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Bone Reports Jun 2024High-resolution peripheral quantitative computed tomography (HR-pQCT) based micro-finite element (μFE) analysis allows accurate prediction of stiffness and ultimate...
High-resolution peripheral quantitative computed tomography (HR-pQCT) based micro-finite element (μFE) analysis allows accurate prediction of stiffness and ultimate load of standardised (∼1 cm) distal radius and tibia sections. An alternative homogenized finite element method (hFE) was recently validated to compute the ultimate load of larger (∼2 cm) distal radius sections that include Colles' fracture sites. Since the mechanical integrity of the weight-bearing distal tibia is gaining clinical interest, it has been shown that the same properties can be used to predict the strength of both distal segments of the radius and the tibia. Despite the capacity of hFE to predict structural properties of distal segments of the radius and the tibia, the limitations of such homogenization scheme remain unclear. Therefore, the objective of this study is to build a complete mechanical data set of the compressive behavior of distal segments of the tibia and to compare quantitatively the structural properties with the hFE predictions. As a further aim, it is intended to verify whether hFE is also able to capture the post-yield strain localisation or fracture zones in such a bone section, despite the absence of strain softening in the constitutive model. Twenty-five fresh-frozen distal parts of tibias of human donors were used in this study. Sections were cut corresponding to an in-house triple-stack protocol HR-pQCT scan, lapped, and scanned using micro computed tomography (μCT). The sections were tested in compression until failure, unloaded and scanned again in μCT. Volumetric bone mineral density (vBMD) and bone mineral content (BMC) were correlated to compression test results. hFE analysis was performed in order to compare computational predictions (stiffness, yield load and plastic deformation field pattern) with the compressive experiment. Namely, strain localization was assessed based on digital volume correlation (DVC) results and qualitatively compared to hFE predictions by comparing mid-slices patterns. Bone mineral content (BMC) showed a good correlation with stiffness (R = 0.92) and yield (R = 0.88). Structural parameters also showed good agreement between the experiment and hFE for both stiffness (R = 0.96, slope = 1.05 with 95 % CI [0.97, 1.14]) and yield (R = 0.95, slope = 1.04 [0.94, 1.13]). The qualitative comparison between hFE and DVC strain localization patterns allowed the classification of the samples into 3 categories: bad (15 sections), semi (8), and good agreement (2). The good correlations between BMC or hFE and experiment for structural parameters were similar to those obtained previously for the distal part of the radius. The failure zones determined by hFE corresponded to registration only in 8 % of the cases. We attribute these discrepancies to local elastic/plastic buckling effects that are not captured by the continuum-based FE approach exempt from strain softening. A way to improve strain localization hFE prediction would be to use longer distal segments with intact cortical shells, as done for the radius. To conclude, the used hFE scheme captures the elastic and yield response of the tibia sections reliably but not the subsequent failure process.
PubMed: 38590390
DOI: 10.1016/j.bonr.2024.101752 -
Journal of Clinical Medicine Feb 2024This study explores the impact of the complex regional pain syndrome (CRPS) on the lives and mobility of patients, with a particular focus on its emergence as a late...
This study explores the impact of the complex regional pain syndrome (CRPS) on the lives and mobility of patients, with a particular focus on its emergence as a late complication of distal radius fractures (DRFs), a common occurrence, especially among an aging population. The absence of a standardized treatment for the CRPS and the challenge of predicting its occurrence make it a complex medical issue. This research aims to shed light on the effects of treating the CRPS through a case study involving a 75-year-old woman with untreated osteoporosis who experienced a Colles fracture after a fall. The initial management involved repositioning and stabilizing the fractured forearm with a plaster cast, followed by an operation using percutaneous pinning via a Kirschner wire. Subsequently, the patient developed CRPS symptoms and was admitted to the rehabilitation department three months post-fracture. The affected forearm exhibited swelling, warmth, pain, and severely limited range of motion. Treatment involved a combination of medications, physiotherapy, and kinesiotherapy. Significantly, the patient experienced notable improvement following these interventions. This study underscores the absence of a definitive standard for CRPS treatment but suggests that proper rehabilitation and pharmaceutical interventions can contribute positively to patient outcomes. The case further highlights the potential association between DRF and CRPS development, emphasizing the need for continued research in this field.
PubMed: 38398434
DOI: 10.3390/jcm13041122 -
Experimental and Therapeutic Medicine Mar 2024With the rapid development of digital research in clinical orthopedics, the efficacy and safety of splint fixation can be better evaluated through biomechanical analysis...
