ART-910: Wrist and Hand Injuries in Tennis — Tendinopathy, Fractures, and Nerve Compression
Executive Summary
Wrist and hand injuries account for approximately 10-15% of tennis-related conditions, ranging from acute fractures to chronic tendinopathies. The repetitive gripping, wrist snapping, and high-velocity impacts inherent in tennis create unique stresses on these small structures that, when managed improperly, can sideline players for extended periods.
Wrist and Hand Anatomy for Tennis
Bones
- Carpal bones: 8 bones arranged in two rows; scaphoid and hook of hamate most vulnerable to fracture
- Metacarpals: 5 bones forming the palm; 5th metacarpal vulnerable during one-handed backhand
- Phalanges: 14 finger bones; vulnerable to jamming during ball contact
Key Structures
- TFCC (Triangular Fibrocartilage Complex): Stabilizes the ulnar side of the wrist
- Scapholunate ligament: Connects scaphoid and lunate
- Median nerve: Passes through carpal tunnel
- Ulnar nerve: Passes through Guyon's canal
Common Wrist and Hand Injuries
TFCC Tears
- Mechanism: Repetitive loading with wrist extension and ulnar deviation (topspin forehands and serves)
- Types: Central tears (degenerative) vs. peripheral tears (traumatic, more amenable to repair)
- Symptoms: Ulnar-sided wrist pain, clicking, weakness in grip, pain with forearm rotation
- Treatment: Splinting for 6 weeks; arthroscopic repair for refractory cases
De Quervain's Tenosynovitis
- Mechanism: Inflammation of the first dorsal compartment from repetitive gripping and wrist deviation
- Symptoms: Radial-sided wrist pain, swelling over radial styloid, pain with thumb movement
- Special test: Finkelstein test
- Treatment: Thumb spica splint, corticosteroid injection (80% success rate)
Carpal Tunnel Syndrome
- Mechanism: Median nerve compression from repetitive gripping, vibration, and wrist positioning
- Symptoms: Numbness and tingling in thumb, index, middle fingers; worse at night
- Special tests: Phalen's test, Tinel's sign, nerve conduction studies
- Treatment: Night splinting, ergonomic modifications, corticosteroid injection, surgical release
Hook of Hamate Fracture
- Mechanism: The hook of hamate is struck by the butt of the racket during a swing
- Symptoms: Pain on ulnar side of palm, worsened by gripping
- Diagnosis: Carpal tunnel view X-ray or CT scan
- Treatment: Excision of the fragment; return to play 6-8 weeks
- Prevention: Ensure proper grip size and avoid excessive hand sliding
ECU Tendinopathy/Subluxation
- Mechanism: Repetitive wrist extension and ulnar deviation stresses the ECU tendon
- Symptoms: Ulnar-sided wrist pain, possible snapping sensation
- Treatment: Immobilization in splint, corticosteroid injection, surgical stabilization
Risk Factors in Tennis
Racket Factors
- Grip size: Too small increases grip force and vibration transmission
- Racket weight: Heavier rackets increase impact forces on the wrist
- Stiffness: Stiffer frames transmit more vibration to the hand
Technique Factors
- Excessive wrist action on serves and groundstrokes
- Poor grip selection for shot type
- Inadequate grip changes between shots
Prevention Strategies
Equipment Optimization
- Correct grip size: measure from middle crease of palm to tip of ring finger; add 1/16 inch
- Vibration dampeners and cushioned grip wraps
- Flexible frame (RA 60-65) and low-stiffness strings
- Overgrip with cushioning properties
Conditioning
- Grip strengthening: Hand grip exercises, rice bucket training
- Wrist strengthening: Wrist curls, reverse wrist curls, radial/ulnar deviation
- Forearm conditioning: Pronation/supination exercises, eccentric wrist extension
- Stretching: Wrist flexor and extensor stretches, 3 sets of 30 seconds each
Diagnostic & Training Matrix
| Observation | Failure | Result | Corrective Strategy |
|---|---|---|---|
| Ulnar-sided wrist pain with topspin forehand | TFCC overload or ECU tendinopathy | Reduced forehand confidence, grip weakness | Splint in pronation for 4 weeks; reduce topspin loading |
| Radial styloid pain with gripping | De Quervain's tenosynovitis | Pain with any racket holding | Thumb spica splint; corticosteroid injection |
| Numbness in thumb/index/middle fingers | Carpal tunnel syndrome | Weakness, loss of fine motor control | Night splint; nerve conduction study; surgical evaluation |
| Palm pain on ulnar side after hard hit | Hook of hamate fracture | Grip weakness, pain with pressure | CT scan; consider fragment excision |
| Snapping sensation on ulnar wrist | ECU subluxation | Instability, apprehension | Immobilization; surgical stabilization if recurrent |
Practical Application: "Grip Lightly, Swing Freely"
A death grip on the racket transmits every ounce of vibration and shock directly to your wrist. Practice holding your racket at only 3-10 grip pressure during rallies — firm enough to control the racket, loose enough to absorb shock. Between points, consciously release all grip pressure and shake your hand. Over time, this conscious relaxation becomes automatic, reducing cumulative wrist stress dramatically. Your wrist will thank you after 10,000 swings.