The Results of Oxford Unicompartmental Knee Arthroplasty in Patients With and Without Preoperative Genu Recurvatum

NCT02854189 | Completed DMC

• 1 other identifier: MTU-EC-OT-0-051/59
• Study Type: interventional
• Target: 104
• Locations: 0 countries
• Sites: N/A

Brief Summary

The purpose of this study is to explore the effects of the Oxford unicompartmental knee arthroplasty on two groups of patients, namely one with genu recurvatum before the procedure and one without. Specifically, this study compare the number of occurrences of postoperative genu recurvatum and the postoperative hyperextension angles among the patients. Additionally, the knee scores, the pain scores, and the functional scores for the two groups of patients are compared. Materials and methods: This study prospectively followed 104 patients (114 knees) who had been treated with cemented minimally invasive surgery unicompartmental knee arthroplasty and had had a minimum of 24 months of follow-up. The patients were divided into two groups: those without preoperative genu recurvatum (85 patients; 94 knees) and those with preoperative genu recurvatum (19 patients; 20 knees). The incidence of the postoperative genu recurvatum, the postoperative hyperextension angles, the knee scores, the pain scores, and the functional scores were recorded and compared between two groups..

Conditions

Primary Gonarthrosis; Genu Recurvatum

Outcome Measures

Primary Outcomes (1)

• hyperextension angle, the incidence of postoperative genu recurvatum

  hyperextension angle, the incidence of postoperative genu recurvatum

  2 years

Study Arms (2)

patients with genu recurvatum

OTHER

The medial osteoarthritis knees with genu recurvatum were included in this study. Patients had been treated with cemented minimally invasive surgery Oxford unicompartmental knee arthroplasty and had had a minimum of 24 months of follow-up.The incidence of postoperative genu recurvatum, postoperative hyperextension angle, and the knee society score were recorded.

Device: Oxford unicompartmental knee arthroplasty

patients without genu recurvatum

OTHER

The medial osteoarthritis knees without genu recurvatum were included in this study. Patients had been treated with cemented minimally invasive surgery Oxford unicompartmental knee arthroplasty and had had a minimum of 24 months of follow-up.The incidence of postoperative genu recurvatum, postoperative hyperextension angle, and the knee society score were recorded.

Device: Oxford unicompartmental knee arthroplasty

Interventions

Oxford unicompartmental knee arthroplasty DEVICE

The Oxford unicompartmental knee arthroplasty was applied in all patients with medial osteoarthritis knee.The Oxford unicompartmental knee arthroplasty is mobile bearing unicompartmental knee arthroplasty.

patients with genu recurvatum; patients without genu recurvatum

Eligibility Criteria

• Age: 40 Years - 90 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• The medial OA knee with older than 40 years of age, ROM greater than 90°, varus deformity less than 25°, and flexion contractures less than 20°

You may not qualify if:

• patients who were diagnosed spontaneous osteonecrosis of knee (SPONK), patients with intraoperative ACL insufficiency, post traumatic arthritis, gouty arthritis, inflammatory joints.

Sponsors & Collaborators

• Thammasat University: lead

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NON RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal investigator

Study Record Dates

• First Submitted: June 6, 2016
• First Posted: August 3, 2016
• Study Start: January 1, 2011
• Primary Completion: April 1, 2013
• Study Completion: April 1, 2015
• Last Updated: June 4, 2020

Record last verified: 2016-07

Data Sharing

• IPD Sharing: Will not share