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Mihalko WM, Jove M, Jove N, Calkins TE, Gehlert RJ. United States Experience With a Femoral Neck Retaining Total Hip Arthroplasty Stem: A Retrospective Study With Control Comparison From the Literature. J Arthroplasty 2024; 39:750-753. [PMID: 37640246 DOI: 10.1016/j.arth.2023.08.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Femoral neck retaining prostheses have gained popularity in Europe, but the United States has not seen the same trends occurring. Previous reports demonstrate high survivorship for these implants, but to our knowledge, there are no reports examining US data. METHODS After institutional review board approval, 824 primary total hip arthroplasties utilizing a femoral neck-retaining prosthesis were examined for femoral component survivorship rates. European studies were systematically reviewed to determine survivorship rates. The data were used to formulate a Kaplan-Meier survivorship curve and compare US data to that of the European studies. RESULTS European studies demonstrated survivorship rates for all causes of 97.7 and 99.0% for aseptic loosening at an average of 6 years (range, 4.5 to 10). The current study demonstrated an all-cause 94% Kaplan-Meier survivorship estimate at 5 years and when aseptic loosening only was considered, survivorship increased to 99.4% at 5 years and 98.4% at 11 years. CONCLUSION This femoral neck-retaining prosthesis demonstrated excellent survivorship that is comparable to the rates seen in European studies as well as the rates of standard and mid-stem prostheses in the United States.
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Affiliation(s)
- William M Mihalko
- Campbell Clinic Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Maurice Jove
- Atlanta Bone and Joint Specialists, Atlanta, Georgia
| | - Nathan Jove
- Atlanta Bone and Joint Specialists, Atlanta, Georgia
| | - Tyler E Calkins
- Campbell Clinic Department of Orthopaedic Surgery and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Rick J Gehlert
- Department of Orthopaedic Surgery, University of New Mexico, Albuquerque, New Mexico
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Winter LD, Helmig KC, Goodwyn PJ, Gehlert RJ. Compression of the Rectum, Bladder, and External Iliac Vein Due to Hip Arthroplasty-Related Pseudotumor. Cureus 2021; 13:e20671. [PMID: 35106214 PMCID: PMC8786572 DOI: 10.7759/cureus.20671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/24/2021] [Indexed: 11/16/2022] Open
Abstract
A 58-year-old male who underwent left total hip arthroplasty in 1988 for post-traumatic arthritis after an operatively-treated acetabular fracture presented with progressive left hip pain, lower extremity swelling, urinary urgency, constipation, and tenesmus (the feeling of needing to pass stool despite having an empty colon). Imaging demonstrated massive pseudotumor causing iliac vein compression and significant displacement of the rectum and bladder requiring decompression in combination with general surgery followed by revision hip arthroplasty four months later. This case highlights a unique constellation of symptoms due to pseudotumor after total hip arthroplasty, as well as the severity to which pseudotumor can progress, requiring staged decompression with general surgery before revision.
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Dickens AJ, Salas C, Rise L, Murray-Krezan C, Taha MR, DeCoster TA, Gehlert RJ. Titanium mesh as a low-profile alternative for tension-band augmentation in patella fracture fixation: A biomechanical study. Injury 2015; 46:1001-6. [PMID: 25769202 DOI: 10.1016/j.injury.2015.02.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 02/19/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVES We performed a simple biomechanical study to compare the fixation strength of titanium mesh with traditional tension-band augmentation, which is a standard treatment for transverse patella fractures. We hypothesised that titanium mesh augmentation is not inferior in fixation strength to the standard treatment. METHODS Twenty-four synthetic patellae were tested. Twelve were fixed with stainless steel wire and parallel cannulated screws. Twelve were fixed with parallel cannulated screws, augmented with anterior titanium mesh and four screws. A custom test fixture was developed to simulate a knee flexed to 90°. A uniaxial force was applied to the simulated extensor mechanism at this angle. A non-inferiority study design was used to evaluate ultimate force required for failure of each construct as a measure of fixation strength. Stiffness of the bone/implant construct, fracture gap immediately prior to failure, and modes of failure are also reported. RESULTS The mean difference in force at failure was -23.0 N (95% CI: -123.6 to 77.6N) between mesh and wire constructs, well within the pre-defined non-inferiority margin of -260 N. Mean stiffness of the mesh and wire constructs were 19.42 N/mm (95% CI: 18.57-20.27 N/mm) and 19.49 N/mm (95% CI: 18.64-20.35 N/mm), respectively. Mean gap distance for the mesh constructs immediately prior to failure was 2.11 mm (95% CI: 1.35-2.88 mm) and 3.87 mm (95% CI: 2.60-5.13 mm) for wire constructs. CONCLUSIONS Titanium mesh augmentation is not inferior to tension-band wire augmentation when comparing ultimate force required for failure in this simplified biomechanical model. Results also indicate that stiffness of the two constructs is similar but that the mesh maintains a smaller fracture gap prior to failure. The results of this study indicate that the use of titanium mesh plating augmentation as a low-profile alternative to tension-band wiring for fixation of transverse patella fractures warrants further investigation.
