in zones 1 (2.5%), 2 (17.1%), 3 (13.0%), 5 (10%), and 6 (17.9%) at 2 years. Greater preservation of BMD was measured on the lateral cortex (zone 2) for both the dual-taper wedge and anatomic stems (p = 0.019). The dual-taper wedge stem also demonstrated preservation of BMD in the medial calcar (zone 7), while the anatomic and triple-taper stems declined in this region; however, the difference did not reach significance (p = 0.059). Averaged across all stems, BMD decreased in the mid-diaphysis region, distal to the stem tip (zone 4). All stems performed similarly at the time of final follow-up with respect to the patient-reported outcomes. CONCLUSIONS This study demonstrated maintenance of femoral BMD after use of 3 different cementless femoral stem designs, with all achieving excellent improvements in patient-reported outcomes. The stems designed to load the proximal metaphyseal region resulted in higher BMD in that region. No significant stress-shielding was observed; however, longer follow-up is required to elucidate the impact of this finding on implant survivorship. LEVEL OF EVIDENCE Therapeutic Level I . See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Gary Hooper
- CGM Research Trust, Christchurch, South Island, New Zealand
- Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, South Island, New Zealand
| | | | - Christopher Frampton
- Department of Medicine, University of Otago, Christchurch, South Island, New Zealand
| | - Nicholas Lash
- Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, South Island, New Zealand
| | - Jonathan Sharr
- Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch, South Island, New Zealand
| | - David Fulker
- Stryker Australia, St Leonards, Sydney, Australia
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Hatano M, Koizumi Y, Yamamoto N, Miyoshi K, Kawabata K, Tanaka T, Tanaka S, Shiroshita A, Kataoka Y. Anti-osteoporotic drug efficacy for periprosthetic bone loss after total hip arthroplasty: A systematic review and network meta-analysis. J Orthop Sci 2024:S0949-2658(24)00012-5. [PMID: 38342711 DOI: 10.1016/j.jos.2024.01.011] [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: 07/31/2023] [Revised: 01/18/2024] [Accepted: 01/30/2024] [Indexed: 02/13/2024]
Abstract
BACKGROUND Periprosthetic bone loss following total hip arthroplasty (THA) threatens prosthesis stability. This systematic review and network meta-analysis aimed to compare the efficacy of anti-osteoporotic drugs for measures of hip function according to functional outcomes, periprosthetic femoral bone mineral density loss in each Gruen zone, and revision surgery after THA. METHODS The systematic search of six literature databases was conducted in December 2021 in accordance with PRISMA guidelines. Adult participants who underwent primary THA were included. A random-effects network meta-analysis was performed within a frequentist framework, and the confidence in the evidence for each outcome was evaluated using the CINeMA tool, which assessed the credibility of results from the network meta-analysis. We included 22 randomized controlled trials (1243 participants) comparing the efficacy and safety of bisphosphonates (including etidronate, clodronate, alendronate, risedronate, pamidronate, and zoledronate), denosumab, selective estrogen receptor modulator, teriparatide, calcium + vitamin D, calcium, and vitamin D. We defined the period for revision surgery as the final follow-up period. RESULTS Raloxifene, bisphosphonate, calcium + vitamin D, and denosumab for prosthetic hip function might have minimal differences when compared with placebos. The magnitude of the anti-osteoporotic drug effect on periprosthetic femoral bone loss varied across different Gruen zones. Bisphosphonate, denosumab, teriparatide might be more effective than placebo in Gruen zone 1 at 12 months after THA. Additionally, bisphosphonate might be more effective than placebo in Gruen zones 2, 5, 6, and 7 at 12 months after THA. Denosumab was efficacious in preventing bone loss in Gruen zones 6 and 7 at 12 months after THA. Teriparatide was likely to be efficacious in preventing bone loss in Gruen zone 7 at 12 months after THA. Raloxifene was slightly efficacious in preventing bone loss in Gruen zones 2 and 3 at 12 months after THA. Calcium was slightly efficacious in preventing bone loss in Gruen zone 5 at 12 months after THA. None of the studies reported revision surgery. CONCLUSIONS Bisphosphonate and denosumab may be effective anti-osteoporotic drugs for preventing periprosthetic proximal femoral bone loss due to stress shielding after THA, particularly in cementless proximal fixation stems, which are the most commonly used prostheses worldwide.
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Affiliation(s)
- Masaki Hatano
- Department of Orthopaedic and Spine Surgery, Yokohama Rosai Hospital, 3-2-1-1 Kozukue, Kohoku-ku, Kanagawa 222-0036, Japan; Scientific Research Works Peer Support Group (SRWS-PSG), Osaka, Japan
| | - Yasuhiko Koizumi
- Department of Orthopaedic and Spine Surgery, Yokohama Rosai Hospital, 3-2-1-1 Kozukue, Kohoku-ku, Kanagawa 222-0036, Japan
| | - Norio Yamamoto
- Scientific Research Works Peer Support Group (SRWS-PSG), Osaka, Japan; Department of Orthopedic Surgery, Miyamoto Orthopedic Hospital, 4-2-63 Kunitomi, Naka-ku, Okayama, Okayama 773-8236, Japan; Department of Epidemiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan.
| | - Kota Miyoshi
- Department of Orthopaedic and Spine Surgery, Yokohama Rosai Hospital, 3-2-1-1 Kozukue, Kohoku-ku, Kanagawa 222-0036, Japan
| | - Kensuke Kawabata
- Department of Orthopaedic and Spine Surgery, Yokohama Rosai Hospital, 3-2-1-1 Kozukue, Kohoku-ku, Kanagawa 222-0036, Japan
| | - Takeyuki Tanaka
- Department of Orthopaedic Surgery, Sensory and Motor System Medicine, Surgical Sciences, Graduate School of Medicine, The University of Tokyo, Japan
| | - Sakae Tanaka
- Department of Orthopaedic Surgery, Sensory and Motor System Medicine, Surgical Sciences, Graduate School of Medicine, The University of Tokyo, Japan
| | - Akihiro Shiroshita
- Scientific Research Works Peer Support Group (SRWS-PSG), Osaka, Japan; Division of Epidemiology, Department of Medicine, Vanderbilt University School of Medicine, USA
| | - Yuki Kataoka
- Scientific Research Works Peer Support Group (SRWS-PSG), Osaka, Japan; Department of Internal Medicine, Kyoto Min-iren Asukai Hospital, Tanaka Asukai-cho 89, Sakyo-ku, Kyoto 606-8226, Japan; Section of Clinical Epidemiology, Department of Community Medicine, Kyoto University Graduate School of Medicine, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan; Department of Healthcare Epidemiology, Kyoto University Graduate School of Medicine/Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
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Hallab NJ, Hallab SR, Alexander A, Pourzal R. Characterization of residual debris on packaged hip arthroplasty stems demonstrates the dominance of less than 10 μm sized particulate: Updated USP788 guidelines for orthopedic implants. J Biomed Mater Res B Appl Biomater 2024; 112:e35387. [PMID: 38340016 DOI: 10.1002/jbm.b.35387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 10/19/2023] [Accepted: 01/27/2024] [Indexed: 02/12/2024]
Abstract
Past evaluation of particle contamination on packaged implants has typically been conducted using US Pharmacopeia (USP) 788, a 1970s pharmaceutical guideline created to evaluate contaminant particles in injectable fluids and syringes. Our objective was to reestablish relevant acceptance criteria for residual orthopedic and other implant debris, including smaller particles (i.e., <10 μm in diameter). Packaged total hip arthroplasty (THA) titanium (Ti6Al4V)-alloy femoral stems were used (hydroxyapatite [HA]-coated and non-coated stems). Short-term ultrasonication and longer-term 24-hour soak/agitation methods were used to elute surface-bound contaminant particles, and released particles were analyzed via scanning electron microscopy, energy-dispersive x-ray analysis, image analysis, and particle characterization. For HA-coated THA-stems, >99% of eluted particles were calcium phosphate. For plain non-coated THA-stems, >99% of eluted particles were titanium-alloy-based. The number-based median size of particles in both groups was approximately 1.5 μm in diameter despite being composed of different materials. The total volume of particulate removed from HA-coated stems was 0.037 mm3 (671 × 103 particles total), which was approximately >50-fold more volume than that on plain non-coated stems at 0.0006 mm3 (89 × 103 particles total). Only non-coated THA stems passed reestablished USP788 acceptance criteria, compared by using equivalent total volumes of contaminant particulate within new and legacy guideline ranges of >10 and >25 μm ECD, that is, <1.0 × 107 particles for <1 μm diameter in size, <600,000 for <1-10 μm, <6000 for 10-25 μm and <600 for >25 μm. These results fill a knowledge gap on how much residual debris can be expected to exist on packaged implants and can be used as a basis for updating acceptance criteria (i.e., termed USP788-Implant [USP788-I]). Residual implant particulate assessment is critical given the increasing implant complexity and new manufacturing techniques (e.g., additive manufacturing).
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Affiliation(s)
- Nadim J Hallab
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
- Department of Biomedical Engineering, Bioengineering Solutions Inc, Chicago, Illinois, USA
| | - Salem R Hallab
- Department of Biomedical Engineering, Bioengineering Solutions Inc, Chicago, Illinois, USA
| | - Anastasia Alexander
- Department of Biomedical Engineering, Bioengineering Solutions Inc, Chicago, Illinois, USA
| | - Robin Pourzal
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
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Masuda S, Iwakiri K, Ohta Y, Minoda Y, Kobayashi A, Nakamura H. Stem alignment with short tapered-wedge cementless stems affects bone mineral density continuously for at least 5 years after primary total hip arthroplasty. Hip Int 2024; 34:57-65. [PMID: 37293785 DOI: 10.1177/11207000231178984] [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] [Indexed: 06/10/2023]
Abstract
AIM This study aimed to assess the relationship between the three-dimensional (3D) alignment of short tapered-wedge cementless stems and bone mineral density (BMD) changes in patients followed up for 5 years after total hip arthroplasty (THA). METHODS We retrospectively analysed the hips of 52 patients who underwent THA using short tapered-wedge cementless stems at our institution from 2013 to 2016 with complete 5-year follow-up data. We evaluated the relationship between stem alignment, measured using a 3D-templating software, and BMD changes in the 7 Gruen zones. RESULTS After 1 year, significant negative correlations between varus insertion and a decrease in BMD in zone 7 and between flexed insertion and decreases in BMD in zones 3 and 4 were noted. After 5 years, significant negative correlations between varus insertion and a decrease in BMD in zone 7 and between flexed insertion and decreases in BMD zones 2, 3, and 4 were observed. With increased amounts of varus/flexion stem alignment, the amount of BMD loss decreased. There was no correlation between anteverted stem insertion and changes in BMD levels. CONCLUSIONS Our data showed that stem alignment affects BMD based on 5-year follow-up data after surgery. Careful observation is necessary, especially when using short tapered-wedge cementless stems, as stem alignment may affect changes in BMD levels more than 5 years after surgery.
