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Said E, Ahmed AM, Addosooki A, Attya HA, Awad AK, Ahmed EH, Tammam H. Comparison of the clinical and radiological outcomes of Puddu and TomoFix plates for medial opening-wedge high tibial osteotomy: A two-year follow-up of a randomized controlled trial. Orthop Traumatol Surg Res 2024:103845. [PMID: 38403264 DOI: 10.1016/j.otsr.2024.103845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 01/25/2024] [Accepted: 02/21/2024] [Indexed: 02/27/2024]
Abstract
PURPOSE Opening-wedge high tibial osteotomy (OWHTO) requires fixation devices for stabilization of the osteotomy gap. The two most commonly used fixation devices are the Puddu and the TomoFix plates. Based on its design, each implant generates a characteristic stability profile. The aim of this randomized controlled trial (RCT) was to investigate the short-term clinical and radiological outcomes of OWHTO using the Puddu and TomoFix plating systems. We hypothesized that the TomoFix plate would achieve superior clinical and radiographic results compared to the Puddu plate. METHODS A total of 60 patients were randomly allocated to undergo OWHTO either using the Puddu plate or the TomoFix plate if conservative treatment failed with symptomatic medial compartment knee osteoarthritis (OA) stage I or II according to Ahlbäck classification, and varus malalignment. All patients underwent clinical and radiological assessment preoperatively, and at 3, 6, 12, and 24months postoperatively. Radiological measurement of the hip-knee-ankle (HKA) angle, and posterior tibial slope (PTS) was performed. Functional assessment was carried out using the Hospital for Special Surgery Knee-Rating Scale (HSS) and the Western Ontario McMaster Universities (WOMAC) Osteoarthritis Index. Patients were also evaluated for intraoperative and postoperative complications throughout the follow-up period. RESULTS The mean angular correction was 9.6±4°, and 10.5±4.8° in the Puddu and TomoFix groups, respectively (p=0.488). The mean PTS change was significantly higher in the Puddu group (3.4±1.1°) compared to the TomoFix group (0.8±0.7°) (p<0.001). There was a statistically significant improvement in the mean HSS and WOMAC in both groups until one year postoperatively. Neither HSS nor WOMAC showed a statistically significant difference between the Puddu and TomoFix groups at any time during the first two postoperative years. The overall complication rate was not significantly different between the Puddu and TomoFix groups. However, the TomoFix group demonstrated higher incidence of symptomatic hardware (23% vs. 3.3%) and removal of metalwork (17% vs. 0%) than the Puddu group (p=0.023 and 0.020, respectively). CONCLUSION This RCT suggests that the implant choice for OWHTO has no significant impact on functional outcomes during the first 2years postoperatively. While the Puddu plate was associated with an unintentional increase in the PTS during the surgery, both implants allowed coronal and sagittal plane corrections to be preserved postoperatively. The overall complication rates were similar, but the TomoFix required more material to be removed because it is more cumbersome. However, these results need to be confirmed on a larger scale. LEVEL OF EVIDENCE II; randomized controlled trial.
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Affiliation(s)
- Elsayed Said
- Department of Orthopaedic Surgery and Traumatology, Qena Faculty of Medicine, South Valley University, Qena, Egypt
| | - Ahmed Mohamed Ahmed
- Department of Orthopaedic Surgery and Traumatology, Qena Faculty of Medicine, South Valley University, Qena, Egypt.
