Outcomes after locked plating of displaced patella fractures: a prospective case series

Ellwein, Alexander; Lill, Helmut; DeyHazra, Rony-Orijit; Smith, Tomas; Katthagen, J. Christoph

doi:10.1007/s00264-019-04337-7

Cited by 32 publications

(22 citation statements)

References 37 publications

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“…There are several studies in the actual literature on the functional outcome of the knee joint following patella fracture. In this context Wurm et al focused on the locking plate fixation treatment [22][23][24][25] commonly postulating good results for locking plate fixation in the treatment of comminuted patella fractures. Furthermore, Ellwein et al reported about restored function of the knee within 6 months after surgery [24].…”

Section: Discussionmentioning

confidence: 99%

“…In this context Wurm et al focused on the locking plate fixation treatment [22][23][24][25] commonly postulating good results for locking plate fixation in the treatment of comminuted patella fractures. Furthermore, Ellwein et al reported about restored function of the knee within 6 months after surgery [24]. To the best of our knowledge the presented study shows for the first time results on the functional outcome in refer to the patella height following surgically treated patella fractures.…”

Section: Discussionmentioning

confidence: 99%

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Influence of patella height after patella fracture on clinical outcome: a 13-year period

Pesch

Zyskowski

Greve

et al. 2021

Arch Orthop Trauma Surg

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Introduction The incidence of patella fracture is statistically low (0.5–1.5%) compared to other fractures of the extremities [Patella fractures 76(10):987–997, 2005]. In the latter research, patella fractures if treated surgically present an overall inferior functional outcome. Little is known about the influence of the postoperative patella height on the clinical outcome. Therefore, the aim of our study was to analyse the influence of the patella height on the patients’ functional outcome after surgery. Methods In this retrospective study the in-house trauma register of our level I University trauma center was screened for patients suffering patella fractures treated surgically. Patella height of the same patients was evaluated on lateral X-rays using the Insall–Salvati Ratio (ISR). The patients’ X-rays were analyzed at two time points for the ISR, whereas group A presents ISR data right after surgery and group B data at the latest follow up (minimum 6 weeks). The change of mean ISR at both time points was tested for significance. The functional outcome was measured by the “Munich Knee Questionaire” (MKQ). These MKQ results of different patella heights and fracture types were compared. Results The screening of our in-house trauma register revealed 375 patients between the years 2003 and 2016. Out of these 54 patients (34f, 20 m) were enrolled. In detail the follow-up time for ISR between group A and B accounted for a mean of 503.8 ± 655.7 days. The MKQ was assessed at a mean of 1367.0 ± 1042.8 days after surgery. According to the AO-classification 10% AO.34 type B and 90% AO.34 type C fractures were found. Group A showed in 9.1% a patella baja and in 27.3% a patella alta compared to group B presenting 20.0% patella baja and 14.5% patella alta. There was no significant difference in functional outcome referring to the MKQ in patella alta (MKQ 69.0% ± 18.2) or baja (MKQ 67.1% ± 17.9) (p = 0.9). No significant functional difference between AO34.type B (MKQ 74.5% ± 11.0) and AO34.type C fractures (MKQ 64.0% ± 15.0) resulted (p = 0.1). Conclusion Our results demonstrate that different postoperative patella heights apparently do not influence the functional outcome in the short follow-up.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Influence of patella height after patella fracture on clinical outcome: a 13-year period

Pesch

Zyskowski

Greve

et al. 2021

Arch Orthop Trauma Surg

View full text Add to dashboard Cite

show abstract

“…Although there are new techniques such as cannulated screw tension band [11,12] system [13] and patella plate [14], the MTBW is still the most widely accepted surgical method for the treatment of patellar transverse fracture [7]. The MTBW technique is easy to operate on and economical to reduce the burden on patients, and the key of MTBW technique is to keep two k-wires parallel [8,15].…”

Section: Discussionmentioning

confidence: 99%

A precise navigation device for fixation of patella fractures with modified K-wire tension band: design and application

