Risk factors and predictors of contralateral hip fracture after surgical treatment in elderly patients.

Background: Hip fractures are common in elderly patients, with some experiencing contralateral fractures. Even so, information on predictors of hip fractures in elderly adults is lacking. In this study, we investigated risk factors for contralateral hip fractures after surgical treatment of primary fractures.

Conical Chitosan Conduits Combined With Methylcobalamin for Sciatic Nerve Transposition Repair.

Background: The repair technology of peripheral nerve injuries has made great progress, but the simultaneous repair and promotion of nerve regeneration in multiple distal nerves remains a challenging task. The current cylindrical nerve conduits are unsuitable for nerve transposition repair. This study aims to assess the effect of conical chitosan conduits (different inner diameters at both ends) on nerve transposition repair, in conjunction with methylcobalamin (MeCbl).

Reprogramming mitochondrial metabolism to enhance macrophages polarization by ROS-responsive nanoparticles for osteoarthritis.

Osteoarthritis (OA) is a chronic low-grade inflammatory joint disease closely related to the inflammatory pathological microenvironment caused by synovial M1 macrophages. In contrast to the proinflammatory role of M1 macrophages, M2 macrophages contribute to anti-inflammatory responses and tissue repair. Therefore, shifting the M2/M1 phenotype ratio in favor of M2 macrophages has become a promising therapeutic strategy for OA.

A novel and alternative treatment method for moderate diabetic foot ulcer: tibial periosteal distraction.

Objective: Researchers have proposed a novel surgical treatment for moderate diabetic foot ulcer: tibial periosteal distraction (TPD) which could improve affected limb microcirculation. We aimed to describe the method and therapeutic effects of this technique.

Methods: We provided a technical guide to perform TPD surgery for the treatment of moderate diabetic foot ulcer of who had been treated in our department.

Enhanced diagnostic capabilities of thromboelastography coupled with standard coagulation indices for predicting perioperative thrombosis in older individuals with hip fractures : TEG coupled with standard coagulation indices for predicting thrombosis in hip fractures.

Background: Deep venous thrombosis of the lower extremity is a common and fatal complication of hip fracture in the elderly. However, there is a lack of targeted laboratory diagnostic methods. Although traditional laboratory indicators can provide some reference, the diagnostic efficiency is relatively limited This study aimed to investigate the diagnostic accuracies of thromboelastography (TEG) combined with traditional coagulation parameters for early diagnosis of newly occurring lower extremity deep vein thrombosis (DVT) in elderly patients with hip fractures.

Chiral Hydrogel Nerve Conduit Boosts Peripheral Nerve Regeneration via Regulation of Schwann Cell Reprogramming.

The Schwann cell (SC) is essential in peripheral nerve regeneration by reprogramming into a stem-like "repair Schwann cell" (rSC) phenotype; however, maintaining the rSC stemness remains an unmet challenge. Chirality is a fundamental factor controlling cell fate, and its potential role in regulation of SC reprogramming has long been ignored and remains poorly understood. Herein, inspired by natural chiral components in the SC microenvironment, chiral hydrogel nerve conduits are prepared by supramolecular assembly of l/d-phenylalanine derivatives (l/d-Phe) in polymeric chitosan-gelatin conduits.

FK506 contributes to peripheral nerve regeneration by inhibiting neuroinflammatory responses and promoting neuron survival.

JOURNAL/nrgr/04.03/01300535-202507000-00031/figure1/v/2024-09-09T124005Z/r/image-tiff FK506 (Tacrolimus) is a systemic immunosuppressant approved by the U.S.

The Exploratory Study of the PTEN-AKT/mTOR Signaling Pathway in the Corresponding Dorsal Root Ganglion during Compensatory Repair via Small Gap Amplification in Sciatic Nerve Injury.

Background: Peripheral nerve injury is a challenging orthopedic issue in clinical management that often leads to limb dysfunction or even disability in severe cases. A thorough exploration of the repair process of peripheral nerve injury and the underlying mechanism contributes to formulate more effective therapeutic strategies.

Methods: In the present study, we established a sciatic nerve transection injury model in Sprague-Dawley (SD) rats.

