Stress Shielding Effects of Short Stem Alignment and Bone Density in Reverse Shoulder Arthroplasty.

Short Tibial Extensions Are Associated With Reduced Tibial Component Loosening for Primary, Cemented Total Knee Arthroplasty: A Systematic Review and Meta-Analysis.

Hip resurfacing arthroplasty reduces dislocation and infection rates without differences in clinical outcomes compared to short and standard stems: A Network Meta-Analysis.

Quantifying the effect of tibial stem extension length for primary TKA in obese patients: A biomechanical study.

Use of Short Femoral Stems in Primary Total Hip Arthroplasty: A Mid-Term Safety Analysis: Prospective series of 5,876 cases at 4.4-year average follow-up.

Background:Heterotopic ossification (HO) is a common complication of total hip arthroplasty (THA), which can adversely affect patient satisfaction. Although the direct anterior approach (DAA) has been associated with lower rates of HO, the exact clinical impact of even low-grade ossification following DAA THA remains underreported. We aimed to assess the clinical impact of HO in DAA THA and identify demographics and implant-related risk factors.Methods:A retrospective single-center cohort study of 348 hips treated via DAA THA with a cementless short stem between January 2011 and December 2021 was performed. HO was graded at ≥12 months using the Brooker classification on standardized anteroposterior radiographs. The Harris Hip Score (HHS), the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and the Visual Analogue Scale (VAS) were assessed at a mean of 4.3 years of follow-up. Comparative analyses and multivariable logistic regression were performed to identify independent predictors of HO.Results:HO occurred in 18.1% of hips: Brooker grade I in 12.4%, II in 3.0%, and III in 3.0%; no grade IV lesions developed. At final follow-up, patients without HO had significantly better outcomes compared with those with HO (all p < 0.001). When stratified by severity, even low-grade HO (Brooker I-II) was associated with significantly worse WOMAC (p = 0.023) and HHS (p < 0.001) compared with the non-HO group. Although VAS pain was higher in the low-grade group, the difference did not reach statistical significance (p = 0.084). On multivariable analysis, independent implant-related risk factors included use of the Continuum acetabular cup (odds ratio [OR] 2.10; p = 0.014), each additional millimeter of cup diameter (OR 1.16; p = 0.003), and longer femoral neck length (OR 2.06; p = 0.006).Conclusions:HO was observed in nearly one-fifth of hips, and even low-grade ossification was associated with significantly worse mid-term functional outcomes. Cup design, size, and neck length were identified as significant, modifiable predictors of HO risk. Careful implant selection may help reduce the incidence of HO and enhance postoperative function.Level of Evidence:Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence.

&lt;p&gt;The demand for rice in Indonesia continues to increase but production has decreased. Efforts that can be made are the use of local varieties of mentik wangi rice. Mentik wangi rice has the disadvantages of long life, high stems, and low crop production. As a solution, plant breeding is carried out in the form of mutation by giving gamma irradiation which can improve unwanted genetic traits and produce superior varieties with the dose used of 200 gray. This study aims to evaluate the yield potential of promising mutant strains with 200 gray gamma irradiation on mentik wangi rice and get mutant strains that have superior criteria for short-stemmed, short-lived, and high-yielding. This research was conducted in the rice field of Ngampel Hamlet, Gentungan Village, Mojogedang, Karanganyar, Central Java. The research was conducted in June-October 2023. The design used was a Randomized Complete Group Design (RCBD) with a single factor, namely strains consisting of 14 mutant strains and 1 control strain with 3 repetitions. The results of observations were analyzed by &lt;em&gt;Analysis of Variance &lt;/em&gt;(ANOVA) at the 5% level and continued with &lt;em&gt;Duncan Multiple Range Test &lt;/em&gt;(DMRT) at the 5% level. All tested strains produced the expected superior criteria, namely short stem, short age, and high productivity.&lt;/p&gt;

Preclinical analysis of a novel short hip-stem design: A finite element model-based investigation.

Two-year functional and radiographic outcomes of an inlay, metaphyseal-based short humeral stem component in reverse shoulder arthroplasty

