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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

From: A vibration sensor approach to detect intra-articular needle tip placement in the knee joint: a proof-of-concept study

Fig. 2

Ultrasonographic visualization of the needle tip to confirm extra-articular (A) and intra-articular (B) positions. Extra-articular position was defined as the needle tip was at the quadriceps tendon. For intra-articular position, the needle tip was in the intra-articular space beneath the quadriceps tendon and above the articular cartilage of lateral femoral condyle

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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