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Markeviciute V, Puthia M, Arvidsson L, Liu Y, Törnquist E, Tengattini A, Huang J, Bai Y, Vater C, Petrolis R, Zwingenberger S, Krisciukaitis A, Smailys A, Lukosevicius S, Stravinskas M, Isaksson H, Tarasevicius S, Lidgren L, Tägil M, Raina DB. Systemically administered zoledronic acid activates locally implanted synthetic hydroxyapatite particles enhancing peri-implant bone formation: A regenerative medicine approach to improve fracture fixation. Acta Biomater 2024; 179:354-370. [PMID: 38490481 DOI: 10.1016/j.actbio.2024.03.005] [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: 11/07/2023] [Revised: 02/11/2024] [Accepted: 03/07/2024] [Indexed: 03/17/2024]
Abstract
Fracture fixation in an ageing population is challenging and fixation failure increases mortality and societal costs. We report a novel fracture fixation treatment by applying a hydroxyapatite (HA) based biomaterial at the bone-implant interface and biologically activating the biomaterial by systemic administration of a bisphosphonate (zoledronic acid, ZA). We first used an animal model of implant integration and applied a calcium sulphate (CaS)/HA biomaterial around a metallic screw in the tibia of osteoporotic rats. Using systemic ZA administration at 2-weeks post-surgery, we demonstrated that the implant surrounded by HA particles showed significantly higher peri‑implant bone formation compared to the unaugmented implants at 6-weeks. We then evaluated the optimal timing (day 1, 3, 7 and 14) of ZA administration to achieve a robust effect on peri‑implant bone formation. Using fluorescent ZA, we demonstrated that the uptake of ZA in the CaS/HA material was the highest at 3- and 7-days post-implantation and the uptake kinetics had a profound effect on the eventual peri‑implant bone formation. We furthered our concept in a feasibility study on trochanteric fracture patients randomized to either CaS/HA augmentation or no augmentation followed by systemic ZA treatment. Radiographically, the CaS/HA group showed signs of increased peri‑implant bone formation compared with the controls. Finally, apart from HA, we demonstrated that the concept of biologically activating a ceramic material by ZA could also be applied to β-tricalcium phosphate. This novel approach for fracture treatment that enhances immediate and long-term fracture fixation in osteoporotic bone could potentially reduce reoperations, morbidity and mortality. STATEMENT OF SIGNIFICANCE: • Fracture fixation in an ageing population is challenging. Biomaterial-based augmentation of fracture fixation devices has been attempted but lack of satisfactory biological response limits their widespread use. • We report the biological activation of locally implanted microparticulate hydroxyapatite (HA) particles placed around an implant by systemic administration of the bisphosphonate zoledronic acid (ZA). The biological activation of HA by ZA enhances peri‑implant bone formation. •Timing of ZA administration after HA implantation is critical for optimal ZA uptake and consequently determines the extent of peri‑implant bone formation. • We translate the developed concept from small animal models of implant integration to a proof-of-concept clinical study on osteoporotic trochanteric fracture patients. • ZA based biological activation can also be applied to other calcium phosphate biomaterials.
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Affiliation(s)
- Vetra Markeviciute
- Department of Orthopedics and Traumatology, Lithuanian University of Health Sciences, Kaunas, Lithuania; The Faculty of Medicine, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden
| | - Manoj Puthia
- The Faculty of Medicine, Division of Dermatology and Venerology, Lund University, 221 84 Lund, Sweden
| | - Linnea Arvidsson
- The Faculty of Medicine, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden
| | - Yang Liu
- The Faculty of Medicine, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden; Department of Orthopedic Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine (SAHZU), Hangzhou, Zhejiang, China
| | - Elin Törnquist
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | | | - Jintian Huang
- The Faculty of Medicine, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden
| | - Yiguang Bai
- The Faculty of Medicine, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden; Cell, Tissue & Organ engineering laboratory, Department of Clinical Sciences Lund, Stem Cell Centre, Lund University, Lund, Sweden; Department of Orthopaedics, Nanchong Central Hospital, The Second Clinical Institute of North Sichuan Medical College Nanchong, Sichuan, China
| | - Corina Vater
- University Hospital Carl Gustav Carus at Technische Universität Dresden, University Center of Orthopedics, Trauma and Plastic Surgery, 01307 Dresden, Germany
| | - Robertas Petrolis
- Department of Physics, Mathematics and Biophysics, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Stefan Zwingenberger
- University Hospital Carl Gustav Carus at Technische Universität Dresden, University Center of Orthopedics, Trauma and Plastic Surgery, 01307 Dresden, Germany
| | - Algimantas Krisciukaitis
- Department of Physics, Mathematics and Biophysics, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Alfredas Smailys
- Department of Orthopedics and Traumatology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Saulius Lukosevicius
- Department of Radiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Mindaugas Stravinskas
- Department of Orthopedics and Traumatology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Hanna Isaksson
- Department of Biomedical Engineering, Lund University, Lund, Sweden
| | - Sarunas Tarasevicius
- Department of Orthopedics and Traumatology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Lars Lidgren
- The Faculty of Medicine, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden
| | - Magnus Tägil
- The Faculty of Medicine, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden
| | - Deepak Bushan Raina
- The Faculty of Medicine, Department of Clinical Sciences Lund, Orthopedics, Lund University, Lund, Sweden.
