Finnish Institute of Occupational Health, Centre of Expertise for Health and Work Ability, Helsinki, Finland.
Scand J Rheumatol. 2010;39(1):84-7. doi: 10.3109/03009740903201834.
Among female dentists and teachers, we investigated the relationship of pinch grip strength with radiographic hand osteoarthritis (OA) and hand joint pain.
We studied 295 female dentists and 248 female teachers aged 45-63 years for pinch grip strength using the Martin Vigorimeter. Hand radiographs were examined for the presence of OA in the wrist and each joint of the first, second, and third fingers. Joint pain and tasks with high hand loading during leisure were assessed by questionnaire. Glove size was used as proxy for hand size.
Symptomatic hand OA (jointwise co-occurrence of radiological findings and pain) increased the risk of low pinch grip strength in both hands, with an odds ratio (OR) of 3.3 (95% CI 1.8-6.2) for the right and 2.0 (95% CI 1.1-3.8) for the left hand, allowing for age, occupation, body mass index (BMI), hand size, and hand-loading leisure-time activity. The occurrence of findings and pain in non-corresponding joints was also associated with pinch grip strength in the right hand, but not in the left. Having only radiographic findings or pain was not associated with pinch grip strength.
Our findings support the view that hand function is related to the severity of hand OA.
在女性牙医和教师中，我们研究了捏力与手部放射学骨关节炎（OA）和手部关节疼痛之间的关系。
我们研究了 295 名年龄在 45-63 岁之间的女性牙医和 248 名女性教师，使用 Martin Vigorimeter 测量捏力。对手腕和第一、二、三手指的每个关节进行手部放射学检查，以确定是否存在 OA。通过问卷评估关节疼痛和休闲时手部负荷较高的活动。手套尺寸用作手部尺寸的替代指标。
症状性手部 OA（关节放射学发现和疼痛同时存在）增加了双手捏力弱的风险，右手的优势比（OR）为 3.3（95%可信区间 1.8-6.2），左手为 2.0（95%可信区间 1.1-3.8），考虑到年龄、职业、体重指数（BMI）、手部大小和手部负荷休闲活动。非对应关节的发现和疼痛也与右手的捏力相关，但与左手无关。只有放射学发现或疼痛与捏力无关。
我们的发现支持手部功能与手部 OA 严重程度相关的观点。
