A multicentric retrospective study for the treatment of humerus bone fracture following humerus plate fixation with screws

Background: The goal of this study was to investigate the performance of the humerus bone fixation with screws while treating humerus bone fracture.Methods: The 34 patients’ retrospective data was collected with 1 year of follow up. Humerus fractures were treated by humerus plate fixation in different hospitals and countries, including 26 males and 8 females, with the age range of 32 -74 years (mean 47.4 years). Clinical and radiological follow-ups were conducted at 1 month, 3 months, 6 months and 1 year after surgery to check the bone union and implant-related complications. Ten different plates were used for the treatment of fracture as per the fracture type. The patient's health status was evaluated by the American society of anesthesiologists grade and the visual analogue score (VAS) was also obtained.Results: The progressive decline in the VAS score showed positive results related to pain management. All patients receive continuous physiotherapy under the supervision of physiotherapists, which aids in faster recovery and mobilization. No biomechanical issue related to implant plate and screw loosening, corrosion, bend, or other factors was detected in our 34 patients. Out of 34 patients 91% were satisfied with no pain and the remaining 9% were unsatisfied due to pain. About 85% of patients were happy with aesthetic appearance and the rest 14% of patients were unhappy related to aesthetic appearance.Conclusions: Humerus plate fixation is feasible for the treatment of humerus fracture. The clinical outcomes and prognosis of patients are dependent on the accuracy of intraoperative reduction and surgical expertise

Clinical efficacy of the radius bone plates for the fixation of radius bone fractures

Background: The purpose of this study was to evaluate the clinical efficacy of the radius bone plates fixation for treating radius bone fracture.Methods: Forty-Five patients with fracture of the radius involving the distal part were treated with fixed angle plate fixation approach. This was a retrospective study in which 45 patients (39M, 6F) were treated at different hospitals and countries between August 2020 to October 2021 with a mean follow up of year (1month, 3months, 6months and 12months). All patients were followed using radiographs, physical examination, ASA and VAS score.Results: All patients with radius fracture treated with specific fixation of plate system were enrolled and received continuous physiotherapy by physiotherapists, which helped in early healing. The clinical treatment results showed decline in the VAS score percentage after 1 year follow up. About 91.1% patients were satisfied with no pain and 8.8% patients were unsatisfied due to mild pain. A successful surgical outcome was reported without any complications related to implant breakage, loosening, corrosion or other factors.Conclusions: The radius plate system results in more efficient, stable fixation and better subjective results early in the postoperative period. It has minimal complications requiring reoperation and risks

Clinical performance of tibia bone plate system for fixation of tibia fracture

Background: In this study, we aimed to investigate the performance of the tibia plates system while treating the tibia fracture fixation. The objective of this study was to reduce the post-operative complications of proximal and distal tibia fracture by using indigenously manufactured implants (plates and screws).Methods: In this retrospective study, we studied the results of the tibia plate system in treatment of tibia fracture. A total of 34 consecutive patients were included in this study (24 males, 10 females and average age 48.6 years). Fracture type was classified as per the Muller AO classification of fracture. According to the AO classification, proximal and distal tibia fractures 41-A, 41-B and 41-C was observed with one year follow up period followed by physical exercises after one month of the surgery. The fractures were treated with wise-lock proximal and distal tibia plates.Results: The outcomes of clinical treatment were obtained in our study; no pain (88.2%), mild pain (11.7%) after 1 year follow up. The follow up of patients was taken on 1 month, 6 months and 1 year according to visual analog scale (VAS) score. No implant related problem have been found like loosening, bending and corrosion. X-ray was used to check the union, non-union. Functional outcomes were assessed with VAS.Conclusions: Treatment of tibia fracture with wise-lock proximal and distal tibia plate shows good outcomes with less complications

Clinical outcomes of fibula bone fracture treated with fibula plate and screws: a retrospective study

Background: The aim of this study was to examine the performance of the plate system with screws while treating Fibula bone fracture.Methods: This was a retrospective study in which 36 patients (27M and 9F) were treated for fibula bone fracture in M.O.H. Jeetoo hospital between September 2020 to December 2021 with a mean follow up of 1 year (1month, 3 months, 6months and 12months). Radiological results at every follow up showed bone union and related complications. Physical fitness of the patients was examined by the American society of anesthesiologists grade and the pain intensity was analyzed by VAS scoring table.Results: The gradually dropping in VAS score indicates positive results to pain management. Consistently, all patients received physiotherapy under physiotherapists. No patient complained of problems or hardware-related issues at the time of the last follow-up, and every patient had proper bone union. At a six-month follow-up, radiological results also indicated proper union.Conclusions: Complications risks are minimal with plate fixation for fibula bone fractures. Better outcomes and accuracy depend upon the surgical skills that can lead to reduced complications

Basal characteristics of the main sticky spot on the ice plain of Whillans Ice Stream, Antarctica

Understanding the processes that affect streaming ice flow and the mass balance of glaciers and ice sheets requires sound knowledge of their subglacial environments. Previous studies have shown that an extensive deformable subglacial sediment layer favors fast ice-stream flow. However, areas of high basal drag, termed sticky spots, are of particular interest because they inhibit the fast flow of the overriding ice. The stick-slip behavior of Whillans Ice Stream (WIS) is perhaps the most conspicuous manifestation of a subglacial sticky spot. We present new ice-thickness and seismic-reflection measurements collected over the main sticky spot in the ice plain of WIS, allowing us to elucidate its role in the behavior of the ice stream. Ice-thickness and surface-elevation data show that the sticky spot occupies a subglacial topographic high. Water flow in response to the hydrological potential gradient will be routed around the sticky spot if effective pressures are similar on the sticky spot and elsewhere. The seismic experiment imaged a laterally continuous basal layer approximately 6 m thick, having compressional wave velocities of greater than 1800 m s−1 and density greater than 1800 kg m−3, indicative of a till layer that is stiffer than corresponding till beneath well-lubricated parts of the ice stream. This layer likely continues to deform under the higher shear stress of the sticky spot, and some water may be pumped up onto the sticky spot during motion events

Characteristics of the sticky spot of Kamb Ice Stream, West Antarctica

Amplitude analysis of reflection seismic data reveals the presence of highly variable bed conditions under the main sticky spot and adjacent regions of the Kamb Ice Stream (KIS—formerly ice stream C). The sticky spot, which is a zone of bed that imparts high basal resistance to ice flow, is situated on a local topographic high composed of consolidated sediments or sedimentary rock. Any meltwater draining from upglacier along the base of the ice is routed around the sticky spot. The ice over the sticky spot includes, in at least some places, a seismically detectable basal layer containing a low concentration of debris, which locally thickens to 40 m over a topographic low in the bed. The ice-contact basal material ranges from dilated and highly porous to more-compacted and stiff, and perhaps locally frozen. The softer material is preferentially in topographic lows, but there is not a one-to-one correspondence between basal character and basal topography. We speculate that the 40-m-thick frozen-on debris layer formed by glaciohydraulic supercooling of lake-drainage events along a basal channel during the former, active phase of the ice stream. We also speculate that loss of lubricating water, perhaps from piracy upstream, contributed to the slowdown of the ice stream, with drag from the sticky spot playing an important role, and with the basal heterogeneity greatly increasing after the slowdown of the ice stream