CONTEXT: Predicting when an athlete can return to sport after muscle injury is a major concern. OBJECTIVE: To determine whether combining objective clinical and ultrasound findings at presentation accurately predicted time to sport resumption in athletes with muscle injuries. DESIGN: Cohort study. SETTING: Sports medicine clinic. PATIENTS OR OTHER PARTICIPANTS: A total of 93 consecutive patients, 87 male and 6 female, were seen over a 1-year period for sudden-onset muscle pain while engaging in a sporting activity within the last 5 days and inability to continue the training session or game. INTERVENTION(S): Standardized physical examination and sonogram. MAIN OUTCOME MEASURE(S): Statistical associations between clinical and sonographic features at presentation and time to sport resumption (<40 days or ≥ 40 days) were evaluated using multivariate models. Correlations between time to sport resumption predicted by a sports medicine specialist and actual time to sport resumption were evaluated using the Spearman rank correlation coefficient. RESULTS: The 93 patients had 95 injuries, caused by muscle contraction in 86 cases and impact in 9 cases. Only 7 injuries had normal sonogram findings. Late sport resumption was associated with 4 clinical criteria (bruising, tenderness to palpation, range-of-motion limitation compared with the other limb, and increased pain with isometric contraction during passive limb straightening) and 4 sonographic criteria (disorganized fibrous tissue, intramuscular hematoma, intermuscular hematoma, and power Doppler signal). The Spearman rank correlation coefficient between predicted and actual times was 0.669 (P < .0001) for mild exercise resumption and 0.804 (P < .0001) for full sport resumption. CONCLUSION: A combination of physical and sonographic data collected during the acute phase of sport-related muscle injury was effective in predicting time to sport resumption.
CONTEXT: Predicting when an athlete can return to sport after muscle injury is a major concern. OBJECTIVE: To determine whether combining objective clinical and ultrasound findings at presentation accurately predicted time to sport resumption in athletes with muscle injuries. DESIGN: Cohort study. SETTING: Sports medicine clinic. PATIENTS OR OTHER PARTICIPANTS: A total of 93 consecutive patients, 87 male and 6 female, were seen over a 1-year period for sudden-onset muscle pain while engaging in a sporting activity within the last 5 days and inability to continue the training session or game. INTERVENTION(S): Standardized physical examination and sonogram. MAIN OUTCOME MEASURE(S): Statistical associations between clinical and sonographic features at presentation and time to sport resumption (<40 days or ≥ 40 days) were evaluated using multivariate models. Correlations between time to sport resumption predicted by a sports medicine specialist and actual time to sport resumption were evaluated using the Spearman rank correlation coefficient. RESULTS: The 93 patients had 95 injuries, caused by muscle contraction in 86 cases and impact in 9 cases. Only 7 injuries had normal sonogram findings. Late sport resumption was associated with 4 clinical criteria (bruising, tenderness to palpation, range-of-motion limitation compared with the other limb, and increased pain with isometric contraction during passive limb straightening) and 4 sonographic criteria (disorganized fibrous tissue, intramuscular hematoma, intermuscular hematoma, and power Doppler signal). The Spearman rank correlation coefficient between predicted and actual times was 0.669 (P < .0001) for mild exercise resumption and 0.804 (P < .0001) for full sport resumption. CONCLUSION: A combination of physical and sonographic data collected during the acute phase of sport-related muscle injury was effective in predicting time to sport resumption.
Authors: Geoffrey M Verrall; John P Slavotinek; Peter G Barnes; Gerald T Fon; Adrian Esterman Journal: J Orthop Sports Phys Ther Date: 2006-04 Impact factor: 4.751
Authors: Tero A H Järvinen; Teppo L N Järvinen; Minna Kääriäinen; Ville Aärimaa; Samuli Vaittinen; Hannu Kalimo; Markku Järvinen Journal: Best Pract Res Clin Rheumatol Date: 2007-04 Impact factor: 4.098
Authors: T Hotfiel; R Seil; W Bily; W Bloch; A Gokeler; R M Krifter; F Mayer; P Ueblacker; L Weisskopf; M Engelhardt Journal: J Exp Orthop Date: 2018-06-22