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Lewis TL, Walker R, Alkhalfan Y, Latif A, Abbasian A. Custom Patient-Specific 3D-Printed Titanium Truss Tibiotalocalcaneal Arthrodesis Implants for Failed Total Ankle Replacements: Classification, Technical Tips, and Treatment Algorithm. Foot Ankle Int 2024:10711007241255381. [PMID: 38872312 DOI: 10.1177/10711007241255381] [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: 06/15/2024]
Abstract
BACKGROUND The management of failed total ankle replacements, with significant loss of bone stock, is challenging with high rates of complications and associated morbidity. Recent technological advances have enabled the development of patient-customized 3D-printed titanium truss arthrodesis implants, which offer an alternative salvage option for failed total ankle replacements. METHODS A prospective observational study was performed of 6 cases of failed total ankle replacements that were managed using custom patient-specific 3D-printed titanium truss arthrodesis implants. Technical tips, classification, and a treatment algorithm were developed based on our initial experience. RESULTS Between November 2018 and March 2022, 6 patients underwent arthrodesis for failed total ankle replacements. Follow-up was available for all cases. The mean follow-up was 3.0 years (range 1-4.5). The mean MOXFQ Index improved from 73.1 to 32.3 (P < .05). The mean EQ-5D-5L Index improved from 0.366 to 0.743 (P < .05) and the EQ-VAS also improved from 53.0 to 63.3 (P = .36). The mean VAS-Pain score at final follow-up was 27.5. There were no cases of nonunion. None of the patients were smokers. The overall complication rate was 50%. Two patients returned to surgery: one for wound washout following TAR explantation and a second for removal of metalwork 2 years following surgery for a prosthetic joint infection secondary to hematogenous spread. No patients underwent revision fixation or amputation. CONCLUSION Custom patient-specific 3D-printed titanium truss arthrodesis implants are a viable treatment option for failed total ankle replacements.
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Affiliation(s)
- Thomas L Lewis
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Roland Walker
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Yousif Alkhalfan
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Ahmed Latif
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Ali Abbasian
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
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Yano K, Ikari K, Okazaki K. Ten-Year Follow-Up of a Customized Total Talar Prosthesis for Revision Total Ankle Arthroplasty: A Case Report. JBJS Case Connect 2023; 13:01709767-202309000-00056. [PMID: 37590560 DOI: 10.2106/jbjs.cc.23.00115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
CASE A 74-year-old woman with rheumatoid arthritis had undergone total ankle arthroplasty (TAA) for severe ankle joint destruction at our hospital 14 years earlier. Radiographs of the ankle revealed displacement of the tibial component and subsidence of the talar component. Revision TAA was performed using a customized alumina ceramic total talar prosthesis. CONCLUSION The 10-year outcome of revision TAA with a total talar prosthesis was satisfactory, with no postoperative complications, such as displacement of the tibial component, dislocation of alumina ceramic artificial talus, or progression of degenerative changes in the talonavicular and subtalar joints.
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Affiliation(s)
- Koichiro Yano
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
- Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan
| | - Katsunori Ikari
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
- Institute of Rheumatology, Tokyo Women's Medical University, Tokyo, Japan
| | - Ken Okazaki
- Department of Orthopedic Surgery, Tokyo Women's Medical University, Tokyo, Japan
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Usuelli FG, Paoli T, Indino C, Maccario C, Di Silvestri CA. Fast-Track for Total Ankle Replacement: A Novel Enhanced Recovery Protocol for Select Patients. Foot Ankle Int 2023; 44:148-158. [PMID: 36576024 DOI: 10.1177/10711007221140841] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Enhanced recovery after surgery programs, also called fast-track protocols, were developed and successfully applied in the last decade for hip and knee reconstruction. Specific fast-track protocols have not yet been applied to ankle prostheses. The aim of the study was to develop and validate an enhanced recovery protocol for total ankle replacement (TAR) evaluating the clinical and radiographic results. We hypothesize that on the basis of well-defined pre- and postoperative characteristics, the current knowledge on ankle replacement, and referring to hip and knee reconstruction, it is possible to identify a "patient type" to be safely eligible to a Fast-Track Protocol with at least comparable results and without increasing the complications risk. METHODS We identified 8 predictive variables that might affect the outcome of TAR. Those variables were the body mass index, the state of anxiety or depression, the functional preoperative status, ankle equinus, the coronal malalignment, the surgical time, the surgical accessory procedures, and the bone quality. These characteristics were evaluated for each patient with almost validated outcome tools attributing a specific score. Based on the score obtained, the patients were divided into 2 groups: the Standard Protocol group (Control Group) and the Fast-Track Protocol group (Study Group). The main difference between treatment of the 2 groups relates to the use of postoperative plaster casts: in the Fast-Track group the cast was removed the first day after surgery and walking was allowed in sports shoes assisted with crutches, whereas in the Standard Protocol group, the cast was removed after 3 weeks. Clinical and radiographic evaluation was performed for all patients preoperatively and postoperatively every 6 months. RESULTS A total of 163 patients received a score between 1 and 5 and were included in the control group (Standard Protocol); 47 patients received a score of 0 and were allocated to the study group (Fast-Track Protocol). Clinically, except for the preoperative American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot scale score, no statistically significant differences were recorded in the multiple comparisons between the 2 groups. No significant differences were found regarding complications. CONCLUSION In selected patients, it is possible to apply an enhanced recovery protocol of rehabilitation, focused on immediate weightbearing and mobilization without any plaster or boot. LEVEL OF EVIDENCE Level II, prospective comparative study.