With the rapid development of digital research in clinical orthopedics, the efficacy and safety of splint fixation can be better evaluated through biomechanical analysis based on a three-dimensional (3D) finite element model. It is essential to address the current gap in understanding the biomechanical implications of anatomical splint fixation for Colles fractures. By employing advanced 3D finite element analysis, the present study aimed to provide a comprehensive evaluation, offering valuable insights that can contribute to enhancing the effectiveness of anatomical splint fixation in the clinical management of Colles fractures. The 3D finite element models of the forearm and hand were constructed using Mimics 15.0 according to data from computed tomography of a patient with a Colles fracture. After the validity of the model was verified, the corresponding material properties of the models were adjusted to simulate a Colles fracture. Subsequently, the reduction functions, such as radial inclination and ulnar deviation, of the simulated fracture were completed and the mechanical changes of the tissues surrounding the fracture were calculated. Anatomical splints were then placed on the surfaces of the 3D finite element models of Colles fractures at various positions to analyze the changes in the stress cloud diagram, such as for the soft tissue and anatomical splints. In the present study, the constructed 3D finite element models were accurate and valid. The maximum stress of the anatomical splints and soft tissues was 2.346 and 0.106 MPa in pronation, 1.780 and 0.069 MPa in median rotation and 3.045 and 0.057 MPa in supination, respectively. Splint stress reached the highest level in supination and soft tissue stress achieved the highest level in pronation. The peak of splint stress occurred during supination, which contrasts to the peak of soft tissue stress observed in pronation, suggesting splint fixation median rotation can effectively avoid compression of the local soft tissue.
PubMed: 38356671
DOI: 10.3892/etm.2024.12386 -
Costoclavicular Brachial Plexus Block Facilitates Painless Upper Extremity Reduction: A Case Report.Clinical Practice and Cases in... Nov 2023The costoclavicular brachial plexus block (CCBPB) has emerged as a more effective approach to regional anesthesia of the upper extremity. The costoclavicular space is...
INTRODUCTION
The costoclavicular brachial plexus block (CCBPB) has emerged as a more effective approach to regional anesthesia of the upper extremity. The costoclavicular space is the anterior portion of the superior thoracic aperture, located between the clavicle and first rib. The brachial plexus cords traverse this space clustered together in a superficial location lateral to the axillary artery and share a consistent topographical relationship to one another. By targeting the brachial plexus at this specific anatomical location, the CCBPB offers a powerful, single-shot, sensorimotor block of the upper extremity below the shoulder. We present a novel application of the CCBPB to facilitate emergency department (ED) analgesia and closed reduction of an upper extremity fracture.
CASE REPORT
A 25-year-old male presented to the ED with a traumatic Colles fracture sustained during a high-speed motor vehicle collision. Despite multimodal analgesia, the patient reported intractable severe pain with intolerance of radial manipulation. An ultrasound-guided CCBPB was performed to augment pain control and avoid procedural sedation, resulting in dense, surgical anesthesia of the upper extremity, and painless fracture reduction.
CONCLUSION
Regional anesthesia is an effective component of multimodal pain management and another tool in the emergency physician's analgesic armamentarium. In acute orthopedic traumas necessitating emergent reduction, regional blocks serve as rescue pain control and can obviate the need for procedural sedation. In terms of targeted upper extremity analgesia, the CCBPB offers effective, single-shot, sensorimotor blockade below the shoulder, mitigating use of opioids and their deleterious side effects, while simultaneously avoiding incomplete blockade or phrenic nerve palsy associated with other approaches to brachial plexus blockade.
PubMed: 38353188
DOI: 10.5811/cpcem.59091 -
BMC Musculoskeletal Disorders Jan 2024The shortcomings of plaster in water resistance, air permeability, skin comfort, fixed stability and weight of wearing are still to be solved. 3D printed cast can... (Randomized Controlled Trial)
Randomized Controlled Trial
BACKGROUND
The shortcomings of plaster in water resistance, air permeability, skin comfort, fixed stability and weight of wearing are still to be solved. 3D printed cast can overcome the above shortcomings. At present, there is a relative lack of data on the clinical application of 3D printed cast, probably due to its complexity, relatively long operating time, and high price. We aimed to compare and evaluate the short-term effectiveness, safety and advantages of 3D printed wrist cast versus polymer orthosis in the treatment of Colles fracture.
METHODS
Forty patients with Colles fracture in our hospital from June to December 2022 were selected and divided into an observation group (20 patients, treated with instant 3D printed cast) and a control group (20 cases, treated with polymer orthosis). Both groups treated with manual reduction and external fixation. The visual analogue scale (VAS), immobilization effectiveness and satisfaction scores, Disability of the Arm, Shoulder and Hand (DASH) score, complications and imaging data were collected and compared before immobilization and at 2, 6 and 12 weeks after the fracture.