To increase the productivity and quality of winter rye grain, it is necessary to create new varieties that are adaptive to various environmental stress factors and meet the requirements of the north-eastern region of the European part of the Russian Federation. The purpose of the research is to create a variety of winter rye with high adaptive capacity, resistance to soil and climatic stresses, forming a consistently high yield. Breeding work on the creation of a new variety Batist was carried out in 2004–2020 at the Falensky Breeding Station. The study was conducted in comparison with the Falenskaya 4 standard on the soil backgrounds of sod-podzolic soil: an ordinary and a natural hard, provocative background in terms of acidity. Agrochemical parameters of the soil were as follows: the usual background of рН KCl was 5,0–5,2 units, mobile ion content of Al 3+ ions was 5,0–6,5 mg/100 g of the soil, and the natural background provocative in terms of alumina acid content of рН KCl was 3,7–3,9 units, while the mobile ion content of Al 3+ ions was 26,5–28,4 mg/100 g of the soil. The variety of winter rye Batist with a dominant type of short stem was created by the method of multiple biotypic selections from the varieties Era and Volkhova. On average for 2016–2020, in a competitive variety trial on a conventional soil background, the yield of the Batist variety was 5,35 t/ha (+0,75 t/ha to the standard), on a provocative soil acidity background, the average yield of the new variety was 3,46 t/ha (+0,80 t/ha to the standard). The Batist variety is characterized by high winter hardiness (4.7 points) and regenerative ability after snow mold damage (86%). According to baking indicators, it belongs to the 1st and 2nd quality classes, depending on the conditions of the year (falling-number – 168–225 s). A comparative assessment of the adaptive yield potential of the Batist variety was carried out, which showed a low response to stress factors, high stability of the variety in various environmental conditions. According to the results of the State Variety Trial (2021–2022) in 2023, the Batist variety was included in the State Register of Breeding Achievements of the Russian Federation, with admission to the Volga-Vyatka and Northern regions.

Impact of cement use and stem length on clinical outcomes in revision reverse shoulder arthroplasty: is a short stem with cementless fixation a viable option?

Influence of Coronal and Sagittal Femoral Stem Alignment on Mid-Term Functional Outcomes in Direct Anterior Approach Total Hip Arthroplasty Utilizing a Cementless, Trochanteric-Sparing Short Stem.

Short, uncemented hip stems might provide a favourable alternative in total hip arthroplasty (THA) by preserving proximal bone mass through reduced strain-adaptive remodelling. We evaluated and compared the migration and periprosthetic bone remodelling of a short stem with and without a collar, using radiostereometric analysis (RSA) to measure implant migration and dual-energy X-ray absorptiometry (DXA) to evaluate periprosthetic bone remodelling. In this study we present ten-year follow-up results, completing previously published two- and five-year RSA and DXA studies. A total of 50 patients (34 males) underwent THA due to osteoarthritis and were randomized to either a collared or collarless short stem. Patients were followed for ten years with repeated RSA and DXA examinations. Patient-reported outcome measures (PROMs), Hip disability and Osteoarthritis Outcome Score, EuroQol five-dimension questionnaire, and Forgotten Joint Score were collected. A total of 45 patients remained at the ten-year follow-up. RSA showed early implant stabilization and osseointegration within three months after an initial subsidence of 0.62 mm (95% CI 0.33 to 0.91) for collared and 0.76 mm (95% CI 0.55 to 0.96) for collarless stems. Minimal further migration was observed up to ten years. Net bone mineral density at ten years was -3.3% (95% CI -9.2 to 2.7) and -2% (95% CI -7.3 to 3.4) in collared and collarless stems, respectively. The presence of a collar did not result in any statistically significant differences either for RSA or DXA results. PROMs improved as expected, and remained high up to ten years in both groups. None of the stems was revised. The short stem remains stable at ten years and preserves bone mass, both with and without a collar. These findings support the continued use and further evaluation of this type of short, uncemented stem.

Does stem length affect proximal humeral stress shielding? A systematic review.

System pharmacology reveals the mechanism of action of Shengbai Oral Liquid alleviates chemotherapy-induced leukopenia by interfering the pro-platelet basic protein: Integrated network study of multi-omics.

Effects of different humeral stem lengths on stem alignment and proximal stress shielding in reverse total shoulder arthroplasty.

Broach Only Total Hip Arthroplasty Using a Short, Uncemented, and Collarless, Fit-and-Fill Stem: Average 5-Year Follow-Up.

Background: Total hip arthroplasty (THA) is a well-established surgical procedure for end-stage hip arthrosis. Innovations such as minimally invasive approaches and new technologies have improved outcomes and reduced invasiveness. The introduction of short-stem prostheses, which offer potential benefits in bone preservation, has been a significant development in recent years. This prospective case series study aims to compare invasiveness of the short-stem (SS) and conventional-stem (CS) prostheses in THA with a posterolateral approach (PLA) by assessing perioperative serum markers. Methods: A prospective case series was conducted involving consecutive patients who underwent primary THA from January 2022 to December 2023. Demographics and preoperative, postoperative day 1 (POD1), and postoperative day 2 (POD2) serum levels of C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), procalcitonin (PCT), and white blood cells (WBCs) were measured. Results: The study included 21 patients with CS and 19 with SS, with no significant differences between groups in demographic. No statistically significant differences were found in serum markers between SS and CS groups at any time point. Both groups showed significant increases in ESR, CRP, and PCT from preoperative levels to POD2 (p < 0.001), while WBC values increased from preoperative to POD1 but decreased between POD1 and POD2. Conclusion: The short-stem prosthesis does not exhibit significantly different perioperative serum marker profiles compared to the conventional stem, suggesting similar levels of surgical invasiveness between the two implants. Further studies with larger sample sizes are needed to validate these findings and explore other aspects of short-stem THA.