Wang

Xiong

Long

et al. 2020

Preprint

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Abstract Background Traditionally, the technique of modified tension band wires (MTBW) has been the most commonly used surgical procedure. The purpose of this study is to design a precise navigation device that can obtain a standard position of K-wires for (MTBW), and to compare the precise MTBW (P-MTBW) by a navigation device with the conventional MTBW (C-MTBW) by hands in a retrospective study.Methods The device is designed by solidworks2012 software (USA), which can provide a precise guidance for obtaining a parallel K-wires. In addition, it can set the distance between two k-wires and the level of k-wires below patellar anterior surface. From June 2014 to August 2018, a total of 112 patients are employed in this retrospective study. The patients are divided into P-MTBW group and C-MTBW group according to the surgical technique with or without the precise navigation device. We need to record and analyze the operation time and the number of fluoroscopy, postoperative internal fixation imaging, knee function and complications.Results There were 54 patients in P-MTBW group and 58 patients in C-MTBW group. There were statistically significant differences(P＜0.001) in the operation time between P-MTBW group (39.5±4.7; range, 32–49 minutes) and C-MTBW group (53.7±6.8; range, 42–71 minutes). The number of intraoperative fluoroscopy was significantly less (P＜0.001) in P-MTBW group(4.2±1.4) versus that of C-MTBW group (8.3±2.7). According to Iowa knee score, there was no significant difference (P=0.268) in function between the two groups. According to our own evaluation criteria for MTBW, anyone in the P-MTBW group was excellent and 26 patients were excellent, 20 patients were good and 2 patients were fair in the C-MTBW group.Conclusion The navigation device can reduce operation time and intraoperative fluoroscopy frequency. P-MTBW fixation is an accurate and effective surgical procedure for patella fractures.

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“…Although there are new techniques such as cannulated screw tension band [11,12], cable pin system [13] and patella plate [14], the MTBW is still the most widely accepted surgical method for the treatment of patellar transverse fracture [7]. The MTBW technique is easy to operate on and economical to reduce the burden on patients, and the key of MTBW technique is to keep two k-wires parallel [8,15].…”

Section: Discussionmentioning

confidence: 99%

A precise navigation device for fixation of patella fractures with modified K-wire tension band: A comparative retrospective study

Wang

Xiong

Long

et al. 2020

Preprint

View full text Add to dashboard Cite

Background Traditionally, the technique of modified tension band wires (MTBW) has been the most commonly used surgical procedure. The purpose of this study is to design a precise navigation device that can obtain a standard position of K-wires for (MTBW), and to compare the precise MTBW (P-MTBW) by a navigation device with the conventional MTBW (C-MTBW) by hands in a retrospective study.Methods The device was designed by solidworks2012 software (USA), which could provide a precise guidance for obtaining a parallel K-wires. Besides, it could set the distance between two k-wires and the level of k-wires below patellar anterior surface. From June 2014 to August 2018, a total of 112 patients were employed in this retrospective study. The patients were divided into P-MTBW group and C-MTBW group according to the surgical technique with or without the precise navigation device. We needed to record and analyze the operation time and the number of fluoroscopy, postoperative internal fixation imaging, knee function and complications.Results There were 54 patients in P-MTBW group and 58 patients in C-MTBW group. There were statistically significant differences(P＜0.001) in the operation time between P-MTBW group (39.5±4.7; range, 32–49 minutes) and C-MTBW group (53.7±6.8; range, 42–71 minutes). The number of intraoperative fluoroscopy was significantly less (P＜0.001) in P-MTBW group(4.2±1.4) versus that of C-MTBW group (8.3±2.7). According to Iowa knee score, there was no significant difference (P=0.268 at one year) in function between the two groups. According to our own evaluation criteria for MTBW, anyone in the P-MTBW group was excellent and 26 patients were excellent, 20 patients were good and 2 patients were fair in the C-MTBW group.Conclusion The navigation device can reduce operation time and intraoperative fluoroscopy frequency. P-MTBW fixation is an accurate and effective surgical procedure for patella fractures.

show abstract

Outcomes after locked plating of displaced patella fractures: a prospective case series

Cited by 32 publications

References 37 publications

Influence of patella height after patella fracture on clinical outcome: a 13-year period

Influence of patella height after patella fracture on clinical outcome: a 13-year period

A precise navigation device for fixation of patella fractures with modified K-wire tension band: design and application

A precise navigation device for fixation of patella fractures with modified K-wire tension band: A comparative retrospective study

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