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Nevin Manimala Statistics

Given the encouraging results of biomechanical studies on femoral neck fractures, are locking plates more safe?

Acta Orthop Belg. 2024 Jun;90(2):279-285. doi: 10.52628/90.2.9907.

ABSTRACT

This current study compares the clinical and radiological outcomes of femoral neck fractures in young adults treated with either cannulated screws (CS) or proximal femoral locking plates (PFLP). We conducted a retrospective study in patients aged 18 to 60 years with femoral neck fractures and investigated medical records between January 2005 and December 2016. Patients were divided into two groups based on implants, screw and plate, used for fixation assigned. In addition, two groups were compared for their complications and functional outcomes, which were assessed with Harris Hip Score (HHS) and Parker Palmer mobility scores. Sixty-nine of 104 patients met the inclusion criteria. Forty patients were treated with cannulated screws, while 29 were treated with a proximal femoral locking plate. The two groups were comparable in terms of their perioperative variables. The overall complication rate (screw group, n = 10; plate group, n = 14) and non-union rate were significantly high in the plate group (p < 0.05). Other complications did not show statistically significant differences. The screw group had better functional outcomes than the plate group, where only the Parker-Palmer mobility score comparison was significant (p < 0.05). Poor reduction quality and Pauwels’ type III fractures were statistically associated with high complication rates regardless of the implants used (p < 0.05). Although PFLP showed better outcomes in biomechanical studies than CSs, we observed poorer clinical results. Therefore, although some of our results appeared to be statistically significant, reduction quality should also be considered.

PMID:39440504 | DOI:10.52628/90.2.9907

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Chronic regional pain syndrome following calcaneal fractures: what causes it and how may Vitamin C aid?

Acta Orthop Belg. 2024 Jun;90(2):271-277. doi: 10.52628/90.2.11928.

ABSTRACT

The purpose of the current study is to determine which variables influence the onset of chronic regional pain syndrome (CRPS) following Sanders type 1 calcaneal fractures, which are treated conservatively, and to discover how Vitamin C (VC) supplementation, which is often mentioned in the literature, affects the outcomes of these fractures. The study incorporated individuals who had a Sanders type 1 fracture that was both closed and non-displaced and were treated with conventional plaster. The current study retrospectively reviewed medical records to gather demographic data, duration of immobilization, smoking habits, administration of VC supplementation, and presence of diabetes mellitus (DM). The Budapest criteria were employed to make the clinical diagnosis of CRPS. The study cohort comprised 258 (75.9%) males and 82 (24.1%) females aged between 18 and 90 years who had sustained Sanders type 1 calcaneal fractures and were managed non-operatively. CRPS was detected in 42 (12.4%) of the 340 subjects. CRPS patients had a statistically higher immobilization duration than those without CRPS (p<0.05). Smoking and DM were more common among patients with CRPS (p<0.05) and CRPS patients had a much lower rate of VC consumption (4.8%) (p<0.05). The current study is the first to examine risk variables for CRPS after calcaneal fractures. Long periods of immobility, female gender, and lack of VC supplementation increase the risk of CRPS. CRPS also increases with diabetes and smoking.

PMID:39440503 | DOI:10.52628/90.2.11928

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Radiographic and complication evaluation of 2 different bioresorbable pins in hallux valgus corrective surgery

Acta Orthop Belg. 2024 Jun;90(2):261-269. doi: 10.52628/90.2.12271.