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Affiliation(s)
- Sho Masuda
- Department of Orthopaedic Surgery, Shiraniwa Hospital Joint Arthroplasty Centre, Nara, Japan
- Department of Orthopaedic Surgery, Osaka Saiseikai Nakatsu Hospital, Osaka, Japan
| | - Kentaro Iwakiri
- Department of Orthopaedic Surgery, Shiraniwa Hospital Joint Arthroplasty Centre, Nara, Japan
| | - Yoichi Ohta
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Japan
| | - Yukihide Minoda
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Japan
| | - Akio Kobayashi
- Department of Orthopaedic Surgery, Shiraniwa Hospital Joint Arthroplasty Centre, Nara, Japan
| | - Hiroaki Nakamura
- Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, Japan
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11
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Ciriello V, Saracco M, Leonardi E, Piovani L, Fetz-Palazola A, Mareno C, Logroscino G. Mid-Term Outcomes of a Modern Zweymüller Monolithic Femoral Stem in Primary Total Hip Arthroplasty. PROSTHESIS 2023; 6:53-62. [DOI: 10.3390/prosthesis6010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2023]
Abstract
Background: Prosthetic hip replacement is a widely practiced surgical procedure with excellent results. Hip stems based on the Zweymüller design have a long history and their philosophy focuses on achieving long-term stability promoting physiological load transfer. The aim of this study is to evaluate outcomes, survivorship, and complication rates in a cohort of patients treated with this stem. Methods: A retrospective review was conducted to identify patients who underwent primary THA with Zweymüller stems. A total of 86 hips (43%) were implanted in men, and 114 hips (57%) in women. The mean follow-up time was 5.4 years. Patient charts were reviewed for adverse events occurring after primary THA as well as for revision and indication for revision. Patients still implanted with the hip stem were asked to complete the HOOS JR survey. Results: Ten hips (5.0%) were lost to follow up. The mean HOOS JR score at final evaluation was 96.3 points (range, 60.0–100.0). Two revisions were performed during the study for femoral stem loosening due to a periprosthetic Vancouver B2 fracture and for multiple hip dislocations. Conclusions: The Zweymüller design hip stem showed excellent survivorship and favorable clinical outcomes at a mean follow-up of 5.4 years.
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Affiliation(s)
- Vincenzo Ciriello
- Department of Trauma and Orthopaedics, “Maria Vittoria” Hospital, Asl Città di Torino, 10144 Torino, Italy
| | - Michela Saracco
- Department of Orthopaedics, ASL Napoli 2 Nord, 80127 Napoli, Italy
| | - Enrico Leonardi
- Azienda Ospedaliera “Santa Croce e Carle”, 12100 Cuneo, Italy
| | - Lucio Piovani
- Azienda Ospedaliera “Santa Croce e Carle”, 12100 Cuneo, Italy
| | | | - Chase Mareno
- MicroPort Orthopedics Inc., Arlington, TN 38200, USA
| | - Giandomenico Logroscino
- Department of Life, Health and Environmental Sciences—Mininvasive Orthopaedic Surgery, University of L’Aquila, 67100 L’Aquila, Italy
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12
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Ciriello V, Saracco M, Leonardi E, Piovani L, Fetz-Palazola A, Mareno C, Logroscino G. Mid-Term Outcomes of a Modern Zweymüller Monolithic Femoral Stem in Primary Total Hip Arthroplasty. PROSTHESIS 2023; 6:53-62. [DOI: • ciriello v, saracco m, leonardi e, piovani l, palazola af, mareno c, logroscino g.mid-term outcomes of a modern zweymüller monolithic femoral stem in primary total hip arthroplasty.prosthesis 2024, 6(1), 53-62; https:/doi.org/10.3390/prosthesis6010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2023]
Abstract
Background: Prosthetic hip replacement is a widely practiced surgical procedure with excellent results. Hip stems based on the Zweymüller design have a long history and their philosophy focuses on achieving long-term stability promoting physiological load transfer. The aim of this study is to evaluate outcomes, survivorship, and complication rates in a cohort of patients treated with this stem. Methods: A retrospective review was conducted to identify patients who underwent primary THA with Zweymüller stems. A total of 86 hips (43%) were implanted in men, and 114 hips (57%) in women. The mean follow-up time was 5.4 years. Patient charts were reviewed for adverse events occurring after primary THA as well as for revision and indication for revision. Patients still implanted with the hip stem were asked to complete the HOOS JR survey. Results: Ten hips (5.0%) were lost to follow up. The mean HOOS JR score at final evaluation was 96.3 points (range, 60.0–100.0). Two revisions were performed during the study for femoral stem loosening due to a periprosthetic Vancouver B2 fracture and for multiple hip dislocations. Conclusions: The Zweymüller design hip stem showed excellent survivorship and favorable clinical outcomes at a mean follow-up of 5.4 years.
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Affiliation(s)
- Vincenzo Ciriello
- Department of Trauma and Orthopaedics, “Maria Vittoria” Hospital, Asl Città di Torino, 10144 Torino, Italy
| | - Michela Saracco
- Department of Orthopaedics, ASL Napoli 2 Nord, 80127 Napoli, Italy
| | - Enrico Leonardi
- Azienda Ospedaliera “Santa Croce e Carle”, 12100 Cuneo, Italy
| | - Lucio Piovani
- Azienda Ospedaliera “Santa Croce e Carle”, 12100 Cuneo, Italy
| | | | - Chase Mareno
- MicroPort Orthopedics Inc., Arlington, TN 38200, USA
| | - Giandomenico Logroscino
- Department of Life, Health and Environmental Sciences—Mininvasive Orthopaedic Surgery, University of L’Aquila, 67100 L’Aquila, Italy
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13
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Soma D, Ichiseki T, Ueda S, Sakurai M, Kawahara N. Radiographic Evaluation and Changes in Bone Density of the Humeral Side after Reverse Total Shoulder Arthroplasty. J Clin Med 2023; 12:7698. [PMID: 38137767 PMCID: PMC10743489 DOI: 10.3390/jcm12247698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
After artificial joint surgery, bone density may decrease around the artificial joint; thus, postoperative bone density evaluation around the artificial joint is crucial. We investigated changes in bone mineral density and performed radiographic evaluation around the stem after reverse shoulder arthroplasty (RSA) surgery in 17 males (18 shoulders) and 19 females (19 shoulders), aged >65 years, with >1-year follow-up. In total, 20 and 17 cases involved massive rotator cuff tears and rotator cuff tear arthropathy, respectively. The Comprehensive Reverse Shoulder System (Standard Ingrowth) was used for all cases and cement was used in eight patients due to bone fragility. We examined lucent lines, loosening, bone resorption, and spot welds in non-cemented cases using plain radiography and postoperative bone density changes around the stem using dual-energy X-ray absorptiometry (DEXA). Lucent lines and bone resorption occurred in 5 (13.5%) and 19 (51.4%) shoulders, respectively. No loosening occurred. Compared to stem bone density at 2 weeks postoperatively, the decrease rate was the largest in the proximal medial humerus. One-year postoperative bone density was not related to sex, age, cement use, or preoperative diagnosis. Higher preoperative bone density was better maintained postoperatively. Furthermore, 1 year post RSA, spot welds were observed in approximately 48.2% of cases at the distal medial portion of the stem coating, and bone resorption occurred in the proximal medial humerus in 43.2% of cases. Therefore, postoperative bone density is related to preoperative bone density, suggesting the importance of maintaining high preoperative bone density.
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Affiliation(s)
- Daisuke Soma
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku 1-1, Uchinada-machi, Kahoku-gun 920-0293, Ishikawa, Japan; (D.S.)
| | - Toru Ichiseki
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku 1-1, Uchinada-machi, Kahoku-gun 920-0293, Ishikawa, Japan; (D.S.)
| | - Shusuke Ueda
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku 1-1, Uchinada-machi, Kahoku-gun 920-0293, Ishikawa, Japan; (D.S.)
| | - Masaru Sakurai
- Social and Environmental Medicine, Kanazawa Medical University, Daigaku 1-1, Uchinada-machi, Kahoku-gun 920-0293, Ishikawa, Japan;
| | - Norio Kawahara
- Department of Orthopaedic Surgery, Kanazawa Medical University, Daigaku 1-1, Uchinada-machi, Kahoku-gun 920-0293, Ishikawa, Japan; (D.S.)
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14
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Moon JK, Yoon JY, Jeon JW, Kook I, Kim CH. Differences in periprosthetic bone mineral density tendencies with Types 1 and 3C stems in bipolar hemiarthroplasty following hip fracture. Sci Rep 2023; 13:16990. [PMID: 37813957 PMCID: PMC10562362 DOI: 10.1038/s41598-023-44311-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 10/06/2023] [Indexed: 10/11/2023] Open
Abstract
The purpose of this study was to compare the periprosthetic bone mineral density (BMD) changes in the patients who underwent bipolar hemiarthroplasty (BPHA) for geriatric femoral neck fracture between two major different types of cementless femoral stems. A total of 93 patients (96 hips) who underwent BPHA for femoral neck fracture were categorized into two groups: Type 1 (42 patients, 44 hips), and Type 3C stem (51 patients, 52 hips). We investigated the annual follow-up trends of periprosthetic BMD at each Gruen zone during minimum postoperative 5-years; moreover, we compared the trends of periprosthetic BMD between both groups. The mean follow-up period was 7.1 years. In both groups, the overall BMD at the last follow-up had decreased compared with the baseline. In those with the Type 1 stem, BMD in the lateral femoral meta-diaphysis significantly decreased at 1-year follow-up after surgery. In those with Type 3C stem, BMD in the lateral femoral metaphysis postoperatively decreased after 3-years, whereas the BMD in the mediolateral femoral diaphysis drastically decreased postoperative 1-year period and plateaued thereafter. Different tendencies according to stem design were observed obviously in the postoperative BMD change of the proximal femur in patients who underwent BPHA for geriatric femoral neck fracture.
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Affiliation(s)
- Jun-Ki Moon
- Department of Orthopedic Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Jae Youn Yoon
- Department of Orthopedic Surgery, Seoul Now Hospital, Anyang-si, Gyeonggido, Republic of Korea
| | - Jin Woong Jeon
- Department of Orthopedic Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Incheol Kook
- Department of Orthopedic Surgery, Hanyang University Hospital, Seoul, Republic of Korea
| | - Chul-Ho Kim
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea.
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15
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Baba K, Mori Y, Chiba D, Kuwahara Y, Kurishima H, Tanaka H, Kogure A, Kamimura M, Yamada N, Ohtsu S, Oyama M, Masahashi N, Hanada S, Itoi E, Aizawa T. TiNbSn stems with gradient changes of Young's modulus and stiffness reduce stress shielding compared to the standard fit-and-fill stems. Eur J Med Res 2023; 28:214. [PMID: 37400903 DOI: 10.1186/s40001-023-01199-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 06/26/2023] [Indexed: 07/05/2023] Open
Abstract
BACKGROUND The difference between Young's moduli of the femur and the stem causes stress shielding (SS). TiNbSn (TNS) stem has a low Young's modulus and strength with gradient functional properties during the change in elastic modulus with heat treatment. The aim of this study was to investigate the inhibitory effect of TNS stems on SS and their clinical outcomes compared to conventional stems. METHODS This study was a clinical trial. Primary THA was performed using a TNS stem from April 2016 to September 2017 for patients in the TNS group. Unilateral THA was performed using a Ti6Al4V alloy stem from January 2007 to February 2011 for patients in the control group. The TNS and Ti6Al4V stems were matched in shape. Radiographs were obtained at the 1- and 3-year follow-ups. Two surgeons independently checked the SS grade and appearance of cortical hypertrophy (CH). The Japanese Orthopaedic Association (JOA) scores before and 1 year after surgery were assessed as clinical scores. RESULTS None of the patients in the TNS group had grade 3 or 4 SS. In contrast, in the control group, 24% and 40% of patients had grade 3 and 4 SS at the 1- and 3-year follow-ups, respectively. The SS grade was lower in the TNS group than in the control group at the 1- and 3-year follow-ups (p < 0.001). The frequencies of CH in both groups were no significant difference at the 1- and 3-year follow-ups. The JOA scores of the TNS group significantly improved at 1 year after surgery and were comparable to control group. CONCLUSION The TNS stem reduced SS at 1 and 3 years after THA compared to the proximal-engaging cementless stem, although the shapes of the stems matched. The TNS stem could reduce SS, stem loosening, and periprosthetic fractures. TRIAL REGISTRATION Current Controlled Trials. ISRCTN21241251. https://www.isrctn.com/search?q=21241251 . The date of registration was October 26, 2021. Retrospectively registered.
