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Sayyed-Hosseinian SH, Shirazinia M, Arabi H, Aghaee MA, Vahedi E, Bagheri F. Does the postoperative quality of reduction, regardless of the surgical method used in treating a calcaneal fracture, influence patients' functional outcomes? BMC Musculoskelet Disord 2023; 24:562. [PMID: 37430205 DOI: 10.1186/s12891-023-06697-z] [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: 05/29/2023] [Accepted: 07/05/2023] [Indexed: 07/12/2023] Open
Abstract
BACKGROUND The extensile lateral approach (ELA) and sinus tarsi approach (STA) are commonly utilized for surgically treating calcaneal fractures. This study compared the outcomes of ELA and STA in the management of calcaneal fractures and assessed the influence of postoperative quality of reduction on functional and pain scores. METHODS The study included 68 adults with Sanders type-II and type-III calcaneal fractures who underwent either ELA or STA surgery. Pre- and postoperative radiographs and computed tomography scans were analyzed, and functional and pain scores were evaluated using the Manchester Oxford Foot Questionnaire (MOXFQ), American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, and Visual Analogue Score (VAS) during follow-up visits. RESULTS Out of the total patients, 50 underwent ELA surgery while 18 underwent STA surgery. The anatomic (excellent) reduction was achieved in 33 (48.5%) patients. There were no significant differences between the ELA and STA groups concerning functional scores, pain scores, the proportion of excellent reduction, and complications. Additionally, anatomic reduction, compared to near or non-anatomic (good, fair, or poor) reduction, demonstrated a decrease in MOXFQ (unstandardized β coefficient: -13.83, 95% CI: -25.47 to -2.19, p = 0.021), an increase in AOFAS (unstandardized β coefficient: 8.35, 95% CI: 0.31 to 16.38, p = 0.042), and a reduction in VAS pain (unstandardized β coefficient: -0.89, 95% CI: -1.93 to -0.16, p = 0.095) scores. CONCLUSION In conclusion, we found no significant differences regarding complications, excellent reduction, and functional scores between STA and ELA surgeries. Therefore, STA may be an effective alternative for the treatment of calcaneal fractures in Sanders type II and type III calcaneal fractures. Furthermore, the anatomic reduction of the posterior facet correlated with improved functional scores, emphasizing the importance of achieving it for restoring foot function regardless of surgery type or time between injury and surgery.
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Affiliation(s)
| | - Matin Shirazinia
- Orthopedic Research Center, Shahid Kamyab Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
- Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Arabi
- Orthopedic Research Center, Shahid Kamyab Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.
- Department of Orthopedic Surgery, Shahid Kamyab Hospital, Fadayian Eslam Street, Mashhad, Iran.
| | - Monavar Afzal Aghaee
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ehsan Vahedi
- Orthopedic Research Center, Shahid Kamyab Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farshid Bagheri
- Orthopedic Research Center, Shahid Kamyab Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
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Stefanov A, Ivanov S, Zderic I, Baltov A, Rashkov M, Gehweiler D, Richards G, Gueorguiev B, Enchev D. Comminuted intraarticular calcaneal fractures: Multiplanar VA locked plating and interlocked nailing incorporate longitudinal strut and provide superior stability - a biomechanical cadaveric study. Injury 2022; 53:3543-3552. [PMID: 35810043 DOI: 10.1016/j.injury.2022.06.036] [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: 12/08/2021] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 02/02/2023]
Abstract