ABSTRACT

Osteotomies to correct hallux valgus are usually secured using metal implants. Their main disadvantage is the need for a repeat surgery for removal of implanted material. Bioresorbable implants would make it possible to overcome this complication. Few studies analyse the results of using bioresorbable pins. The primary objective of this study is to compare hallux valgus correction radiographic results with the use of two types of bioresorbable pins. The secondary objectives are to screen for possible complications related to the use of these bioresorbable pins. This is a descriptive, retrospective, single-centre study carried out between May 2018 and May 2022 in the orthopaedic surgery department of the Centre Chirurgical Emile Gallé at the CHRU in Nancy (France). The study involved 105 hallux valgus (98 patients) operated on by open double metatarsal and phalangeal osteotomy. Osteotomies were stabilised with resorbable polylactic acid (PLLA) pins (Arthrex® TRIM-IT® drill pin) in 57 cases (53 patients), and with resorbable polylactic acid-polyglycolic acid copolymer (PGLA) pins (Bioretec® ActivaPins®) in 48 cases (45 patients). The efficacy of hallux valgus correction was analysed in terms of changes in preoperative and postoperative radiographic parameters at 1 and 6 months on a weight-bearing foot. Descriptive statistics were used to describe the demographic and radiological parameters of each group. The mean age was 59.7 years (range 25-81 years) in the PLLA group and 56 years (range 23-78 years) in the PGLA group. The mean preoperative HVA was 30° (range 15-63°) in the PLLA group and 30.8° (range 15-57°) in the PGLA group. The mean preoperative IMA was 14.4° (range 7-30°) in the PLLA group and 13.8° (range 7-20°) in the PGLA group. There was a statistically significant correction of hallux valgus in the PLLA (p=5.24 X 10-15 ) and PGLA (p=3.56 X 10-13 ) groups. The mean correction for the hallux valgus angle was 13° in the PLLA group and 12° in the PGLA group. There was no statistically significant difference in hallux valgus correction between the PLLA and PGLA groups, particularly in terms of hallux valgus severity. There was no radiological or clinical complication in the groups related to bioresorbable pins. The use of bioresorbable pins allows effective stabilisation of osteotomies to correct hallux valgus. There was no significant difference in correction between PLLA and PGLA implants, regardless of the severity of the hallux valgus. We did not observe any obvious clinical or radiological complications related to their use. The use of bioresorbable osteosynthesis material in forefoot surgery seems to offer interesting advantages, providing patients with safer and less invasive treatment solutions.

PMID:39440502 | DOI:10.52628/90.2.12271

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Four-screw compression plate fixation for diaphyseal humerus fractures

Acta Orthop Belg. 2024 Jun;90(2):229-232. doi: 10.52628/90.2.12459.

ABSTRACT

While many humeral shaft fractures can be successfully treated with nonoperative management, compression plating techniques using at least three or four screws on either side of the fracture are the current gold standard. We hypothesized that a less rigid construct using compression with only two screws on either side of the fracture can provide adequate strength for uneventful fracture union. This is a retrospective review of all the patients who underwent open reduction and compression plate fixation for acute diaphyseal humerus fractures (ADHFs) at an academic Level-1 urban trauma center between 2018 and 2023. Patients treated with compression plating using only two screws and three or four plate-holes on either side of the fracture (Group 1) were matched one-to-one with patients treated using the conventional number of screws (three or more on either side of the fracture – Group 2). The incidence of nonunion/malunion, infection, and implant failure was compared among the two groups. There were eleven matched patients in both groups. The nonunion, infection complications, and hardware failure rates were 0% and 9.1% for the control group (Group 2) and four-screw group (Group 1) respectively. This difference was not statistically significant (p = 1.00). Although convention dictates the use of six or more bicortical screws (at least three bicortical screws on each side of the fracture), four-screw bicortical fixation may be a feasible option for ADHFs treated with large fragment compression plating techniques.

PMID:39440498 | DOI:10.52628/90.2.12459

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Improvement and prognosis of anxiety and depression after total knee arthroplasty

Acta Orthop Belg. 2024 Jun;90(2):211-216. doi: 10.52628/90.2.12480.

ABSTRACT

This study aims to analyze the improvement and prognosis of anxiety and depression in patients with knee osteoarthritis after total knee arthroplasty. A retrospective questionnaire survey was conducted on 180 patients with knee osteoarthritis who underwent total knee arthroplasty. The questionnaire consisted of a general information questionnaire, the Zung Self-Rating Anxiety Scale (SAS) for anxiety, the Zung Self-Rating Depression Scale (SDS) for depression, the Visual Analog Scale (VAS), the Pittsburgh sleep quality Index (PSQI), and the American Knee Society Scores (AKSS). The same questionnaires were administered preoperatively and at 3, 6 and 12 months postoperatively, and the results were statistically analyzed. The prevalence of anxiety in preoperative knee osteoarthritis patients was 29.2% and the prevalence of depression was 37.5%. At 3, 6, and 12 months after total knee arthroplasty, anxiety and depression, pain levels, sleep disturbances, and functional status of the knee were significantly improved in patients with knee osteoarthritis compared with the preoperative period (all P<0.05). Patients with knee osteoarthritis have significant anxiety and depression before surgery, and total knee arthroplasty can significantly improve their anxiety, depression and prognosis, and should be performed as early as possible in patients with knee osteoarthritis.

PMID:39440495 | DOI:10.52628/90.2.12480

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Impact of implant design on the Forgotten Joint Score: a retrospective study comparing two contemporary knee designs

Acta Orthop Belg. 2024 Jun;90(2):205-209. doi: 10.52628/90.2.9079.

