How to Perform a Comprehensive Physical Examination of the Hand and Upper Extremity

High-Yield Executive Summary

• Systematic Approach: Begin with inspection, palpation, range of motion (ROM), neurovascular assessment, and special tests to avoid missing subtle pathology.
• Anatomy-Driven Exam: Focus on key anatomical landmarks—carpal bones, tendon compartments, nerve distributions—to guide targeted testing.
• Neurovascular Screening: Early identification of median, ulnar, and radial nerve dysfunction is critical for timely intervention.
• Provocative Tests: Use validated maneuvers (e.g., Phalen’s, Finkelstein’s, Tinel’s) judiciously to confirm clinical suspicion without over-reliance.
• Functional Assessment: Incorporate grip strength, pinch strength, and dexterity tests to correlate clinical findings with patient disability.

Clinical Fundamentals

Relevant Anatomy

The hand and upper extremity comprise complex osseous, tendinous, neurovascular, and ligamentous structures essential for fine motor function. The carpus consists of two rows of carpal bones forming the radiocarpal and midcarpal joints, critical for wrist mobility. The intrinsic and extrinsic muscles coordinate finger motion, with tendons passing through fibro-osseous tunnels (e.g., extensor compartments, flexor pulleys). The median, ulnar, and radial nerves provide distinct sensory and motor innervation patterns, with the median nerve vulnerable at the carpal tunnel and the ulnar nerve at the cubital tunnel.

Biomechanics

Wrist stability depends on the integrity of the scapholunate and lunotriquetral ligaments, which maintain carpal alignment during load transmission. Finger flexion and extension rely on coordinated tendon gliding within pulleys and sheaths, with pulley disruption leading to bowstringing. Grip strength is a composite function of intrinsic and extrinsic muscles, modulated by proprioceptive feedback from joint mechanoreceptors.

Epidemiology

Upper extremity injuries constitute approximately 20% of emergency department visits, with fractures, tendon injuries, and nerve compressions being most common. Carpal tunnel syndrome is the most prevalent compressive neuropathy, while distal radius fractures represent the most frequent upper extremity fracture in adults. Early and accurate physical examination is paramount to prevent chronic disability.

Classification & Diagnosis

The Decision-Making Algorithm

Non-Operative vs Operative Criteria

Non-operative management is appropriate for stable fractures without displacement, low-grade nerve compressions, and partial tendon injuries with preserved function. Operative intervention is indicated for displaced fractures compromising joint congruity, complete tendon lacerations, and nerve compressions refractory to conservative measures or with motor deficit.

Surgical Approach and Implant Selection

Surgical approach selection depends on injury location and soft tissue status. Volar approaches are preferred for distal radius fractures to facilitate plate fixation and median nerve decompression. Dorsal approaches allow direct visualization of carpal instability and extensor tendon repair. Implant choice (locking plates, screws, tendon grafts) is dictated by fracture pattern, bone quality, and soft tissue condition.

Surgical Mastery & Pearls

Stepwise Conceptual Overview

1. Inspection and Exposure: Meticulous skin incision respecting neurovascular bundles; use loupe magnification.
2. Fracture or Tendon Identification: Clear hematoma and debris; identify tendon ends or fracture fragments.
3. Reduction and Fixation: Achieve anatomic alignment; provisional K-wire fixation before definitive plating.
4. Tendon Repair: Use core and epitendinous sutures with appropriate tension; avoid overtightening.
5. Neurolysis or Decompression: Release constricting structures; confirm nerve mobility.
6. Closure and Immobilization: Layered closure preserving blood supply; apply splints to maintain functional position.

Intraoperative Red Flags

• Excessive soft tissue stripping risking devascularization.
• Failure to restore carpal alignment leading to chronic instability.
• Over-tensioning tendon repairs causing stiffness.
• Unrecognized nerve entrapment or injury.

Evidence-Based Synthesis

Recent randomized controlled trials have refined indications for surgical fixation of distal radius fractures, favoring volar locking plates in displaced intra-articular fractures for improved functional outcomes. Meta-analyses on carpal tunnel release demonstrate equivalence between open and endoscopic techniques, with faster recovery in the latter but higher technical demand. Emerging evidence supports early mobilization protocols post-tendon repair to enhance tendon gliding and reduce adhesions, though optimal timing remains debated. Nerve decompression outcomes correlate strongly with preoperative motor status, underscoring the importance of early diagnosis.

Pro-Tip

Mastery of the hand and upper extremity exam hinges on integrating anatomical knowledge with dynamic testing—always correlate physical findings with patient-reported function. Develop a tactile sense for subtle crepitus or instability during palpation. Intraoperatively, prioritize soft tissue preservation and anatomic restoration over rigid fixation. Use intraoperative fluoroscopy judiciously to confirm alignment but trust your clinical judgment. Finally, cultivate a habit of teaching and verbalizing your exam rationale to junior learners; this reinforces your own expertise and elevates surgical excellence.

Last Updated on January 26, 2026 by OrthoNet AI