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Affiliation(s)
- Kazuyoshi Baba
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Yu Mori
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Daisuke Chiba
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Yoshiyuki Kuwahara
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Hiroaki Kurishima
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Hidetatsu Tanaka
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Atsushi Kogure
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Masayuki Kamimura
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Norikazu Yamada
- Department of Orthopaedic Surgery, Sendai Red Cross Hospital, 2‑43‑3 Yagiyamahoncho, Taihaku‑ku, Sendai, Miyagi, 982-8501, Japan
| | - Susumu Ohtsu
- Department of Orthopaedic Surgery, Osaki Citizen Hospital, 3-8-1 Furukawahonami, Osaki, Miyagi, 989-6183, Japan
| | - Masamizu Oyama
- Department of Orthopaedic Surgery, Sendai Red Cross Hospital, 2‑43‑3 Yagiyamahoncho, Taihaku‑ku, Sendai, Miyagi, 982-8501, Japan
| | - Naoya Masahashi
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
| | - Shuji Hanada
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi, 980-8577, Japan
| | - Eiji Itoi
- Department of Orthopaedic Surgery, Tohoku Rosai Hospital, 4-3-21 Dainohara, Aoba-ku, Sendai, Miyagi, 981-0911, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
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16
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Orita K, Goto K, Kuroda Y, Kawai T, Okuzu Y, Takaoka Y, Matsuda S. Long-term outcome of primary total hip arthroplasty with cementless bioactive glass ceramic bottom-coated implants and highly cross-linked polyethylene: A minimum 10-year analysis. J Orthop Sci 2023; 28:385-390. [PMID: 35058113 DOI: 10.1016/j.jos.2021.12.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 11/30/2021] [Accepted: 12/22/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND Cementless glass ceramics containing apatite and wollastonite (AW-GC) bottom-coated titanium hip implants were developed; early excellent clinical and radiographic results have been reported previously. This study aimed to investigate the long-term clinical and radiographic outcomes in detail, and the wear rate of HXLPE. METHODS We retrospectively evaluated 99 patients (117 hips) between November 2001 and December 2007. The survival rate was estimated using the Kaplan-Meier method. Hip joint function was evaluated using the Japanese Orthopaedic Association (JOA) score. The extent of radiographic signs was determined from the radiographs performed at the last follow-up. Polyethylene wear was measured using Martell's Hip Analysis Suite. We assessed the possible factors affecting the steady-state linear wear rate. RESULTS The mean follow-up period was 14.8 ± 2.1 (10-18.6) years. The mean JOA score improved to 88.7 ± 9.4 (59-100) at the final follow-up from 47.8 ± 12.5 (17-76) before surgery. The overall survival rate with the end point of all-cause revision and wear-related revision was 99% and 100% respectively. There was no osteolysis or loosening of either the acetabular or femoral component. All hips were classified as having bone ingrowth fixation. The mean steady-state wear rate was 0.008 ± 0.025 mm/year. We found no significant correlation between the wear rate and age, body weight, body mass index, cup inclination and femoral head size. CONCLUSION The combination of AW-GC bottom-coated implants and HXLPE showed excellent implant survival and wear resistance for 15 years.
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Affiliation(s)
- Kazuki Orita
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Koji Goto
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yutaka Kuroda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Toshiyuki Kawai
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yaichiro Okuzu
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yusuke Takaoka
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
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17
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Sugimine Y, Nakano S, Goto H, Sato R, Enishi T, Goto T, Sairyo K. Middle-term outcome and complications after primary total hip arthroplasty using a contemporary titanium tapered wedge cementless femoral stem. THE JOURNAL OF MEDICAL INVESTIGATION 2023; 70:471-475. [PMID: 37940534 DOI: 10.2152/jmi.70.471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
The purpose of this study is to evaluate the results and intraoperative or postoperative complications of primary total hip arthroplasty (THA) using a contemporary tapered wedge titanium femoral component. A total of 213 THAs in 187 patients were followed up more than 5 years (mean, 102 months ; range, 60-150). The mean age at surgery was 64.2 years (range, 20?89 years). These patients were clinically evaluated using the JOA scoring system and radiographically host bone reactions around the implants, as well as femoral loosening. The mean JOA score improved from 49 (range, 21?75) to 92 (range, 59?100). All 12 patients with poor results (JOA < 75) coexisted with cerebral, spinal, joint, and musculoskeletal disorders. At the final follow-up, implant survival was 100%. Complications occurred in 23 hips. They consisted of 12 hips with intra-operative fractures, 2 hips with sciatic nerve palsy, one hip with infections, 3 hips with recurrent dislocations, and 8 hips with aseptic cup loosening. In conclusion, we have shown excellent survival rate of the contemporary tapered wedge stem in primary THA ; however, patients with coexisting diseases could not acquire sufficient improvement in hip function and ambulatory ability. J. Med. Invest. 70 : 471-475, August, 2023.
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Affiliation(s)
- Yuto Sugimine
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Shunji Nakano
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Hitoshi Goto
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Ryosuke Sato
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Tetsuya Enishi
- Department of Rehabilitation Medicine, Tokushima Municipal Hospital, Tokushima, Japan
| | - Tomohiro Goto
- Department of Orthopedics, Tokushima Municipal Hospital, Tokushima, Japan
| | - Koichi Sairyo
- Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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18
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Kuroda Y, Hashimoto S, Hayashi S, Nakano N, Fujishiro T, Hiranaka T, Kuroda R, Matsumoto T. Fully hydroxyapatite-coated compaction broached and triple-tapered stem may reduce the risk of stress shielding after primary total hip arthroplasty. Arch Orthop Trauma Surg 2022; 142:4087-4093. [PMID: 35066641 DOI: 10.1007/s00402-021-04308-x] [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: 06/05/2021] [Accepted: 12/04/2021] [Indexed: 02/08/2023]
Abstract
PURPOSE Changes in bone mineral density (BMD) around the fully hydroxyapatite (HA)-coated compaction broached and triple-tapered stem, namely, Polarstem, after total hip arthroplasty (THA) are currently unknown. Therefore, the aims of this study were to investigate clinical outcomes of Polarstem, mainly postoperative temporal changes in BMD around the stem for 2 years, and to compare them with those of HA-coated and non-HA-coated tapered-wedge stems. METHODS This retrospective cohort study enrolled 100 consecutive patients who underwent THA using Polarstem (n = 38), HA-coated Anthology (n = 31), and non-HA-coated Anthology (n = 31). BMD was evaluated using dual-energy X-ray absorptiometry in seven regions according to the Gruen zones. Postoperatively, BMD around the stem was assessed within 2 months (baseline BMD) and at 6, 12, and 24 months. A change in BMD was defined as the value calculated by dividing each postoperative BMD value at 6, 12, and 24 months by the baseline BMD value. Changes in BMD and radiographic parameters such as stress shielding and spot welds were compared among the three stems. RESULTS The incidence rate of stress shielding in the Polarstem group was significantly lower than those in the other two groups (p = 0.007). The change in BMD in Zone 7 of Polarstem was significantly more than that of the other two groups at 12 and 24 months postoperatively (p = 0.030 and p = 0.009, respectively). CONCLUSION Polarstem, a fully HA-coated compaction broached and triple-tapered stem, maintained BMD around the femoral calcar until 2 years postoperatively and could reduce the risk of stress shielding compared with tapered-wedge stems.
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Affiliation(s)
- Yuichi Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
| | - Shingo Hashimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Shinya Hayashi
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Naoki Nakano
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Takaaki Fujishiro
- Department of Orthopaedic Surgery, Takatsuki General Hospital, Osaka, Japan
| | - Takafumi Hiranaka
- Department of Orthopaedic Surgery, Takatsuki General Hospital, Osaka, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
| | - Tomoyuki Matsumoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
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19
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Liu Y, Wei WX, Zeng Y, Ma J, Yang J, Shen B. Comparison of Femoral Bone Mineral Density Changes around 3 Common Designs of Cementless Stems after Total Hip Arthroplasty-A Retrospective Cohort Study. Orthop Surg 2022; 14:1059-1070. [PMID: 35466536 PMCID: PMC9163965 DOI: 10.1111/os.13265] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/16/2022] [Accepted: 03/21/2022] [Indexed: 02/04/2023] Open
Abstract
Objective The aim of this study was to compare the periprosthetic BMD changes around Tri‐Lock “Bone Preserving Stem” with the other two common and longer stems (Corail and Summit) after THA. Methods It was a retrospective cohort study followed patients underwent the total hip arthroplasty from January 2013 to December 2015. They were selected and followed from January 2013 to Janaury 2020. Patients without osteoporosis underwent hip replacements with three aimed stems were included. Among the 138 patients included, 49 patients received the Tri‐Lock stem, 44 patients received the Corail stem, and 45 patients received the Summit stem. The periprosthetic BMD changes evaluated by the Dual energy X‐ray absorptiometry (iDXA) measurement according to the seven Gruen zones was the primary outcome. The Radiographic changes including spot welds, pedestal sign and grade of stress shielding was evaluated by the consecutive hip images. Einzel‐Bild‐Roentgen‐Analyze‐femoral component analysis (EBRA‐FCA) was used to measure the stem migration at 5 years postoperatively. Patient‐reported outcomes (PROMs) and adverse events were assessed and compared in three groups. Finally, the subgroups for the periprosthetic BMD changes, radiological and clinical outcomes were made based on the age, gender and length of follow‐up. Results A total of 138 patients were retrospectively followed for an average of 4.66 years. Excepting the different stems used in three groups, the age, gender and other characteristics of patients included were similar between groups. There was no significant difference between the three groups in periprosthetic BMD changes over postoperative 5 years. The Summit stem shown more BMD loss in Gruen zone 1 compared with the Tri‐Lock and Corail stems without significant difference (7.49%, −1.89% and −2.62%, respectively, P = 0.42). And the most prominent BMD loss was found in Gruen zone 7 for all three stems (−12.60%, −11.84%, and −9.56%, respectively, P = 0.91). The spot weld was significantly more common around the Corail stem, while there was no difference in the stem migration between three groups. Patient reported outcomes (PROMs) were significantly improved compared with the preoperative values. Regarding the rate of postoperative complications, two patients underwent the dislocation and 25 patients sometimes felt mild to moderate thigh pain. Subgroup analysis showed that female patients older than 50 years lost more BMD and had lower clinical scores, while the stem stability was not good enough in male patients. Conclusions The Tri‐Lock Bone Preserving Stem did not show significant difference in periprosthetic BMD changes compared with the other two conventional longer stems at 5 years after THA.