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Vaidya PV, Dutta A, Rooj S, Talukdar R, Bhombe K, Seesala VS, Syed ZQ, Bandyopadhyay TK, Dhara S. Design modification of surgical drill bit for final osteotomy site preparation towards improved bone-implant contact. Heliyon 2023; 9:e16451. [PMID: 37292286 PMCID: PMC10245014 DOI: 10.1016/j.heliyon.2023.e16451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/15/2023] [Accepted: 05/17/2023] [Indexed: 06/10/2023] Open
Abstract
Implant stability significantly impacts accelerated osseointegration, leading to faster patient recovery. Both primary and secondary stability necessitates superior bone-implant contact influenced by the surgical tool required to prepare the final osteotomy site. Besides, excessive shearing and frictional forces generate heat causing local tissue necrosis. Hence, surgical procedure necessitates proper irrigation with water to minimize heat generation. Notably, the water irrigation system removes bone chips and osseous coagulums, which may help accelerate osseointegration and improve bone-implant contact. The inferior bone-implant contact and thermal necrosis at the osteotomy site are primarily responsible for poor osseointegration and eventual failure. Therefore, optimizing tool geometry is key to minimizing shear force, heat generation, and necrosis during final osteotomy site preparation. The present study explores modified drilling tool geometry, especially cutting edge for osteotomy site preparation. The mathematical modeling is used to find out ideal cutting-edge geometry that facilitates drilling under relatively less operational force (0.55-5.24 N) and torque (98.8-154.5 N-mm) with a significant reduction (28.78%-30.87%) in heat generation. Twenty-three conceivable designs were obtained using the mathematical model; however, only three have shown promising results in static structural FEM platforms. These drill bits are designed for the final drilling operation and need to be carried out during the final osteotomy site preparation.
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Affiliation(s)
| | - Abir Dutta
- Advanced Technology Development Centre, IIT Kharagpur, West Bengal, India
| | - Suparna Rooj
- Advanced Technology Development Centre, IIT Kharagpur, West Bengal, India
| | - Rahul Talukdar
- Advanced Technology Development Centre, IIT Kharagpur, West Bengal, India
| | - Komal Bhombe
- Sharad Pawar Dental Collage and Hospital, Dutta Meghe Institute of Medical Science, Wardha, Maharashtra, India
| | | | - Zahiruddin Quazi Syed
- Jawaharlal Nehru Medical College, Dutta Meghe Institute of Medical Science, Wardha, Maharashtra, India
| | | | - Santanu Dhara
- School of Medical Science and Technology, IIT Kharagpur, West Bengal, India
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Tian X, Raina DB, Vater C, Kilian D, Ahlfeld T, Platzek I, Nimtschke U, Tägil M, Lidgren L, Thomas A, Platz U, Schaser KD, Disch AC, Zwingenberger S. Evaluation of an Injectable Biphasic Calcium Sulfate/Hydroxyapatite Cement for the Augmentation of Fenestrated Pedicle Screws in Osteoporotic Vertebrae: A Biomechanical Cadaver Study. J Funct Biomater 2022; 13:jfb13040269. [PMID: 36547529 PMCID: PMC9786089 DOI: 10.3390/jfb13040269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/17/2022] [Accepted: 11/23/2022] [Indexed: 12/05/2022] Open
Abstract
Cement augmentation of pedicle screws is one of the most promising approaches to enhance the anchoring of screws in the osteoporotic spine. To date, there is no ideal cement for pedicle screw augmentation. The purpose of this study was to investigate whether an injectable, bioactive, and degradable calcium sulfate/hydroxyapatite (CaS/HA) cement could increase the maximum pull-out force of pedicle screws in osteoporotic vertebrae. Herein, 17 osteoporotic thoracic and lumbar vertebrae were obtained from a single fresh-frozen human cadaver and instrumented with fenestrated pedicle screws. The right screw in each vertebra was augmented with CaS/HA cement and the un-augmented left side served as a paired control. The cement distribution, interdigitation ability, and cement leakage were evaluated using radiographs. Furthermore, pull-out testing was used to evaluate the immediate mechanical effect of CaS/HA augmentation on the pedicle screws. The CaS/HA cement presented good distribution and interdigitation ability without leakage into the spinal canal. Augmentation significantly enhanced the maximum pull-out force of the pedicle screw in which the augmented side was 39.0% higher than the pedicle-screw-alone side. Therefore, the novel biodegradable biphasic CaS/HA cement could be a promising material for pedicle screw augmentation in the osteoporotic spine.
