The Effect of Lumbar Spinal Stenosis on Results of Treatment in Peripheral Arterial Disease / 대한정형외과학회잡지

PURPOSE: The purpose of this study was to evaluate the result of percutaneous transluminal angioplasty (PTA) in patients with concurrent lumbar spinal stenosis (LSS) and peripheral arterial disease (PAD). MATERIALS AND METHODS: Patients who underwent PTA for intermittent claudication were evaluated retrospectively. Twenty-two patients with severe LSS were included in group A and 23 patients with no or mild LSS in group B. The symptomatic improvement after PTA was comparatively evaluated. RESULTS: Visual analogue scale (VAS) and Walking Impairment Questionnaire (WIQ) scores showed significant improvement after PTA in both groups (p<0.001, <0.001). However, according to VAS, WIQ and modified MacNab scores, results of group A were less satisfactory (p<0.001, <0.001, p=0.03). Only 2 patients underwent additional spine surgery. CONCLUSION: In results of PTA, the PAD associated LSS group showed less improvement than the PAD only group, but most patients showed symptomatic improvement with conservative treatment.

Manipulation Performance and Satisfaction of the Computer Mouse Interface in the Cervical Spinal Cord Injury Patients

OBJECTIVE: This paper aims at investigating the fitness of available computer mouse interfaces to each level of cervical spinal cord injury (SCI) patients ranging from C4 to C7. METHOD: Several commercially available computer mouse interfaces were selected for performance evaluation. They were head pointer, touch screen, button mouse, big-ball mouse, and mouse pad. Usual mouse with rubber pad was also tested for the C6-C7 SCI patients. The performance of each interface was evaluated in terms of average click rate of moving target box and patient's satisfaction. RESULTS: The results that the touch screen and the head pointer were superior to other interfaces in terms of click rate. However, in terms of the satisfaction ratio, C4-C5 SCI patients preferred the head pointer and C6-C7 SCI patients preferred the big-ball mouse. The difference in click rate and satisfaction ratio was attributed to the convenience of the interface, i.e., the necessity and type of orthosis when using the mouse interface. CONCLUSION: The results showed that the patients' preference was determined mainly by the convenience. Therefore, the convenience of the interface must be fully considered in the design and selection of computer interface for the SCI patients.