Mehmet Salih Soylemez

A biomechanical comparison of proximal femoral nails and locking proximal anatomic femoral plates in femoral fracture fixation A study on synthetic bones

Background: The incidence of fractures in the trochanteric area has risen with the increasing numbers of elderly people with osteoporosis. Although dynamic hip screw fixation is the gold standard for the treatment of stable intertrochanteric femur fractures, treatment of unstable intertrochanteric femur fractures still remains controversial. Intramedullary devices such as Gamma nail or proximal femoral nail and proximal anatomic femur plates are in use for the treatment of intertrochanteric femur fractures. There are still many investigations to find the optimal implant to treat these fractures with minimum complications. For this reason, we aimed to perform a biomechanical comparison of the proximal femoral nail and the locking proximal anatomic femoral plate in the treatment of unstable intertrochanteric fractures. Materials and Methods: Twenty synthetic, third generation human femur models, obtained for this purpose, were divided into two groups of 10 bones each. Femurs were provided as a standard representation of AO/Orthopedic Trauma Associationtype 31-A2 unstable fractures. Two types of implantations were inserted: the proximal femoral intramedullary nail in the first group and the locking anatomic femoral plate in the second group. Axial load was applied to the fracture models through the femoral head using a material testing machine, and the biomechanical properties of the implant types were compared. Result: Nail and plate models were locked distally at the same level. Axial steady load with a 5 mm/m velocity was applied through the mechanical axis of femur bone models. Axial loading in the proximal femoral intramedullary nail group was 1.78-fold greater compared to the plate group. All bones that had the plate applied were fractured in the portion containing the distal locking screw. Conclusion: The proximal femoral intramedullary nail provides more stability and allows for earlier weight bearing than the locking plate when used for the treatment of unstable intertrochanteric fractures of the femur. Clinicians should be cautious for early weight bearing with locking plate for unstable intertrochanteric femur fractures.

Mid-term radiological and clinical results of incomplete triple pelvic osteotomy

Objective The aim of this study was to assess clinical and radiological results of incomplete triple pelvic osteotomy in acetabular dysplasia. Patients and methods Twenty-six hips of 24 patients (5 males, 19 females) treated with incomplete triple pelvic osteotomy by a single surgeon from February 1995 to October 2001 were retrospectively reviewed at an average follow-up time of 12 years. The mean age at the time of surgery was 21.6 years (range: 14–41). Radiological evaluation was based on the central edge angle, acetabular angle, acetabular index, acetabular head index and lateralisation. Clinical and radiological scoring was performed using the Harris scoring system, Ömeroğlu scoring system and the Tönnis criteria for osteoarthritis. Results There was significant improvements in all of the radiological parameters with 88.5% good radiological results, 96.2% excellent clinical results, no significant progression to osteoarthritis and no need for conversion to total hip arthroplasty. The rate of major complication was 11%. Retroversion was seen in 15.4% of the hips. Conclusion Our results support the use of incomplete triple pelvic osteotomy as a safe choice in the treatment of acetabular dysplasia as it offers clinical and radiological benefits and contributes to the prevention of osteoarthritis. Level of evidence Level IV, therapeutic study.

A case of intramuscular myxoma presenting as a swollen shoulder: a case report

IntroductionIntramuscular myxoma is a rare benign mesenchymal tumor. Myxomas most commonly occur in the heart. They may occur less frequently in aponeurotic tissues, bone, genitourinary tract, subcutaneous tissue and skin.Case presentationThe case described here is a 44-year-old Turkish woman who presented with the complaint of a swelling in her right shoulder. A preoperative magnetic resonance imaging revealed a lobular contoured mass lesion in her deltoid muscle. The mass was marginally excised and pathology revealed intramuscular myxoma.ConclusionIntramuscular myxoma of the deltoid muscle is a very rare benign tumor. In the differential diagnosis, reactive lesions, myxoid nodular fasciitis and low -grade myxoid sarcomas should be kept in mind, upon which the treatment should be planned.

Intermittent negative pressure wound therapy with instillation for the treatment of persistent periprosthetic hip infections: a report of two cases.

