Reducing Upper Extremity Precautions After Lung Transplant: The Clamshell Protocol Pilot Study.
Haley Bento, Deborah Slay, Maxwell Hunter and 4 others
PMID 41049796WHAT IT FOUND
A less-restrictive upper extremity protocol after lung transplant was associated with fewer healing complications than traditional sternal precautions.
Four patients in the traditional group and one in the new group had adverse events. This pilot suggests the new protocol may be safe but does not prove it.
Key findings
01After excluding two errors, 4 patients (10%) experienced adverse events, with 3 (18.8%) in the traditional sternal precaution cohort and 1 (4.2%) in the new clamshell precaution cohort.
02The new protocol allowed close-to-body functional movements, trunk rotation, and stretching, and progressed weight limits by 5 lbs each week after the first 4 weeks, whereas the traditional protocol restricted all lifting to 5 lbs for 8 weeks.
03No statistical comparison was performed on adverse events due to their rarity, so the lower rate in the new protocol group is preliminary evidence only.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
The study was retrospective and non-randomized, which limits the ability to control for confounding variables. The sample size was very small (40 patients), and adverse events were rare, so no statistical comparisons were made. Compliance with movement restrictions was not formally tracked. The study did not measure functional or quality-of-life outcomes due to inconsistent data recording, so it cannot say whether the new protocol improved patient experience or function. The single-center design may limit generalizability to other institutions with different surgical or rehabilitation practices.
Declared interests
The authors declare no conflicts of interest.
The easy way to misread this
Do not interpret the lower rate of adverse events in the new protocol group as proof that it is safer. No statistical test was performed, the sample was small, and the study was not randomized. This is preliminary safety data only.
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