Neutrophil peptide 1 accelerates the clearance of degenerative axons during Wallerian degeneration by activating macrophages after peripheral nerve crush injury.

JOURNAL/nrgr/04.03/01300535-202408000-00036/figure1/v/2023-12-16T180322Z/r/image-tiff Macrophages play an important role in peripheral nerve regeneration, but the specific mechanism of regeneration is still unclear. Our preliminary findings indicated that neutrophil peptide 1 is an innate immune peptide closely involved in peripheral nerve regeneration.

Reprogramming Macrophage Polarization, Depleting ROS by Astaxanthin and Thioketal-Containing Polymers Delivering Rapamycin for Osteoarthritis Treatment.

Osteoarthritis (OA) is a chronic joint disease characterized by synovitis and joint cartilage destruction. The severity of OA is highly associated with the imbalance between M1 and M2 synovial macrophages. In this study, a novel strategy is designed to modulate macrophage polarization by reducing intracellular reactive oxygen species (ROS) levels and regulating mitochondrial function.

Analysis of Risk Factors for in-hospital Death in Elderly Patients with TEXAS Stage 3 and 4 Diabetic Foot Ulcers after Tibial Transverse Translation: A Case-Control Study.

Objective: Chinese physicians developed the Tibial Transverse Transport (TTT) technique to treat diabetic foot ulcers with more than 90% effective rate. But this method still could not avoid the in-hospital death of patients. This study adopted a case-control study to explore the risk factors of in-hospital death in elderly patients with chronic ischemic diabetic foot after receiving TTT treatment.

A Better Treatment for Moderate to Severe Hallux Valgus: Scarf + Akin Osteotomy Combined with Lateral Soft Tissue Release in a Single Medial Incision.

Objective: Traditional lateral soft tissue release (LSTR) was conducted by an additional dorsal first web incision, as the malformed thick scar and neuritis were common after surgery. A new method of lateral soft tissue release in a single medial incision via dorsal flap over the first metatarsal (LSTR-SMI-DFFM) should be recommended. The objective is to investigate the clinical effectiveness and safety of scarf + Akin osteotomy (SAO) combined with lateral soft tissue release in a single medial incision via dorsal flap over the first metatarsal (LSTR-SMI-DFFM) for moderate to severe hallux valgus.

Analysis of the Effect of Antibiotic Bone Cement in the Treatment of Diabetic Foot Ulcer through Tibia Transverse Transport.

Objective: To explore the efficacy of antibiotic bone cement (ABC) combined with the modified tibial transverse transport (mTTT) on the treatment of severe diabetic foot with infection.

Methods: A retrospective cohort study was conducted of 243 patients with TEXAS grade 3/4 stage D diabetic foot ulcers from December 2016 to December 2019. A total of 115 patients treated with mTTT were classified as the mTTT group (78 male and 37 female, mean age: 70.

Fusion of expert uncertain assessment in FMEA based on the negation of basic probability assignment and evidence distance.

Failure mode and effects analysis (FMEA) has been widely used for potential risk modeling and management. Expert evaluation is used to model the risk priority number to determine the risk level of different failure modes. Dempster-Shafer (D-S) evidence theory is an effective method for uncertain information modeling and has been adopted to address the uncertainty in FMEA.

Rotation scarf + Akin osteotomy for severe hallux valgus with a new evaluation index: distance between the first and second metatarsals.

Background: Although rotation scarf + Akin osteotomy has been described for correcting hallux valgus deformity, the treatment efficacy of rotation scarf + Akin osteotomy for severe hallux valgus should be further studied. The purpose of our study was to evaluate the outcomes of rotation scarf + Akin osteotomy on severe hallux valgus.

Methods: We conducted a retrospective study of patients with hallux valgus who underwent surgery using rotation scarf + Akin osteotomy in our hospital between June 2014 and January 2020.

A new finite element model of intra-articular impacted fragment in posterior malleolar fractures: A technical note.

Intra-articular impacted fragment (IAIF) was considered as the articular surface fragment resulting from impact and compressive forces. Malreduction of IAIF in posterior malleolar fractures was associated with the cause of talus subluxation and long-term arthritis. The effect of IAIF on ankle pressure and stress has not been studied, and it's difficult to do this in cadaver bone.