RESULTS
VAS at 2 weeks after the fracture was significantly lower in the observation group than in the control group ( P < 0.05). The immobilization effectiveness and satisfaction scores at 6 weeks after the fracture were significantly higher in the observation group than in the control group (all P < 0.05). The DASH scores at 2 and 6 weeks after the fracture were significantly lower in the observation group than in the control group (all P < 0.05). There wasn't rupture of the printed cast or orthosis in both groups. There were 2 cases of skin irritation in the control group, and no skin irritation occurred in the observation group. The palmar tilt angle and ulnar inclination angle at 2 weeks and 12 weeks after the fracture were significantly higher in the observation group than in the control group (all P < 0.05).
CONCLUSIONS
Both instant 3D printed cast and polymer orthosis are effective in the treatment of Colles fracture. But instant 3D printed cast is better than polymer orthosis in areas of good clinical and imaging performance, and high patient satisfaction and comfort.
Topics: Humans; Colles' Fracture; Orthotic Devices; Braces; Fracture Fixation; Printing, Three-Dimensional; Treatment Outcome; Radius Fractures; Casts, Surgical
PubMed: 38297262
DOI: 10.1186/s12891-024-07212-8 -
BMC Musculoskeletal Disorders Sep 2023Distal radius fractures are common fractures in older adults and associated with increased risk of future functional decline and hip fracture. Whether lower limb muscle... (Observational Study)
Observational Study
BACKGROUND
Distal radius fractures are common fractures in older adults and associated with increased risk of future functional decline and hip fracture. Whether lower limb muscle strength and balance are impaired in this patient population is uncertain. To help inform rehabilitation requirements, this systematic review aimed to compare lower limb muscle strength and balance between older adults with a distal radius fracture with matched controls, and to synthesise lower limb muscle strength and balance outcomes in older adults with a distal radius fracture.
METHODS
We searched Embase, MEDLINE, and CINAHL (1990 to 25 May 2022) for randomised and non-randomised controlled clinical trials and observational studies that measured lower limb muscle strength and/or balance using instrumented measurements or validated tests, in adults aged ≥ 50 years enrolled within one year after distal radius fracture. We appraised included observational studies using a modified Newcastle-Ottawa Scale and included randomised controlled trials using the Cochrane risk-of-bias tool. Due to the clinical and methodological heterogeneity in included studies, we synthesised results narratively in tables and text.
RESULTS
Nineteen studies (10 case-control studies, five case series, and four randomised controlled trials) of variable methodological quality and including 1835 participants (96% women, mean age 55-73 years, median sample size 82) were included. Twelve included studies (63%) assessed strength using 10 different methods with knee extension strength most commonly assessed (6/12 (50%) studies). Five included case-control studies (50%) assessed lower limb strength. Cases demonstrated impaired strength during functional tests (two studies), but knee extension strength assessment findings were conflicting (three studies). Eighteen included studies (95%) assessed balance using 14 different methods. Single leg balance was most commonly assessed (6/18 (33%) studies). All case-control studies assessed balance with inconsistent findings.
CONCLUSION
Compared to controls, there is some evidence that older adults with a distal radius fracture have impaired lower limb muscle strength and balance. A cautious interpretation is required due to inconsistent findings across studies and/or outcome measures. Heterogeneity in control participants' characteristics, study design, study quality, and assessment methods limited synthesis of results. Robust case-control and/or prospective observational studies are needed.
REGISTRATION
International prospective register of systematic reviews (date of registration: 02 July 2020, registration identifier: CRD42020196274).
Topics: Humans; Female; Aged; Middle Aged; Male; Wrist Fractures; Systematic Reviews as Topic; Lower Extremity; Hip Fractures; Muscle Strength
PubMed: 37723447
DOI: 10.1186/s12891-023-06711-4 -
Orthopaedic Surgery Oct 2023Open reduction and internal fixation (ORIF) is the standard treatment of unstable Colles fracture among the elderly. Modified percutaneous K-wire fixation is becoming...
OBJECTIVE
Open reduction and internal fixation (ORIF) is the standard treatment of unstable Colles fracture among the elderly. Modified percutaneous K-wire fixation is becoming increasingly popular in recent years. However, there is controversy concerning its appropriate use. This study aimed to compare the early safety and efficacy of the two different treatments and provide an alternative method for the treatment of unstable Colles fracture among the older population.
METHODS
Electronic medical records of 60 consecutive unstable Colles fractures patients who underwent surgery from June 2019 to October 2021, by modified percutaneous K-wire fixation (30 patients) or ORIF (30 patients), were reviewed retrospectively. All cases were followed up for 3 months. The outcomes of patients were assessed with operation time, intraoperative blood loss, visual analog score (VAS) for wrist joint pain, palmar tilt (PT), radial inclination (RI), radial height (RH), Gartland-Werley score, total hospitalization costs, hospital stays, postoperative complications, and patient subjective satisfaction. General patient information was also collected. Independent Student's t-test or Mann-Whitney U test were used to compare continuous data. Pearson's chi-square test or Fisher's exact test were used to analyze the categorical data.