Intermittent negative pressure wound therapy with instillation (NPWTi) is starting to be used successfully to treat early periprosthetic infections of endoprostheses. However, few articles have reported the outcome of treatment with intermittent NPWTi for late persistent periprosthetic infections of the hip. In this study, we report two cases who underwent several rounds of radical wound debridement for the treatment of a late persistent periprosthetic infection of the hip. Intermittent NPWTi was used in both cases. Patients were treated successfully and there was no recurrence after 3 and 1 years of follow-up, respectively.

Unusual implant-related soft tissue reaction presenting as a swollen leg: a case report

IntroductionThere are several causes of peri-implant edema, pain, and swelling around implants after orthopedic fixation device application for fracture repair. The most common and well-known reason is infection, however, granulomas associated with foreign body reactions are rarely seen. In this report we present a case of a granulomatous reaction mimicking a hydatid cyst and sarcoma. We emphasize the importance of differential diagnosis in triggering appropriate management of the patient. Our case was unusual; to the best of our knowledge no similar clinical or pathological findings have been reported in current literature.Case presentationA 56-year-old Turkish man who had been treated for a right femoral fracture via a plate fixation 10 years prior underwent an operation to treat pain and swelling around the plate. A hydatid cyst-like mass was observed during surgery, but subsequent examination revealed that no hydatid cyst was present; both malignancy and infection were also absent.ConclusionsAlthough infection is generally the first possibility that should be considered in a patient complaining of pain and swelling in the vicinity of an implant, malignancies, hydatid cysts, and (finally) foreign body reactions should also be kept in mind as differential diagnoses. A soft-tissue reaction around a previously implanted plate should be managed carefully. Pre-operative radiological assessment, and biopsy to allow pathological and microbiological examination, should be considered in all suspected cases.

Endometrial adenocarcinoma recurrence presenting with tibial metastasis: Report of a case

Highlights • Endometrial adenocarcinoma recurrence in tibia after 2 years of total abdominal hysterectomy and bilateral salpingo-oophorectomy.• Endometrial adenocarcinoma metastasis to skeletal system is extremely rare and mostly have been reported to be in axial skeleton.• Fresh frozen femoral allograft was used after wide resection for the metastatic adenocancer area of the tibia and provided the bone union.• Wide resection and reconstruction with an allograft might be an option to increase survival and possible cure of the patient as seen in our case.

Factors predicting the outcomes of incomplete triple pelvic osteotomy

Introduction In the present study, we identified factors affecting the outcomes of patients who underwent incomplete triple pelvic osteotomies due to acetabular dysplasia. Methods Data on a total of 58 hips in 50 patients for whom adequate data were available and who had undergone appropriate follow-up were retrospectively evaluated. We used Ömeroğlu scores for radiological evaluation, Harris Hip Scores for clinical evaluation, Tönnis scores to evaluate osteoarthritis progression and a modified Clavien-Dindo classification to evaluate complications. Results The average patient age was 23.26 (14-47) years, and the average follow-up duration 105.59 (18-191) months. The complication rate was 10.3%, and complications negatively influenced clinical outcomes. Patients with radiologically poorer outcomes had more advanced osteoarthritis. We found minimal improvements in lateral centre edge angle (LCEA), refined centre-edge angle (RCEA), and lateral acetabulum head index (LAHI) were associated with osteoarthritis progression and that good improvements in LCEA, RCEA, acetabular angle (AA), and LAHI were associated with radiological outcomes. Neither patient age at the time of operation nor development of a postoperative relative crossover sign affected osteoarthritis progression or clinical or radiological outcomes. Conclusions The most important factors influencing clinical outcomes were complications. However, neither postoperative acetabular retroversion nor a positive supra-equatorial crossover sign (often viewed as prognostically negative) directly affected clinical outcomes. When treating patients with acetabular dysplasia, either inadequate correction or overcorrection may negatively affect outcomes. In such patients, an incomplete triple pelvic osteotomy (allowing controlled correction) is both safe and effective.