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Affiliation(s)
- Yuan Liu
- Orthopedics Research Institute, Department of Orthopedics, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wen-Xing Wei
- Orthopedics Research Institute, Department of Orthopedics, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yi Zeng
- Orthopedics Research Institute, Department of Orthopedics, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jun Ma
- Orthopedics Research Institute, Department of Orthopedics, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jing Yang
- Orthopedics Research Institute, Department of Orthopedics, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bin Shen
- Orthopedics Research Institute, Department of Orthopedics, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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20
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Sariali E, Pascal Moussellard H. Higher femoral anteversion restoration accuracy after total hip arthroplasty with a proximally fixed anatomic stem than with a generic straight double-tapered stem. Hip Int 2022:11207000221078920. [PMID: 35437058 DOI: 10.1177/11207000221078920] [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] [Indexed: 02/04/2023]
Abstract
BACKGROUND Femoral antetorsion in uncemented hip replacement hardly can be modified and the restoration of the anatomic anteversion might be difficult with standard stems. We compared femoral anteversion restoration of a generic straight stem with a proximally fixed anatomic stem that included a dual sagittal curvature and a proximal torsion. It was hypothesised that the restoration of the anteversion was more accurate with the anatomic stem. PATIENTS AND METHODS In this comparative study data were collected prospectively of 80 consecutive patients with total hip arthroplasty for primary osteoarthritis. In the first 40 patients (Group I) a cementless proximally fixed anatomic stem with 15° antetorsion of the shaft and a dual sagittal curvature was used. Its design was based on a database of 3D CT images of 600 hips. For comparison a cementless generic straight double-tapered stem was implanted in the next 40 patients (Group II). All operations were performed by one experienced surgeon. All patients had a preoperative 3D planning. A low-dose CT scan was performed at 3 months postoperatively to determine the postoperative stem anteversion. RESULTS The demographics were similar in both groups. In group I the mean postoperative femoral anteversion was similar to the preoperative one (22.1° ± 10.2° vs. 20.4° ± 9°; p = 0.2). In Group II, the mean postoperative femoral anteversion was lower (12.9° ± 10.8°, vs. 18.3° ± 12°; p = 0.02). CONCLUSIONS Uncemented standard femoral stems tend to reduce femoral anteversion. The used anatomic stem restored femoral anteversion better. The clinical impact of this finding has to be proven.
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Affiliation(s)
- Elhadi Sariali
- Orthopaedic Surgery, Pitié-Salpêtrière University Hospital, Paris, France
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21
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Motomura G, Mashima N, Imai H, Sudo A, Hasegawa M, Yamada H, Morita M, Mitsugi N, Nakanishi R, Nakashima Y. Effects of porous tantalum on periprosthetic bone remodeling around metaphyseal filling femoral stem: a multicenter, prospective, randomized controlled study. Sci Rep 2022; 12:914. [PMID: 35042918 PMCID: PMC8766592 DOI: 10.1038/s41598-022-04936-2] [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] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/23/2021] [Indexed: 11/09/2022] Open
Abstract
Periprosthetic bone loss due to adaptive bone remodeling is an important unresolved issue in cementless total hip arthroplasty (THA). The use of porous tantalum on the proximal surface of the femoral stem is expected to decrease postoperative bone loss around the prosthesis through early fixation. We conducted a multicenter randomized controlled study to determine if porous tantalum could reduce periprosthetic bone loss after THA. From October 2012 to September 2014, 118 patients (mean age, 61.5 years; 107 females and 11 males) were prospectively enrolled and were randomly allocated at a ratio of 1:1 to either a metaphyseal filling stem with a proximal porous tantalum coating (Trabecular Metal) or a conventional metaphyseal filling stem with fiber mesh coating (VerSys). Patients underwent dual-energy x-ray absorptiometry scans within 1 week after surgery (baseline) and at 6, 12, and 24 months after surgery to assess periprosthetic bone mineral density (BMD) in the 7 Gruen zones. In addition, the Japanese Orthopaedic Association hip score was assessed before surgery and at 6, 12, and 24 months after surgery. In the proximal periprosthetic region (zones 1 and 7), the Trabecular Metal group had significantly smaller reductions in BMD than the VerSys group throughout the study period. In the VerSys group, significant reductions in BMD compared to baseline were seen at each measurement point in all regions, except in zone 6 at 24 months. In the Trabecular Metal group, no significant reductions in BMD relative to baseline were seen in zones 1, 5, or 6 throughout the study period. Both groups demonstrated similar improvement in Japanese Orthopaedic Association hip scores over the study period. This study demonstrated that a proximally coated stem with porous tantalum has superior results over a conventional stem with titanium fiber mesh in terms of periprosthetic bone remodeling.
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Affiliation(s)
- Goro Motomura
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Naohiko Mashima
- Department of Regeneration of Community Medicine, Ehime University Graduate School of Medicine, Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Hiroshi Imai
- Department of Orthopaedic Surgery, Graduate School of Medicine, Ehime University, Shitsukawa, Toon, 791-0295, Japan
| | - Akihiro Sudo
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan
| | - Masahiro Hasegawa
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan
| | - Harumoto Yamada
- Department of Orthopaedic Surgery, Fujita Health University, Toyoake, Aichi, 470-1192, Japan
- Department of Orthopedic Surgery, Nisshin Orido Hospital, 110, Nishidamen, Orido-cho, Nisshin, Aichi, 470-0115, Japan
| | - Mitsuhiro Morita
- Department of Orthopaedic Surgery, Fujita Health University, Toyoake, Aichi, 470-1192, Japan
| | - Naoto Mitsugi
- Department of Orthopedic Surgery, Yokohama City University Medical Center, 4-57, Urafune-cho, Minami, Yokohama, Kanagawa, 232-0024, Japan
- Department of Orthopedic Surgery, Osada Hospital, 2-10, Maruyamadai, Minatominami-ku, Yokohama, Kanagawa, 233-0013, Japan
| | - Ryosuke Nakanishi
- Department of Orthopaedic Surgery, Showa University Fujigaoka Hospital, Showa University School of Medicine, 1-30 Fujigaoka Aobaku, Yokohama, 227-8501, Japan
- Department of Orthopedic Surgery, Shizuoka Medical Center, 762-1, Nagasawa, Shimizu-cho, Sunto District, Shizuoka, 411-8611, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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Liu Y, Xu JW, Li MY, Wu LM, Zeng Y, Shen B. Zoledronic Acid for Periprosthetic Bone Mineral Density Changes in Patients With Osteoporosis After Hip Arthroplasty-An Updated Meta-Analysis of Six Randomized Controlled Trials. Front Med (Lausanne) 2022. [PMID: 35004777 DOI: 10.3389/fmed.2021.80128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
Abstract
Introduction: Periprosthetic bone mineral density (BMD) loss following total hip arthroplasty (THA) may threaten the survival of the implant, especially in patients with osteoporosis. Zoledronic acid (ZA) is the representative of the third generation of bisphosphonates, which were effective in reducing bone loss in conditions associated with accelerated bone turnover. The aim of this study was to evaluate the efficacy and safety of ZA in patients with osteoporosis after THA. Methods: Randomized controlled trials (RCTs) associated with ZA and THA were searched from the MEDLINE, PubMed, EMBASE, Wanfang database, and the Web of Science (August 2021). Other methods, such as hand search and email request were also tried. The methodological quality was assessed by the Risk of Bias (RoB) 2.0. Relevant data were abstracted from the included RCTs and authors were contacted when necessary. Results: In this study, six RCTs involving a total of 307 patients were finally included and analyzed. The pooled data demonstrated that significantly less periprosthetic BMD loss in Gruen zone seven had occurred in the ZA-treated patients than in the control patients at 3 months (mean difference [MD] = 4.03%; 95% CI: 0.29-7.76%; P = 0.03), 6 months (MD = 7.04%; 95% CI: 2.12-11.96%; P = 0.005), and 12 months (MD = 7.12%; 95% CI: 0.33-13.92%; P = 0.04). The Harris Hip Score (HHS) was also significantly increased in ZA group at 6 and 12 months after operation (P = 0.03 and P = 0.02, respectively). Influenza-like symptom was found related to the usage of ZA [relative risk (RR) = 7.03, P < 0.0001]. Conclusion: A meta-analysis of six RCTs suggested that ZA was beneficial in maintaining the periprosthetic BMD in patients with osteoporosis at 6 and 12 months after THA. In addition, the HHS was significantly improved in patients treated with ZA. However, the short length of follow-up of the available studies resulted in the lack of analyses regarding the survival of implants including the rate of aseptic loosing, periprosthetic fracture, and revision. It still needs to be determined in research with longer follow-up period. Clinical Trial Registration: Researchregistry.com, identifier: reviewregistry1087.
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Affiliation(s)
- Yuan Liu
- Department of Orthopedics, National Clinical Research Center for Geriatrics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Jia-Wen Xu
- Department of Orthopedics, National Clinical Research Center for Geriatrics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Ming-Yang Li
- Department of Orthopedics, National Clinical Research Center for Geriatrics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Li-Min Wu
- Department of Orthopedics, National Clinical Research Center for Geriatrics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Zeng
- Department of Orthopedics, National Clinical Research Center for Geriatrics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
| | - Bin Shen
- Department of Orthopedics, National Clinical Research Center for Geriatrics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
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Liu Y, Xu JW, Li MY, Wu LM, Zeng Y, Shen B. Zoledronic Acid for Periprosthetic Bone Mineral Density Changes in Patients With Osteoporosis After Hip Arthroplasty-An Updated Meta-Analysis of Six Randomized Controlled Trials. Front Med (Lausanne) 2021; 8:801282. [PMID: 35004777 PMCID: PMC8733298 DOI: 10.3389/fmed.2021.801282] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 11/23/2021] [Indexed: 02/05/2023] Open
Abstract
Introduction: Periprosthetic bone mineral density (BMD) loss following total hip arthroplasty (THA) may threaten the survival of the implant, especially in patients with osteoporosis. Zoledronic acid (ZA) is the representative of the third generation of bisphosphonates, which were effective in reducing bone loss in conditions associated with accelerated bone turnover. The aim of this study was to evaluate the efficacy and safety of ZA in patients with osteoporosis after THA. Methods: Randomized controlled trials (RCTs) associated with ZA and THA were searched from the MEDLINE, PubMed, EMBASE, Wanfang database, and the Web of Science (August 2021). Other methods, such as hand search and email request were also tried. The methodological quality was assessed by the Risk of Bias (RoB) 2.0. Relevant data were abstracted from the included RCTs and authors were contacted when necessary. Results: In this study, six RCTs involving a total of 307 patients were finally included and analyzed. The pooled data demonstrated that significantly less periprosthetic BMD loss in Gruen zone seven had occurred in the ZA-treated patients than in the control patients at 3 months (mean difference [MD] = 4.03%; 95% CI: 0.29-7.76%; P = 0.03), 6 months (MD = 7.04%; 95% CI: 2.12-11.96%; P = 0.005), and 12 months (MD = 7.12%; 95% CI: 0.33-13.92%; P = 0.04). The Harris Hip Score (HHS) was also significantly increased in ZA group at 6 and 12 months after operation (P = 0.03 and P = 0.02, respectively). Influenza-like symptom was found related to the usage of ZA [relative risk (RR) = 7.03, P < 0.0001]. Conclusion: A meta-analysis of six RCTs suggested that ZA was beneficial in maintaining the periprosthetic BMD in patients with osteoporosis at 6 and 12 months after THA. In addition, the HHS was significantly improved in patients treated with ZA. However, the short length of follow-up of the available studies resulted in the lack of analyses regarding the survival of implants including the rate of aseptic loosing, periprosthetic fracture, and revision. It still needs to be determined in research with longer follow-up period. Clinical Trial Registration: Researchregistry.com, identifier: reviewregistry1087.
