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Predictive value of the five-repetition sit-to-stand test for outcomes after surgery for lumbar disc herniation: prospective study.
Klukowska et al., Eur Spine J 2023
DOI: 10.1007/s00586-023-08046-z
Oh, here we go again, another study trying to predict the unpredictable. This time, we’re looking at whether pre-operative objective functional impairment (OFI) can predict post-operative outcomes in patients with lumbar disc herniation (LDH). The tool of choice? The five-repetition sit-to-stand test (5R-STS). Groundbreaking.
So, they gathered a bunch of adults with LDH from a Dutch short-stay spinal clinic, made them do the 5R-STS, and recorded a bunch of patient reported outcome measures (PROMs). They then checked in on them 12 months after their discectomy to see how they were doing.
Drumroll, please… out of the 134 patients they recruited, 103 (76.8%) actually completed the 12-month follow-up. The mean age was 53.2 years and about half were female. Pre-operatively, 53 (51.5%) patients had OFI and 50 (48.5%) did not.
And the results? Well, post-operatively, patients with OFI experienced a significantly greater mean change across all PROMs compared to patients without OFI, except leg pain. But here’s the kicker: there were no significant differences in absolute PROMs between groups at 12-months.
So, what’s the conclusion? The presence of OFI based on 5R-STS time doesn’t seem to decrease a patient’s likelihood of experiencing satisfactory post-operative outcomes. In other words, the 5R-STS can’t predict how a patient with LDH will respond to surgery at 12-month follow-up. Shocker.