Journal of Research in Orthopedic Science
1
J. Res. Orthop. Sci.
Medical Sciences
http://jros.iums.ac.ir
1
admin
2676-7031
2676-7031
8
7
14
8888
13
en
jalali
1398
8
1
gregorian
2019
11
1
6
4
online
1
fulltext
en
Preoperative Clinical Correctability and Prediction of the Prosthesis Type in Total Knee Arthroplasty for Severe Osteoarthritic Varus Deformity
جراحی زانو
Knee surgery
پژوهشی
Research Article
<div style="text-align: justify;"><strong>Background:</strong> The preoperative identification of patients who might need constrained condylar knee (CCK) prosthesis in total knee arthroplasty (TKA), is essential to ensure the availability of equipment and to address the patients’ expectations accurately. <br>
Objectives: In this study, we aimed at investigating if the preoperative features of the patients can provide this data.<br>
<strong>Methods:</strong> A total of 30 patients who underwent primary TKA for severe osteoarthritic genu varum deformity (varus angle ≥20º) were evaluated in this retrospective study. Prosthesis selection was based on preoperative and intraoperative information. Demographic data, preoperative correctability of the deformity, and intraoperative information, including the reduction osteotomy, soft-tissue release, and pie-crust technique, were retrospectively collected. Soft-tissue release was performed in a sequential manner in 3 steps.<br>
<strong>Results:</strong> The study population included 4 males and 26 females with a mean±SD age of 64.6±8.7 years. A CCK prosthesis was used in 11 (36.7%) cases. A significant association was found between the preoperative correctability and the type of prosthesis. In other words, all CCK prostheses were used in patients who were preoperatively non-correctable (P<0.001). Also, the step of release was significantly associated with the type of prosthesis, and CCK prosthesis was used in all patients with step 3 release (P<0.001). Preoperative correctability was significantly related to the step of release, as well. It means that all deformities with step 3 release were preoperatively non-correctable (P=0.008).<br>
<strong>Conclusion:</strong> The preoperative clinical evaluation of correctability could be used in the identification of patients who might need a CCK prosthesis.</div>
Severe genu varum deformity, Total knee arthroplasty, Constrained condylar knee prosthesis
1
6
http://jros.iums.ac.ir/browse.php?a_code=A-10-41-58&slc_lang=en&sid=1
Omid
Shahpari
shahpario@mums.ac.ir
1289058709
10031947532846003771
No
Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran.
Abolfazl
Bagherifard
bagherifd@gmail.com
10031947532846003772
10031947532846003772
No
Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran.
Mahmoud
Jabalameli
jabalamelimd@yahoo.com
10031947532846003773
10031947532846003773
No
Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran.
Mohammad
Rahbar
kourosh.rahbar@yahoo.com
10031947532846003774
10031947532846003774
No
Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran.
Hossein
Hajitaghi
hosseinhajitaghihh@gmail.com
0381795217
10031947532846003775
Yes
Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran.