Snapping knee from biceps femoris tendon A case report

Abstract

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Symptomatic snapping knee from biceps femoris tendon subluxation: an unusual case of lateral pain in a marathon runner

“…Hernandez et al [16] and Lokiec et al [17] reported a case similar to ours of biceps femoris tendon subluxation secondary to anomalous insertion into the anterolateral aspect of the proximal tibia, with sliding over the fibular head; resolution was obtained by tendon reinsertion with transosseous sutures. Another similar case was described by Kristensen et al [12], but in their case, symptom resolution was achieved by resecting the lateral portion of the fibular head. Bansal et al [18] described the onset of snapping biceps femoris in a patient following a soccer injury.…”

“…The differential diagnosis includes iliotibial-band friction syndrome [6], discoid lateral meniscus [7], intra-articular loose body, synovial plicae [8], congenital snapping knee [9], and patellar dysplasia [10]. Subluxation of the gracilis and semitendinous tendons [11], biceps femoris [12–14], and popliteus tendons [15] is another cause.…”

Anomalous Biceps Femoris Tendon Insertion Leading to a Snapping Knee in a Young Male

“…Snapping biceps femoris tendon, though being a rare phenomenon, is not alien to clinical literature1–9). The reported causes for this manifestation are varied, ranging from anomalous tendon anatomy1–9) to trauma7).…”

Tibial insertion of the biceps femoris tendon: Anatomical and radiological description of an anatomical variant

“…Although anatomical variations are known, a pure insertion upon the anterolateral aspect of the proximal tibia has been described only three times in the literature as single case reports (Kristensen et al, 1989;Hernandez et al, 1996;Bagchi and Grelsamer, 2003). All three patients presented with a painful ''snapping knee.''…”

“…All three patients presented with a painful ''snapping knee.'' Magnetic resonance imaging (MRI) investigations did not demonstrate the tibial insertion of the biceps in any of these cases; this was only diagnosed intraoperatively, as all three patients underwent surgical interventions to address persistent symptoms (Kristensen et al, 1989;Hernandez et al, 1996;Bagchi and Grelsamer, 2003).…”