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Ramhamadany E, Chadwick C, Davies MB. Treatment of Severe Avascular Necrosis of the Talus Using a Novel Keystone-Shaped 3D-Printed Titanium Truss Implant. FOOT & ANKLE ORTHOPAEDICS 2022; 6:24730114211043516. [PMID: 35097475 PMCID: PMC8554568 DOI: 10.1177/24730114211043516] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Avascular necrosis (AVN) of the talus most commonly occurs secondary to trauma. Significant bone loss and collapse in severe talar AVN remains an operative challenge. Tibiotalocalcaneal arthrodesis (TTC) using femoral head allograft is at risk of collapse and subsidence. The use of a void-filling titanium truss can mitigate against this. This study describes the use of a novel keystone shaped 3D-printed titanium truss for treatment of severe talar AVN. Methods Three patients with end-stage AVN of the talus were included. Each patient underwent a TTC arthrodesis with a custom-made, 3D-printed, keystone-shaped, truss implant in conjunction with a hindfoot intramedullary nail. Modified patient American Orthopaedic Foot & Ankle Society (AOFAS) scores were recorded at the preoperative, 6-month, 12-month, and annual postoperative timepoints. Results All patients progressed to satisfactory radiological union by one year. Mean follow up time was 32 months (24-48 months). Mean preoperative modified AOFAS score was 5. There was progressive improvement in AOFAS scores from 6 months postoperatively. Mean modified AOFAS score improved from 28 at 6 months to 37 at 2 years postoperatively. Conclusion Custom-made 3D-printed titanium trusses provide promising outcomes for treating severe AVN of the talus. The "keystone" design is advantageous as it allows for bone stock preservation and conforms to the shape of the native calcaneum. All patients showed progressive improvements in outcomes at sequential time intervals postoperatively. The implant provides a strong mechanical structure resisting collapse and subsidence during the arthrodesis process. Level of Evidence Level IV, retrospective case series.
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Affiliation(s)
- Eamon Ramhamadany
- Foot and Ankle Fellow, Northern General Hospital, Sheffield, United Kingdom
| | - Carolyn Chadwick
- Department of Orthopaedic Surgery, Northern General Hospital, Sheffield, United Kingdom
| | - Mark B Davies
- Department of Orthopaedic Surgery, Northern General Hospital, Sheffield, United Kingdom
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5
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Usuelli FG, de Cesar Netto C, Maccario C, Paoli T, D'Ambrosi R, Indino C. Reconstruction of a missing or insufficient distal fibula in the setting of a total ankle replacement: The Milanese technique. Foot Ankle Surg 2022; 28:186-192. [PMID: 33744103 DOI: 10.1016/j.fas.2021.03.007] [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: 10/04/2020] [Revised: 02/22/2021] [Accepted: 03/09/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND The presence of an intact distal fibula is reported as a prerequisite when considering total ankle replacement and its lack is usually considered a contraindication. The purpose of the study was to describe the results of a surgical technique to reconstruct the distal fibula (Milanese fibular reconstruction technique) in the setting of a total ankle replacement and insufficient fibula. METHODS Retrospective analysis of 15 patients (15 ankles) who underwent rotational fibular reconstruction technique with minimum follow-up of 24 months. Patients were evaluated preoperatively and at the last follow-up with AOFAS Ankle and Hindfoot score, VAS pain scale, SF-12 and range of motion. Standard weightbearing radiographs were used for radiographic assessment. RESULTS The average of all clinical scores significantly improved (P<.001). The average radiographic parameters showed a neutral alignment. No cases of reabsorption of the new lateral malleolus were observed even in cases with complications that accounted for 2 superficial wound infection and 2 deep infections. CONCLUSIONS The Milanese fibular reconstruction technique can successfully reestablish a lateral strut and in the setting of an ankle prosthesis in patients with an insufficient fibula.
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Affiliation(s)
| | - Cesar de Cesar Netto
- University of Iowa, Department of Orthopaedics and Rehabilitation, Iowa City, IA, USA
| | | | - Tommaso Paoli
- Orthopaedic Clinic, University of Florence, Careggi University Hospital, Florence, Italy
| | | | - Cristian Indino
- Humanitas San Pio X, Ankle and Foot Surgery Unit, Milan, Italy.