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Affiliation(s)
| | | | | | | | | | - Bin Shen
- Department of Orthopedics, National Clinical Research Center for Geriatrics, Orthopedics Research Institute, West China Hospital, Sichuan University, Chengdu, China
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Lee SW, Kim WY, Song JH, Kim JH, Lee HH. Factors Affecting Periprosthetic Bone Loss after Hip Arthroplasty. Hip Pelvis 2021; 33:53-61. [PMID: 34141691 PMCID: PMC8190495 DOI: 10.5371/hp.2021.33.2.53] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 03/16/2021] [Accepted: 03/29/2021] [Indexed: 12/22/2022] Open
Abstract
Periprosthetic bone loss may lead to major complications in hip arthroplasty, including aseptic loosening, implant migration, and even periprosthetic fracture. Such a complication leads to revision surgeries, which are expensive, technically demanding, and result in a low satisfaction rate. Therefore, a study was conducted of the factors affecting the periprosthetic bone loss around the stem that caused these complications. Factors influencing periprosthetic bone loss include demographic factors such as age, sex, obesity, smoking, and comorbidity including diabetes and osteoporosis. The implant design and fixation method are also factors that are determined before surgery. In addition, there are surgical factors, such as surgical approach and surgical technique, and we wish to investigate the factors affecting periprosthetic bone loss around the stem by comparing the effects of postoperative rehabilitation protocols and osteoporosis drugs.
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Affiliation(s)
- Se-Won Lee
- Department of Orthopedic Surgery, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Weon-Yoo Kim
- Department of Orthopedic Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Joo-Hyoun Song
- Department of Orthopedic Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Korea
| | - Jae-Hoon Kim
- Department of Orthopedic Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Hwan-Hee Lee
- Department of Orthopedic Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
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25
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Su R, Feng W, Liu X, Song Y, Xu Z, Liu JG. Early Rehabilitation and Periprosthetic Bone Environment after Primary Total Hip Arthroplasty: A Randomized Controlled Trial. Orthop Surg 2021; 13:1521-1531. [PMID: 34075713 PMCID: PMC8313161 DOI: 10.1111/os.12984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 01/19/2021] [Accepted: 02/12/2021] [Indexed: 11/30/2022] Open
Abstract
Objective To investigate whether the periprosthetic bone environment could be affected by activity during the early rehabilitation period after primary total hip arthroplasty (THA) and to evaluate the safety and efficacy of activity during the early rehabilitation period. Methods This random clinical trial was conducted from January 2017 to July 2017. A total of 22 selected patients with advanced osteonecrosis of the femoral head (ONFH) who underwent primary unilateral THA were randomized (1:1) to a high activity level group (HA group) or a low activity level group (LA group). The HA group included nine men and two women, aged 53.18 ± 13.29 years. The LA group included five men and six women, aged 55.73 ± 11.73 years. The intervention was different postoperative daily walking distances guided by researchers: 1727.27 ± 564.08 m 0–2 months and 4272.73 ± 904.53 m 3–6 months postoperation for the HA group and 909.09 ± 583.87 m 0–2 months and 2409.09 ± 1068.13 m 3–6 months postoperation for LA group. The primary outcomes were radiographic evaluation (prosthetic stability and stress shielding based on the Engh scale) and bone mineral density (BMD) with a femoral prosthesis (individual and intergroup comparison using seven Gruen zones) at 6 months postoperatively. Secondary outcomes were set to confirm the safety and efficacy of activity during early rehabilitation, including day 1 erythrocyte sedimentation rate (ESR), day 1 hypersensitive C‐reactive protein (CRP), length of hospital stay (LOS), and the Harris hip score (HHS) at discharge, 2 months postoperatively, and 6 months postoperatively. Results Patients were followed up for 6 months after surgery. Regarding primary outcomes, all prostheses were assessed as stable, with bone in‐growth. There were no adverse events in any cases. The HA group had a higher incidence of stress shielding than the LA group, but there was no statistical significance (63.64% vs 18.18%; P > 0.05). The degree of stress shielding had a different distribution for the two groups (P < 0.05). In the HA group and the LA group, the median percentage difference of the BMD on the operated side was −25% and was −13% in Zone 1, −8% and − 1% in Zone 2, +1% and 3% in Zone 3, +6% and + 6% in Zone 4, −2% and +2% in Zone 5, −3% and −1% in Zone 6, and −24% and −12% in Zone 7 compared with the unoperated side. The BMD was significantly reduced in the medial proximal femur (Zone 1) and the lateral proximal femur (Zone 7) in both groups (P < 0.05). Furthermore, it was increased in the distal femur (Zone 4) in the HA group (P < 0.05). No difference was found in the BMD when comparing between groups. Regarding secondary outcomes, there was no statistical difference in day 1 ESR and day 1 CPR. The average LOS was similar in the HA and LA groups (7.00 days vs 7.18 days, P > 0.05). The HHS on day of discharge was higher in the HA group than in the LA group (60.73 ± 5.37 points vs 51.18 ± 8.05 points, P < 0.05); however, no statistically significant difference was found in postoperative the HHS at 2 months (81.73 ± 6.92 points vs 78.36 ± 9.18 points, P > 0.05) and 6 months (90.45 ± 5.24 points vs 91.55 ± 4.03 points, P > 0.05). Conclusion High activity levels during early rehabilitation after primary THA accelerate the process of bone remodeling and aggravate stress shielding, with no significant benefits for functional recovery.
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Affiliation(s)
- RiLiGe Su
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Jilin, China
| | - Wei Feng
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Jilin, China
| | - Xu Liu
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Jilin, China
| | - Ya Song
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Jilin, China
| | - Zhe Xu
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Jilin, China
| | - Jian-Guo Liu
- Department of Orthopaedic Surgery, The First Hospital of Jilin University, Jilin, China
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Fu G, Li M, Xue Y, Li Q, Deng Z, Ma Y, Zheng Q. Perioperative patient-specific factors-based nomograms predict short-term periprosthetic bone loss after total hip arthroplasty. J Orthop Surg Res 2020; 15:503. [PMID: 33138840 PMCID: PMC7607681 DOI: 10.1186/s13018-020-02034-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 10/20/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Although medical intervention of periprosthetic bone loss in the immediate postoperative period was recommended, not all the patients experienced periprosthetic bone loss after total hip arthroplasty (THA). Prediction tools that enrolled all potential risk factors to calculate an individualized prediction of postoperative periprosthetic bone loss were strongly needed for clinical decision-making. METHODS Data of the patients who underwent primary unilateral cementless THA between April 2015 and October 2017 in our center were retrospectively collected. Candidate variables included demographic data and bone mineral density (BMD) in spine, hip, and periprosthetic regions that measured 1 week after THA. Outcomes of interest included the risk of postoperative periprosthetic bone loss in Gruen zone 1, 7, and total zones in the 1st postoperative year. Nomograms were presented based on multiple logistic regressions via R language. One thousand Bootstraps were used for internal validation. RESULTS Five hundred sixty-three patients met the inclusion criteria were enrolled, and the final analysis was performed in 427 patients (195 male and 232 female) after the exclusion. The mean BMD of Gruen zone 1, 7, and total were decreased by 4.1%, 6.4%, and 1.7% at the 1st year after THA, respectively. 61.1% of the patients (261/427) experienced bone loss in Gruen zone 1 at the 1st postoperative year, while there were 58.1% (248/427) in Gruen zone 7 and 63.0% (269/427) in Gruen zone total. Bias-corrected C-index for risk of postoperative bone loss in Gruen zone 1, 7, and total zones in the 1st postoperative year were 0.700, 0.785, and 0.696, respectively. The most highly influential factors for the postoperative periprosthetic bone loss were primary diagnosis and BMD in the corresponding Gruen zones at the baseline. CONCLUSIONS To the best of our knowledge, our study represented the first time to use the nomograms in estimating the risk of postoperative periprosthetic bone loss with adequate predictive discrimination and calibration. Those predictive models would help surgeons to identify high-risk patients who may benefit from anti-bone-resorptive treatment in the early postoperative period effectively. It is also beneficial for patients, as they can choose the treatment options based on a reasonable expectation following surgery.
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Affiliation(s)
- Guangtao Fu
- Division of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province People’s Republic of China
| | - Mengyuan Li
- Division of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province People’s Republic of China
| | - Yunlian Xue
- Division of Statistics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province People’s Republic of China
| | - Qingtian Li
- Division of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province People’s Republic of China
| | - Zhantao Deng
- Division of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province People’s Republic of China
| | - Yuanchen Ma
- Division of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province People’s Republic of China
| | - Qiujian Zheng
- Division of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province People’s Republic of China
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Panisello JJ, Lopez J, Lillo M, Mateo J, Martin C, Herrera A. Bone Remodeling of Two Anatomic Stems: Densitometric Study of the Redesign of the ABG-II Stem. Arthroplast Today 2020; 6:480-486. [PMID: 32671168 PMCID: PMC7338879 DOI: 10.1016/j.artd.2020.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/10/2020] [Accepted: 05/27/2020] [Indexed: 12/01/2022] Open
Abstract
Background Periprosthetic bone remodeling, which is a phenomenon observed in all femoral stems, has a multifactorial origin as it depends on factors related to the patient, the surgical technique, and the design of the implant. To determine the pattern of remodeling produced by 2 models of anatomic cementless implants, we quantified the changes in bone mineral density (BMD) in the 7 areas of Gruen observed at different moments after surgery during the first postoperative year. Methods A prospective, comparative, controlled, 1-year follow-up densitometric study was carried out in 2 groups of patients suffering from primary unilateral hip osteoarthritis. In the first group, with 68 patients, an ABG-II stem was implanted. In the second, with 66 patients, the ANATO stem was used. The contralateral, healthy hip was taken as a control. Results Both groups showed a decrease in BMD at 3 months in all the areas, which recovered at the end of the study, except in zone 7: there was a 17.7% decrease in the ABG-II group and a 5.9% decrease in the ANATO group. In zones 2 and 6, where more loads are transmitted, conservation of BMD is observed in response to Wolff's law. The differences in the pattern of remodeling between groups were maintained despite the age, gender, and BMI of the patients or the size of the implants. Conclusion The ANATO stem achieved a more efficient transmission of loads at the metaphyseal level, which promotes bone preservation at the proximal femur, than the ABG-II stem.
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Affiliation(s)
- Juan J Panisello
- Adult Hip Unit, Department of Orthopaedic Surgery, Miguel Servet University Hospital, Zaragoza, Spain
| | - Jorge Lopez
- Adult Hip Unit, Department of Orthopaedic Surgery, Miguel Servet University Hospital, Zaragoza, Spain
| | - Marina Lillo
- Adult Hip Unit, Department of Orthopaedic Surgery, Miguel Servet University Hospital, Zaragoza, Spain
| | - Jesus Mateo
- Adult Hip Unit, Department of Orthopaedic Surgery, Miguel Servet University Hospital, Zaragoza, Spain
| | - Carlos Martin
- Adult Hip Unit, Department of Orthopaedic Surgery, Miguel Servet University Hospital, Zaragoza, Spain
| | - Antonio Herrera
- Adult Hip Unit, Department of Orthopaedic Surgery, Miguel Servet University Hospital, Zaragoza, Spain
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Dyreborg K, Petersen MM, Balle SS, Kjersgaard AG, Solgaard S. Observational study of a new modular femoral revision system. World J Orthop 2020; 11:167-176. [PMID: 32280606 PMCID: PMC7138861 DOI: 10.5312/wjo.v11.i3.167] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/25/2020] [Accepted: 03/01/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The uncemented ArcosTM Modular Femoral Revision System (ARCOS) is a new comprehensive, press-fit revision design. The modular design offers a wide range of possible combinations to accommodate different variations of anatomy and bone stock. The ARCOS is made by a proximal body and a distal stem. As probably the only ones worldwide we predominantly use a combination of body and stem which supports proximal fixation and load, since this mimics the concept of the primary total hip arthroplasty with proximal weight-bearing, leading to bone stock preservation and no stress shielding or thigh pain.
