OBJECTIVE: This study is a statistical analysis to establish whether a correlation exists between the level and degree of rectus femoris (RF) central tendon injury and the amount of time that an athlete is unable to participate subsequently, referred to as "sports participation absence" (SPA). DESIGN: Causal-comparative study. PATIENTS: 35 players from two high-level Spanish soccer teams with an injury to the central tendon of the RF based on clinical and ultrasound criteria. MAIN OUTCOME MEASURE: Ultrasound examination was performed with an 8-2 MHz linear multifrequency transducer. All studies included both longitudinal and transverse RF sections. RESULTS: At the proximal level the SPA time is 45.1 days when the injury length is 4.0 cm. This value increases by 5.3 days with each 1 cm increase in the length of injury. In the case of distal level injury, SPA time is 32.9 days when the injury length is 3.9 cm. This value increases by 3.4 days with each 1 cm increase. In the total representative sample, SPA time when the injury length is 4.2 cm corresponds to 39.1 days. This value increases by 4.2 days per length unit. CONCLUSIONS: RF central tendon injury at the proximal level is associated with a greater SPA time than at the distal level. Patients with a grade II injury have an SPA time longer than those with a grade I injury whether the injury is located proximal or distal.
OBJECTIVE: This study is a statistical analysis to establish whether a correlation exists between the level and degree of rectus femoris (RF) central tendon injury and the amount of time that an athlete is unable to participate subsequently, referred to as "sports participation absence" (SPA). DESIGN: Causal-comparative study. PATIENTS: 35 players from two high-level Spanish soccer teams with an injury to the central tendon of the RF based on clinical and ultrasound criteria. MAIN OUTCOME MEASURE: Ultrasound examination was performed with an 8-2 MHz linear multifrequency transducer. All studies included both longitudinal and transverse RF sections. RESULTS: At the proximal level the SPA time is 45.1 days when the injury length is 4.0 cm. This value increases by 5.3 days with each 1 cm increase in the length of injury. In the case of distal level injury, SPA time is 32.9 days when the injury length is 3.9 cm. This value increases by 3.4 days with each 1 cm increase. In the total representative sample, SPA time when the injury length is 4.2 cm corresponds to 39.1 days. This value increases by 4.2 days per length unit. CONCLUSIONS: RF central tendon injury at the proximal level is associated with a greater SPA time than at the distal level. Patients with a grade II injury have an SPA time longer than those with a grade I injury whether the injury is located proximal or distal.
Authors: Xavier Valle; Eduard Alentorn-Geli; Johannes L Tol; Bruce Hamilton; William E Garrett; Ricard Pruna; Lluís Til; Josep Antoni Gutierrez; Xavier Alomar; Ramón Balius; Nikos Malliaropoulos; Joan Carles Monllau; Rodney Whiteley; Erik Witvrouw; Kristian Samuelsson; Gil Rodas Journal: Sports Med Date: 2017-07 Impact factor: 11.136
Authors: Arnlaug Wangensteen; Ali Guermazi; Johannes L Tol; Frank W Roemer; Bruce Hamilton; Juan-Manuel Alonso; Rodney Whiteley; Roald Bahr Journal: Eur Radiol Date: 2018-02-19 Impact factor: 5.315
Authors: Bruce Hamilton; Xavier Valle; Gil Rodas; Luis Til; Ricard Pruna Grive; Josep Antoni Gutierrez Rincon; Johannes L Tol Journal: Br J Sports Med Date: 2014-11-13 Impact factor: 13.800
Authors: Carles Pedret; Gil Rodas; Ramon Balius; Lluis Capdevila; Mireia Bossy; Robin W M Vernooij; Xavier Alomar Journal: Orthop J Sports Med Date: 2015-07-22