Treatment of comminuted intraarticular calcaneal fractures remains controversial and challenging. The aim of this study was to investigate the biomechanical performance of three different methods for fixation of such fractures. Comminuted calcaneal fractures, including Sanders III AB fracture of the posterior facet and Kinner II B fracture of the calcaneocuboid joint (CCJ) articular calcaneal surface, were created in 18 human cadaveric lower legs by osteotomizing. The ankle joint, medial soft tissues and midtarsal bones along with their ligaments were preserved. The specimens were randomized to three groups for fixation with either (1) 2.7 mm variable-angle locking lateral calcaneal plate (Group 1), (2) 2.7 mm variable-angle locking anterolateral calcaneal plate in combination with one 4.5 mm and one 6.5 mm cannulated screws (Group 2), or (3) interlocking calcaneal nail with 3.5 mm screws in combination with three separate 4.0 mm cannulated screws (Group 3). All specimens were biomechanically tested to failure under axial loading in midstance foot position. Each test commenced with a quasi-static compression ramp from 50 to 200 N, followed by progressively increasing cyclic loading at 2 Hz. Starting from 200 N, the peak load of each cycle increased at a rate of 0.2 N/cycle. Interfragmentary movements were captured by motion tracking. In addition, mediolateral X-rays were taken every 250 cycles with a triggered C-arm. Böhler angle after 5000 cycles (1200 N peak load) increased significantly more in Group 1 compared to both other groups (P ≤ 0.020). Varus deformation of 10° between the calcaneal tuberosity and the lateral calcaneal fragments was reached at significantly lower number of cycles in Group 1 compared the other groups (P ≤ 0.017). Both cycles to 10° plantar gapping between the anterior process and the calcaneal tuberosity fragments, and 2 mm displacement at the CCJ articular calcaneal surface revealed no significant differences among the groups (P ≥ 0.773). From a biomechanical perspective, treatment of comminuted intraarticular calcaneal fractures using anterolateral variable-angle locking plate with additional longitudinal screws or interlocked nail in combination with separate transversal screws provides superior stability as opposed to lateral variable-angle locked plating only.
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Affiliation(s)
- A Stefanov
- AO Research Institute Davos, Davos, Switzerland; University Multiprofile Hospital for Active Treatment and Emergency Medicine 'N. I. Pirogov', Sofia, Bulgaria.
| | - S Ivanov
- AO Research Institute Davos, Davos, Switzerland; Medical University of Varna, Varna, Bulgaria
| | - I Zderic
- AO Research Institute Davos, Davos, Switzerland
| | - A Baltov
- University Multiprofile Hospital for Active Treatment and Emergency Medicine 'N. I. Pirogov', Sofia, Bulgaria
| | - M Rashkov
- University Multiprofile Hospital for Active Treatment and Emergency Medicine 'N. I. Pirogov', Sofia, Bulgaria
| | - D Gehweiler
- AO Research Institute Davos, Davos, Switzerland
| | - G Richards
- AO Research Institute Davos, Davos, Switzerland
| | | | - D Enchev
- University Multiprofile Hospital for Active Treatment and Emergency Medicine 'N. I. Pirogov', Sofia, Bulgaria
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Surgeon case volume and the risk of complications following surgeries of displaced intra-articular calcaneal fracture. Foot Ankle Surg 2022; 28:1002-1007. [PMID: 35177328 DOI: 10.1016/j.fas.2022.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/20/2022] [Accepted: 02/10/2022] [Indexed: 02/04/2023]
Abstract
PURPOSE This study aimed to address the relationship between surgeon volume and the risk of complications following surgeries of displaced intra-articular calcaneal fractures (DIACFs). METHODS We retrospectively reviewed the medical records and the follow-up registers for patients who underwent open reduction and internal fixation with plate/screws in our center between January 2015 and June 2020. Surgeon volume was defined as the number of surgically treated calcaneal fractures within the past 12 months, and was dichotomized on basis of the optimal cut-off value. The outcome measure was the documented overall complications within 1 year after surgery. Four logistics regression models were constructed to examine the potential relationship between surgeon volume and complications. RESULTS Among 585 patients, 49 had documented complications, representing an overall rate of 8.4%. The overall complication rate was 20.0% (22/111) in patients operated on by the low-volume surgeons and 5.7% (27/474) by the high-volume surgeons, with a significant difference (p < 0.001). The 4 multivariate analyses showed steady and robust inverse volume-complication relationship, with OR ranging from 3.8 to 4.4. The restricted cubic splines adjusted for total covariates showed the non-linear fitting "L-shape" or "reverse J-shape" curve (p = 0.041), and the OR was reduced until 10 cases, beyond which the curve leveled. CONCLUSIONS Our findings reflected the important role of maintaining necessary operative cases, potentially informing optimized surgical care management.
