Patellar crepitus is a complication of total knee arthroplasty (TKA).The development of patellar crepitus after TKA are related to many factors such as femoral component design, surgical errors, and postoperative patellar baja. However, it is unclear whether patella resurfacing or patella non-resurfacing are associate with patellar crepitus. The primary objective of this study are to compare the prevalence of patellar crepitus and the mean value of vibroacoustic signal between patellar-resurfacing and patellar non-resurfacing in TKA. The secondary objective is to study the association between patellar crepitus and vibroacoustic signal.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
DOUBLE
Enrollment
102
patellar component insert with cement
Navamindradhiraj University
Dusit, Bangkok, Thailand
change of patellar crepitus
patellar crepitus investigate by physical examination
Time frame: pre-op, 3, 6 month
change of mean of vibroacoustic signal
Time frame: pre-op, 3, 6 month
Number of patellar crepitus related to mean of vibroacoustic signal
study the association between patellar crepitus and vibroacoustic signal, patellar crepitus investigate by physical examination and mean of vibroacoustic signal assessed by an acceleration sensor
Time frame: pre-op, 3, 6 month
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