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General Orthopaedics

What is the influence of pre-operative patient characteristics on the clinical outcome measures following cervical arthroplasty?

British Orthopaedic Association/Irish Orthopaedic Association Annual Congress (BOA/IOA)



Abstract

Background

The factors that are considered to be associated with successful clinical outcome fallowing cervical arthroplasty surgery are patient selection, absence of facet joint changes and lack of pre-operative kyphosis. Even though many studies have cited the pre-operative demographic details of their patient groups, the effect of associated psychological co-morbidities (Depression/Anxiety), smoking history, gender, social benefits and employment status on the clinical outcome measures have not been reported. The aim of the study was to assess the influence of pre-operative patient characteristics on the clinical outcomes following cervical disc replacement.

Methods

We included 126 patients who underwent single or multiple level cervical arthroplasty in our unit were included in the study. The clinical outcome measures such as Visual Analogue Score for neck pain (VAS-NP) and arm pain (VAS-AP); Neck disability Index (NDI), Hospital depression and anxiety scale and Bodily pain component of Short Form 36 questionnaires (SF-36 P) were recorded pre and post operatively. Statistical analysis was completed using SPSS 16.0 statistical package (SPSS Inc, Chicago, IL).

Results

There were 60 males and 63 females. Average duration of follow up was 18 months (Range 10–51). Out of 123 patients, 37 patients had a history of anxiety/depression, 25 patients gave history of smoking, 64 were actively working at the time of operation and 27 were receiving social benefits. We have found that gender; smoking status, associated co-morbidities, working and benefit status had no statistically significant contribution to clinical outcome measures in the follow up period.

Conclusion

This is has been a first ever attempt to analyse the affect these psychosocial factors on the clinical outcomes following cervical arthroplasty. In our study, contrary to studies related lumbar surgeries, we conclude that there is no statistically significant contribution of associated psychosocial factors on the clinical outcomes in the early follow up period.