Abstract
Step aerobics is one of the most popular exercises with established benefits to cardiovascular status. This activity is associated with injuries which include patellar or talar chondral lesions, quadriceps tendinopathy, Achilles tendinopathy or tear, shin splints and muscle soreness. The purpose of this case report is to present two step aerobics athletes, suffering from anterior knee pain. We observed that their knee MR examination disclosed only suprapatellar fat pad edema. No other findings were noticed. In addition, we discuss the possible pathogenetic mechanism of this entity which has not been previously reported in the literature.
[1] Scharff-Olson M, Williford HN, Blessing DL, Brown JA. The physiological effects of bench/step exercise. Sports Med 1996; 21:164–175 http://dx.doi.org/10.2165/00007256-199621030-0000210.2165/00007256-199621030-00002Search in Google Scholar PubMed
[2] Rothenberger LA, Chang JI, Cable TA. Prevalence and types of injuries in aerobic dancers. Am J Sports Med 1988; 16:403–407 http://dx.doi.org/10.1177/03635465880160041710.1177/036354658801600417Search in Google Scholar PubMed
[3] Garrick JG, Gillien DM, Whiteside P. The epidemiology of aerobic dance injuries. Am J Sports Med 1986; 14:67–72 http://dx.doi.org/10.1177/03635465860140011110.1177/036354658601400111Search in Google Scholar PubMed
[4] LLopis E, Padron M. Anterior knee pain. Eur J Radiol 2007; 62: 27–43 http://dx.doi.org/10.1016/j.ejrad.2007.01.01510.1016/j.ejrad.2007.01.015Search in Google Scholar PubMed
[5] Kim Y, Shin H, Yang J, Kim K, Kwon S, Kim J. Prefemoral fat pad: impingement and a mass-like protrusion on the lateral femoral condyle causing mechanical symptoms. A case report. Knee Surg Sports Traumatol Arhtrosc 2007; 15:786–789 http://dx.doi.org/10.1007/s00167-006-0233-410.1007/s00167-006-0233-4Search in Google Scholar PubMed
[6] Shabshin N, Schweitzer M, Morrison W. Quadriceps fat pad edema: significance on magnetic resonance images of the knee. Skeletal Radiol 2006; 35: 269–274 http://dx.doi.org/10.1007/s00256-005-0043-710.1007/s00256-005-0043-7Search in Google Scholar PubMed
[7] Roth Ch, Jacobson J, Jamadar D, Caoil E, Morag Y, Housner J. Quadriceps fat pad signal intensity and enlargement on MRI: Prevalence and Associated Findings. AJR Am J Roentgenol 2004; 182:1383–1387 10.2214/ajr.182.6.1821383Search in Google Scholar PubMed
[8] McNally E. Imaging assessment of anterior knee pain and patellar maltracking. Skeletal Radiol 2001; 30:484–495 http://dx.doi.org/10.1007/s00256010040110.1007/s002560100401Search in Google Scholar PubMed
[9] Schweitzer ME, Falk A, Pathria M, Brahme S, Hodler J, Resnick D. MR imaging of the knee: can changes in the intracapsular fat pads be used as a sign of synovial proliferation in the presence of an effusion? AJR Am J Roentgenol 1993; 160:823–826 10.2214/ajr.160.4.8456672Search in Google Scholar PubMed
[10] Staeubli HU, Bollmann C, Kreutz R, Becker W, Rauschning W. Quantification of intact quadriceps tendon, quadriceps tendon insertion, and suprapatellar fat pad: MR arthrography, anatomy, and cryosections in the sagittal plane. AJR Am J Roentgenol 1999; 173:691–698 10.2214/ajr.173.3.10470905Search in Google Scholar PubMed
[11] Bohnsack M, Meier F, Walter GF, et al. Distribution of substance-P nerves inside the infrapatellar fat pad and the adjacent synovial tissue: a neurohistological approach to anterior knee pain syndrome. Arch Orthop Trauma Surg 2005; 125:592–597 http://dx.doi.org/10.1007/s00402-005-0796-410.1007/s00402-005-0796-4Search in Google Scholar PubMed
[12] Lehner B, Koeck F, Capellino S, Schubert Th, Hofbauer R, Straub R. Preponderance of Sensory Versus Sympathetic Nerve Fibers and Increased Cellularity in the Infrapatellar Fat Pad in Anterior Knee Pain Patients after Primary Arthroplasty. J Orthop Res. 2008; 26:342–350 http://dx.doi.org/10.1002/jor.2049810.1002/jor.20498Search in Google Scholar PubMed
[13] Whitelaw GP, Rullo DJ, Markowitz HD, Marandola MS, DeWaele MJ. A conservative approach to anterior knee pain. Clin OrthopRelat Res 1989; 246:234–237 10.1097/00003086-198909000-00033Search in Google Scholar
© 2012 Versita Warsaw
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
