## Overview Pathology of the deep quadriceps muscles produces thigh pain and weakness of stifle extension. Because of the depth of the muscles, clinical assessment is difficult and ultrasound-guided techniques are often needed for diagnosis and treatment. It is usually part of a broader quadriceps injury rather than an isolated problem. ## Causes Strain from slipping, sudden effort, or compensatory overload. ## Diagnosis Pain on deep palpation, weakness going downhill, and ultrasound or response to diagnostic injection. ## Treatment Rest, anti-inflammatories, physiotherapy, and ultrasound-guided injection when indicated. ## Recovery and Prognosis Generally good for muscle strain with appropriate rehabilitation. ## Prevention Gradual conditioning and attention to footing.
deep thigh pain; stifle extension weakness; lameness worse downhill; response to ultrasound-guided treatment
## Overview Pathology of the deep quadriceps muscles produces thigh pain and weakness of stifle extension. Because of the depth of the muscles, clinical assessment is difficult and ultrasound-guided techniques are often needed for diagnosis and treatment. It is usually part of a broader quadriceps injury rather than an isolated problem. ## Causes Strain from slipping, sudden effort, or compensatory overload. ## Diagnosis Pain on deep palpation, weakness going downhill, and ultrasound or response to diagnostic injection. ## Treatment Rest, anti-inflammatories, physiotherapy, and ultrasound-guided injection when indicated. ## Recovery and Prognosis Generally good for muscle strain with appropriate rehabilitation. ## Prevention Gradual conditioning and attention to footing.
deep thigh pain; stifle extension weakness; lameness worse downhill; response to ultrasound-guided treatment