| | - Ahmad Addosooki
- Department of Orthopaedic Surgery and Traumatology, Sohag Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Hossam Ahmed Attya
- Department of Orthopaedic Surgery and Traumatology, Qena Faculty of Medicine, South Valley University, Qena, Egypt
| | - Ahmad Khairy Awad
- Department of Orthopaedic Surgery and Traumatology, Qena Faculty of Medicine, South Valley University, Qena, Egypt
| | - Emad Hamdy Ahmed
- Department of Orthopaedic Surgery and Traumatology, Qena Faculty of Medicine, South Valley University, Qena, Egypt
| | - Hamdy Tammam
- Department of Orthopaedic Surgery and Traumatology, Qena Faculty of Medicine, South Valley University, Qena, Egypt
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Superior survivorship and plate-related results of TomoFix compared to Puddu plate fixation for opening-wedge high tibial osteotomy: A systematic review of the literature. Knee 2023. [PMID: 36863116 DOI: 10.1016/j.knee.2023.02.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
PURPOSE This systematic review aimed to compare survivorship and plate-related results of Puddu and TomoFix plates in opening-wedge high tibial osteotomy (OWHTO). METHODS PubMed, Scopus, EMBASE, and CENTRAL databases were searched from January 2000 until September 2021 for clinical studies involving patients with medial compartment knee disease and varus deformity undergoing OWHTO using the Puddu or TomoFix plating systems. We extracted survival data, plate-related complications, and functional and radiological outcomes. The risk of bias assessment had been carried out using Cochrane Collaboration's quality assessment tool for randomised controlled trials (RCTs) and Methodological Index for Non-Randomised Studies (MINORS). RESULTS Twenty-eight studies were included. The total number of knees was 2568 in 2372 patients. The Puddu plate was used in 677 knees, while the TomoFix plate was used in 1891. The follow-up ranged from 5.8 to 147.6 months. Both plating systems were able to delay conversion to arthroplasty at different follow-up intervals. However, osteotomies fixed by the TomoFix plate achieved higher survival rates, especially at mid-term and long-term follow-ups. In addition, fewer complications were reported with the TomoFix plating system. Although both implants achieved satisfactory functional outcomes, high scores could not be maintained throughout long-term intervals. Regarding radiological results, TomoFix plate was able to achieve and maintain larger degrees of varus deformity, while preserving the posterior tibial slope. CONCLUSIONS This systematic review demonstrated the superiority of the TomoFix over the Puddu system as a safer and more effective fixation device in OWHTO. Nevertheless, these results should be interpreted with caution due to the lack of comparative evidence through high-quality RCTs.
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van Haeringen MH, Kuijer PPFM, Daams JG, van Geenen RCI, Brinkman JM, Kerkhoffs GMMJ, van Heerwaarden RJ, Hoorntje A. Opening- and closing-wedge high tibial osteotomy are comparable and early full weight bearing is safe with angular stable plate fixation: a meta-analysis. Knee Surg Sports Traumatol Arthrosc 2022:10.1007/s00167-022-07229-3. [PMID: 36473985 DOI: 10.1007/s00167-022-07229-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 11/05/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE The purpose of this study was to establish the gold standard for surgical technique, fixation, and rehabilitation for HTO in patients with unicompartmental knee osteoarthritis. METHODS Medline, Embase, and SPORTDiscus databases were searched up to April 2022. Included were (1) randomized controlled trials (RCTs) comparing opening-wedge HTO (owHTO) and closing-wedge HTO (cwHTO), (2) biomechanical studies and prospective patient studies comparing biomechanical and clinical results for plate fixators, and (3) RCTs comparing an early versus delayed full-weight-bearing (FWB) protocol. RESULTS The pooled results for the surgical technique showed no significant differences between owHTO and cwHTO for most PROMs on pain, activity, and risk for conversion to TKA. The cwHTO group showed a slightly better improvement in KOOS/WOMAC pain scores (4.51; 95% CI 1.18-7.85), and a significantly lower change in posterior tibial slope (p = 0.03). The pooled results for the fixation method showed the highest force at maximum failure for the Activmotion (Newclip Technics, France), Aescula (B. Braun Korea, Korea), 2nd generation Puddu (Arthrex Inc., USA), and TomoFix plate (Depuy Synthes, Switzerland). The pooled results for the rehabilitation protocol showed no significant differences between the early full-weight-bearing (FWB) group and the delayed FWB group for functional scores, complication rates, and delayed unions. CONCLUSION Both owHTO and cwHTO reduced pain and improved knee function. Locking plate fixation should be used for owHTO. An early FWB protocol has proven to be safe in patients with small corrections, no hinge fractures, and non-smokers. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- M H van Haeringen
