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Study DesignA single-center, retrospective patient review of clinical and radiological outcomes of microsurgical posterior lumbar interbody fusion and decompression, without posterior instrumentation, for the treatment of lateral recess stenosis.PurposeThis study documented the clinical and radiological results of microsurgical posterior lumbar interbody fusion and decompression of the lateral recess using interbody cages without posterior instrumentation for the treatment of lateral recess stenosis.Overview of LiteratureAlthough microsurgery has some advantages, various complications have been reported following microsurgical decompression, including cage migration, pseudoarthrosis, neurologic deficits, and persistent pain.MethodsA total of 34 patients (13 men, 21 women), with a mean age of 56.65±9.1 years (range, 40-77 years) confirmed spinal stability, and preoperative radiological findings of lateral recess stenosis, were included in the study. Interbody polyetheretherketone cages and auto grafts were used in all patients. Posterior instrumentation was not used because of limited resection of the posterior lumbar structures. Preoperative and postoperative radiographs, computed tomography scans, and magnetic resonance imaging were assessed and compared to images taken at the final follow-up. Functional recovery was also evaluated according to the Macnab criteria at the final follow-up.ResultsThe average follow-up time was 35.05±8.65 months (range, 24-46 months). The clinical results, operative time, intraoperative blood loss, and duration of hospital stay were similar to previously published results; the fusion rate (85.2%) was decreased and the migration rate (5.8%) was increased, compared with prior reports.ConclusionsAlthough microsurgery has some advantages, migration and pseudoarthrosis remain challenges to achieving adequate lumbar interbody fusion.

Introduction: Adamantinoma is a primary low-grade, malignant bone tumor, of unknown histogenesis which is a rare neoplasm, comprise only 0.1-0.5% of all primary bonetumors. It is slightly more common in men than women, with a ratio of 5:4. Wide tumour resection and limb salvage is the treatment of choice. Case report: A 24 year female reffered with chief complaints of pain and limping lasting for approximately 2 years. Plain X-ray showed an expansile multicystic lesion at the diaphysis of the left tibia anterior cortex with periosteal reaction. We used an oscillating bone saw to perform a total resection of the lesion preserving the anterior cortex. Tibial defect created with this resection was replaced with a 14 cm. long strut cadaveric femoral allograft that fixed to tibia with a dynamic commpresive plate (DCP) and screws. Discussion: In surgical treatment of Adamantinoma, total resection was not performed and remain intact posterior cortex to increased the patient satisfaction, at the same time, bone fixation and early weight bearing at the postoperative. We believe that the defect will be able to union with appropriate fixation of the allograft also be long size.