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Behavioral Assessment of Manual Dexterity in Non-Human Primates
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Proficiency and Difficulty Scoring Tools for Finger Replantation.

Kevin C Chung1, Adee Heiman2, Sunitha Malay2

  • 1Section of Plastic Surgery, University of Michigan Medical School, Ann Arbor.

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|October 30, 2025
PubMed
Summary
This summary is machine-generated.

Surgeon skill in digit replantation and revascularization is linked to patient outcomes. Higher surgeon proficiency scores correlate with increased success rates for these complex procedures.

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Area of Science:

  • Microsurgery
  • Surgical Skill Assessment
  • Trauma Surgery

Background:

  • Replantation and revascularization are highly complex surgical procedures with variable success rates.
  • Objective methods for assessing surgeon proficiency in these challenging operations are currently lacking.
  • Standardized scoring systems are needed to evaluate surgeon skill and improve patient outcomes.

Purpose of the Study:

  • To determine if a surgeon proficiency score is associated with clinical outcomes in digit replantation and revascularization.
  • To investigate the relationship between surgeon skill, procedure difficulty, and success rates across multiple institutions.

Main Methods:

  • A multicenter retrospective cohort study analyzed adult patients undergoing digit replantation or revascularization.
  • Surgeon proficiency and procedure difficulty scores were calculated based on early and later procedure outcomes and patient/injury characteristics.
  • Procedure success was defined as digit survival at 1 month post-operation.

Main Results:

  • Overall success rate for 653 digits was 70.1%.
  • Higher procedure difficulty scores were significantly associated with failed procedures (P < .001).
  • Each 1-point increase in surgeon proficiency score correlated with a 7.5% increase in future success rate (P < .001).
  • Adjusted analysis showed greater surgeon proficiency (OR, 1.46) and lower difficulty (OR, 0.70) were linked to higher success likelihood.

Conclusions:

  • Surgeon proficiency score is a significant predictor of success in digit replantation and revascularization.
  • Incorporating proficiency and difficulty scoring tools into trauma referral networks can optimize patient transfer and care.
  • These findings support the need for targeted training and resource allocation to enhance surgical expertise in replant centers.