Massoni Carlo1, Casciano Eduardo2, Basile Attilio3, Zanini Antonio4, Bettinsoli Pierfrancesco5, Marconi Alessandro6, Maiotti Marco1, Russo Raffaele7, Amato Massimiliano8, Santoro Giuseppe8, Marco Spoliti3, Riccardo Maria Lanzetti9. 1. Orthopedics and Traumatology Unit, "PIO XI" Hospital, Rome, Italy. 2. Department of Orthopedics, University Federico II, Naples, Italy. 3. Orthopaedics and Traumatology Unit, Department Emergency and Acceptance, San Camillo Forlanini Hospital, Rome, Italy. 4. Orthopedics and Traumatology Unit, "San Clemente" Hospital, Mantua, Italy. 5. Orthopedics and Traumatology Unit, "Sant'Anna" Hospital, Brescia, Italy. 6. Orthopedics and Traumatology Unit, "Nuova Itor" Hospital, Rome, Italy. 7. Orthopedics and Traumatology Unit, "Pineta Grande" Hospital, Castelvolturno, Italy. 8. Orthopedics and Traumatology Unit, "Mediterranea" Hospital, Naples, Italy. 9. Orthopaedics and Traumatology Unit, Department Emergency and Acceptance, San Camillo Forlanini Hospital, Rome, Italy. riccardolanzetti@gmail.com.
Abstract
PURPOSE: The purpose of our study was to evaluate clinical outcomes and return to sports after medial unicompartmental knee arthroplasty (UKA) in middle-aged active patients with concomitant patella-femoral joint (PFJ) osteoarthritis at time of surgery. METHODS: One-hundred and fifty-one patients who underwent medial fixed-bearing cemented UKA, between 2012 and 2015, for medial unicompartmental osteoarthritis of the knee, were retrospectively reviewed with a minimum 5-year follow-up. The mean age at surgery was 54.3 years (range 47 to 60 years). Radiological evaluation of patella-femoral joint (PFJ) osteoarthritis was performed according to Sperner classification to select a control-group (< grade III) and case-group (≥ grade III). The visual analog scale (VAS) for pain and Knee Society score (KSS) was used to evaluate preoperative and final outcomes. Physical activity level before and after the surgery was assessed by the use of UCLA score. RESULTS: One-hundred and thirty-seven patients (89 males and 48 females) were available at last follow-up. The mean follow-up was 6.2 years (range 5.2 to 7.5 years). At last follow-up improvements of VAS and KSS scores revealed not significant correlation with PFJ osteoarthritis. The majority of patients (87.7%) returned to their sports activity after UKA surgery. CONCLUSIONS: Improved quality of life and sports activity level resulted in middle-aged, active patients after UKAs. PFJ osteoarthritis showed no significant correlation with poorer outcomes at 5-year follow-up. LEVEL OF EVIDENCE: III, multicenter retrospective cohort study.
PURPOSE: The purpose of our study was to evaluate clinical outcomes and return to sports after medial unicompartmental knee arthroplasty (UKA) in middle-aged active patients with concomitant patella-femoral joint (PFJ) osteoarthritis at time of surgery. METHODS: One-hundred and fifty-one patients who underwent medial fixed-bearing cemented UKA, between 2012 and 2015, for medial unicompartmental osteoarthritis of the knee, were retrospectively reviewed with a minimum 5-year follow-up. The mean age at surgery was 54.3 years (range 47 to 60 years). Radiological evaluation of patella-femoral joint (PFJ) osteoarthritis was performed according to Sperner classification to select a control-group (< grade III) and case-group (≥ grade III). The visual analog scale (VAS) for pain and Knee Society score (KSS) was used to evaluate preoperative and final outcomes. Physical activity level before and after the surgery was assessed by the use of UCLA score. RESULTS: One-hundred and thirty-seven patients (89 males and 48 females) were available at last follow-up. The mean follow-up was 6.2 years (range 5.2 to 7.5 years). At last follow-up improvements of VAS and KSS scores revealed not significant correlation with PFJ osteoarthritis. The majority of patients (87.7%) returned to their sports activity after UKA surgery. CONCLUSIONS: Improved quality of life and sports activity level resulted in middle-aged, active patients after UKAs. PFJ osteoarthritis showed no significant correlation with poorer outcomes at 5-year follow-up. LEVEL OF EVIDENCE: III, multicenter retrospective cohort study.
Authors: Matthias F Pietschmann; Lisa Wohlleb; Patrick Weber; Florian Schmidutz; Andreas Ficklscherer; Mehmet F Gülecyüz; Elem Safi; Thomas R Niethammer; Volkmar Jansson; Peter E Müller Journal: Int Orthop Date: 2012-11-23 Impact factor: 3.075