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6
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Parry E, Catanzariti AR. Use of Three-dimensional Titanium Trusses for Arthrodesis Procedures in Foot and Ankle Surgery: A Retrospective Case Series. J Foot Ankle Surg 2021; 60:824-833. [PMID: 33863606 DOI: 10.1053/j.jfas.2020.08.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/19/2019] [Accepted: 08/08/2020] [Indexed: 02/03/2023]
Abstract
Periarticular osseous defects pose a challenge when considering arthrodesis. Failure to restore the cubic content of bone can result in shortening and malalignment, as well as subsequent biomechanical issues. This study reports on 12 patients treated with patient-specific 3-D printed (7) and prefabricated titanium trusses (5). Twelve consecutive patients were treated for osseous defects of the forefoot, hindfoot, and ankle with patient-specific, 3D printed or prefabricated manufacturer titanium trusses. Seven were customized, patient-specific 3D printed trusses (4WEB, Frisco, Texas) and 5 were prefabricated manufacturer titanium trusses. All patients had a minimum of 6 months of clinical and radiographic follow-up. and no patients were lost to follow-up. Seven of the 12 patients had a computed tomography (CT) scan performed following surgery. Successful limb or ray salvage was achieved in 11 of 12 patients (91.7%). Six of 7 patients (85.7%) with a postoperative CT scan, went on to complete radiographic consolidation across all arthrodesis sites. The remaining 5 patients showed complete consolidation across the arthrodesis sites on plain film radiographs. Complications included one patient with a residual midfoot deformity that required a subsequent midfoot osteotomy in order to obtain a plantigrade foot following successful tibiotalocalcaneal (TTC) arthrodesis, and a below knee amputation in one patient who underwent revision TTC arthrodesis to salvage avascular necrosis of the talus that developed following the index procedure. Eleven of 12 patients undergoing arthrodesis demonstrated successful union with both customized, patient-specific 3D printed and prefabricated manufacturer titanium trusses on CT scans or radiographs. The average follow-up was 14 months. Reports on traditional methods of addressing periarticular defects in patients requiring arthrodesis show mixed results and relatively high complication rates. Custom, 3D printed and prefabricated titanium truss technology offers an alternative to traditional methods for large, periarticular osseous defects.
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Affiliation(s)
| | - Alan R Catanzariti
- Program Director, Foot & Ankle Residency Training Program, West Penn Hospital, Allegheny Health Network, Pittsburgh, PA.
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7
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Huang G, Pan ST, Qiu JX. The Clinical Application of Porous Tantalum and Its New Development for Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2021; 14:2647. [PMID: 34070153 PMCID: PMC8158527 DOI: 10.3390/ma14102647] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/06/2021] [Accepted: 05/13/2021] [Indexed: 12/13/2022]
Abstract
Porous tantalum (Ta) is a promising biomaterial and has been applied in orthopedics and dentistry for nearly two decades. The high porosity and interconnected pore structure of porous Ta promise fine bone ingrowth and new bone formation within the inner space, which further guarantee rapid osteointegration and bone-implant stability in the long term. Porous Ta has high wettability and surface energy that can facilitate adherence, proliferation and mineralization of osteoblasts. Meanwhile, the low elastic modulus and high friction coefficient of porous Ta allow it to effectively avoid the stress shield effect, minimize marginal bone loss and ensure primary stability. Accordingly, the satisfactory clinical application of porous Ta-based implants or prostheses is mainly derived from its excellent biological and mechanical properties. With the advent of additive manufacturing, personalized porous Ta-based implants or prostheses have shown their clinical value in the treatment of individual patients who need specially designed implants or prosthesis. In addition, many modification methods have been introduced to enhance the bioactivity and antibacterial property of porous Ta with promising in vitro and in vivo research results. In any case, choosing suitable patients is of great importance to guarantee surgical success after porous Ta insertion.
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Affiliation(s)
| | | | - Jia-Xuan Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China; (G.H.); (S.-T.P.)
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Abstract
Salvage arthrodesis for failed total ankle replacement can be a successful procedure. The decision to perform salvage arthrodesis is based on many factors, but the following are the most important indications: severe loss of bonestock (tibia, talus, or both), inadequate soft tissue coverage, or the inability to eradicate an infection. With few revision implants on the market, salvage arthrodesis is currently the most common treatment for failed replacement and justification for revision ankle replacement is limited when any of these factors are present.
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Affiliation(s)
- Samuel B Adams
- Division of Foot and Ankle Surgery, Department of Orthopaedic Surgery, Duke University Medical Center, 4709 Creekstone Drive, Durham, NC 27703, USA.
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9
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The progress on physicochemical properties and biocompatibility of tantalum-based metal bone implants. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2480-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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10
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Han Q, Wang C, Chen H, Zhao X, Wang J. Porous Tantalum and Titanium in Orthopedics: A Review. ACS Biomater Sci Eng 2019; 5:5798-5824. [PMID: 33405672 DOI: 10.1021/acsbiomaterials.9b00493] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Porous metal is metal with special porous structures, which can offer high biocompatibility and low Young's modulus to satisfy the need for orthopedic applications. Titanium and tantalum are the most widely used porous metals in orthopedics due to their excellent biomechanical properties and biocompatibility. Porous titanium and tantalum have been studied and applied for a long history until now. Here in this review, various manufacturing methods of titanium and tantalum porous metals are introduced. Application of these porous metals in different parts of the body are summarized, and strengths and weaknesses of these porous metal implants in clinical practice are discussed frankly for future improvement from the viewpoint of orthopedic surgeons. Then according to the requirements from clinics, progress in research for clinical use is illustrated in four aspects. Various creative designs of microporous and functionally gradient structure, surface modification, and functional compound systems of porous metal are exhibited as reference for future research. Finally, the directions of orthopedic porous metal development were proposed from the clinical view based on the rapid progress of additive manufacturing. Controllable design of both macroscopic anatomical bionic shape and microscopic functional bionic gradient porous metal, which could meet the rigorous mechanical demand of bone reconstruction, should be developed as the focus. The modification of a porous metal surface and construction of a functional porous metal compound system, empowering stronger cell proliferation and antimicrobial and antineoplastic property to the porous metal implant, also should be taken into consideration.