RESULTS
The operation time and intraoperative blood loss were significantly shorter in the K-wire group than in the ORIF group (p < 0.05). Compared with the ORIF group, the VAS of the K-wire group was significantly lower at 1 and 3 days postoperatively (p < 0.05), and no significant differences were observed in VAS between the two groups preoperatively and 7 days postoperatively (p > 0.05). There were no significant differences in the PT, RI, and RH between the two groups preoperatively and at 1, 4, and 8 weeks postoperatively (p > 0.05). Patients in the K-wire group had significantly shorter hospital stays and lower total hospital costs (p < 0.05). All patients were followed up for 3 months, and there was no significant difference in the Gartland-Werley score between the two groups (p > 0.05). Compared with the ORIF group, postoperative complications were lower, and patient subjective satisfaction was higher in the K-wire group, but there were no significant differences (p > 0.05).
CONCLUSIONS
Modified percutaneous K-wire fixation in the treatment of unstable Colles fracture among the elderly is a safe, effective, rapid, and minimally invasive surgical option for surgeons.
Topics: Humans; Aged; Colles' Fracture; Blood Loss, Surgical; Retrospective Studies; Bone Wires; Fracture Fixation, Internal; Postoperative Complications; Treatment Outcome
PubMed: 37620967
DOI: 10.1111/os.13847 -
Journal of Emergencies, Trauma, and... 2023This systematic review aims to determine the relative risk of distal radius (Colles) fracture (DRF) malalignment between ultrasound (USG)-guided and...
INTRODUCTION
This systematic review aims to determine the relative risk of distal radius (Colles) fracture (DRF) malalignment between ultrasound (USG)-guided and conventional/landmark guided/blind manipulation and reduction (M&R).
METHODS
We searched 3932 records from major electronic bibliographic databases on USG-guided manipulation of DRF. Studies with randomized, quasi-randomized, and cross-sectional study designs meeting the inclusion criteria were included in this review. USG and landmark-guided DRF manipulations were named cases and controls, respectively. The Newcastle-Ottawa Scale was used to assess the quality of included studies.
RESULTS
Thirteen and nine studies were analysed for qualitative and quantitative analysis in this review. Nine hundred fifty-one DRF patients (475 cases and 476 controls) from 9 studies with mean ages of 51.52 ± 11.86 (22-92) and 55.82 ± 11.28 (18-98) years for cases and controls were pooled for this review. The pooled relative risk estimate from the studies included in the meta-analysis was 0.90 (0.74-1.09). There was a 10% decrease in the risk of malalignment with USG than the landmark guided M&R of DRF. The statistic estimated a heterogeneity of 83%. Sensitivity analysis revealed a relative risk of 1.00 (0.96-1.05).
CONCLUSION
The USG-guided manipulation does not prevent malalignment over the landmark-based manipulation of DRF. The risk of bias across the included studies and heterogeneity of 83% mandates further unbiased, high-quality studies to verify the findings of this review.
PubMed: 37583377
DOI: 10.4103/jets.jets_157_22 -
Journal of Ayurveda and Integrative... 2023Colles fracture is the commonest fracture encountered in orthopedic practice that demands prompt therapeutic intervention, and adequate follow-up to ensure complete...
Colles fracture is the commonest fracture encountered in orthopedic practice that demands prompt therapeutic intervention, and adequate follow-up to ensure complete healing. Various types of fractures, methods of reduction, and healing have been explained in the classical Ayurveda texts. These techniques are scientific and time-tested. This paper aims to report the successful management of Colles fracture case using Ayurveda and modern techniques with the use of Murivenna (an oil-based herbal formulation mentioned in the contemporary texts of Ayurveda), half-cast POP, and aluminum splinted bandage along with the internal medicine AbhaGuggulu. A 75-year-old moderately built woman diagnosed with Colles fracture was treated with a closed manipulative reduction technique followed by a below-elbow half-cast POP and an aluminum splint. Murivenna was poured anteriorly to the fractured site and Abha Guggulu was administered internally. Re-bandaging was done on the 7th day and 21st day. The bandage was removed on the 35th day. The patient's condition improved considerably with a good range of wrist movements and then she was advised to commence rehabilitation. This integrative method, adhering to Ayurvedic principles and modern techniques is unique, patient-friendly, and without adverse events.
PubMed: 37531707
DOI: 10.1016/j.jaim.2023.100786