## Overview A core lesion of the superficial digital flexor tendon (SDFT) is central degeneration within the tendon that may not produce external swelling at first. The tendon can feel normal on palpation while ultrasound shows a hypoechoic core. Lameness is often subtle initially but worsens if work continues. Core lesions can progress to full rupture. ## Causes Cumulative microdamage from repetitive loading. ## Diagnosis Ultrasound. The lesion is central and anechoic or hypoechoic. ## Treatment Prolonged rest and controlled rehabilitation. Regenerative therapies are sometimes used. Premature return to work risks progression. ## Recovery and Prognosis Fair to good with adequate time. Re-injury risk remains. ## Prevention Appropriate conditioning and early imaging of subtle tendon soreness.
subtle or intermittent lameness; tendon feels normal initially; hypoechoic core on ultrasound; worsens with continued work
## Overview A core lesion of the superficial digital flexor tendon (SDFT) is central degeneration within the tendon that may not produce external swelling at first. The tendon can feel normal on palpation while ultrasound shows a hypoechoic core. Lameness is often subtle initially but worsens if work continues. Core lesions can progress to full rupture. ## Causes Cumulative microdamage from repetitive loading. ## Diagnosis Ultrasound. The lesion is central and anechoic or hypoechoic. ## Treatment Prolonged rest and controlled rehabilitation. Regenerative therapies are sometimes used. Premature return to work risks progression. ## Recovery and Prognosis Fair to good with adequate time. Re-injury risk remains. ## Prevention Appropriate conditioning and early imaging of subtle tendon soreness.
subtle or intermittent lameness; tendon feels normal initially; hypoechoic core on ultrasound; worsens with continued work