Snapping Pes Syndrome in a Pediatric Athlete

Hearing and Seeing Nerve/Tendon Snapping: A Systematic Review on Dynamic Ultrasound Examination

“…For example, biceps femoris snapping usually is shown as a jerky movement of the tendon over the fibular head during knee extension at 90° [ 1 , 91 ]. Magnetic resonance imaging is usually normal in this particular snapping, or may only show a predisposing factor [ 70 , 93 ]. There could possibly be a cord-like anterior arm of the biceps femoris tendon that separates from the direct arm of the tendon 3–4 cm above its insertion [ 1 , 91 ].…”

“…Regarding tendon snapping, several factors such as a conflict with bony structures, other tendons (intersection), retinacula and thickened pulleys, or instability caused by the rupture of retinacula, have been reported [1]. The iliopsoas tendon was the most commonplace (37.5%), in which hip flexion/extension, rotation and abduction were used to induce snapping [50][51][52]64,75,76,[79][80][81]93]. Moreover, distal biceps brachii and brachialis tendon snappings [49] were described to ensue (during elbow flexion/extension) over the trochlea.…”

Snapping Knee after Total Knee Arthroplasty

“…There are four medial knee SPS case series reported in the literature and the authors couldn't identify the etiology of 7 patients [1, [3][4][5]. The authors have theorized that this condition may result from a congenital malformationl or degradation of the accessory tendinous expansions of the semitendinosus.…”

“…The authors have theorized that this condition may result from a congenital malformationl or degradation of the accessory tendinous expansions of the semitendinosus. One of patient had a trauma incident of 9 months [3], one case had a loose bone [6] and the other had osteochondroma on the medial side of the knee [7]. Both cases were resolved after the resection.…”

“…Several cases of snapping in the medial knee, defined as snapping pes syndrome (SPS), reported in the literature [1][2][3][4][5][6][7][8], but there is only one case which is after total knee arthroplasty (TKA) and treated with revision [2]. In this case report, we present the second case of SPS after TKA and treated with a different method rather than the revision.…”