31

The patient has tenderness directly over the flexor carpi radialis (FCR) at the wrist crease (Fig. 31–1). The Allen’s test was normal and a Tinel’s and nerve compression tests were negative.

PEARLS

• Isolated FCR tendinitis is rare
  
• FCR tendonitis is often seen secondary to CMC arthritis

PITFALLS

• Be aware of possibility of intraarticular injection of Marcaine into radial artery
  
• Rupture of the FCR tendon is possible with an injection. It can be avoided by using an orthoplast splint for 10 days postinjection.

Figure 31–1. Clinical hand that demonstrates location of tenderness over the flexor carpi radialis (FCR).

Figure 31–2. Robert’s view of the carpometacarpal (CMC) joint demonstrating grade IV Eaton CMC arthritis.

Anteroposterior (AP) and lateral oblique and Robert’s view (hyperpronated AP of the thumb) show abnormalities of the CMC joint (Fig. 31–2).

Differential Diagnosis

Scaphotrapezial arthritis

Scaphoid nonunions

Basal joint arthritis of the thumb

Linberg’s syndrome

Volar ganglion

FCR tendonitis

Diagnosis

Flexor Carpi Radialis (FCR) Tendinitis

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Bites to the Hand Dupuytren’s Contracture Stiff Joints Carpometacarpal Joint Injuries: Bennett’s Fractures (Wire Technique) Ganglions Acute Perilunate and Lunate Dislocations

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