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Affiliation(s)
- Aaron J Dickens
- Department of Orthopaedics and Rehabilitation, The University of New Mexico Health Sciences Center, MSC10 5600, 1 University of New Mexico, Albuquerque, NM 87131, United States.
| | - Christina Salas
- Department of Orthopaedics and Rehabilitation, The University of New Mexico Health Sciences Center, MSC10 5600, 1 University of New Mexico, Albuquerque, NM 87131, United States; Center for Biomedical Engineering, The University of New Mexico Health Sciences Center, MSC01 1141, 1 University of New Mexico, Albuquerque, NM 87131, United States
| | - LeRoy Rise
- Department of Orthopaedics and Rehabilitation, The University of New Mexico Health Sciences Center, MSC10 5600, 1 University of New Mexico, Albuquerque, NM 87131, United States
| | - Cristina Murray-Krezan
- Division of Epidemiology, Biostatistics, and Preventive Medicine, Department of Internal Medicine, The University of New Mexico Health Sciences Center, MSC10 5550, 1 University of New Mexico, Albuquerque, NM 87131, United States
| | - Mahmoud Reda Taha
- Department of Orthopaedics and Rehabilitation, The University of New Mexico Health Sciences Center, MSC10 5600, 1 University of New Mexico, Albuquerque, NM 87131, United States; Center for Biomedical Engineering, The University of New Mexico Health Sciences Center, MSC01 1141, 1 University of New Mexico, Albuquerque, NM 87131, United States
| | - Thomas A DeCoster
- Department of Orthopaedics and Rehabilitation, The University of New Mexico Health Sciences Center, MSC10 5600, 1 University of New Mexico, Albuquerque, NM 87131, United States
| | - Rick J Gehlert
- Department of Orthopaedics and Rehabilitation, The University of New Mexico Health Sciences Center, MSC10 5600, 1 University of New Mexico, Albuquerque, NM 87131, United States
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Modhia UM, Dickens AJ, Glezos CD, Gehlert RJ, DeCoster TA. Under-utilization of the OTA Fracture Classification in the orthopaedic trauma literature. Iowa Orthop J 2014; 34:50-54. [PMID: 25328459 PMCID: PMC4127719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND The OTA Fracture Classification is designed to provide a common language and facilitate effective communication among orthopaedic surgeons. We attempted to measure the degree to which this classification is currently being utilized in orthopaedic trauma literature. METHODS We reviewed all of the articles in the JOT in 2011. We determined which of these articles could have appropriately utilized the 2007 OTA Classification. We calculated the percentage that mentioned and correctly cited this classification system as a reference. RESULTS There were 145 articles in 2011. One hundred of these articles were appropriate for classifying a fracture. 38% of these articles utilized the OTA classification in the text. Only 42% of articles mentioning the OTA Classification cited a reference. 38% of these citations used the old (1996) OTA Classification reference, and only 8% overall correctly cited the 2007 OTA Classification reference. 51% of articles mentioned some other classification system; 21 in addition to OTA and 30 instead of the OTA classification. CONCLUSIONS The OTA Fracture Classification is being used more commonly (38%) but is not routinely used or correctly cited (8%) in articles currently being published in the Journal of Orthopaedic Trauma, despite the fact that it is "required" according to the instructions to authors. We conclude that future authors should utilize and correctly reference the 2007 OTA Classification so that the benefits of a common language can be realized. Routine and consistent utilization of the classification may ultimately lead to more consistency and improved interpretability of treatment outcomes in published orthopaedic trauma research. LEVEL OF EVIDENCE Level-III case-control study, decision analysis.