ABSTRACT The cultivation and inoculation of lithophytic moss crusts represent a potential pathway for the ecological restoration of rocky slopes. At present, the key factors influencing rapid cultivation are not well understood, and ecological restoration practices remain at the conceptual stage. In this study, based on the investigation of moss diversity in the northern foothills of the Qinling Mountains, we selected Brachythecium plumosum , a dominant moss species, for incubator experiments to explore the inoculation density (20 g·m −2 , 60 g·m −2 , 100 g·m −2 ), moss stem and leaf fragment length (1–3 mm, 3–6 mm, 6–9 mm), and substrate type (kaguma soil, peat soil, volcanic rock) on moss crust growth. Meanwhile, an outdoor artificially constructed rocky slope was utilized to examine the response of moss crust restoration on rocky slopes to inoculation methods (dry broadcasting, wet blending), substrate particle sizes (&lt; 1 mm, 1–2 mm, &gt; 2 mm), gauze additions, and exogenous microorganisms ( Bacillus megaterium , Chlorella vulgaris ). The results showed that (1) in an artificial incubator (constant environment), medium inoculum, short stem and leaf fragments, and volcanic rock substrate were more conducive to the rapid development of moss crusts. Moss coverage, plant height, and plant density reached 50.28%, 5.64 mm, and 52 stems·cm −2 , respectively, in the 60 g·m 2 + 1–3 mm gametophyte fragments + volcanic rock treatment; (2) Moss coverage, plant height, and plant density of dry broadcast inoculation were significantly higher than those of wet blend inoculation, but the addition of B. megaterium and C. vulgaris did not produce significant differences; the addition of gauze cushion and substrate (particle size &lt; 1 mm) contributed to rapid establishment and improved survival rates of moss crusts on rocky slopes. In summary, we identified the key factors for the rapid cultivation of lithophytic moss crust, preliminarily verified its feasibility as an ecological restoration measure for rocky slopes, and provided methodological references and new perspectives for the restoration of bare rock landscapes.

Infectious diseases are commonly cited as significant contributors to wildlife population declines. It is, therefore, important to investigate the extent to which tools designed to mitigate the effects of infectious diseases explain wildlife responses to habitat management. Ruffed grouse Bonasa umbellus populations have experienced long‐term declines throughout their eastern range. These declines are strongly correlated with the reduced availability of early successional forests and, in more recent decades, the mosquito‐borne pathogen, West Nile virus (Flaviviridae, Flavivirus; WNV). Efforts to increase the amount of early successional forests have intensified in Pennsylvania over the past twenty years, especially across northern hardwood and mixed oak timber stands. Additionally, a decision support tool for predicting WNV risk (the Grouse Priority Area Siting Tool, G‐PAST) was developed to help inform where ruffed grouse habitat creation would be most effective by minimizing contact between grouse and WNV‐carrying mosquitoes. Forest type is also known to influence ruffed grouse space use and demography. Thus, monitoring ruffed grouse response to habitat creation through the lens of predicted WNV risk and forest community type (northern hardwood versus mixed oak) may provide managers with further insight regarding strategies for ruffed grouse population recovery. From 2021 to 2023, we deployed autonomous recording units (paired with an autonomous classifier) in 305 regenerating timber harvests (7–16‐year‐old) across Pennsylvania. Survey locations were stratified by WNV risk level (low versus high) and forest type. Overall, ruffed grouse occupancy ( = 0.75) was most influenced by landscape connectivity (+), % mixed oak (−), and short woody stem density (−) but not G‐PAST predicted WNV risk. Thus, land managers aiming to conserve Pennsylvania's ruffed grouse should focus their attention on aspects of landscape connectivity and forest type when implementing grouse habitat management. Managers in Pennsylvania can expect, on average, high ruffed grouse occupancy (~ 75% of sites) in 7–16‐year‐old northern hardwood or mixed oak stands, regardless of WNV risk predicted by G‐PAST. Our results demonstrate that successful outcomes for forest management that target ruffed grouse will be driven by landscape characteristics, forest type, and within‐stand vegetation. Future work correlating longer‐term patterns (e.g. dynamic occupancy) or demographic rates with G‐PAST predictions may provide additional insight to help further guide grouse conservation efforts in Pennsylvania.