Inasmuch as all subjects except one were still driving and all wished to continue to drive, it is important to note that 63.2% of subjects failed the on-road evaluation. Conversely, 36.8% were judged safe to drive, suggesting that AD diagnosis alone may be insufficient criteria for cessation of driving. A standardized road test may be the only appropriate means of determining driving competence in people diagnosed with AD.
Objectives
(1) To determine the prevalence of cervical zygapophyseal joint pain in a specialist clinical setting; (2) to review the number of diagnostic blocks needed to identify the segmental level of the symptomatic joints; and (3) to determine the distribution of segmental levels of cervical zygapophyseal joint pain in a clinical setting.
Design and setting
Retrospective audit of patients of three independent rehabilitation medicine specialists who had undergone cervical zygapophyseal joint blocks in hospital outpatient clinics and private rooms.
Patients
97 patients aged 18–82 years with chronic neck pain (with or without headache) of more than six months' duration refractory to conservative therapies.
Intervention
Diagnostic fluoroscopic cervical third occipital and medial branch blocks of zygapophyseal joints. Diagnosis required confirmation by a repeat procedure.
Results
35 of 97 patients (36%) had a confirmed symptomatic cervical zygapophyseal joint (95% CI, 27%–45%). The symptomatic segmental level was found at the first attempt by reference to a standard pain diagram in 83% of cases (29 of 35). The most common symptomatic levels were C3‐4 (11/35; 31%) and C5‐6 (10/35; 29%).
Conclusion
The prevalence of cervical zygapophyseal joint pain estimated in this clinical study is lower than that found in previous research setting studies, but our requirement for confirmation by a repeat block (which many patients declined) makes our estimate conservative; it is likely that the true prevalence is higher. Zygapophyseal joints are clearly a common source of pain in patients presenting with chronic neck pain, with or without headache. Cervical zygapophyseal joint pain is readily diagnosable, enabling patients to seek further, targeted treatment.
Pregabalin has demonstrated efficacy in several forms of neuropathic pain, but its long-term efficacy in central post-stroke pain (CPSP) is unproven. We evaluated the efficacy and safety of pregabalin versus placebo in patients with CPSP. A 13-week, randomized, double-blind, multicenter, placebo-controlled, parallel group study of 150 to 600 mg/day pregabalin was conducted in patients aged ≥18 years with CPSP. The primary efficacy endpoint was the mean pain score on the Daily Pain Rating Scale over the last 7 days on study drug up to week 12 or early termination visit. Secondary endpoints included other pain parameters and patient-reported sleep and health-related quality-of-life measures. A total of 219 patients were treated (pregabalin n=110; placebo n=109). A mean pain score at baseline of 6.5 in the pregabalin group and 6.3 in the placebo group reduced at endpoint to 4.9 in the pregabalin group and 5.0 in the placebo group (LS mean difference=-0.2; 95% CI=-0.7, 0.4; P=0.578). Treatment with pregabalin resulted in significant improvements, compared with placebo, on secondary endpoints including MOS-sleep, HADS-A anxiety, and clinician global impression of change (CGIC) P<0.05. Adverse events were more frequent with pregabalin than with placebo and caused discontinuation in 9 (8.2%) of pregabalin patients versus 4 (3.7%) of placebo patients. Although pain reductions at endpoint did not differ significantly between pregabalin and placebo, improvements in sleep, anxiety, and CGIC suggest some utility of pregabalin in the management of CPSP.
The findings indicate that subjects had better balance when wearing shoes with high collars than when wearing shoes with low collars and that sole hardness was not related to balance.
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