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Wilmsen L, Neubert A, Windolf J, Icks A, Richter B, Thelen S. Screw fixation in the treatment of displaced intra-articular calcaneus fractures: a systematic review protocol. Syst Rev 2022; 11:199. [PMID: 36089599 PMCID: PMC9465885 DOI: 10.1186/s13643-022-02049-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 08/08/2022] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND The Calcaneus is the largest bone of the foot and the most frequent tarsal bone to be fractured. Overall, it causes round about 10 cases per 100,000 residents per year mainly in men. Especially displaced intra-articular calcaneus fractures often have early and late complications and its associated disability. There are various strategies for the treatment of displaced intra-articular calcaneus fractures, but the gold standard is still subject of a long-standing controversy. Minimally invasive procedures became more common in an attempt to reduce the high rate of complications associated with open reduction and internal fixation. With the increase in minimally invasive techniques, screw fixation also gained in significance. The current literature does not sufficiently elucidate whether the screw fixation is superior to other treatment options especially in relation to adverse events, health-related quality of life and postoperative pain. This study aims to investigate benefits and harms of treating displaced intra-articular calcaneus fractures (types II, III and IV according to Sanders) with screw fixation in adults. METHODS A systematic review will be conducted based on the principles described in the Cochrane Handbook. We will include adults with displaced intra-articular calcaneus fractures of Sanders type II, III and IV. The surgical method of screw fixation shall be compared to other surgical interventions to stabilise calcaneus fractures. Primary outcomes are serious adverse events, health-related quality of life and postoperative pain level. MEDLINE, CENTRAL, CINAHL, Web of Science and bibnet.org, ClinicalTrial.gov and the World Health Organization International Clinical Trials Registry Platform (ICTR) will be searched. Screening and data extraction will be performed by two authors independently. A third author will arbitrate disputes. Risk of Bias will be assessed with the Cochrane tool. Meta-analysis will be performed if participants, interventions, comparisons and outcomes are sufficiently similar to ensure a result that is clinically meaningful. DISCUSSION Due to the increasing use of minimally invasive techniques and the increasing use of screw fixation instead of open reduction and plate fixation, it is important to analyse the benefits and harms of screw fixation for calcaneus fractures. Screw fixation could, in the future, help to operate in a less invasive and tissue preserving manner while still achieving an adequate functional result for the patient SYSTEMATIC REVIEW REGISTRATION: CRD42021244695.
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Affiliation(s)
- Leah Wilmsen
- Department of Orthopaedics and Traumatology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Anne Neubert
- Department of Orthopaedics and Traumatology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany. .,TraumaEvidence @ German Society of Traumatology, Berlin, Germany.
| | - Joachim Windolf
- Department of Orthopaedics and Traumatology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Andrea Icks
- Institute for Health Services Research and Health Economics, Centre for Health and Society, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Bernd Richter
- Cochrane Metabolic and Endocrine Disorders Group, Institute of General Practice, Centre fpr Health and Society, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Simon Thelen
- Department of Orthopaedics and Traumatology, Medical Faculty and University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
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Reed LA, Mihas A, Andrews NA, Agarwal A, Wall KC, Spitler CA, Johnson MD. Complication Rates Are Similar Between Patients Aged <50 and >50 Years in Calcaneus Fractures Treated With the Sinus Tarsi Approach. FOOT & ANKLE ORTHOPAEDICS 2022; 7:24730114221115678. [PMID: 35959140 PMCID: PMC9358586 DOI: 10.1177/24730114221115678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: The sinus tarsi (ST) approach for calcaneus fractures has gained popularity in recent years with an increased interest in shifting to less invasive approaches for calcaneal fracture fixation allowing for adequate fixation if complications do not arise. Although the ST approach has gained acceptance as standard for calcaneus fracture fixation, the literature surrounding early complications rates based on age differences for this specific approach and pathology is lacking. The objective of this study was to determine if rates of complications based on age varied for patients undergoing open reduction and internal fixation (ORIF) of closed calcaneus fractures using the ST approach. Methods: A retrospective review of patients undergoing ORIF for closed calcaneus fractures from 2012 to 2020 was performed. Inclusion criteria were based on an age greater than 18 years, surgical management of a closed calcaneus fracture using a ST approach, requirement of a preoperative computed tomographic scan, and a minimum of 180 days’ follow-up. Patients were divided into 2 groups: those aged <50 years and those aged >50 years. Results: A total of 196 fractures were included with 114 fractures in the <50-year age group and 82 fractures in the >50-year age group. Mean age was 34.2 and 59.7 years in the younger and older groups, respectively. The older group had similar rates of wound dehiscence (1.2% vs 4.4%, P = .204), superficial surgical site infection (1.2% vs 2.6%, P = .490), deep infection (9.8% vs 7.9%, P = .648), and nonunion (4.9% vs 3.5%, P = .633) compared with the younger group. Rates of 30-day readmission, unplanned reoperation, and symptomatic hardware were not significantly different. Postoperative Bohler and Gissane angles were not significantly different between both groups. Conclusion: Older patients with intraarticular calcaneus fractures treated via the ST approach maintain complication rates similar to those in younger individuals. Level of Evidence: Level III, retrospective study.
