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The objective of this study was to assess the correlation between neurogenic intermittent claudication (NIC) in LSS and different positions as well as loading status, using the treadmill device. The study was a prospective clinical trial on lumbar spinal stenosis (LSS) using a treadmill equipment. The study population comprised of 80 LSS patients with a mean age of 61. The equipment included a treadmill, unloading station and loading vests. The patients were instructed to walk in five different positions. The initiation time of symptoms and total walking time were recorded. The examination was stopped after 20 min or at the onset of severe symptoms. In order to obtain pretest demographic data on subjects, visual analog scale, Roland-Morris questionnaire, pain disability index, and Beck depression index were used. The initiation time of symptoms (ITS) and total walking time (TWT) were measured during the test. Unloading provided a longer and loading a shorter ITS and TWT. Decline or incline positions did not affect ITS or TWT. The changes in posture had no correlation with the appearance of symptoms in LSS patients with NIC on a treadmill in this study, rather ITS and TWT were determined by axial loading and unloading.

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Osteonecrosis, also known as avascular necrosis, is a disease caused by decreased blood flow to the bones of joints. Trauma, steroid use, alcoholism and hematological diseases are some of the important causes of osteonecrosis. 1 When osteonecrosis is diagnosed early, operative and non-operative treatments have been described with variable success rates. 2 Non-operative treatment options include a variety of medications (nonsteroidal anti-inflammatory drugs, bisphosphonates, anticoagulants, cholesterollowering drugs, vasodilators, etc.), physiotherapy methods (exercises, electrical stimulation, extracorporeal shock wave therapy, pulsed electromagnetic therapy) and hyperbaric oxygen therapy. 3 These treatment options have recently been recommended for the prevention of osteonecrosis progression. 1 Rege-nerative therapies including stem cells, platelet-rich plasma and bioactive molecules also achieve good clinical results for the treatment of osteonecrosis. 4 In this case, a patient with bilateral hip pain due to osteonecrosis caused by long-term steroid usage for Hodgkin's lymphoma was treated with intra-articular ozone. The results show the short-term effect of ozone. CASE REPORT A 45-year old male presented with complaints of bilateral hip pain and walking difficulties for the last year, and nocturnal hip pain. The initial pain assessment was measured as VAS 7 (Visual Analogue Scale). The medical history revealed a 5-year history of Hodgkin's lymphoma and 1 year previously, core