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Affiliation(s)
- Qing Han
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Chenyu Wang
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Hao Chen
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Xue Zhao
- Department of Endocrine and Metabolism, The First Hospital of Jilin University, Changchun, 130000 Jilin Province, China
| | - Jincheng Wang
- Department of Orthopedics, Second Hospital of Jilin University, Changchun, 130000 Jilin Province, China
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Chappell TM, Ebert CC, McCann KM, Hutchinson BL, Rodriguez-Collazo E. Distal tibial distraction osteogenesis-an alternative approach to addressing limb length discrepancy with concurrent hindfoot and ankle reconstruction. J Orthop Surg Res 2019; 14:244. [PMID: 31362774 PMCID: PMC6668173 DOI: 10.1186/s13018-019-1264-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 07/08/2019] [Indexed: 02/07/2023] Open
Abstract
Background Limb length discrepancy (LLD) in the setting of concurrent hindfoot and ankle deformity poses an added level of complexity to the reconstructive surgeon. Regardless of etiology, a clinically significant LLD poses additional challenges without a forthright and validated solution. The purpose of the current study is to determine whether reconstructive hindfoot and ankle surgery with concurrent lengthening through a distal tibial corticotomy is comparable to other treatment alternatives in the literature. Patients and methods A retrospective review of hindfoot and ankle deformity correction utilizing Ilizarov circular external fixation with concurrent distal tibial distraction osteogenesis from July 2009 to September 2014 was conducted. Results This study included 19 patients with a mean age of 47.47 ± 13.36 years with a mean follow up of 576.13 ± 341.89 days. The mean preoperative LLD was 2.70 ± 1.22 cm and the mean operatively induced LLD was 2.53 ± 0.59 cm. The mean latency period was 9.33 ± 3.47 days and distraction rate was 0.55 ± 0.16 mm/day. The mean distraction length was 2.14 ± 0.83 cm and mean duration of external fixation was 146.42 ± 58.69 days. The time to union of all hindfoot and ankle fusions was 121.00 ± 25.66 days with an overall fusion rate of 85.71%. Conclusions The successful treatment of hindfoot and ankle deformity correction in the setting of LLD using the technique of a distal tibial corticotomy and distraction osteogenesis is reported and illustrates an additional treatment technique with comparable measured outcomes to those previously described. We urge that each patient presentation be evaluated with consideration of all described approaches and associated literature to determine the current best reconstructive approach as future studies may validate or replace the accepted options at present.
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Affiliation(s)
- Todd M Chappell
- Franciscan Foot & Ankle Associates, 1608 S J St., 4th Floor, Tacoma, WA, 98405, USA.
| | - Casey C Ebert
- Department of Veterans Affairs, 2360 E Pershing Blvd, Cheyenne, WY, 82001, USA
| | - Kevin M McCann
- St. Cloud Orthopedics, 1901 Connecticut Ave South, Sartell, MN, 56377, USA
| | - Byron L Hutchinson
- Franciscan Foot & Ankle Institute, 34509 9th Ave S, Ste 306, Federal Way, WA, 98003, USA
| | - Edgardo Rodriguez-Collazo
- Department of Surgery, AMITA Health St. Joseph Hospital, Chicago Foot & Ankle Deformity Correction Center, 875 N. Dearborn St. Ste 400, Chicago, IL, 60610, USA
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12
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Abstract
There are several reconstructive procedures in foot and ankle surgery wherein structural grafts are needed to fill defects, restore height, and maintain correction while providing an osteoconductive environment until fusion occurs. Traditionally used autografts and allografts have their disadvantages and limitations. Porous tantalum, with stiffness similar to bone and its biocompatibility, can be a viable option in foot and ankle reconstructive procedures.