ABSTRACT

This retrospective study was designed to assess two fixed bearing total knee design concepts and their clinical outcomes, particularly in Forgotten Joint Score-12 (FJS-12). Patients were assessed clinically using the Knee Society Score (KSS). Participants completed an FJS-12 and a short form of the Knee Injury and Osteoarthritis Outcome Score (KOOS-PS). A total of 216 knees -76 with Genesis II and 150 with Vanguard total knee arthroplasties – were included. Patients in the Vanguard group had significantly better postoperative FJS-12 scores (by 10.1 points, p = 0.019). Differences in KSS subscores also reached the level of statistical significance. KOOS-PS did not differ significantly. Statistically significant differences between the two knee designs on FJS-12, KS and FS assessments were revealed, but overall, these differences may not reach the threshold of clinical significance.

PMID:39440494 | DOI:10.52628/90.2.9079

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Medial patellofemoral ligament reconstruction with an extensor hallucis longus allograft: a retrospective study of 45 cases

Acta Orthop Belg. 2024 Jun;90(2):195-203. doi: 10.52628/90.2.9742.

ABSTRACT

Reconstruction of the Medial Patellofemoral Ligament (MPFL) has become the procedure of choice in patients with patellar instability. The type of graft used for reconstruction is controversial. The purpose of this study was to analyze and describe the clinical and radiological results achieved with a MPFL reconstruction performed using an extensor hallucis longus allograft. This work is a retrospective study of 41 patients (45 knees) who underwent MPFL reconstruction using an extensor hallucis longus allograft. The patellar apprehension test, Kujala scale, and EQ-5D European quality of life scale were evaluated preoperatively and postoperatively at 24 months. Complications, recurrence rate, time to return to sports, and satisfaction with the procedure were also assessed. Statistically significant differences were observed between pre- and postoperative variables on the Kujala scale (p < .001) and the EQ-5D (p < .001). The isolated MPFL presented an increase on the Kujala scale of 41.9 ± 13.4, in contrast to the reconstruction with tibial tubercle osteotomy with an increase of 29.4 ± 16.6 (p = 0.031). MPFL reconstruction with an extensor hallucis longus allograft is a suitable alternative in patients with patellofemoral instability because it offers clinically and radiologically satisfactory results. MPFL reconstruction combined with a tibial tubercle osteotomy can offer inferior functional outcomes to the isolated reconstruction.

PMID:39440493 | DOI:10.52628/90.2.9742

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Seroprevalence of SARS-CoV-2 antibodies among healthy blood donors: a systematic review and meta-analysis

BMC Public Health. 2024 Oct 22;24(1):2925. doi: 10.1186/s12889-024-20364-5.

ABSTRACT

INTRODUCTION: The development of a potent immune response and antibodies against SARS-CoV-2 is important for herd immunity. The serological response may be due to a previous infection or vaccination. Healthy blood donors could represent and provide information on the immune status of the general population. Therefore, we estimated the global and regional prevalence of SARS-CoV-2 antibodies among healthy blood donors.

METHODS: We conducted a systematic search of PubMed, Scopus, and ProQuest from December 2019 to January 2023. After critical appraisal and quality assessment, a qualitative synthesis of the identified relevant articles was performed. The random-effects model was used to estimate the pooled prevalence of SARS-CoV-2 antibodies. Funnel plots and Egger’s test were used to assess publication bias. Sensitivity analysis was performed, and heterogeneity was quantified using I2 statistics.

RESULTS: A total of 70 peer-reviewed articles were selected that together included 2,454,192 blood donors. The global estimated pooled prevalence of SARS-CoV-2 antibodies among healthy blood donors was 10.3% (95% CI: 4.6 – 18.0%, n = 70). The highest seroprevalence was observed in Asia (17.7%), followed by Africa (16.1%). The seroprevalence in studies conducted before the introduction of the vaccine was 6.1%, whereas those of studies conducted after vaccines were available was 27.6%. High seroprevalence was observed in studies that measured antibodies against the S protein of the virus (15.2%), while lower (12.5%) in those that measured antibodies against the N protein. A high seroprevalence was observed in studies that only measured IgG antibodies (16.3%), and it was 5.9% in studies that measured total antibodies.

CONCLUSION: The prevalence of SARS-CoV-2 antibodies among healthy blood donors varies, potentially indicating geographical disparities in transmission and vaccination rates. To enhance community resilience, addressing these differences through inclusive health policies and adaptable public health measures is crucial.

