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Biomedical subjects

H Omeroglu

Publications and source records attributed to H Omeroglu.

8 recordsLinked to original sources
PubMed2005

Incomplete triple pelvic osteotomy for the surgical treatment of dysplasia of the hip in adolescents and adults.

We treated 26 hips (24 consecutive patients) with residual dysplasia by a technique of incomplete triple pelvic osteotomy. The mean age of the patients was 21.6 years. The mean values for the pre-operative centre-edge angle of Wiberg, the refined centre-edge angle, the acetabular angle of Sharp, the modified acetabular angle and femoral head lateralisation were 7.7 degrees, -3.1 degrees, 49.3 degrees, 53.2 degrees and 17.2 mm, respectively. After a mean follow-up of 3.3 years they were 27.0 degrees, 13.0 degrees, 38.9 degrees, 44.3 degrees and 15.9 mm, respectively (p < 0.05). The osteoarthritic grading changed adversely in one hip. The mean pre-operative and latest Harris hip scores were 74.9 and 93.0, respectively (p < 0.05). This technique provides a stable osteotomy with maintenance of the posterior column which allows early mobilisation and minimal internal fixation. The technique is not complex and requires minimal blood transfusion. The use of an image intensifier is not necessary and harvesting of a subcristal bone graft avoids post-operative complications at the donor site.

Adolescent↗
PubMed2003

Occult spinal dysraphism and its association with hip dysplasia in females.

We examined the pelvic radiographs of two groups of patients (more than 12 years of age) from six medical centres. Hip dysplasia was considered to be present if Shenton's line was broken and more than one third of the femoral head was revealed to be uncovered in an antero-posterior radiograph of the pelvis. Patients with hip dysplasia due to teratological or neurological causes were excluded. There were 291 patients with treated or untreated hip dysplasia in the dysplastic group. The control group of 415 individuals was collected from consecutive outpatients (with a pre-set standardised female/male ratio) for whom an antero-posterior radiograph of the pelvis had been made in one of two medical centres and which did not disclose any abnormality of the hip joints. The aim of the study was to assess the co-existence of hip dysplasia and occult spinal dysraphism. Radiographs of all patients were examined, and any partial or complete defect of the posterior vertebral arch was recorded. In the dysplastic group, a defect was recorded in 23% (67/291) radiographs and in the control group in 12% (48/415). In both groups, L5 and S1 were the most commonly recorded sites with a defect. In the dysplastic group, a defect was recorded in 56/190 females and in the control group in 30/302 females. In males, there was no significant difference between the recorded findings in the two groups. In females with hip dysplasia, occult spinal dysraphism seems to be fairly common.

Adult↗
PubMed2001

Bilateral peroneal nerve palsy after simultaneous bilateral total knee arthroplasty. Report of a case with rheumatoid arthritis.

In this study, we report on a 46-year-old female patient with bilateral severe gonarthrosis due to rheumatoid arthritis. Simultaneous bilateral cemented total knee arthroplasty was performed. Bilateral common peroneal nerve palsy was observed on the second postoperative day. The electromyographic diagnosis was "bilateral axonotmesis". Complete clinical and electromyographic motor recoveries were seen on both sides within 6 months postoperatively. The sensorial deficit was still present on one side at 2 years postoperatively. Preoperative severe flexion contracture and epidural anesthesia were assumed as the risk factors for the development of the nerve palsy in this patient.

Anesthesia, Epidural↗
PubMed1999

Intraobserver and interobserver reliability of Kalamchi and Macewen's classification system for evaluation of avascular necrosis of the femoral head in developmental hip dysplasia.

This study evaluates the intraobserver and interobserver reliability of the Kalamchi and MacEwen's classification system of avascular necrosis of the femoral head. Radiographs of 48 developmentally dysplastic hips that had an average follow-up of 40.5 months (range: 36 to 52 months) and that had been treated by the same operative technique were interpreted twice by four experienced pediatric orthopaedic surgeons. When the absence or presence of avascular necrosis was taken into consideration the average intraobserver agreement percentage and kappa coefficient were 86% and 0.71, respectively. The average interobserver agreement percentage and kappa coefficient were 83% and 0.66, respectively. When the agreement on the type of avascular necrosis was analyzed, the average intraobserver agreement percentage and kappa coefficient were 85% and 0.74, respectively. The average interobserver agreement percentage and kappa coefficient were 81% and 0.66, respectively. No statistically significant difference was found between the rates of avascular necrosis of four observers. The Kalamchi and MacEwen's classification system was found to be reliable and reproducible.

Femur Head Necrosis↗
PubMed1998

Effect of 25-OH-vitamin D on fracture healing in elderly rats.

To investigate the effect of 25-OH-vitamin D supplements (calcidiol) on fracture healing in the elderly, an experimental model with 15 18-month-old female Wistar rats was designed. An experimental fracture in the middle third of both femora of each rat was made. Then the rats were randomly assigned to two groups: one group was subcutaneously treated with 25-OH-vitamin D during all healing processes, and the other group (the control group) was not. After 5 weeks of healing, the animals were killed and both femora were extracted. Blood samples were collected before fracture and at death to determine the levels of 25-OH-vitamin D. All bones that were extracted were subjected to a torsion test to assess healing; a significantly greater maximum shear force before failure was supported in the treated group (p < 0.01). Moreover, a positive correlation (p < 0.01; r=0.55) was found between blood levels of 25-OH-vitamin D at death and the mechanical strength of the callus. Thus, the administration of 25-OH-vitamin D after the experimental fracture significantly improved the mechanical strength of the fractured bone. If similar results are found in the human, then treatment with 25-OH-vitamin D after the occurrence of a fracture would be a good way to improve fracture healing in the elderly.

Aging↗
PubMed1991

Medial approach open reduction for congenital dislocation of the hip using the Ferguson procedure. A review of 31 hips.

Between January 1979 and October 1984, 31 congenitally dislocated hips in 19 patients were treated using open reduction via the medial approach, as described by Ferguson, at the Ankara University Faculty of Medicine. Patient age at operation ranged from 3 to 33 months (mean 12.1 months). The average follow-up was 94.7 months. All hips were evaluated both radiographically and clinically. Avascular necrosis of the femoral head was observed in 9.7% and slight, transient ischaemic radiographic changes of the femoral head in 22.6% of the hips; 25.8% of the hips have already undergone or are due to undergo subsequent surgery due to an insufficient radiographic result. The medial approach was found to be a reliable procedure for infants who have not had extensive previous conservative treatment and who are between 7 and 18 months of age.

Child, Preschool↗