Secondary patellar resurfacing following total knee arthroplasty: A cohort study in fifty eight knees with a mean follow-up of thirty one months

Purpose If anterior knee pain (AKP) emerges or persists following total knee arthroplasty (TKA), secondary patellar resurfacing (SPR) may offer relief of AKP. The purpose of our study was to evaluate the mid-term clinical outcomes after secondary patellar resurfacing for persistent AKP. Secondary ob...

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Bibliographic Details
Published in:International orthopaedics 2015-07, Vol.39 (7), p.1301-1306
Main Authors: Scheurer, Philip, Reininga, Inge H. F., van Jonbergen, Hans-Peter W., van Raay, Jos J. A. M.
Format: Article
Language:English
Subjects:
Aged
Arthroplasty, Replacement, Knee - adverse effects
Arthroplasty, Replacement, Knee - methods
Cohort Studies
Female
Follow-Up Studies
Humans
Knee Joint - diagnostic imaging
Knee Joint - surgery
Male
Medicine
Medicine & Public Health
Middle Aged
Original Paper
Orthopedics
Osteoarthritis, Knee - surgery
Patella - surgery
Patient Satisfaction
Radiography
Radionuclide Imaging
Treatment Outcome
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Summary:Purpose If anterior knee pain (AKP) emerges or persists following total knee arthroplasty (TKA), secondary patellar resurfacing (SPR) may offer relief of AKP. The purpose of our study was to evaluate the mid-term clinical outcomes after secondary patellar resurfacing for persistent AKP. Secondary objectives were to correlate surgical outcomes with clinical and radiological parameters including 99 m-technetium bone scintigraphy. Methods In this study, 57 patients (58 knees, 51 women and 6 men) with a mean age of 70 years at the time of SPR were included. Patients were asked about their satisfaction regarding the outcome of the procedure. Patellar position was assessed by axial radiographs, and we reassessed the preoperatively performed bone scintigraphy. Results After a median follow-up of 31 (6–76) months, 42 patients (43 knees) were satisfied and 15 were dissatisfied regarding the outcome of the procedure. Dissatisfied patients had more often a shorter time interval between TKA and SPR, patellar tilt on axial radiographs, and a ‘hot’ bone scan. Conclusion In patients with persistent AKP following TKR, secondary resurfacing leads to patient satisfaction in a relatively large number of patients. Better results were seen in patients without tilting of the patella. The added value of a bone scan as an indicator to perform SPR is not clarified in the present study.
ISSN:0341-2695
1432-5195
DOI:10.1007/s00264-015-2684-z