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Skowronek P, Olszewski P, Święszkowski W, Synder M, Sibiński M, Mazek J. Unrecoverable bi-products of drilling titanium alloy and tantalum metal implants: a pilot study. Hip Int 2018; 28:531-534. [PMID: 29756501 DOI: 10.1177/1120700018760306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Trabecular metal implants with a porous architecture that allows for the incorporation of bone into the implant during healing are gaining popularity in alloplastic revision procedures. The bi-products of drilling titanium alloy (Ti) and tantalum (Ta) implants have not been previously assessed. METHODS Four holes were drilled in each of 2 spatially porous trabecular implants, one Ta and the other Ti alloy (Ti-6Al-7Nb), for this pilot in vitro study. The particles were flushed out with a continuous flow of saline. The particles' weight and the volume were then measured using a Radwag XA 110/2X (USA) laboratory balance. The total volume of the obtained metal fines was measured by titration using a 10 mm3 measurement system. RESULTS A cobalt carbide bit was used since the holes could not be made with a standard bone drill. Each Ti and Ta implant lost 1.26 g and 2.48 g of mass, respectively. The volume of free particles recovered after each stage was 280 mm3 and 149 mm3, respectively. Approximately 0.6% of the total implant mass was not recovered after drilling (roughly 2% of the mass of the particles created by drilling), despite the use of 5 µm filters. CONCLUSIONS It is technically difficult to drill holes in Ti and Ta implants using standard surgical tools. The drilling process creates a considerable amount of metal particles, which cannot be recovered despite intensive flushing. This may have an adverse influence on the bio-functionality (survival) of the endoprosthesis and present deleterious systemic consequences.
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Affiliation(s)
- Paweł Skowronek
- 1 Clinic of Orthopaedic and Traumatology, Jan Kochanowski University of Kielce, Kielce, Poland
| | - Paweł Olszewski
- 1 Clinic of Orthopaedic and Traumatology, Jan Kochanowski University of Kielce, Kielce, Poland
| | - Wojciech Święszkowski
- 2 Department of Materials Engineering at the Warsaw University of Technology, Warsaw, Poland
| | - Marek Synder
- 3 Clinic of Orthopaedics and Paediatric Orthopaedics Medical University of Lodz, Lodz, Poland
| | - Marcin Sibiński
- 3 Clinic of Orthopaedics and Paediatric Orthopaedics Medical University of Lodz, Lodz, Poland
| | - Jacek Mazek
- 4 Centre for Specialised Surgery ORTOPEDIKA Warsaw, Warsaw, Poland
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Aubret S, Merlini L, Fessy M, Besse JL. Poor outcomes of fusion with Trabecular Metal implants after failed total ankle replacement: Early results in 11 patients. Orthop Traumatol Surg Res 2018; 104:231-237. [PMID: 29407072 DOI: 10.1016/j.otsr.2017.11.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 11/19/2017] [Accepted: 11/30/2017] [Indexed: 02/02/2023]
Abstract
INTRODUCTION One of the reasons for revision of total ankle replacement (TAR) implants is loosening due to subchondral cysts. Reconstruction and fusion of the ankle is often the first choice for revision procedures due to the large bone defects, which are typically filled with autograft and/or allograft. Filling the defect with a trabecular metal tantalum implant is a potential alternative given the biomechanical properties of this component. HYPOTHESIS Using tantalum as a spacer provides primary stability and contributes to fusion of the ankle joint after removal of failed TAR implants. METHODS Eleven patients underwent arthrodesis an average of 6.9 years after TAR. The mean height of the bone defect was 32mm. It was filled with a specially designed quadrangular implant (Trabecular Metal™, Zimmer/Biomet) combined with an iliac crest graft. Ten patients underwent tibio-talo-calcaneal (TTC) arthrodesis fixed with an angled retrograde nail and one patient underwent talocrural arthrodesis fixed with two plates (anterolateral and anteromedial). The clinical, functional (AOFAS and SF36 scores) and radiological (plain X-rays and CT scan) outcomes were determined. RESULTS At a mean follow-up of 19.3 months, the mean total AOFAS score was 56 (21-78) and the mean SF36 score was 60.5 (19-84). One patient was lost to follow-up and four patients still had pain. The tantalum implant was integrated in six patients. Five patients achieved fusion of the subtalar joint and 8 achieved fusion of the talocrural joint. Three patients required surgical revision. DISCUSSION Our hypothesis was not confirmed. The clinical outcomes after more than 1 year of follow-up are disappointing, as was the large number of nonunion cases and the lack of tantalum integration. These technical failures can be explained by insufficient construct stability and/or insufficient implant porosity. LEVEL OF EVIDENCE IV (retrospective cohort study).
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Affiliation(s)
- S Aubret
- Service de chirurgie orthopédique et traumatologique, centre hospitalier Lyon-Sud, hospices Civils de Lyon, 69495 Pierre-Bénite cedex, France; Service de chirurgie orthopédique et traumatologique, université Clermont Auvergne, CHU Clermont-Ferrand, 63000 Clermont-Ferrand, France.
