PWR-158 · Craft, Precision & Embodied Art

Surgical and procedural dexterity

Procedural dexterity is trainable in simulators—and simulator training can also teach the wrong thing. No score replaces supervision or credentials.

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Revision 7T · Full Tutorial Edition · Release manifest · Methodology · Corrections

One source of teaching truth

Canonical Power learning unit · TLU-PWR-158

In an accredited, faculty-supervised dry-lab task, the learner transfers six foam objects between marked zones within the validated error and damage limits and executes the emergency stop correctly.

Canonical Power page: PWR-158 · Surgical and procedural dexterity
Full tutorial: Open full tutorial
Practical authority: The tutorial teaches the complete method; qualified supervision controls the specified practical parts.
Current treatment: Full supervised tutorial
Research depth: deep · 6 bound sources
Risk framing: critical
Capability self-practice: Qualified supervision is required for the practical method
Pathway membership: G-CUR-017

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Explanation is not permission.

This dossier explains the evidence and its limits. It is not a diagnosis, personal recommendation, assessment, clearance, performance promise or training programme. Actionable teaching appears only when the canonical Power record explicitly authorises it.

Complete bounded explanation

What this power means.

Capability to develop or express surgical and procedural dexterity in a declared context without inheriting broader claims.

What the current evidence supports

Specific procedural dexterity can be trained and retained in simulation, but transfer may be positive, absent or harmful and never substitutes for credentialing.

How to observe or measure it without overclaiming

Use errors, damage, force, quality and economy alongside time; add judgment, teamwork and patient outcomes before clinical inference.

Myth

Train surgeon hands at home

Metric

Validated error, force, damage and quality across simulator and supervised target task

Boundary

Dexterity alone cannot confer clinical judgment, credential or patient safety.

Negative and limiting findings

A haptic simulator group performed worse than untrained controls on a porcine transfer model, and dyadic practice did not outperform individual practice on mean scores.

Claims this evidence cannot support

Learn surgery from Titan
Simulator score makes you competent
Fast hands make a safe surgeon
Practice procedures outside training

Individual tutorial · FULL SUPERVISED TUTORIAL

How to learn this Power now.

In an accredited, faculty-supervised dry-lab task, the learner transfers six foam objects between marked zones within the validated error and damage limits and executes the emergency stop correctly.

Get readyPrepare an accredited programme-selected dry-lab box trainer with inert foam objects and programme-approved instruments
Learn the method8 concrete steps teach the permitted method from start to finish.
See right and wrong5 comparisons show correct or safer execution beside common wrong or riskier choices.
PractiseFaculty control all later dry-lab blocks. A second block repeats same six-object geometry; a third may alter one zone position after emergency stop & visibility gates remain reliable. No live, animal, cadaveric or patient context follows from this tutorial & instrument or port difficulty changes only within accredited curriculum.
Check progressFor Surgical and procedural dexterity, measure Validated error, force, damage and quality across simulator and supervised target task. Keep the surgical and procedural dexterity fixture stable. Target: In an accredited, faculty-supervised dry-lab task, the learner transfers six foam objects between marked zones within the validated error and damage limits and executes the emergency stop correctly. Log surgical and procedural dexterity errors, prompts, burden and stops.

Authority boundary: Titan teaches the complete method; a qualified person controls the parts that require supervision, clearance, specialist equipment, load, dose or progression. The method is Power-specific; its actionability follows this treatment.

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Related Powers: PWR-153 · PWR-154 · PWR-155 · PWR-156

Direct evidence register

Sources that support—and limit—the claim.

Citation roles are explicit. A source may support existence or trainability while simultaneously limiting transfer, certainty, generalisation or safety.

Primary empirical supportLimiting / contrary
Dyadic practice for the acquisition of laparoscopic skills (DALS)-A randomized controlled trial
A M A Ritchie; N Chaudhry; S J A Robinson; M Pacilli; R M Nataraja · 2024 · Primary research
Primary empirical supportLimiting / contrary
Variable practice is superior to self-directed training for laparoscopic simulator training: a randomized trial
A Vamadevan; L Konge; F Bjerrum · 2024 · Primary research
Primary empirical supportLimiting / contrary
Training with cognitive load improves performance under similar conditions in a real surgical task
G Sankaranarayanan; C A Odlozil; K O Wells; S G Leeds; S Chauhan; J W Fleshman; D B Jones; S De · 2020 · Primary research
Primary empirical supportLimiting / contrary
Lack of transfer of skills after virtual reality simulator training with haptic feedback
C Våpenstad; E F Hofstad; L E Bø; E Kuhry; G Johnsen; R Mårvik; T Langø; T N Hernes · 2017 · Primary research
Primary empirical supportLimiting / contrary
Transference of skills in robotic vs. laparoscopic simulation: a randomized controlled trial
J J Kanitra; N Khogali-Jakary; S B Gambhir; A T Davis; M Hollis; C Moon; R Gupta; P S Haan; C Anderson; D Collier; D Henry; S Kavuturu · 2021 · Primary research
Limiting / contraryOfficial boundary context
Assessment of repetitive tasks of the upper limbs (the ART tool)
UK Health and Safety Executive · 2010 · Official authority

Current teaching and evidence boundary

The next gate remains visible.

External confirmation is required before higher-authority use because: a clinical, high-risk or regulated configuration; a supervision or non-attempt boundary; cultural, community-rights or affected-person authority; a restricted safety or legitimacy boundary.

A Power-specific tutorial is available at /tutorials/pwr-158/. It contains a plain-English method, 8 ordered steps, a worked example, right-versus-wrong comparisons, specific mistakes and corrections, practice, measurement, accessibility, stopping rules and evidence. Its supervised mode remains controlling.