AIM To evaluate the early results after femoral revision in a consecutive series of patients undergoing surgery over 3 years.
METHODS We included 116 patients in the study. They were operated in the period August 2011 to December 2014 and we got a clinical mean observation time of 4 (0.5-6) years. Clinical and radiographical follow-up included present function of the hip assessed by Harris Hip Score, Oxford Hip Score, and EQ5D (measure of health outcome). Of the 116 patients, 17 died in the interim and were consequently included only in the implant survivorship analysis; 46 patients attended the follow-up control.
RESULTS In total 6 (5%) hips were re-revised due to infection (n = 3), fracture (n = 2) or subsidence (n = 1). No patient was re-revised due to aseptic loosening. The 1-, 2- and 5-year probability of implant survival (95%CI) were 97% (93%-100%), 97% (93%-100%) and 96% (92%-99%), respectively. In this cohort 95 patients received a combination of a proximal broach and a distal curved and slotted stem (BS), aiming for proximal fixation and load bearing; 21 patients received a different combination. When comparing these two groups the BS-group had a 5-year implant survival probability (95%CI) of 97% (93%-100%) compared with the group of other combinations with a 5-year implant survival probability (95%CI) of 90% (78%-100%) (P = 0.3). Our regression analysis showed that periprosthetic fracture as an indication for the ARCOS operation was the only significant negative outcome predictor. The mean Harris Hip Score result (100 points being best) was 83 (range 5-98). The mean Oxford Hip Score result (48 points being best) was 40 (range 19-48).
CONCLUSION The early results of the ARCOS are promising compared with similar studies. We encourage the use of the BS combination whenever the bone stock proximally is adequate.
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Affiliation(s)
- Karen Dyreborg
- Department of Orthopaedic Surgery, Herlev-Gentofte Hospital, 2900 Hellerup, Denmark
| | | | - Sidse Schwartz Balle
- Department of Diagnostic Radiology, Herlev-Gentofte Hospital, 2900 Hellerup, Denmark
| | | | - Søren Solgaard
- Department of Orthopaedic Surgery, Herlev-Gentofte Hospital, 2900 Hellerup, Denmark
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Fu GT, Lin LJ, Sheng PY, Li CC, Zhang JX, Shen J, Liu S, Xue YL, Lin SP, Wang K, Zheng QJ, Ding Y. Efficiency of Zoledronic Acid in Inhibiting Accelerated Periprosthetic Bone Loss After Cementless Total Hip Arthroplasty in Osteoporotic Patients: A Prospective, Cohort Study. Orthop Surg 2020; 11:653-663. [PMID: 31456320 PMCID: PMC6712387 DOI: 10.1111/os.12513] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 07/09/2019] [Accepted: 07/10/2019] [Indexed: 11/30/2022] Open
Abstract
Objective To investigate the influence of preoperative osteopenia/osteoporosis on periprosthetic bone loss after total hip arthroplasty (THA) and the efficiency of zoledronate (ZOL) treatment in periprosthetic bone preservation. Methods This multicenter, prospective cohort study was conducted in four centers between April 2015 and October 2017. Patients were assigned to Normal BMD, Osteopenia, and Osteoporosis+ZOL groups. Patients with osteopenia received daily oral calcium (600 mg/d) and vitamin D (0.5 μg/d), while patients in the Osteoporosis+ZOL group received additional ZOL annually (5 mg/year). Periprosthetic bone mineral density (BMD) in seven Gruen zones, radiographic parameters, Harris hip score, EuroQol 5‐Dimensions (EQ‐5D) score, and BMD in hip and spine were measured within 7 days, 3 months, 12 months postoperation and annually thereafter. Results A total of 266 patients were enrolled, while 81 patients that completed the first year follow‐up were involved in the statistical analysis. The mean follow‐up time was 1.3 years. There were significant decreases of mean BMD in total Gruen zones (−4.55%, P < 0.05) and Gruen zone 1 (−10.22%, P < 0.01) in patients with osteopenia during the first postoperative year. Patients in the Osteoporosis+ZOL group experienced a marked increase in BMD in Gruen zone 1 (+16%) at the first postoperative year, which had a significant difference when compared with the Normal BMD group (P < 0.05) and the Osteopenia Group (P < 0.001). Low preoperative BMD in hip and spine was predictive of bone loss in Gruen zone 1 at 12 months after THA in patients with normal BMD (R2 = 0.40, P < 0.05). Conclusions Patients with osteopenia are prone to higher bone loss in the proximal femur after cementless total hip arthroplasty (THA). ZOL, not solely calcium and vitamin D, could prevent the accelerated periprosthetic bone loss after THA in patients with osteopenia and osteoporosis.
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Affiliation(s)
- Guang-Tao Fu
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China.,Division of Orthopaedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| | - Li-Jun Lin
- Department of Orthopaedics, Zhujiang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Pu-Yi Sheng
- Department of Orthopaedics, the First affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Chang-Chuan Li
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jin-Xin Zhang
- Public Health College, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Jun Shen
- Department of Radiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Sheng Liu
- Department of Nuclear Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yun-Lian Xue
- Division of Statistics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| | - Si-Peng Lin
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Kun Wang
- Department of Orthopaedics, The Third affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Qiu-Jian Zheng
- Division of Orthopaedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| | - Yue Ding
- Department of Orthopaedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
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Fu G, Ma Y, Liao J, Xue Y, Li M, Li Q, Deng Z, Zheng Q. High periprosthetic bone mineral density measured in immediate postoperative period may not guarantee less periprosthetic bone loss in the proximal femur after cementless total hip arthroplasty - A retrospective study. ARTHROPLASTY 2020; 2:2. [PMID: 35236466 PMCID: PMC8796644 DOI: 10.1186/s42836-020-0023-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 01/12/2020] [Indexed: 11/12/2022] Open
Abstract
Background Total hip arthroplasty is the most common orthopaedic procedure for the end-stage hip diseases. Periprosthetic bone loss is closely related to the increased risk of implant loosening and periprosthetic fractures, but the predictive value of periprosthetic bone mineral density (BMD) measured immediately after surgery has not yet been investigated. Methods From April 2015 to October 2017, 64 patients with femoral neck fracture, hip osteoarthritis, femoral head necrosis, or developmental dysplasia of the hip underwent unilateral total hip arthroplasty. Demographic data, bone mineral density of the hip and spine, periprosthetic BMD of 7 Gruen zones, and radiographic parameters measured preoperatively, 1 week, 3 months, and 12 months after surgery were collected. A p value < 0.05 was considered to be statistically significant. Results Significant decreases of the periprosthetic BMD were found in Gruen zone 1 (− 8.0%; p < 0.05), Gruen zone 2 (− 6.3%; p < 0.05), Gruen zone 7 (− 8.6%; p < 0.05), and total Gruen zone (− 4.7%; p < 0.05) in the first postoperative year, compared with the values measured 1 week after surgery. The relationship between the preoperative BMD of the hip/spine and the BMD of Gruen zone 1 and Gruen zone 7 measured 1 week after surgery did not reach statistical significance. The multiple linear regression analysis illustrated that the bone loss in Gruen zone 7 at the end of the follow-up period was negatively affected (β = − 0.703) by the BMD of Gruen zone 7 measured 1 week after surgery, with a R2 of 0.486 (p < 0.05). Similar results were also found in Gruen zone 1 (β = − 0.448, R2 = 0.186; p < 0.05). Conclusion There were marked decreases in periprosthetic BMD of the proximal femur in the first postoperative year. The predictive values of preoperative BMD of hip and spine on periprosthetic bone loss after THA were limited. Higher periprosthetic BMD measured in immediate postoperative period may not guarantee less periprosthetic bone loss in the proximal femur after cementless THA.
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Affiliation(s)
- Guangtao Fu
- Division of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106, Zhongshaner Road, Yuexiu District, Guangzhou, Guangdong Province, People's Republic of China
| | - Yuanchen Ma
- Division of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106, Zhongshaner Road, Yuexiu District, Guangzhou, Guangdong Province, People's Republic of China
| | - Junxing Liao
- Division of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106, Zhongshaner Road, Yuexiu District, Guangzhou, Guangdong Province, People's Republic of China
| | - Yunlian Xue
- Division of Statistics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, People's Republic of China
| | - Mengyuan Li
- Division of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106, Zhongshaner Road, Yuexiu District, Guangzhou, Guangdong Province, People's Republic of China
| | - Qingtian Li
- Division of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106, Zhongshaner Road, Yuexiu District, Guangzhou, Guangdong Province, People's Republic of China
| | - Zhantao Deng
- Division of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106, Zhongshaner Road, Yuexiu District, Guangzhou, Guangdong Province, People's Republic of China
| | - Qiujian Zheng
- Division of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106, Zhongshaner Road, Yuexiu District, Guangzhou, Guangdong Province, People's Republic of China.
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Wang H, Gu J, Liu X, Liu N, Luan F, Yin H, Liu R, Li H, Wang W. Variation in greater trochanteric lateroversion: a risk factor for femoral stem varus in total hip arthroplasty. Hip Int 2020; 30:33-39. [PMID: 30761922 DOI: 10.1177/1120700018825248] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Correct implant positioning is required to achieve adequate biomechanics. The greater trochanter is more medially or laterally positioned in some patients, known as trochanteric lateroversion. However, studies have not identified correlations between postoperative coronal alignment and variation in greater trochanteric lateroversion. The purpose of this study was to identify the effects of variation in greater trochanteric lateroversion on postoperative stem coronal alignment and to investigate other factors related to stem coronal alignment. METHODS A total of 213 hips in 149 patients who underwent total hip arthroplasty were included in this prospective study. The greater trochanters were categorised into 5 groups according to the degree of variation in greater trochanteric lateroversion, and the stem coronal alignment angle and stem fit were measured on anteroposterior radiographs. RESULTS Postoperative stem varus was positively correlated with greater trochanteric lateroversion (r = 0.26065, p = 0.0001) and negatively correlated with the stem fit (r = -0.16568, p = 0.0155). DISCUSSION Excessive variation in greater trochanteric lateroversion was a risk factor for femoral stem varus, and the stem varus position was always accompanied by inadequate canal filling. When the tip of the trochanteric overhang exceeded the centreline of the femoral canal, the influence of lateroversion of the greater trochanter on the femoral stem remarkably increased. Appropriate measures should be implemented to avoid a stem varus position and inappropriate stem fit.