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Affiliation(s)
- Logan A. Reed
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Alexander Mihas
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Nicholas A. Andrews
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Abhinav Agarwal
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Kevin C. Wall
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Clay A. Spitler
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michael D. Johnson
- Department of Orthopaedic Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
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Zhang H, Lv ML, Liu Y, Sun W, Niu W, Wong DWC, Ni M, Zhang M. Biomechanical analysis of minimally invasive crossing screw fixation for calcaneal fractures: Implications to early weight-bearing rehabilitation. Clin Biomech (Bristol, Avon) 2020; 80:105143. [PMID: 32829234 DOI: 10.1016/j.clinbiomech.2020.105143] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/13/2020] [Accepted: 08/10/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Minimally invasive fixation using crossing screws was believed to produce satisfactory clinical outcome whereas its stability in early weight-bearing remained controversial. This study aimed to analyze the biomechanical stability of minimally invasive fixation during balanced standing and walking stance, and provide evidence for early rehabilitation. METHODS A finite element model of foot-ankle-shank complex was reconstructed based on computed tomography and magnetic resonance images, and validated by plantar pressure of the model participant. A Sanders III calcaneal fracture was created on the model, and then fixed using crossing screws. The predicted stress distribution, fracture displacement, Bohler's angle and Gissane's angle were compared between the intact calcaneus and fracture model with the fixation. FINDINGS Postoperatively, the concentrated stress appeared at the junction of the calcaneus and its surrounding tissues (especially Achilles tendon, plantar fascia and ligaments) during standing and walking stances, and the stress exceeded the yield strength of trabecular bone. The longitudinal screws sustained the highest stresses and concentrated at the tips and the calcaneal tuberosity junction. The displacement of posterior joint facet, Bohler's angle, and Gissane's angle were within the acceptable range either standing or walking after the fixation. INTERPRETATION Early weight-bearing standing and walking after minimally invasive fixation may cause high stress concentration thereby induce calcaneus stress fractures and other complications like plantar fasciitis and heel pain, so it should not be supported. The peri-calcaneus tendons, i.e., Achilles tendon and plantar fascia, play key roles in the stabilization of the calcaneal fracture after operation.
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Affiliation(s)
- Haowei Zhang
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Miko Lin Lv
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yin Liu
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Wanju Sun
- Department of Orthopaedics, Pudong New Area Peoples' Hospital affiliated to Shanghai University of Medicine & Health Sciences, Shanghai 201299, China
| | - Wenxin Niu
- Department of Rehabilitation, Medical College of Tongji University, Shanghai 200092, China
| | - Duo Wai-Chi Wong
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, SAR 999077, China; The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Ming Ni
- Department of Orthopaedics, Pudong New Area Peoples' Hospital affiliated to Shanghai University of Medicine & Health Sciences, Shanghai 201299, China.
