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Stiffness after unicompartmental knee arthroplasty: Risk factors and arthroscopic treatment
- Source :
- SICOT-J, SICOT-J, Vol 7, p 35 (2021)
- Publication Year :
- 2021
-
Abstract
- Introduction: One of the principal complications after total knee arthroplasty (TKA) is stiffness. There are no publications concerning stiffness after unicompartmental knee arthroplasty (UKA). Study objectives were to describe the incidence of stiffness after UKA, to look for risk factors, and to describe safe and effective arthroscopic treatment. Methods: There were 240 UKA performed between March 2016 and January 2019 included. Robotic-assisted surgery was performed in 164 patients and mechanical instrumentation in 76 patients. Stiffness was defined as flexion < 90° or a flexion contracture > 10° during the first 45 post-operative days. Patients with stiffness were treated with arthroscopic arthrolysis. Several factors were studied to look for risk factors of stiffness: body mass index, gender, age, mechanical or robotic instrumentation, preoperative flexion, previous meniscectomy, and anticoagulant treatment. Arthrolysis effectiveness was evaluated by flexion improvement and UKA revision rate. Results: 22 patients (9%) developed stiffness. Mechanical instrumentation significantly increased the risk of stiffness with OR = 0.26 and p = 0.005. Robotic-assisted surgery decreased the risk of stiffness by five-fold. Before arthrolysis, mean knee flexion was 79°, versus 121° (53% improvement) after arthroscopic arthrolysis. Only 2 patients (9%) underwent UKA revision after arthrolysis. Discussion: Stiffness after UKA is an important complication with an incidence of 9% in this study. Arthroscopic arthrolysis is a safe and effective treatment with a range of motion improvement of > 50%. Robotic-assisted surgery significantly decreases the risk of postoperative stiffness. Level of evidence: Level III, therapeutic study, retrospective cohort study
- Subjects :
- musculoskeletal diseases
medicine.medical_specialty
animal structures
medicine.medical_treatment
Total knee arthroplasty
Arthroscopic treatment
Stiffness
03 medical and health sciences
0302 clinical medicine
Arthrolysis
medicine
Orthopedics and Sports Medicine
Revision rate
Knee
Unicompartmental knee arthroplasty
Orthopedic surgery
030222 orthopedics
business.industry
Unicompartmental Knee Arthroplasty
UKA
technology, industry, and agriculture
Retrospective cohort study
030229 sport sciences
musculoskeletal system
Surgery
body regions
Anticoagulant therapy
Original Article
medicine.symptom
Complication
business
Range of motion
RD701-811
Subjects
Details
- ISSN :
- 24268887
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- SICOT-J
- Accession number :
- edsair.doi.dedup.....2eef3ceb8a2b850dbac0f8f14c9dae30