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Affiliation(s)
- Haojun Wang
- Department of Orthopaedic Surgery, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjaing Province, China
| | - Jiaao Gu
- Department of Orthopaedic Surgery, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjaing Province, China
| | - Xin Liu
- Department of Orthopaedic Surgery, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjaing Province, China
| | - Ning Liu
- Department of Orthopaedic Surgery, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjaing Province, China
| | - Feiyu Luan
- Department of Orthopaedic Surgery, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjaing Province, China
| | - Haorong Yin
- Department of Orthopaedic Surgery, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjaing Province, China
| | - Ruixuan Liu
- Department of Orthopaedic Surgery, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjaing Province, China
| | - Hang Li
- Department of Orthopaedic Surgery, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjaing Province, China
| | - Wenbo Wang
- Department of Orthopaedic Surgery, The 1st Affiliated Hospital of Harbin Medical University, Harbin, Heilongjaing Province, China
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Nakamura S, Minoda Y, Ohta Y, Sugama R, Yamamura K, Ueyama H, Nakamura H. Preoperative Morphology of the Proximal Femoral Canal Did Not Affect the Postoperative Bone Mineral Density Change Around the Zweymüller-Type Stem. Orthopedics 2019; 42:e449-e453. [PMID: 31185122 DOI: 10.3928/01477447-20190604-04] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 10/16/2018] [Indexed: 02/03/2023]
Abstract
The bone mineral density (BMD) around a femoral component changes after total hip arthroplasty (THA). The aim of this study was to investigate the influence of the morphology of the preoperative proximal femoral canal on the postoperative BMD change of the femur around a Zweymüller-type stem. The authors performed a retrospective review of their institutional arthroplasty database. Patients were classified into following 3 groups according to canal flare index (CFI): CFI<3.0, stovepipe group; 3.0<CFI<4.7, normal group; and CFI>4.7, champagne-flute group. This study included 120 hips of 112 patients (26 hips with stovepipe femurs, 72 hips with normal femurs, and 22 hips with champagne-flute femurs) in patients who had undergone THA using the Zweymüller-type stem. The BMD of the proximal femur (Gruen's zones 1-7) was measured at 3 weeks and 6, 12, and 24 months postoperatively. At each follow-up period, the differences in the relative change in the BMD were not statistically significant in any regions of interest among the 3 groups. This study showed the lack of significant differences in the relative change in the BMD among the different morphologies of the proximal femoral canal. The preoperative morphology of the femoral canal did not affect the postoperative BMD change around the Zweymüller-type stem at 2 years postoperatively. [Orthopedics. 2019; 42(5):e449-e453.].
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Short to Midterm Follow-Up of Periprosthetic Bone Mineral Density after Total Hip Arthroplasty with the Ribbed Anatomic Stem. BIOMED RESEARCH INTERNATIONAL 2019; 2019:3085258. [PMID: 31346514 PMCID: PMC6620856 DOI: 10.1155/2019/3085258] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 05/05/2019] [Accepted: 06/03/2019] [Indexed: 01/24/2023]
Abstract
Background Femoral bone remodeling around hip prosthesis after total hip arthroplasty (THA) is definite but unpredictable in time and place. This study aimed to investigate the implant-specific remodeling and periprosthetic bone mineral density (BMD) changes after implantation of the Ribbed anatomic cementless femoral stem. Methods After power analysis, 41 patients who had undergone primary unilateral THA with the Ribbed anatomic cementless stem were included. BMD of the seven Gruen zones was measured by dual-energy X-ray absorptiometry, and the contact, fitness, and fixation of the femoral stem and proximal femur were analyzed by X-ray. Additional clinical outcome parameters were also recorded. Results Compared with the contralateral unoperated side, significant reductions of BMD were detected in the distal zone (Gruen zone 4: 1.665±0.198 versus 1.568±0.242 g/cm2, P=0.001) and middle distal zone (Gruen zone 5: 1.660±0.209 versus 1.608±0.215 g/cm2, P=0.026) on the prosthetic side, but no significant differences in BMD were detected in other zones (Gruen zones 1, 2, 3, 6, and 7). Subgroups analyses indicated no significant correlation between periprosthetic BMD changes and clinical factors including primary disease and body mass index. Visible areas of bone ingrowth indicated solid fixation of the femoral stem and there was no case of loosening. Clinical and functional outcome scores were excellent with mean HHS of 93.13 points and mean WOMAC score of 5.20 points, and three patients described intermittent mild thigh pain at the final follow-up. Conclusions For the Ribbed femoral stem, the periprosthetic BMD was well maintained in the proximal femur, while periprosthetic BMD was significantly reduced in the distal and middle distal zones of the femur. Further clinical investigations are required to examine the efficacy of the Ribbed stem, particularly with regard to long-term survival. This trial is registered with ChiCTR1800017750.
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Gielis WP, van Oldenrijk J, Ten Cate N, Scholtes VAB, Geerdink CH, Poolman RW. Increased Persistent Mid-Thigh Pain After Short-Stem Compared With Wedge-Shaped Straight-Stem Uncemented Total Hip Arthroplasty at Medium-Term Follow-Up: A Randomized Double-Blinded Cross-Sectional Study. J Arthroplasty 2019; 34:912-919. [PMID: 30773357 DOI: 10.1016/j.arth.2019.01.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 12/06/2018] [Accepted: 01/06/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Femoral prosthesis design may impact the frequency of mid-thigh pain. We compared current, incidental, and persistent mid-thigh pain between the short-stem, Collum Femoris femur prosthesis, and the wedge shaped straight-stem, Zweymüller femur prosthesis and studied the associations between demographics, radiographic measurements, and mid-thigh pain. METHODS We contacted patients from a randomized controlled trial who underwent uncemented total hip arthroplasty (THA) for hip osteoarthritis at a mean follow-up of 44 months (range 24-64 months). Patients were specifically assessed for current (during assessment), incidental (any time postoperatively for >1 week) mid-thigh pain, and persistent (any time postoperatively for >2 years) mid-thigh pain. Furthermore, we used regression analysis to study associations between demographics, radiographic measurements, and mid-thigh pain. RESULTS One hundred forty of 150 patients (93%) responded to our assessment. Mean age at the time of operation was 62 years (±7.0). Current mid-thigh pain occurred in 16 patients (23%) in the Collum Femoris Preserving (CFP) group compared with 10 patients (14%) in the Zweymüller group (P = .192). Incidental mid-thigh pain occurred in 24 patients (34%) in the CFP group compared with 15 patients (21%) in the Zweymüller group (P = .090). Persistent mid-thigh pain was found in 13 patients (19%) in the CFP group compared with five patients (7%) in the Zweymüller group (P = .043). Varus malalignment (odds ratio 1.819 [95% confidence interval 1.034-3.200]) and leg lengthening (odds ratio 1.107 per cm lengthening [95% confidence interval 1.026-1.195]) showed significant associations with mid-thigh pain. CONCLUSIONS We found more persistent mid-thigh pain after short-stem uncemented THA compared to wedge-shaped straight-stem uncemented THA during medium-term follow-up. Varus malalignment and leg lengthening were associated with mid-thigh pain.
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Affiliation(s)
- Willem Paul Gielis
- Department of Orthopedic Surgery, Joint Research, Amsterdam, The Netherlands; Department of Orthopedic Surgery, UMC Utrecht, Utrecht, The Netherlands
| | - Jakob van Oldenrijk
- Department of Orthopedic Surgery, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Nick Ten Cate
- Department of Orthopedic Surgery, Joint Research, Amsterdam, The Netherlands
| | | | - Carel H Geerdink
- Department of Orthopedic Surgery, Ikazia Hospital, Rotterdam, The Netherlands
| | - Rudolf W Poolman
- Department of Orthopedic Surgery, Joint Research, Amsterdam, The Netherlands
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Stem length in primary cementless total hip arthroplasty: Does it make a difference in bone remodeling? EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2019; 29:1235-1242. [PMID: 30989339 DOI: 10.1007/s00590-019-02437-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 04/11/2019] [Indexed: 10/27/2022]
Abstract
PURPOSE Stem design is usually accused for proximal femoral remodeling following total hip arthroplasty (THA). The aim of this prospective study was to compare the in vivo changes in bone mineral density (BMD) of the proximal femur after implantation of cementless THA with two length alternative stems. METHODS Between May 2011 and March 2014, 50 patients, who met our selection criteria and received cementless THA, randomized into two groups. Group A received cementless standard femoral stems, while group B received short stems. Harris Hip Score (HHS) and visual analog scale (VAS) were used for clinical assessment. Stem and cup positions and stability were radiologically evaluated. Dual-energy X-ray absorptiometry was used to follow and compare changes in BMD in different zones of proximal femur between both groups. RESULTS After a mean follow-up of 21.4 ± 3.53 months, there was a significant (p < 0.05) improvement in mean HHS and VAS with no significant differences (p > 0.05) between groups. There was no significant difference (p > 0.05) between groups regarding radiological results and rates of complications. The mean overall BMD was decreased by 11.26% for group A and 8.68% for group B at the final follow-up (p > 0.05). The greatest loss was found in greater trochanter region for group A and so for group B, but to a lesser extent (p < 0.05). CONCLUSIONS Cementless short stem was not able to hold back proximal femoral bone loss, but only can modify or decrease its incidence within limits.
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Iwase T, Morita D, Takemoto G, Fujita H, Katayama N, Otsuka H. Peri-prosthetic bone remodeling and change in bone mineral density in the femur after cemented polished tapered stem implantation. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2019; 29:1061-1067. [PMID: 30848380 DOI: 10.1007/s00590-019-02414-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 03/04/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVE We examined longitudinal changes in bone mineral density (BMD) around the femur for 5 years after total hip arthroplasty (THA) using cemented collarless polished double-tapered stem implantation and investigated the influence of BMD changes on radiological remodeling of the femur. MATERIALS AND METHODS Sixty hips from 56 patients who underwent cemented THA with a collarless polished double-tapered stem were included. BMD was measured 2 weeks postoperatively (baseline), 3 months, 6 months, 1 year and annually thereafter until 5 years after surgery using dual-energy X-ray absorptiometry on the lumbar spine and proximal femur of the operated side according to the Gruen's zone classification. We analyzed predictable factors for BMD preservation in the proximal femur and compared radiological remodeling of the femur and changes in BMD. RESULTS BMD at 5 years in zone 7 decreased less than 10%, whereas BMD in zone 1 increased to over the baseline (+ 1.9%). Multiple linear regression analyses revealed that body weight was a predictor for positive BMD change in the proximal femur. The frequency of radiolucency of the femur was significantly lower in patients who exhibited an increase in BMD at 5 years compared with BMD at 2 weeks in zone 7. CONCLUSION BMD preservation of the proximal femur after cemented collarless polished double-tapered stem implantation was more effective in heavier patients. Furthermore, the frequency of radiolucency around the stem was significantly lower in patients who exceeded 100% of the baseline BMD in zone 7 at 5 years.
