Indian Journal of Orthopaedics

ORIGINAL ARTICLE
Year
: 2019  |  Volume : 53  |  Issue : 6  |  Page : 682--688

Chondromalacia patella among military recruits with anterior knee pain: Prevalence and association with patellofemoral malalignment


Meltem Ozdemir, Rasime Pelin Kavak 
 Department of Radiology, University of Health Sciences, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey

Correspondence Address:
Dr. Meltem Ozdemir
University of Health Sciences, Dışkaı Yıldırım Beyazıt Training and Research Hospital, Department of Radiology, Ziraat Mah, Şehit Ömer Halisdemir Cad. No: 20, Altıdağ/Ankara
Turkey

Background: The aim of this study was to investigate the frequency of chondromalacia patella (CMP) and to evaluate its relation with trochlear morphometric and patellofemoral alignment measurements as well as with edema in superolateral region of Hoffa's fat pad (SHFP) in military recruits with anterior knee pain (AKP). Materials and Methods: Knee magnetic resonance imaging examinations of 288 military recruits with AKP were retrospectively evaluated. Patellar cartilage lesions were graded using modified Noyes system. Quantitative measurements of trochlear morphology (sulcus angle, trochlear sulcus depth, and lateral trochlear inclination [LTI]) and patellofemoral alignment (patellar translation [PT], lateral patellofemoral angle (LPA), Insall-Salvati index, and tibial tuberosity-trochlear groove distance) were made. The SHFP region was assessed for the presence of edema. Mean values of measurements in knees with and without CMP and in knees with early and advanced stage CMP were compared. Results: We found CMP in 169 (58.7%) patients. Patients with CMP demonstrated a significantly greater sulcus angle (P = 0.012), smaller LTI (P = 0.004), greater PT (P = 0.01), smaller LPA (P = 0.036), greater Insall-Salvati ratio (P = 0.034), and higher incidence of SHFP edema (P = 0.001) compared to those without CMP. While none of the measurements were associated with the severity of cartilage damage, the incidence of SHFP edema was significantly correlated with the severity of CMP (P = 0.001). Conclusion: CMP is a common disorder among military recruits with AKP. Patellofemoral malalignment is an important contributory factor in the development of CMP, and the presence of edema in SHFP may be a strong indicator of underlying severe CMP in this population.


How to cite this article:
Ozdemir M, Kavak RP. Chondromalacia patella among military recruits with anterior knee pain: Prevalence and association with patellofemoral malalignment.Indian J Orthop 2019;53:682-688


How to cite this URL:
Ozdemir M, Kavak RP. Chondromalacia patella among military recruits with anterior knee pain: Prevalence and association with patellofemoral malalignment. Indian J Orthop [serial online] 2019 [cited 2019 Nov 22 ];53:682-688
Available from: http://www.ijoonline.com/article.asp?issn=0019-5413;year=2019;volume=53;issue=6;spage=682;epage=688;aulast=Ozdemir;type=0