| | - L Merlini
- Service de chirurgie orthopédique et traumatologique, centre hospitalier Lyon-Sud, hospices Civils de Lyon, 69495 Pierre-Bénite cedex, France
| | - M Fessy
- Laboratoire de biomécanique et mécanique des Chocs, IFSTTAR, LBMC UMR-T 9406, université Lyon 1, 69675 Bron cedex, France; Service de chirurgie orthopédique et traumatologique, centre hospitalier Lyon-Sud, hospices Civils de Lyon, 69495 Pierre-Bénite cedex, France
| | - J-L Besse
- Laboratoire de biomécanique et mécanique des Chocs, IFSTTAR, LBMC UMR-T 9406, université Lyon 1, 69675 Bron cedex, France; Service de chirurgie orthopédique et traumatologique, centre hospitalier Lyon-Sud, hospices Civils de Lyon, 69495 Pierre-Bénite cedex, France
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15
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Skowronek P, Olszewski P, Święszkowski W, Sibiński M, Synder M, Polguj M. An evaluation of the potential consequences of drilling titanium and tantalum implants during surgery - a pilot study. BMC Musculoskelet Disord 2017; 18:426. [PMID: 29100511 PMCID: PMC5670512 DOI: 10.1186/s12891-017-1784-x] [Citation(s) in RCA: 2] [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: 05/25/2017] [Accepted: 10/23/2017] [Indexed: 11/12/2022] Open
Abstract
Background The aim of the study was to evaluate the potential consequences of drilling titanium alloy (Ti) and tantalum (Ta) implants. Methods During an in vitro study, four holes were made in each of two spatially porous trabecular implants: one Ta and the other Ti alloy (Ti-6Al-7Nb). The weight and the volume of particles produced during the drilling were then measured using a Radwag XA 110/2X (USA) laboratory balance. Results The loss of mass of the Ti and Ta implants was respectively 1.26 g and 2.48 g, and the volume of free particles was respectively 280 mm3 and 149 mm3. The particles were recovered after each stage. Despite the use of 5 μm filters, around 0.6% of the total implant mass from both implants was not recovered after drilling (roughly 2% of the mass of the particles created). Conclusion It is technically difficult to make holes in Ti and Ta implants using standard surgical tools, and the process creates a significant amount of metal particles which cannot be removed, despite intensive flushing. This may have a potentially adverse influence on the survival of the implant and result in negative systemic consequences.
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Affiliation(s)
- Paweł Skowronek
- Clinic of Orthopedic and Traumatology, Regional Hospital and Kochanowski Medical University, Kielce, Poland
| | - Paweł Olszewski
- Clinic of Orthopedic and Traumatology, Regional Hospital and Kochanowski Medical University, Kielce, Poland
| | - Wojciech Święszkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Marcin Sibiński
- Clinic of Orthopedics and Pediatric Orthopedics, Medical University of Lodz, Lodz, Poland
| | - Marek Synder
- Clinic of Orthopedics and Pediatric Orthopedics, Medical University of Lodz, Lodz, Poland
| | - Michał Polguj
- Department of Angiology, Medical University of Łódź, ul. Narutowicza 60, 90-136, Łódź, Poland.
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16
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The AES total ankle arthroplasty analysis of failures and survivorship at ten years. INTERNATIONAL ORTHOPAEDICS 2017; 41:2525-2533. [PMID: 28871360 DOI: 10.1007/s00264-017-3605-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 08/07/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND AES mobile-bearing total ankle replacement was developed from the Buechel Pappas model. It was withdrawn in 2009, after identification of a higher than expected complication rate. The purpose of the current study was to analyse clinical outcomes, failures and survival of the initial series of 50 AES published in 2009. METHODS In this single-centre continuous prospective study (2003-2006), 50 AES prostheses were included. Pre-operative osteoarthritis was mainly post-traumatic (50%) and secondary to instability (36%). All patients were assessed with clinical and radiographic follow-up at six months, one year, two years and every two to three years thereafter. A CT-scan was systematically performed before procedure, and at two years, five years and ten years. At last follow-up, all patients with TAR had a functional (SF 36, AOFAS) and clinical assessment. All complications or surgical events were analysed. RESULTS The mean follow-up was ten ± two years (range, 9-13). The mean AOFAS score was 75 points (range, 26-100). The mean SF 36 score was 69 points (range, 35-97). There was a significant deterioration in AOFAS score at five years and at last follow-up (p < 0.05). Fifteen TARs underwent reoperation for cyst curettage-graft because of development of periprosthetic lesions. Six of them ended up with prosthesis removal-arthrodesis. At the last follow-up, 14 TARs were removed for arthrodesis. Of the 30 prostheses seen at last follow-up, four are awaiting prosthesis removal-arthrodesis and one for cyst curettage-graft. The ten year survivorships free of any prosthesis removal or arthrodesis and free of any reoperation were 68% (95% CI, 55-85) and 57% (95% CI, 44-74), respectively. CONCLUSION Our data suggested a high rate of reoperation. Overall ten year survival was lower than with other designs, particularly due to cyst lesions. LEVEL OF EVIDENCE Level IV, prospective case series.