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Affiliation(s)
- Toshiki Iwase
- Department of Orthopedic Surgery, Hip & Knee Reconstruction and Arthroplasty Center, Hamamatsu Medical Center, 328 Tomitsuka cyo, Naka ku, Hamamatsu, 432-8580, Japan.
| | - Daigo Morita
- Department of Orthopedic Surgery, Hip & Knee Reconstruction and Arthroplasty Center, Hamamatsu Medical Center, 328 Tomitsuka cyo, Naka ku, Hamamatsu, 432-8580, Japan
| | - Genta Takemoto
- Department of Orthopedic Surgery, Hip & Knee Reconstruction and Arthroplasty Center, Hamamatsu Medical Center, 328 Tomitsuka cyo, Naka ku, Hamamatsu, 432-8580, Japan
| | - Hiroshi Fujita
- Department of Orthopedic Surgery, Institute for Joint Replacement, Kyoto Katsura Hospital, Kyoto, Japan
| | - Naoyuki Katayama
- Department of Orthopedic Surgery, Hokkaido Orthopedic Memorial Hospital, Sapporo, Japan
| | - Hiromi Otsuka
- Joint Reconstruction Center, Gifu Municipal Hospital, Gifu, Japan
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Heyland M, Checa S, Kendoff D, Duda GN. Anatomic grooved stem mitigates strain shielding compared to established total hip arthroplasty stem designs in finite-element models. Sci Rep 2019; 9:482. [PMID: 30679467 PMCID: PMC6345751 DOI: 10.1038/s41598-018-36503-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 11/19/2018] [Indexed: 01/30/2023] Open
Abstract
Aseptic loosening remains a major problem for uncemented femoral components in primary total hip arthroplasty (THA). Ideally, bone adaptation after THA manifests minimally and local bone density reduction is widely avoided. Different design features may help to approximate initial, post-THA bone strain to levels pre-THA. Strain-shielding effects of different SP-CL stem design features are systematically analyzed and compared to CLS Spotorno and CORAIL using finite element models and physiological musculoskeletal loading conditions. All designs show substantial proximal strain-shielding: 50% reduced medial surface strain, 40–50% reduction at lateral surface, >120 µm/m root mean square error (RMSE) compared to intact bone in Gruen zone 1 and >60 µm/m RMSE in Gruen zones 2, 6, and 7. Geometrical changes (ribs, grooves, cross sections, stem length, anatomic curvature) have a considerable effect on strain-shielding; up to 20%. Combinations of reduced stem stiffness with larger proximal contact area (anatomically curved, grooves) lead to less strain-shielding compared to clinically established implant designs. We found that only the combination of a structurally flexible stem with anatomical curvature and grooves improves strain-shielding compared to other designs. The clinical implications in vivo of this initial strain-shielding difference are currently under evaluation in an ongoing clinical analysis.
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Affiliation(s)
- Mark Heyland
- Julius Wolff Institute for Biomechanics and Musculoskeletal Regeneration, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt - Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
| | - Sara Checa
- Julius Wolff Institute for Biomechanics and Musculoskeletal Regeneration, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt - Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt - Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | | | - Georg N Duda
- Julius Wolff Institute for Biomechanics and Musculoskeletal Regeneration, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt - Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Berlin-Brandenburg Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt - Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt - Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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Liang HD, Yang WY, Pan JK, Huang HT, Luo MH, Zeng LF, Liu J. Are short-stem prostheses superior to conventional stem prostheses in primary total hip arthroplasty? A systematic review and meta-analysis of randomised controlled trials. BMJ Open 2018; 8:e021649. [PMID: 30244208 PMCID: PMC6157567 DOI: 10.1136/bmjopen-2018-021649] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
OBJECTIVE Cementless total hip arthroplasty (THA) is associated with reliable clinical results and high patient satisfaction. Short-stem prostheses (SS) were designed to achieve superior preservation of proximal bone stock and stability compared with those of conventional-stem prostheses (CS). This meta-analysis was conducted to determine the proximal bone remodelling, revision rate, Harris Hip Score, radiolucent line and maximum total point motion values of both SS and CS for primary THA. METHOD Relevant randomised controlled trials (RCTs) involving SS and CS in primary THA were identified from electronic databases, such as EMBASE, PubMed and the Cochrane Library. RESULT Ultimately, 12 RCTs involving 1130 patients (1387 hips) were included. The results showed that compared with CS, SS resulted in less bone mineral density (BMD) changes in Gruen zone 7 at 1 year and 2 years postoperatively (mean difference (MD)=5.11; 95% CI, 1.61, 8.61; P=0.30; and MD=4.90; 95% CI, 1.01, 8.79; P=0.17, respectively). No difference in BMD changes was found for Gruen zone 1 (MD=2.66; 95% CI, -3.31, 8.64; P<0.00001), and no differences were observed for the revision rate (relative risk (RR)=1.52; 95% CI, 0.71, 3.26; P=0.94), Harris Hip Score (MD=-0.38; 95% CI, -1.02, 0.26; P=0.89) or stem migration (MD=0.02; 95% CI, -0.07, 0.11; P=0.04). CONCLUSION Our results suggest that compared with CS, SS may provide superior bone remodelling and similar survival rates and clinical outcomes. However, the short-term follow-up of the included studies was inadequate to determine the long-term performance of SS.
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Affiliation(s)
- Hao-Dong Liang
- Guangzhou Hospital of Traditional Chinese Medicine, Guangzhou, People’s Republic of China
| | - Wei-Yi Yang
- Department of Orthopedic Surgery, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - Jian-Ke Pan
- Department of Orthopedic Surgery, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - He-Tao Huang
- Second School of Clinical Medicine, Guangzhou Universityof Chinese Medicine, Guangzhou, People’s Republic ofChina
| | - Ming-Hui Luo
- Department of Orthopedic Surgery, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - Ling-Feng Zeng
- Department of Orthopedic Surgery, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
| | - Jun Liu
- Department of Orthopedic Surgery, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, People’s Republic of China
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Ugland TO, Haugeberg G, Svenningsen S, Ugland SH, Berg ØH, Hugo Pripp A, Nordsletten L. Less periprosthetic bone loss following the anterolateral approach to the hip compared with the direct lateral approach. Acta Orthop 2018; 89:23-28. [PMID: 29037093 PMCID: PMC5810828 DOI: 10.1080/17453674.2017.1387730] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background and purpose - The loss of bone mineral in the proximal femur following hip arthroplasty may increase the fracture risk around uncemented stems. We hypothesized that the surgical approach to the hip might influence bone mineral changes around the femoral stem in patients with a femoral neck fracture (FNF). Patients and methods - This was a pre-specified subgroup analysis (n = 51) of an ongoing randomized trial (n = 120) in patients with FNF. Participants were allocated to an uncemented hemiarthroplasty inserted through a direct lateral (Hardinge) approach or an anterolateral (modified Watson-Jones) approach. The 51 patients (mean age 83 (70-90) years, 33 women) were measured by dual-energy X-ray absorptiometry (DXA) to assess changes in periprosthetic bone mineral density (BMD). Results - The mean change in total BMD differed between groups at 12 months in favor of the anterolateral group (4.8%, 95% CI 0.0-9.6; p = 0.05). DXA at 3 months displayed BMD loss in the proximal Gruen zones in the lateral group compared with the anterolateral group. Zone 1 (-5.0% vs. 2.7%), zone 2 (-4.3% vs. 4.1%), zone 6 (-6.5% vs. 0.0%) and zone 7 (-11% vs. -2.4%, all p < 0.05). Interpretation - DXA measurements in this study indicate that surgical approach to the hip influences periprosthetic BMD. Clinical implications remain uncertain. Our conclusions should be interpreted with caution as we did not perform adjustments for multiple tests, possibly leading to inflation of false-positive findings.
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Affiliation(s)
- Terje O Ugland
- Department of Orthopaedics, Sorlandet Hospital Kristiansand, Norway,University of Oslo, Oslo, Norway,Correspondence:
| | - Glenn Haugeberg
- Department of Orthopaedics, Sorlandet Hospital Kristiansand, Norway,Martina Hansens Hospital, Gjettum, Norway,Department of Neurosciences, Rheumatology Division, INM, Norwegian University of Science and Technology, Trondheim, Norway
| | | | - Stein H Ugland
- Department of Orthopaedics, Sorlandet Hospital Kristiansand, Norway
| | - Øystein H Berg
- Department of Orthopaedics, Sorlandet Hospital Kristiansand, Norway
| | | | - Lars Nordsletten
- Department of Orthopaedics, Oslo University Hospital, Ullevål,University of Oslo, Oslo, Norway
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High incidence of early subtrochanteric lateral cortical atrophy after hip arthroplasty using bone-conserving short stem. INTERNATIONAL ORTHOPAEDICS 2017; 42:303-309. [PMID: 28681227 DOI: 10.1007/s00264-017-3544-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 06/14/2017] [Indexed: 01/23/2023]
Abstract
PURPOSE Load transfer to the bone is believed to be more physiological around the short stem in total hip arthroplasty (THA). However, we found unusual bony remodeling around the shortened tapered stem. This study was performed to investigate the extent and frequency of this phenomenon and to find the possible risk factors of it. METHODS Among 121 consecutive THA using the same short stem, 80 THAs were enrolled. Radiographic measurements were made using anteroposterior (AP) radiographs taken immediately and at two years after surgery. The thickness of the lateral cortex at the level of the distal end of the coated surface and at 10, 20, 30, and 40 mm proximal to it were measured. RESULTS Significant atrophy was noted in all regions (P < 0.001 each). In 46 cases, this presented as an intra-cortical osteolytic line (IOL). Sixty-one cases showed either an IOL or atrophy >10%. The risk of a mean reduction >20% was related to an increased operating time (odds ratio [OR] = 0.981; 0.966 < 95% confidence interval [CI] < 0.996) and lower body mass index (BMI) (OR = 1.216; 1.043 < 95% CI < 1.417). Periprosthetic fracture through the lateral cortex occurred in one case. CONCLUSION Even with THA using a shortened stem, high incidence of proximal stress shielding was noted in the form of lateral cortical atrophy, especially for the patient with low BMI.
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Schilcher J, Ivarsson I, Perlbach R, Palm L. No Difference in Periprosthetic Bone Loss and Fixation Between a Standard-Length Stem and a Shorter Version in Cementless Total Hip Arthroplasty. A Randomized Controlled Trial. J Arthroplasty 2017; 32:1220-1226. [PMID: 27993496 DOI: 10.1016/j.arth.2016.11.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 10/27/2016] [Accepted: 11/09/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Cementless femoral stems in total hip arthroplasty provide dependable clinical and radiographic results in the treatment of osteoarthritis. Stem length might affect the preservation of proximal bone stock and stability. We hypothesized that a shorter stem decreases proximal bone loss without affecting implant stability. METHODS We randomly assigned 60 patients aged between 50 and 70 years to either a standard cementless femoral stem or a 35-mm shorter version. Patients were followed with dual-energy X-ray absorptiometry, radiostereometric analysis, Harris hip score, Western Ontario and McMaster Universities Osteoarthritis Index score, and clinical follow-up at 3, 6, 12, and 24 months. The trial is registered on ClinicalTrials.gov/. RESULTS After 24 months, short stems had on average 3.8% (95% confidence interval, 1.2%-8.9%) more bone loss in zone 1 compared to standard stems (P = .14). In zone 7, the bone loss was on average 6.5% (95% confidence interval, 6.6%-19.7%) higher compared to standard stems (P = .33). After 24 months, standard stems had migrated 0.93 mm (range, 0.25-4.66 mm) and short stems 0.93 mm (range, 0.17-2.96 mm; Student t-test after log transformation, P = .3). Patient-reported outcome measures were similar in both groups. One patient in the standard stem group was diagnosed with infection, one with a posterior dislocation, and one with a deep venous thrombosis. No stems were revised. CONCLUSION There were no statistically significant differences in periprosthetic bone loss or fixation between the stems at 24 months.
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Affiliation(s)
- Jörg Schilcher
- Department of Experimental and Clinical Medicine and the Department of Orthopedics, Faculty of Health Science, Linköping University, Linköping, Sweden
| | - Ingemar Ivarsson
- Department of Experimental and Clinical Medicine and the Department of Orthopedics, Faculty of Health Science, Linköping University, Linköping, Sweden
| | - Rico Perlbach
- Department of Experimental and Clinical Medicine and the Department of Orthopedics, Faculty of Health Science, Linköping University, Linköping, Sweden
| | - Lars Palm
- Department of Experimental and Clinical Medicine and the Department of Orthopedics, Faculty of Health Science, Linköping University, Linköping, Sweden
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