BERNAL BADER, NAZIRA LUCIA

Preferred name
BERNAL BADER, NAZIRA LUCIA
Main Affiliation
Email
nbernal@udd.cl
ORCID
0000-0003-1970-3729
Scopus Author ID
57205309418

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    Scopus© Citations 30  5
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    Scopus© Citations 5  1
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    Four-Corner Arthrodesis: Comparative Analysis of Open Technique Versus Percutaneous Technique with Arthroscopic Assistance
    (2021)
    Camila Azócar
    ;
    Juan J. Lecaros
    ;
    BERNAL BADER, NAZIRA LUCIA  
    ;
    Miguel Sanhueza
    ;
    Rodrigo Liendo
    <jats:title>Abstract</jats:title><jats:p> Introduction Four-corner arthrodesis is a salvage technique for patients with carpal advanced osteoarthritis. Nowadays, percutaneous techniques with arthroscopic assistance have been described, achieving favorable results with minimally invasive techniques advantages over open surgery.</jats:p><jats:p> Objective To compare functional and radiological results in patients with SLAC or SNAC wrists operated with open surgical technique versus percutaneous surgery with arthroscopic assistance.</jats:p><jats:p> Materials and Methods Retrospective case-control study of clinical records and radiological images of patients with carpal advanced osteoarthritis operated with both surgical techniques. We studied demographic variables, pain with visual analog scale (VAS) score, function in ranges of mobility, time of consolidation, and correction of DISI deformity.</jats:p><jats:p> Results A total of 22 male patients with an average age of 32.5 years were studied. Thirteen patients in the case group (percutaneous technique with arthroscopic assistance) and nine patients in the control group (open surgery). Pain score in VAS at discharge was 3 for cases and 5 in controls (p = 0.008), and at 30 days postoperatively, it was 0 and 3 respectively (p = 0.00). The extension and flexion ranges were 52.6°and 38.7° in the cases and 35.7° and 32.4° in the control group (p = 0.119 and 0.0016, respectively). The capitolunate angle was 10°in the controls and 5°in the cases (p = 0.0008). The time of consolidation was 8.8 weeks in cases and 12.5 weeks in controls (p = 0.039).</jats:p><jats:p> Conclusions The percutaneous technique with arthroscopic assistance for the 4-courner arthrodesis is a reproducible technique and is effective in achieving consolidation, pain reduction and preservation of wrist motion. In the present study, we demonstrate superiority of this technique over the open surgery.</jats:p><jats:p> Level of Evidence This is a Level III, therapeutic study.</jats:p>
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    Could Subtle Obstetrical Brachial Plexus Palsy Be Related to Unilateral B Glenoid Osteoarthritis?
    (2021)
    Alexandre Lädermann
    ;
    Hugo Bothorel
    ;
    Philippe Collin
    ;
    Bassem Elhassan
    ;
    Luc Favard
    <jats:p>Background: Several factors associated with B glenoid are also linked with obstetrical brachial plexus palsy (OBPP). The purpose of this observational study was to determine the incidence of OBPP risk factors in type B patients. Methods: A cohort of 154 patients (68% men, 187 shoulders) aged 63 ± 17 years with type B glenoids completed a questionnaire comprising history of perinatal characteristics related to OBPP. A literature review was performed following the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) to estimate the incidence of OBPP risk factors in the general population. Results: Twenty-seven patients (18%) reported one or more perinatal OBPP risk factors, including shoulder dystocia (n = 4, 2.6%), macrosomia &gt;4 kg (n = 5, 3.2%), breech delivery (n = 6, 3.9%), fetal distress (n = 8, 5.2%), maternal diabetes (n = 2, 1.3%), clavicular fracture (n = 2, 1.3%), and forceps delivery (n = 4, 2.6%). The comparison with the recent literature suggested that most perinatal OBPP risk factors were within the normal range, although the incidence of shoulder dystocia, forceps and vaginal breech deliveries exceeded the average rates. Conclusion: Perinatal factors related to OBPP did not occur in a higher frequency in patients with Walch type B OA compared to the general population, although some of them were in the high normal range.</jats:p>
    Scopus© Citations 3  20
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      13Scopus© Citations 4
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    The Presence of Associated Injuries in Pediatric Radial Neck Fractures: A Systematic Review of the Literature and Meta-Analysis of Pooled Individual Patient Data
    (MDPI AG, 2025-02-27)
    Lisette C. Langenberg
    ;
    Joyce L. Benner
    ;
    Nazira Bernal Bader  
    ;
    Christiaan J. A. van Bergen
    ;
    Joost W. Colaris
    <jats:p>Background: Pediatric radial neck fractures (pRNFs) can occur in isolation or in association with concomitant injuries. It is unknown whether the presence of associated injuries should influence the choice of treatment. The aim of this study is to assess the incidence of associated injuries in pRNF and their correlation with fracture angulation (Judet grade) or the patient’s age (under or over ten years of age). Methods: A systematic literature review was performed following PRISMA-IPD guidelines, including case series on pRNF with a minimum of five cases of children until 16 years of age. The quality assessment included a risk of bias analysis and evaluation using the MINORS criteria. Individual patient data on age, Judet classification and associated injuries were extracted from the included studies and pooled for the meta-analysis. The correlation between the presence of associated injury and the patient’s age or Judet classification was depicted in two forest plots. Results: A total of 20 articles published sufficient individual patient data (n = 371) on associated injuries. All but one were retrospective case series. Fifteen articles had MINORS scores of 8 or higher. The incidence of associated injuries was 33% (123 of 371 cases). Almost half of the associated injuries included an olecranon fracture (61/123). There was no correlation between Judet classification (p = 0.243) and incidence nor between patient age and the incidence of associated injuries (p = 0.694). Conclusions: Surgeons should be aware of potential associated injuries in over a third of pRNF cases, regardless of the patient’s age or fracture angulation. Deduction of the trauma mechanism may be a more useful tool for assessing the potential presence of associated injuries than the most frequently used fracture classification or the patient’s age. More research is needed regarding the requirements for enhanced diagnostic imaging, specific treatment or follow-up adaptations in children with pRNFs and associated injuries.</jats:p>
      4Scopus© Citations 1