Scott J Luhmann1, Perry L Schoenecker, Matthew B Dobbs, J Eric Gordon. 1. Department of Orthopaedic Surgery, Shriner's Hospital for Children, St Louis Children's Hospital, Washington University School of Medicine, 660 S. Euclid Ave., Campus Box 8233, St Louis, 63110, MO, USA, scrogginsn@wudosis.wustl.edu.
Abstract
PURPOSE: The purpose of this study is to define the clinical presentation of adolescent patellofemoral pain. METHODS: A review was completed of all patients with patellofemoral pain at a children's hospital sports clinic over a 3-year period. RESULTS: One hundred and one patients (91 female) with 136 symptomatic knees were identified. Mean age was 14.4 years. Knee pain was localized to the anteromedial or anterior region of the knee in 96% of patients and was typically produced with running (94%), jumping (92%) and stair use (69%). On physical examination there was usually a non antalgic gait (99%), no patellofemoral crepitation (98%), normal lower extremity angular (84%) and rotational alignment (94%), with no foot malalignment (>97%). The medial patellofemoral ligament (MPFL) was the most palpably tender area of the knee in 98% of patients. During "lateral apprehension" testing, 89% had pain at the MPFL, but not true apprehension. A "J-sign" was present at terminal knee extension in 65%. Mean Q-angle was 18.7 degrees . Means of all radiographic measures were within normal ranges. CONCLUSION: The prototypical patient had anterior/anteromedial knee pain of insidious onset during running and jumping. The most consistent physical findings were focal tenderness at the MPFL, positive terminal J-sign, and an elevated Q-angle. Most patients required only nonsurgical treatments, but 18% underwent surgical interventions for persistent pain.
PURPOSE: The purpose of this study is to define the clinical presentation of adolescent patellofemoral pain. METHODS: A review was completed of all patients with patellofemoral pain at a children's hospital sports clinic over a 3-year period. RESULTS: One hundred and one patients (91 female) with 136 symptomatic knees were identified. Mean age was 14.4 years. Knee pain was localized to the anteromedial or anterior region of the knee in 96% of patients and was typically produced with running (94%), jumping (92%) and stair use (69%). On physical examination there was usually a non antalgic gait (99%), no patellofemoral crepitation (98%), normal lower extremity angular (84%) and rotational alignment (94%), with no foot malalignment (>97%). The medial patellofemoral ligament (MPFL) was the most palpably tender area of the knee in 98% of patients. During "lateral apprehension" testing, 89% had pain at the MPFL, but not true apprehension. A "J-sign" was present at terminal knee extension in 65%. Mean Q-angle was 18.7 degrees . Means of all radiographic measures were within normal ranges. CONCLUSION: The prototypical patient had anterior/anteromedial knee pain of insidious onset during running and jumping. The most consistent physical findings were focal tenderness at the MPFL, positive terminal J-sign, and an elevated Q-angle. Most patients required only nonsurgical treatments, but 18% underwent surgical interventions for persistent pain.
Authors: Gideon Regalado; Hannu Lintula; Matti Eskelinen; Hannu Kokki; Heikki Kröger; Erkki Svedström; Tero Vahlberg; Urho Väätäinen Journal: Knee Surg Sports Traumatol Arthrosc Date: 2013-09-18 Impact factor: 4.342
Authors: Benjamin E Smith; James Selfe; Damian Thacker; Paul Hendrick; Marcus Bateman; Fiona Moffatt; Michael Skovdal Rathleff; Toby O Smith; Pip Logan Journal: PLoS One Date: 2018-01-11 Impact factor: 3.240
Authors: Benjamin E Smith; Paul Hendrick; Marcus Bateman; Fiona Moffatt; Michael Skovdal Rathleff; James Selfe; Toby O Smith; Pip Logan Journal: Pilot Feasibility Stud Date: 2017-07-20