The influence of posterior tibial slope on the mid-term clinical effect of medial-pivot knee prosthesis
Abstract Objective To evaluate the effect of posterior tibial slope (PTS) on the mid-term clinical outcome following a medial-pivot (MP) prosthesis. Method Two hundred thirty-three patients from The Affiliated Hospital of Qingdao University, who had undergone a total knee arthroplasty (TKA) with MP...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2021-09-01
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| Series: | Journal of Orthopaedic Surgery and Research |
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| Online Access: | https://doi.org/10.1186/s13018-021-02704-y |
| _version_ | 1817994436068507648 |
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| author | Weipeng Shi Yaping Jiang Xuan Zhao Haining Zhang Yingzhen Wang Tao Li |
| author_facet | Weipeng Shi Yaping Jiang Xuan Zhao Haining Zhang Yingzhen Wang Tao Li |
| author_sort | Weipeng Shi |
| collection | DOAJ |
| description | Abstract Objective To evaluate the effect of posterior tibial slope (PTS) on the mid-term clinical outcome following a medial-pivot (MP) prosthesis. Method Two hundred thirty-three patients from The Affiliated Hospital of Qingdao University, who had undergone a total knee arthroplasty (TKA) with MP prosthesis between January 2015 and December 2015, were retrospectively included in this study. They were divided into 3 groups according to postoperative PTS: A ≤ 5°; B 5-7°; and C ≥ 7°. Multiple assessments were made on the patient postoperatively and recorded in the three groups, the measurements of this study included: the range of motion (ROM), knee scoring system (KSS), Western Ontario and McMaster universities osteoarthritis index (WOMAC), posterior condylar offset (PCO), joint line height, and postoperative complications. Results The average post-operative ROM for groups B and C were 108° and 110° respectively; this was significantly higher than that of group A (98°, P < 0.001). The WOMAC scores of patients in group C were significantly lower than those in groups A and B (P < 0.05). However, there were no significant differences in KSS, PCO, and joint line height among the 3 groups (P > 0.05). Only 2 cases of postoperative complications occurred in group C, these were ameliorated after operation. Conclusion With an increase to PTS, the postoperative ROM can be significantly increased for the patient. However, the knee joint function will not be significantly improved, and the stability of knee joint will not be affected when within the limits of appropriate PTS. |
| first_indexed | 2024-04-14T01:52:42Z |
| format | Article |
| id | doaj.art-accac78b579b409a965d4bedcbd2b36d |
| institution | Directory Open Access Journal |
| issn | 1749-799X |
| language | English |
| last_indexed | 2024-04-14T01:52:42Z |
| publishDate | 2021-09-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Orthopaedic Surgery and Research |
| spelling | doaj.art-accac78b579b409a965d4bedcbd2b36d2022-12-22T02:19:18ZengBMCJournal of Orthopaedic Surgery and Research1749-799X2021-09-011611910.1186/s13018-021-02704-yThe influence of posterior tibial slope on the mid-term clinical effect of medial-pivot knee prosthesisWeipeng Shi0Yaping Jiang1Xuan Zhao2Haining Zhang3Yingzhen Wang4Tao Li5Department of Orthopedic Surgery, The Affiliated Hospital of Qingdao UniversityDepartment of Oral Implantology, The Affiliated Hospital of Qingdao UniversityDepartment of Rheumatism and Immunology, The Affiliated Hospital of Qingdao UniversityDepartment of Orthopedic Surgery, The Affiliated Hospital of Qingdao UniversityDepartment of Orthopedic Surgery, The Affiliated Hospital of Qingdao UniversityDepartment of Orthopedic Surgery, The Affiliated Hospital of Qingdao UniversityAbstract Objective To evaluate the effect of posterior tibial slope (PTS) on the mid-term clinical outcome following a medial-pivot (MP) prosthesis. Method Two hundred thirty-three patients from The Affiliated Hospital of Qingdao University, who had undergone a total knee arthroplasty (TKA) with MP prosthesis between January 2015 and December 2015, were retrospectively included in this study. They were divided into 3 groups according to postoperative PTS: A ≤ 5°; B 5-7°; and C ≥ 7°. Multiple assessments were made on the patient postoperatively and recorded in the three groups, the measurements of this study included: the range of motion (ROM), knee scoring system (KSS), Western Ontario and McMaster universities osteoarthritis index (WOMAC), posterior condylar offset (PCO), joint line height, and postoperative complications. Results The average post-operative ROM for groups B and C were 108° and 110° respectively; this was significantly higher than that of group A (98°, P < 0.001). The WOMAC scores of patients in group C were significantly lower than those in groups A and B (P < 0.05). However, there were no significant differences in KSS, PCO, and joint line height among the 3 groups (P > 0.05). Only 2 cases of postoperative complications occurred in group C, these were ameliorated after operation. Conclusion With an increase to PTS, the postoperative ROM can be significantly increased for the patient. However, the knee joint function will not be significantly improved, and the stability of knee joint will not be affected when within the limits of appropriate PTS.https://doi.org/10.1186/s13018-021-02704-yPosterior tibial slopeMedial-pivot prosthesisMid-termClinical effect |
| spellingShingle | Weipeng Shi Yaping Jiang Xuan Zhao Haining Zhang Yingzhen Wang Tao Li The influence of posterior tibial slope on the mid-term clinical effect of medial-pivot knee prosthesis Journal of Orthopaedic Surgery and Research Posterior tibial slope Medial-pivot prosthesis Mid-term Clinical effect |
| title | The influence of posterior tibial slope on the mid-term clinical effect of medial-pivot knee prosthesis |
| title_full | The influence of posterior tibial slope on the mid-term clinical effect of medial-pivot knee prosthesis |
| title_fullStr | The influence of posterior tibial slope on the mid-term clinical effect of medial-pivot knee prosthesis |
| title_full_unstemmed | The influence of posterior tibial slope on the mid-term clinical effect of medial-pivot knee prosthesis |
| title_short | The influence of posterior tibial slope on the mid-term clinical effect of medial-pivot knee prosthesis |
| title_sort | influence of posterior tibial slope on the mid term clinical effect of medial pivot knee prosthesis |
| topic | Posterior tibial slope Medial-pivot prosthesis Mid-term Clinical effect |
| url | https://doi.org/10.1186/s13018-021-02704-y |
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