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17
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Usuelli FG, Manzi L, Brusaferri G, Neher RE, Guelfi M, Maccario C. Sagittal tibiotalar translation and clinical outcomes in mobile and fixed-bearing total ankle replacement. Foot Ankle Surg 2017; 23:95-101. [PMID: 28578801 DOI: 10.1016/j.fas.2016.08.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 07/20/2016] [Accepted: 08/16/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND Sagittal implant malalignment after total ankle replacement (TAR) has been considered to be a possible cause for premature implant failure. In a prior study, the change over time of the tibiotalar ratio (T-T ratio), which is the ratio between the posterior longitudinal talar length and the full longitudinal talar length, was assessed in 66 TARs where an unconstrained, mobile-bearing implant was implanted. The analysis documented an increase in the T-T ratio between 2 and 6 months post-surgery (on average from 34.6% to 37.2%). We hypothesized that this change might have been related to the presence of a mobile-bearing insert. In order to test our hypothesis, we designed a study to compare the translation of the talus in TARs performed with an unconstrained, mobile-bearing implant (designated the "Mobile ankle") and those performed with a semi-constrained, fixed-bearing implant (designated the "Fixed ankle"). METHODS The study included 71 consecutive patients (71 ankles) who underwent TAR with the Mobile ankle and 24 consecutive patients (24 ankles) who received the Fixed ankle from May 2011 to December 2014. Patients were assessed clinically and radiologically preoperatively (T0), at 6 months (T2) and 12 months (T3) post-surgery. There was also a radiological assessment at 2 months post-surgery (T1). RESULTS The comparison of the T-T ratio between the two implant groups and over time indicated an interaction between time and group, therefore the changes of the T-T ratio over time were affected by the implant type factor (P<0.001). The changes of the postoperative T-T ratio over time were not significant in the Fixed ankle group (35.7±6.7% at T1, T2, and T3; P=1.0 for each pairwise comparison). In the Mobile ankle group, the T-T ratio at 2 months (34.4±5.5%) was significantly different to the T-T ratio at 6 months (37.0±5.8%; P<0.001; i.e. there was a significant posterior translation of the talus). The AOFAS score increased from preop to 12 months post-surgery in both the Mobile ankle (72.7±12.8 at 12 months; P<0.001) and the Fixed ankle (85.0±9.7 at 12 months; P<0.001). CONCLUSION The significant posterior translation of the talus from 2 to 6 months documented only in the Mobile ankle group may have been associated with the presence of the mobile bearing interface.
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Affiliation(s)
| | - Luigi Manzi
- C.A.S.C.O., IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | | | - Robert E Neher
- Clinical Research Department, Zimmer Biomet, Winterthur, Switzerland
| | - Matteo Guelfi
- Orthopaedic and Traumatolgy Division, University "G. d'Annunzio", Chieti-Pescara, Italy
| | - Camilla Maccario
- C.A.S.C.O., IRCCS Istituto Ortopedico Galeazzi, Milan, Italy; Universita' degli Studi di Milano, Italy
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18
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Alrashidi Y, Galhoum AE, Wiewiorski M, Herrera-Pérez M, Hsu RY, Barg A, Valderrabano V. How To Diagnose and Treat Infection in Total Ankle Arthroplasty. Foot Ankle Clin 2017; 22:405-423. [PMID: 28502355 DOI: 10.1016/j.fcl.2017.01.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Periprosthetic infection after total ankle arthroplasty (TAA) is a serious complication, often requiring revision surgery, including revision arthroplasty, conversion to ankle arthrodesis, or even amputation. Risk factors for periprosthetic ankle infection include prior surgery at the site of infection, low functional preoperative score, diabetes, and wound healing problems. The clinical presentation of patients with periprosthetic ankle joint infection can be variable and dependent on infection manifestation: acute versus chronic. The initial evaluation in patients with suspected periprosthetic joint infections should include blood tests: C-reactive protein and erythrocyte sedimentation rate. Joint aspiration and synovial fluid analysis can help confirm suspected periprosthetic ankle infection.
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Affiliation(s)
- Yousef Alrashidi
- Orthopaedic Department, College of Medicine, Taibah University, P.O. Box 30001, Almadinah Almunawwarah 41411, Kingdom of Saudi Arabia
| | - Ahmed E Galhoum
- Nasser Institute for Research and Treatment, Cairo, Egypt; Department of Orthopaedics and Traumatology, Swiss Ortho Center, Schmerzklinik Basel, Hirschgässlein 15, Basel 4010, Switzerland
| | - Martin Wiewiorski
- Orthopaedic and Trauma Department, Kantonsspital Winterthur, Brauerstrasse 15, 8401 Winterthur, Switzerland
| | - Mario Herrera-Pérez
- Orthopaedic Department, University Hospital of Canary Islands, La Laguna, Calle El Pilar 50 4 piso, 38002 Tenerife, Spain
| | - Raymond Y Hsu
- Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, USA
| | - Alexej Barg
- Department of Orthopaedics, University of Utah, 590 Wakara Way, Salt Lake City, UT 84108, USA
| | - Victor Valderrabano
- Orthopaedic Department, Swiss Ortho Center, Schmerzklinik Basel, Swiss Medical Network, Hirschgässlein 15, Basel 4010, Switzerland.
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19
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Kreulen C, Lian E, Giza E. Technique for Use of Trabecular Metal Spacers in Tibiotalocalcaneal Arthrodesis With Large Bony Defects. Foot Ankle Int 2017; 38:96-106. [PMID: 27920334 DOI: 10.1177/1071100716681743] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
There are many causes of large bone defects in the tibiotalar joint that need to be definitively treated with a tibiotalocalcaneal (TTC) arthrodesis. Some of the challenges of a large defect are its effect on leg length and the complications associated with trying to fill the defect with structural bone graft. We present an operative strategy involving the use of a trabecular metal implant, a TTC nail that utilized 2 forms of compression, and Reamer/Irrigator/Aspirator (RIA) autograft, to address limitations of previous operative approaches and reliably treat this operative challenge.
