A study of comparitive analysis of the outcome of Hardinge’s and Moore’s approach of hemi arthroplasty of hip

Background: The posterior (Moore) approach is generally considered to be easy to perform and has less tissue dissection, which leads to shorter operation times and less blood loss. The lateral (Hardinge) approach can provide generous exposure of the acetabulum, which facilitates cup positioning results may decrease rates of hip dislocation.Methods: In this study a prospective comparative study of outcome of Hardinge’s vs. Moore’s approach in hemi arthroplasty of hip done on 60 consecutive consenting cases who presented with a primary diagnosis of neck of femur fractures. The Selection of patients was randomized by selecting every alternate case of neck of femur fractures by Moore’s approach or Hardinge’s approach. Study recruited 30 cases in each group after the preoperative parameters like age, sex, side, mechanism of injury and the type of fracture.Results: 30 cases underwent hemi - arthroplasty of hip by Hardinge’s approach vs. Moore’s technique and we found that there was difference in duration of hospital stay, the duration of healing and the rate of complications were much higher in the Moore’s technique. In our study there was no mortality. Conclusions: Based on the findings of our study we recommend that between Hardinge’s and Moore’s approach, Hardinge’s approach is recommended as better than Moore’s approach due to number of complications is lower in Hardinge’s

A prospective study to analyse the outcome of locking compression plating by minimally invasive percutaneous plate osteosynthesis technique in proximal tibial fractures

Background: The proximal tibial fractures are one of the commonest intra articular fractures majority are of high energy fractures. We did the study to measure the outcome of locking compression plating by minimally invasive percutaeneous plate osteosynthesis technique in proximal tibial fractures.Methods: Study comprises 20 cases of proximal tibial fractures, which have been managed by MIPPO technique during the period December 2014 to August 2016.Results: The sex distribution in our study was 18 males and 2 females with 30 to 57 years age. The most common mode of injury in this study was road traffic accident. Type V Schatzker tibial plateau fractures were the commonest in 8 patients. 70% of our patients had excellent and good results in the functional outcome. In our study the average functional knee score was 22.40. The average range of movement achieved was 120 degrees. The average time taken for fracture healing was 16.52 weeks. In conclusion, MIPPO technique gives good to excellent results even in high energy tibial condyle fractures (70% cases in our study). Those who were treated with early fixation and early mobilization were found to have a better functional outcome irrespective of the fracture type. No secondary bone grafting was required.Conclusions: The study reports that MIPPO technique is an effective method of treating proximal tibial fractures due to its overall good functional outcome.

The dynamics and control of large flexible space structures, 3. Part A: Shape and orientation control of a platform in orbit using point actuators

The dynamics, attitude, and shape control of a large thin flexible square platform in orbit are studied. Attitude and shape control are assumed to result from actuators placed perpendicular to the main surface and one edge and their effect on the rigid body and elastic modes is modelled to first order. The equations of motion are linearized about three different nominal orientations: (1) the platform following the local vertical with its major surface perpendicular to the orbital plane; (2) the platform following the local horizontal with its major surface normal to the local vertical; and (3) the platform following the local vertical with its major surface perpendicular to the orbit normal. The stability of the uncontrolled system is investigated analytically. Once controllability is established for a set of actuator locations, control law development is based on decoupling, pole placement, and linear optimal control theory. Frequencies and elastic modal shape functions are obtained using a finite element computer algorithm, two different approximate analytical methods, and the results of the three methods compared

Alkaline Protease Bioprocess Optimization through Response Surface Methodology for Alkaliphilic Bacillus subtilis SHmIIIa Mutant Strain from Warangal-Telangana

The present investigations were carried out to enhance the alkaline protease production by a mutant strain Bacillus subtilis SH2 isolated from slaughter house soils of Warangal and improved through two-tier mutagenesis first by UV and then HNO2. Initially three efficient mutants with over production of alkaline protease were identified and among them only one stable mutant SHmIIIa was selected for further improvement through popular Response Surface Methodology of the FFCCD. Only X2 agitation, X6 KH2PO4 and interactive effects of X3*X3 inoculum, X4*X5 glucose and peptone have shown a significant improvement. The maximum alkaline protease production was achieved with the medium containing of X1 pH 9.8; X2 agitation 237.5 rpm; X3, inoculum size 4%; X4, glucose 6 g/L; X5, peptone 4g/L and X6, KH2PO4 2 g/L; under batch fermentative conditions with 33.33 fold increase

The dynamics and control of large flexible space structures-IV

The effects of solar radiation pressure as the main environmental disturbance torque were incorporated into the model of the rigid orbiting shallow shell and computer simulation results indicate that within the linear range the rigid modal amplitudes are excited in proportion to the area to mass ratio. The effect of higher order terms in the gravity-gradient torque expressions previously neglected was evaluated and found to be negligible for the size structures under consideration. A graph theory approach was employed for calculating the eigenvalues of a large flexible system by reducing the system (stiffness) matrix to lower ordered submatrices. The related reachability matrix and term rank concepts are used to verify controllability and can be more effective than the alternate numerical rank tests. Control laws were developed for the shape and orientation control of the orbiting flexible shallow shell and numerical results presented