| | - Ming Zhang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, SAR 999077, China; The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
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Roukis TS. Closed Manipulation, Intraosseous Reduction, and Rigid Internal Fixation for Displaced Intra-Articular Calcaneal Fractures. Clin Podiatr Med Surg 2019; 36:197-210. [PMID: 30784531 DOI: 10.1016/j.cpm.2018.10.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Although open reduction and internal fixation for treating displaced intra-articular calcaneal fractures remain common, difficulty obtaining and maintaining both calcaneal morphology and subtalar articular surface reduction remain. In addition, open approaches induce a significant risk of wound-healing complications. For this reason, closed manipulation to restore calcaneal morphology, intra-osseous fracture reduction, and rigid locked nail fixation was developed and validated for clinical use. Conversion to an immediate primary or delayed reconstructive subtalar joint arthrodesis using the same instrumentation remains unique to this system. This article reviews the CALCANAIL surgical technique for performing operative fixation of displaced intra-articular calcaneal fractures.
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Affiliation(s)
- Thomas S Roukis
- Orthopaedic Center, Gundersen Health System, 1900 South Avenue, La Crosse, WI 54601, USA.
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Roukis TS. Joint-Sparing Surgical Management of Sanders IV Displaced Intra-Articular Calcaneal Fractures. Clin Podiatr Med Surg 2019; 36:251-268. [PMID: 30784535 DOI: 10.1016/j.cpm.2018.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Displaced intra-articular calcaneal fractures represent life-altering injuries. Difficulty obtaining and maintaining calcaneal morphology and the significant risk of wound healing complications with an extensile lateral incision exist. Open reduction with internal fixation as a joint-sparing approach has been studied. Closed manipulation to restore calcaneal morphology, intra-osseous fracture reduction, and rigid locked CALCANAIL fracture nail fixation have recently been applied to Sanders IV fracture patterns. Spontaneous conversion to primary subtalar joint arthrodesis using the same instrumentation remains unique to this system. This article reviews open and percutaneous approaches for joint-sparing and primary arthrodesis procedures to treat Sanders IV fracture patterns.
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Affiliation(s)
- Thomas S Roukis
- Orthopaedic Center, Gundersen Health System, 1900 South Avenue, La Crosse, WI 54601, USA.
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Humphrey JA, Woods A, Robinson AHN. The epidemiology and trends in the surgical management of calcaneal fractures in England between 2000 and 2017. Bone Joint J 2019; 101-B:140-146. [DOI: 10.1302/0301-620x.101b2.bjj-2018-0289.r3] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Aims This paper documents the epidemiology of adults (aged more than 18 years) with a calcaneal fracture who have been admitted to hospital in England since 2000. Secondary aims were to document whether publication of the United Kingdom Heel Fracture Trial (UK HeFT) influenced the proportion of patients admitted to hospital with a calcaneal fracture who underwent surgical treatment, and to determine whether there has been any recent change in the surgical technique used for these injuries. Patients and Methods In England, the Hospital Episode Statistics (HES) data are recorded annually. Between 2000/01 and 2016/17, the number of adults admitted to an English NHS hospital with a calcaneal fracture and whether they underwent surgical treatment was determined. Results During this 17-year period, 62 858 patients were admitted to hospital with a calcaneal fracture. The male-to-female ratio was 2.66:1. The mean annual incidence was 10.5/100 000 for men and 3.8/100 000 for women. The results of the UK HeFT were published in July 2014. The percentage of patients admitted with a calcaneal fracture undergoing internal fixation was 7.31% (3792/51 859) before and 7.38% (534/7229) after its publication. This difference was not statistically significant (p = 0.94). Since 2015, there has been a significant increase in the percentage of calcaneal fractures treated by closed reduction and internal fixation, as opposed to open reduction and internal fixation, from 7.7% (292/3792) to 13.29% (71/534) (p < 0.001). Conclusion This study documents the epidemiology and trends in surgical treatment of calcaneal fractures in England. We established that surgeons did not change their practice in terms of offering surgery to these patients in response to the results of the UK HeFT. There has been a significant (p < 0.001) increase in the number of calcaneal fractures being treated surgically using less invasive procedures.
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Affiliation(s)
- J. A. Humphrey
- Milton Keynes University Hospital NHS Foundation Trust, Milton Keynes, UK
| | - A. Woods
- Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, UK
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