PMID:39438911 | DOI:10.1186/s12889-024-20364-5

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Efficacy of Prehabilitation in cancer patients: an Rcts systematic review with meta-analysis

BMC Cancer. 2024 Oct 22;24(1):1302. doi: 10.1186/s12885-024-13023-w.

ABSTRACT

BACKGROUND: Patients with cancer (PwC) who undergo specific treatments reported greater fatigue and reduced functional capacity as predominant outcomes, compromising their QoL during and following the treatment. Prehabilitation intervention, provided after diagnosis and before treatments, is to optimize the physiological reserve and address modifiable risk factors before surgery or chemotherapy to improve post-treatment results. The primary aim of this study is to obtain a common line of efficacy compared with prehabilitation treatment; the secondary endpoint is to assess the methodological quality of the studies eligible in the review.

METHODS: The systematic review was conducted from September to February 2024, in accordance with PRISMA guidelines. Databases consulted were MEDLINE, Scopus, Web of science and CINAHL, RCTs related to Prehabilitation intervention on PwC were included. The methodological quality of the included studies was assessed through the RoB2 Cochrane tool and the PEDro scale. Meta-analysis was performed to estimate relative treatment effects among evaluated outcomes.

RESULTS: Forty-two studies were included in the systematic review, 13 were included in the quantitative analysis. The results of the studies reporting reduced postoperative hospital stay, improved endurance, muscle strength, respiratory function, quality of life, and urinary incontinence. Critical analysis of the articles using the PEDro scale revealed 28 RCTs with a good rating, 9 with a fair rating, and 5 with a poor rating; in contrast, the Cochrane RoB2 tool revealed that all articles were at high risk of bias. Meta-analysis showed statistically significant values for 6MWT (38.53, 95%CI 33.03 – 44.04); HADS-depression (-0.71, 95%CI -0.93 -0.49) and HADS-anxiety (-0.49, 95%CI -0.76 -0.23).

CONCLUSIONS: Prehabilitation represents a specific intervention that aims to improve postoperative outcomes in fragile patients undergoing surgery, increasing their preoperative physiological reserve in anticipation of the stress they will face and facilitating the postoperative recovery of functional capacity. Prehabilitation is a good intervention to use, especially in terms of functional capacity and mental health, the latter being very impactful in terms of reduced levels of anxiety and depression. These data make it possible to justify supportive intervention by physical therapists aimed at improving and restoring health-related QoL especially in the short term.

PMID:39438910 | DOI:10.1186/s12885-024-13023-w

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Social inequalities in child mental health trajectories: a longitudinal study using birth cohort data 12 countries

BMC Public Health. 2024 Oct 22;24(1):2930. doi: 10.1186/s12889-024-20291-5.

ABSTRACT

BACKGROUND: Social inequalities in child mental health are an important public health concern. Whilst previous studies have examined inequalities at a single time point, very few have used repeated measures outcome data to describe how these inequalities emerge. Our aims were to describe social inequalities in child internalising and externalising problems across multiple countries and to explore how these inequalities change as children age.

METHODS: We used longitudinal data from eight birth cohorts containing participants from twelve countries (Australia, Belgium, Denmark, France, Germany, Greece, Italy, Netherlands, Poland, Norway, Spain and the United Kingdom). The number of included children in each cohort ranged from N = 584 (Greece) to N = 73,042 (Norway), with a total sample of N = 149,604. Child socio-economic circumstances (SEC) were measured using self-reported maternal education at birth. Child mental health outcomes were internalising and externalising problems measured using either the Strengths and Difficulties Questionnaire or the Child Behavior Checklist. The number of data collection waves in each cohort ranged from two to seven, with the mean child age ranging from two to eighteen years old. We modelled the slope index of inequality (SII) using sex-stratified multi-level models.

RESULTS: For almost all cohorts, at the earliest age of measurement children born into more deprived SECs had higher internalising and externalising scores than children born to less deprived SECs. For example, in Norway at age 2 years, boys born to mothers of lower education had an estimated 0.3 (95% CI 0.3, 0.4) standard deviation higher levels of internalising problems (SII) compared to children born to mothers with high education. The exceptions were for boys in Australia (age 2) and both sexes in Greece (age 6), where we observed minimal social inequalities. In UK, Denmark and Netherlands inequalities decreased as children aged, however for other countries (France, Norway, Australia and Crete) inequalities were heterogeneous depending on child sex and outcome. For all countries except France inequalities remained at the oldest point of measurement.

CONCLUSIONS: Social inequalities in internalising and externalising problems were evident across a range of EU countries, with inequalities emerging early and generally persisting throughout childhood.

PMID:39438908 | DOI:10.1186/s12889-024-20291-5