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Affiliation(s)
- U M Modhia
- University of New Mexico Department of Or thopaedics and Rehabilitation Albuquerque, NM
| | - A J Dickens
- University of New Mexico Department of Or thopaedics and Rehabilitation Albuquerque, NM
| | - C D Glezos
- Virginia Commonwealth University School of Medicine Richmond, VA
| | - R J Gehlert
- University of New Mexico Department of Or thopaedics and Rehabilitation Albuquerque, NM
| | - T A DeCoster
- University of New Mexico Department of Or thopaedics and Rehabilitation Albuquerque, NM
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Abstract
Pelvic crescent fracture, also known as sacroiliac fracture-dislocation, is traditionally considered as a lateral compression injury and a vertically stable injury. Thirty consecutive cases were analyzed and it was found that 63% of cases were caused by lateral compression (LC), 27% by anteroposterior compression (APC), and 10% by vertical shear (VS). APC and VS injuries cause significant displacement of the anterior iliac fragment, but 21% of LC injury cases showed minimal displacement and were treated successfully with nonoperative treatment. Different injury mechanisms also produce different types of pelvic instability. More important, different injury mechanisms produce distinct radiographic fracture patterns regarding the obliquity of the fracture line and fracture surface. These differences in the fracture pattern will influence the decision of internal fixation options. Therefore, treatment of pelvic crescent fractures should be based on individual analysis of injury mechanism and radiographic fracture pattern.
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Affiliation(s)
- Rick J Gehlert
- Department of Orthopaedics and Rehabilitation, University of New Mexico, Albuquerque, New Mexico
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Abstract
Because of difficulty in managing posttraumatic segmental bone defects and the resultant poor outcomes, amputation historically was the preferred treatment. Massive cancellous bone autograft has been the principal alternative to amputation. Primary shortening or use of the adjacent fibula as a graft also has been used to attempt limb salvage. Of more recent methods of management, bone transport with distraction osteogenesis has been suggested as the leading option for defects of 2 to 10 cm, but problems include delayed union at the docking site and prolonged treatment time. Free vascularized bone transfer has been suggested as the leading option for defects of 5 to 12 cm, but hypertrophy of the graft is unreliable and late fracture, common. Bone graft substitutes continue to be developed, but they have not yet reached clinical efficacy for posttraumatic segmental bone defects. Although each of the new techniques has shown some limited success, complications remain common.
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Affiliation(s)
- Thomas A DeCoster
- Professor and Vice Chair, Department of Orthopedics and Rehabilitation, University of New Mexico, Albuquerque, NM 87131-5296, USA
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Brown GA, Firoozbakhsh K, Gehlert RJ. Three-dimensional CT modeling versus traditional radiology techniques in treatment of acetabular fractures. Iowa Orthop J 2001; 21:20-4. [PMID: 11813946 PMCID: PMC1888200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Recently, the authors have used the computer-generated three-dimensional (3-D) CT moving images for preoperative planning and screw/pin insertion in more than 28 cases involving plate and screw fixation of complex acetabular fractures. The authors also used stereolithography (wax or plastic 3-D model of bony anatomy) to develop a computer-generated "clip on" interpositioning template for accurate placement of plate and screws. Application of these new technologies gives the surgeon precise information about the fracture patterns and provides an effective means for preoperative planning and accurate fixation of acetabular fractures. The accuracy of the 3-D virtual presentation of the anatomy is impressive and was substantiated by phantom studies. Postoperation CT revealed no case of screw penetration in the joint. Among other benefits over conventional surgical technique, the computer-assisted surgery provided decreased operative time and morbidity, decreased radiation exposure, and obviated the need for oblique, inlet and outlet roentgen views of the pelvis for preoperative planning. A case report specifically demonstrates preoperative planning for reconstruction of acetabular fracture.
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Affiliation(s)
- G A Brown
- Department of Orthopaedics and Rehabilitation, School of Medicine, University of New Mexico, Albuquerque 87131,USA
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