Research Article
Volume 11 Issue 10 - 2020
Comparison of Clinical Outcomes between Patella Resurfacing Versus Non-Resurfacing in Primary Total Knee Arthroplasty-A Prospective Study of 360 Cases
Hossein Alemzadeh1* and Mahsan Kashef2
11Orthopedic Ward, Shahid Beheshti Hospital, School of Medicine, Azad University, Shiraz, Iran
12Orthopedic Ward, Ordibehesht Hospital, School of Medicine, Azad University, Shiraz, Iran
*Corresponding Author: Hossein Alemzadeh, Orthopedic Ward, Shahid Beheshti Hospital, School of Medicine, Azad University, Shiraz, Iran.
Received: February 26, 2020; Published: September 30, 2020




Abstract

Background/Aim: To compare clinical outcomes between patellar resurfacing and nonresurfacing in total knee arthroplasty (TKA).

Materials and Methods: Data from osteoarthritis patients who underwent TKA and were followed up for ≥ 4.5 years were analysed retrospectively. Patients were divided into two groups: patellar nonresurfacing group and patellar resurfacing group. In the Nonresurfacing group, the partial lateral facet of the patella was removed, the patella was reshaped to match the trochlea of the femoral prosthesis and circumpatellar denervation was performed. In the resurfacing group, the patella was resurfaced with a cemented component. Clinical outcomes included incidence of anterior knee pain, Knee Society Score, patient satisfaction, revision rate and radiographic findings. Fisher’s exact test was used to assess nominal data including the incidence of AKP, patient satisfaction score, and revision rate. P values < 0.05 were considered to be statistically significant.

Results: Totally 360 patients were evaluated including 198 cases assigned to the nonresurfacing group and 162 to the resurfacing group. Mean age of two groups had statistically significant difference but BMI showed not to be statistically significant different between two groups. There was significant difference between two groups for measured clinical outcomes such as Oxford Knee Score (OKS). Clinical outcomes for patellar nonresurfacing, including patelloplasty and circumpatellar denervation, showed to be different to those for patellar resurfacing, in TKA.

Conclusion: Patellar nonresurfacing (including removal of patellar osteophytes, patellar partial lateral facetectomy and circumpatellar denervation) can obtain satisfactory outcomes in TKA. In addition, patellar nonresurfacing can easily be converted to patellar replacement, if AKP cases.

Keywords: Patellar Resurfacing; Nonresurfacing; Total Knee Arthroplasty

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Citation: Hossein Alemzadeh and Mahsan Kashef. “Comparison of Clinical Outcomes between Patella Resurfacing Versus Non- Resurfacing in Primary Total Knee Arthroplasty-A Prospective Study of 360 Cases”. EC Orthopaedics 11.10 (2020): 13-19.

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