*3.1. Clinical Outcome*

The total score of CMS on the implanted arm at follow-up was, on average, 46.2 points (range: 14–77; SD: 19.5) in 25 patients. Of those patients, the average total score on the unaffected arm was 75.4 points (range: 22–100; SD: 18.4). On the assessment day, the average score on the affected arm in the strength area was 3.8 points (SD: 3.7). The patients rated the subjective pain classification using the VAS ranging from 0 to 15, with an average

of 9.7 (SD: 3.7) out of 15 points. Only one participant (4%) achieved complete freedom from pain. The mean score for everyday activities was 12.8 (range: 3–20; SD: 5.3). At the follow-up examination, the mean score in the mobility range was 19.9 (range: 4–38; SD: 9.9). The results of the SST in the surveys had a mean score of 6.5 (range: 1–10; SD: 3.5), with a median of 8. The UCLA score was, on average, 5.9 (range: 1–9; SD: 2.1), with the median lying at 5 points.