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Affiliation(s)
- Christopher Kreulen
- 1 Department of Orthopaedics, University of California, Davis, Sacramento, CA, USA
| | - Evan Lian
- 1 Department of Orthopaedics, University of California, Davis, Sacramento, CA, USA
| | - Eric Giza
- 1 Department of Orthopaedics, University of California, Davis, Sacramento, CA, USA
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20
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Mulhern JL, Protzman NM, White AM, Brigido SA. Salvage of Failed Total Ankle Replacement Using a Custom Titanium Truss. J Foot Ankle Surg 2016; 55:868-73. [PMID: 26884264 DOI: 10.1053/j.jfas.2015.12.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Indexed: 02/03/2023]
Abstract
Subsidence of the talar component results in significant morbidity after total ankle replacement. When recognized, prompt revision could be needed to preserve the function of the implant; however, this is not always the case. In situations in which the implant cannot be revised, tibiotalocalcaneal arthrodesis might be necessary to salvage the extremity. The purpose of the present report is to describe the use of a custom titanium alloy truss to fill a bony void created by explantation of the implant components. Total ankle replacement was performed as the initial surgery to address end-stage osteoarthritis. Two years after the index procedure, the patient underwent revision of the polyethylene and talar components with subtalar arthrodesis secondary to progressive subtalar osteoarthritis and talar subsidence. The implant subsequently became infected and was removed. The patient underwent re-implantation after the infection had resolved, but significant talar subsidence required conversion to a tibiotalocalcaneal arthrodesis with a custom titanium alloy truss and retrograde intramedullary nail. At the most recent follow-up appointment, the patient was weightbearing on a stable extremity and pain free. Radiographic examination confirmed appropriate implant alignment and evidence of bone formation throughout the titanium truss. Although our results are restricted to a single case with initial, limited follow-up data, combining sound structural mechanics with an open architecture and unique texture, the custom titanium truss appears to maintain the limb length and promote healing across a large void.
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Affiliation(s)
- Jennifer L Mulhern
- Fellow, Foot and Ankle Reconstruction, Coordinated Health, Bethlehem, PA
| | - Nicole M Protzman
- Research Associate, Department of Clinical Education and Research, Coordinated Health, Allentown, PA
| | - Amari M White
- Resident, Podiatric Residency Program, New York Methodist Hospital, Brooklyn, NY
| | - Stephen A Brigido
- Fellowship Director, Foot and Ankle Reconstruction, and Department Chair, Foot and Ankle Department, Coordinated Health, Bethlehem, PA; and Clinical Professor of Surgery, Clinical Sciences Department, The Commonwealth Medical College, Scranton, PA.
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21
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Roukis TS, Kang RB. Vascularized Pedicled Fibula Onlay Bone Graft Augmentation for Complicated Tibiotalocalcaneal Arthrodesis With Retrograde Intramedullary Nail Fixation: A Case Series. J Foot Ankle Surg 2016; 55:857-67. [PMID: 26810126 DOI: 10.1053/j.jfas.2015.12.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Indexed: 02/03/2023]
Abstract
Tibiotalocalcaneal arthrodesis stabilized with retrograde intramedullary nail fixation is associated with a high incidence of complications. This is especially true when performed with a bulk structural allograft and poor soft tissue quality. In select high-risk limb salvage cases, we have augmented tibiotalocalcaneal arthrodesis procedures stabilized using retrograde intramedullary nail fixation with a vascularized pedicled fibular onlay bone graft. We present the data from 10 such procedures with a mean follow-up period of 10.9 ± 5.4 (range 6 to 20) months involving 10 patients (9 males and 1 female). The etiology was avascular osteonecrosis of the talus and/or distal tibia and a resultant large volume cavitary bone defect (8 ankles), severe equinocavovarus contracture (1 ankle), and failed total ankle replacement (1 ankle). A frozen femoral head bulk allograft was used twice, a whole frozen talus allograft once, and a freeze-dried calcaneal allograft once. The fibula was mobilized with intact musculoperiosteal perforating branches of the peroneal artery as a vascularized pedicle onlay bone graft fixated with a screw and washer construct. The mean fibular graft length was 10.2 ± 2.3 cm. The mean interval to radiographic fusion was 2.6 ± 0.6 months and to weightbearing was 3.1 ± 1.4 months. Two stable bulk allograft-host bone and fibular graft-host bone nonunions occurred after intramedullary nail hardware failure. Tibiotalocalcaneal arthrodesis augmented by vascularized pedicled fibular graft stabilized with retrograde compression intramedullary nail fixation offers a reliable option for complex salvage situations when few other options exist.
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Affiliation(s)
- Thomas S Roukis
- Orthopaedic Center, Gundersen Healthcare System, La Crosse, WI.
| | - Rachel B Kang
- Department of Medical Education, Gundersen Medical Foundation, La Crosse, WI
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