Combining CUBIC Optical Clearing and Thy1-YFP-16 Mice to Observe Morphological Axon Changes During Wallerian Degeneration.

Objective: Wallerian degeneration is a pathological process closely related to peripheral nerve regeneration following injury, and includes the disintegration and phagocytosis of peripheral nervous system cells. Traditionally, morphological changes are observed by performing immunofluorescence staining after sectioning, which results in the loss of some histological information. The purpose of this study was to explore a new, nondestructive, and systematic method for observing axonal histological changes during Wallerian degeneration.

Brain functional remodeling caused by sciatic nerve transposition repair in rats identified by multiple-model resting-state blood oxygenation level-dependent functional magnetic resonance imaging analysis.

Lower extremity nerve transposition repair has become an important treatment strategy for peripheral nerve injury; however, brain changes caused by this surgical procedure remain unclear. In this study, the distal stump of the right sciatic nerve in a rat model of sciatic nerve injury was connected to the proximal end of the left sciatic nerve using a chitin conduit. Neuroelectrophysiological test showed that the right lower limb displayed nerve conduction, and the structure of myelinated nerve fibers recovered greatly.

Modified tibial transverse transport technique for the treatment of ischemic diabetic foot ulcer in patients with type 2 diabetes.

Background: Ischemic diabetic foot ulcer is one of the terminal complications of diabetes. The high amputation rate, recurrence rate, and treatment cost have caused a huge burden on patients and society. This study designed the modified tibial transverse transport (mTTT) technology to treat diabetic ischemic diabetic foot ulcers in patients with type 2 diabetes and investigated the effectiveness and safety of this technique.

Changes in proteins related to early nerve repair in a rat model of sciatic nerve injury.

Peripheral nerves have a limited capacity for self-repair and those that are severely damaged or have significant defects are challenging to repair. Investigating the pathophysiology of peripheral nerve repair is important for the clinical treatment of peripheral nerve repair and regeneration. In this study, rat models of right sciatic nerve injury were established by a clamping method.

Effects of Akt/mTOR/p70S6K Signaling Pathway Regulation on Neuron Remodeling Caused by Translocation Repair.

Peripheral nerve injury repair has been considered a difficult problem in the field of trauma for a long time. Conventional surgical methods are not applicable in some special types of nerve injury, prompting scholars to seek to develop more effective nerve translocation repair technologies. The purpose of this study was to explore the functional state of neurons in injured lower limbs after translocation repair, with a view to preliminarily clarify the molecular mechanisms underlying this process.

Neutrophil peptide-1 promotes the repair of sciatic nerve injury through the expression of proteins related to nerve regeneration.

Small-molecule polypeptide neutrophil peptide 1 (NP-1) was reported to promote the regeneration of the sciatic nerve after denervation, but the mechanisms underlying this effect of NP-1 are unclear. Here, we established a Sprague-Dawley rat model of crush injury to study the effect of a single intermuscular injection of NP-1 on the repair of injured peripheral nerves and elucidate the possible underlying mechanism. 39 rats were randomly selected to join this study and divided into the blank control group (normal group, n=9), experimental group (NP-1 group, n=15), and negative control group (NS group, n=15).

Effects of NP-1 on proliferation, migration, and apoptosis of Schwann cell line RSC96 through the NF-κB signaling pathway.

Peripheral nerve injury is a common refractory disease in the clinic that often leads to dysfunction of movement and sensation. Different from other tissue injuries, peripheral nerve injury needs a longer time for regeneration. Therefore, effective drug therapy is needed to promote nerve regeneration in the treatment of peripheral nerve injury.

Intraoperative single administration of neutrophil peptide 1 accelerates the early functional recovery of peripheral nerves after crush injury.

Neutrophil peptide 1 belongs to a family of peptides involved in innate immunity. Continuous intramuscular injection of neutrophil peptide 1 can promote the regeneration of peripheral nerves, but clinical application in this manner is not convenient. To this end, the effects of a single intraoperative administration of neutrophil peptide 1 on peripheral nerve regeneration were experimentally observed.