Post traumatic genu valgum with valgus deformity of left lower femur and upper tibia valgus and procurvatum deformity with 10cm lld and puckering of skin around knee with bad scar

Post-traumatic femoral valgus and upper tibia valgus and procurvatum deformity with 10cm LLD were corrected with Ilizarov Technique. The lower femur deformity correction and deformity correction of upper tibia and lengthening were carried out simultaneously. This case demonstrates an approach to large complex post-traumatic deformity in the left knee region with puckering of the skin and bad scar.

Customized Reconstruction of Complex Soft Tissue Defect Around the Knee with Individual Design of Free Perforator Flap

Background Reconstruction of complex soft tissue defect around the knee, particularly in involving with large soft tissue defect or disruption of extensor mechanism, always is a challenging problem. The purpose of this study was to introduce our clinical experience on using individual design of free perforator flap for complex soft-tissue reconstruction around the knee. Methods Between June 2010 and March 2017, 16 patients underwent the reconstruction of complex soft tissue defect in the knee region with free perforator flap, Various flap designs was performed basing on the location of wound, the require pedicle length, the tissue components that are deficient, the volume of such components and the risk of donor site morbidity.Results Complex soft tissue defect of the knee was reconstructed with anteriorlateral thigh perforator (ALTP) flap in 5 cases, modified ALTP flap in 2 cases, chimeric ALTP flap in 4 cases, dual skin paddles ALTP flap in 2 cases and chimeric thoracodorsal artery perforator (TDAP) flap in 2 cases. Multiple perforator flaps and vascularized fascia lata in combination were performed in one case. All flaps survived postoperative. None vascular congestion was observed. Only one case suffered partial necrosis. Primary closure of donor site was performed for all patients. The mean follow-up time was 16.5 months. Most cases showed satisfactory flap contour and acceptable function outcome. Conclusions Free perforator flap is a reliable option for repairing complex soft tissue defect in the knee region, especially when local and pedicled flaps are unavailable. Various flap designs allow for more individualized treatment approaches.

Thermography and colour Doppler ultrasound: a potential complementary diagnostic tool in evaluation of rheumatoid arthritis in the knee region

The aim and objectives of this study were as follows: (i) to perform automated segmentation of knee thermal image using the regional isotherm-based segmentation (RIBS) algorithm and segmentation of ultrasound image using the image J software; (ii) to implement the RIBS algorithm using computer-aided diagnostic (CAD) tools for classification of rheumatoid arthritis (RA) patients and normal subjects based on feature extraction values; and (iii) to correlate the extracted thermal imaging features and colour Doppler ultrasound (CDUS) features in the knee region with the biochemical parameters in RA patients. Thermal image analysis based on skin temperature measurement and thermal image segmentation was performed using the RIBS algorithm in the knee region of RA patients and controls. There was an increase in the average skin temperature of 5.94% observed in RA patients compared to normal. CDUS parameters such as perfusion, effusion and colour fraction for the RA patients were found to be 1.2 ± 0.5, 1.8 ± 0.2 and 0.052 ± 0.002, respectively. CDUS measurements were performed and analysed using the image J software. Biochemical parameters such as erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) showed significant positive correlation with the thermal imaging parameters. The CDUS parameters such as effusion, perfusion and colour fraction correlated significantly with the clinical and functional assessment score. According to the results of this study, both infrared (IR) thermal imaging and CDUS offer better diagnostic potential in detecting early-stage RA. Therefore, the developed CAD model using thermal imaging could be used as a pre-screening tool to diagnose RA in the knee region.