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Affiliation(s)
- Xinggui Tian
- University Center of Orthopaedic, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
- Center for Translational Bone, Joint and Soft Tissue Research, Faculty of Medicine, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - Deepak B. Raina
- Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, 22184 Lund, Sweden
| | - Corina Vater
- University Center of Orthopaedic, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
- Center for Translational Bone, Joint and Soft Tissue Research, Faculty of Medicine, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - David Kilian
- Center for Translational Bone, Joint and Soft Tissue Research, Faculty of Medicine, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - Tilman Ahlfeld
- Center for Translational Bone, Joint and Soft Tissue Research, Faculty of Medicine, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - Ivan Platzek
- Department of Radiology, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - Ute Nimtschke
- Institute of Anatomy, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - Magnus Tägil
- Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, 22184 Lund, Sweden
| | - Lars Lidgren
- Department of Clinical Sciences Lund, Faculty of Medicine, Lund University, 22184 Lund, Sweden
| | - Alexander Thomas
- University Center of Orthopaedic, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - Uwe Platz
- University Center of Orthopaedic, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - Klaus-Dieter Schaser
- University Center of Orthopaedic, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - Alexander C. Disch
- University Center of Orthopaedic, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
| | - Stefan Zwingenberger
- University Center of Orthopaedic, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
- Center for Translational Bone, Joint and Soft Tissue Research, Faculty of Medicine, University Hospital Carl Gustav Carus at Technische Universität Dresden, 01307 Dresden, Germany
- Correspondence:
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Nie S, Li J, Li M, Hao M, Wang K, Xiong Y, Gan X, Zhang L, Tang P. Finite-Element Analysis of a Novel Cephalomedullary Nail for Restricted Sliding to Reduce Risk of Implant Failure in Unstable Intertrochanteric Fractures. Orthop Surg 2022; 14:3009-3018. [PMID: 36120825 PMCID: PMC9627085 DOI: 10.1111/os.13497] [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: 05/16/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 11/30/2022] Open
Abstract
Objective How to restrict sliding of cephalomedullary nail and rigid reconstruct medial support for unstable intertrochanteric fractures remains a challenge. This study aims to explore the feasibility of a novel cephalomedullary nail for restriction sliding and reconstruction of medial femoral support to prevent failure in unstable trochanteric fractures through finite element analysis. Methods The DICOM files of a unilateral femur spiral computed tomography (CT) scans from a elderly female were converted into STL files, and the most common clinical trochanteric fracture model with the absence of medial support, AO/OTA 31‐A2.3 was simulated by removing the posterior medial femur. The model of a novel medial sustain nail (MSN‐II) and a widely used nail (proximal femoral nail anti‐rotation PFNA‐II) were modeled according to the manufacturer‐provided engineering drawing. Different loads were applied to the femoral head to simulate the postoperative weight bearing gait. The sliding distance of helical blade in femoral neck, maximum stress of femur and nail, displacement of proximal fragment were analyzed to revealing the mechanical stability of unstable trochanteric fracture stabilized by different implant. Results The sliding distance of helical blade in the femoral neck, the maximum stress on the femur and nail, the displacement of proximal fragment in MSN‐II under 2100N axial load were 0.65 mm, 689 MPa, 1271 MPa, 16.84 mm respectively, while that were 1.43 mm, 720.8 MPa, 1444 MPa, 18.18 mm, respectively in PFNA‐II. The difference between the two groups was statistically significant (P < 0.05) and the stress was mainly distributed in medial distal side of nail but helical blade and the proximal aperture for the nail in MSN‐II. Compared to PFNA‐II, MSN‐II demonstrates biomechanical merit against femur medialization, cut‐out and coax varus. Conclusion The sliding distance of helical blade in femoral neck, the maximum stress on the femur and nail, and the displacement of proximal fragment of MSN‐II were less than those of PFNA‐II in the treatment of unstable intertrochanteric fractures. Therefore MSN‐II has better stability than PFNA‐II and it may have the potential to avoid femur medialization and cut out. It might be an option in unstable trochanteric fracture because of its superiority in restricted sliding and medial support reconstruction.
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Affiliation(s)
- Shaobo Nie
- Department of Orthopedics, PLA General Hospital, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Jiantao Li
- Department of Orthopedics, PLA General Hospital, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Ming Li
- Department of Orthopedics, PLA General Hospital, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Ming Hao
- Department of Orthopedics, PLA General Hospital, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Kun Wang
- Department of Orthopedics, PLA General Hospital, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Ying Xiong
- Department of orthopedics, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Xuewen Gan
- Department of orthopedics, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Licheng Zhang
- Department of Orthopedics, PLA General Hospital, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
| | - Peifu Tang
- Department of Orthopedics, PLA General Hospital, Beijing, China.,National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing, China
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