2017 ISAKOS Biennial Congress ePoster #1279

Mid Term Results Of Patellofemoral Arthroplasty Using Journey ® Prosthesis

Ram Mohan Raghavendra, MBBS, MS(orthopaedics), Bridgend, glamorgan UNITED KINGDOM
Paul Lee, FRCS (Ortho), MFSEM, MSc, PhD,, Cardiff UNITED KINGDOM
Amit Pramod Chandratreya, FRCS(Tr & Orth),MS(Orth),MCh(Orth), Cardiff, South Glamorgan UNITED KINGDOM

Princess of Wales Hospital, Abertawe Bro Morgannwg University Health Board, bridgend, Glamorgan, UNITED KINGDOM

FDA Status Cleared

Summary

Patellofemoral arthroplasty using Journey ® (smith & Nephew, Memphis, TN , USA) Prosthesis in 91 knees (69 patients) with mean follow up of 4.87 years resulted in a 7 year cumulative survival of 92.0% with only three knees undergoing revision to total knee replacement.

Abstract

Problem : Patellofemoral arthroplasty for isolated patellofemoral arthritis is still under debate.

Aim : To evaluate the Mid term results of patients undergoing the Journey ® (smith & Nephew, Memphis, TN , USA) Patello-femoral arthroplasty.

Implant : Second generation, onlay type, asymmetric femoral component

Methodology

Study involved a continuous retrospective cohort of 69 patients who underwent patellofemoral arthroplasty using Journey ® prosthesis, all performed by a single surgeon between June 2007 and November 2014. eight patients had simultaneous bilateral surgeries. A total of 91 knees were followed up. All patients were under regular follow up and no patient was lost to follow up. Pre and post operative comparison were made using functional outcome measures : Kujala score, Bartlett score, Modified Tegner activity rating scale, Oxford Knee score and Lysholm score. Mean age at the time of the surgery was 59.21 years (Range 42-78 years); The mean follow up was 4.87 years (Range: 1.6 – 9.56 years). There were statistically significant improvements in functional outcome scores There were no deep infections, DVT or PE. Three knees were revised to total knee replacement. First revision was because of persistent patellar maltracking, second and third was because of persistent pain. Three patients required a further medial reefing and lateral release for clunking and patellar maltracking. The 7-year cumulative survival estimated by the Kaplan-Meier method is 92.0% (95% CI : 80.6-100%).

Conclusion

Our study reveals that the mid term results following journey® Patellofemoral arthroplasty are very promising in carefully selected group of patients with isolated patello-femoral degenerative disease.