- Department of Orthopaedic Surgery, Amsterdam UMC, Amsterdam Movement Sciences, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - P P F M Kuijer
- Department of Public and Occupational Health, Amsterdam UMC, Amsterdam Public Health Research Institute, Amsterdam Movement Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - J G Daams
- Medical Library, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - R C I van Geenen
- Department of Orthopaedic Surgery, Foundation for Orthopaedic Research Care and Education, Amphia Hospital, Breda, The Netherlands
| | - J M Brinkman
- Centre for Deformity Correction and Joint Preserving Surgery, Kliniek ViaSana, Mill, The Netherlands
| | - G M M J Kerkhoffs
- Department of Orthopaedic Surgery, Amsterdam UMC, Amsterdam Movement Sciences, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - R J van Heerwaarden
- Centre for Deformity Correction and Joint Preserving Surgery, Kliniek ViaSana, Mill, The Netherlands
| | - A Hoorntje
- Department of Orthopaedic Surgery, Amsterdam UMC, Amsterdam Movement Sciences, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
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Zhao XW, Fan ZR, Ma JX, Ma XL, Wang Y, Bai HH, Lu B, Sun L. Reinforcement strategy for medial open-wedge high tibial osteotomy: a finite element evaluation of the additional opposite screw technique and bone grafts. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2022; 213:106523. [PMID: 34808530 DOI: 10.1016/j.cmpb.2021.106523] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 11/06/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND AND OBJECTIVE bone grafts (bgs) and the opposite screw insertion technique are reported to enhance initial stability after medial open-wedge high tibial osteotomy (OWHTO); however, it is unclear how the general and local biomechanical stability of the proximal tibia is affected by these reinforcement strategies. In this study, we aimed to assess the biomechanical differences among different fixation configurations for OWHTO under two loading conditions using finite element analysis, and to assess the biomechanical contribution of an opposite screw insertion. METHODS Models of the proximal tibia with three different gap defects were created to simulate different distraction heights in OWHTO. Four groups of models were then assembled with different fixation configurations, including the no BG (NBG) group, BG group, partially threaded screw (PT) group, and fully threaded screw (FT) group. Testing loads were applied to simulate the static forces on the knee joint during double-limb and single-limb standing. For each group, the stresses of the lateral hinge area (LHA) and the medial implant area (MIA), the maximum displacement of the tibia and the relative displacement (RD) of the medial gap were evaluated. RESULTS Compared to NBG group, bone block grafting effectively reduced the stress of the tibia and implant, as well as the maximum displacement of the tibia and the RD of the medial gap. The opposite screw group showed similar trends in alleviating the stress concentration on the LHA and MIA, and contributing to the maintaining the medial gap reduction, especially in the FT group; however, additional stresses were concentrated on the opposite screw itself, which indicated the potential risk of screw breakage. CONCLUSIONS Compared to NBG group, the BG group bone graft showed superior biomechanical advantages in decreasing the risk of implant failure and lateral hinge fracture, and maintaining the reduction in OWHTO. The additional opposite screw provided an extra support to the proximal tibia, with similar contributions to improve the structural stability after osteotomy, especially in the FT group.
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Affiliation(s)
- Xing-Wen Zhao
- Tianjin Medical University, No. 22 Qixiang Tai Street, Heping District, Tianjin 300070, China; Tianjin Hospital, No. 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China
| | - Zheng-Rui Fan
- Tianjin Medical University, No. 22 Qixiang Tai Street, Heping District, Tianjin 300070, China; Tianjin Hospital, No. 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China
| | - Jian-Xiong Ma
- Tianjin Hospital, No. 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China.
| | - Xin-Long Ma
- Tianjin Medical University, No. 22 Qixiang Tai Street, Heping District, Tianjin 300070, China; Tianjin Hospital, No. 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China.
| | - Ying Wang
- Tianjin Hospital, No. 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China
| | - Hao-Hao Bai
- Tianjin Hospital, No. 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China
| | - Bin Lu
- Tianjin Hospital, No. 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China
| | - Lei Sun
- Tianjin Hospital, No. 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China
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