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Does augmentation of intramedullary nails by a buttress plate effectively restore lateral wall integrity in intertrochanteric fractures

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Abstract

Background

Recent studies have proved the importance of intact lateral trochanteric wall, thus buttressing/fixing the broken lateral trochanteric wall irrespective of the implant, is likely to improve the alignment and outcome. We compared the outcome of lateral wall buttressing by trochanteric buttress plate (TBP) supplemented to proximal femoral nailing versus proximal femoral nailing alone in patients of broken lateral wall intertrochanteric fractures.

Material and method

Sixty patients of intertrochanteric factures (IT) of femur with broken lateral wall were randomized into group A or B and were treated with either proximal femoral nail (PFN) alone or proximal femoral nail augmented with trochanteric buttress plate (PFN + TBP), respectively. The TBP plate used was primarily fixed to proximal femur via 8 mm hip screw and 6.4 mm antirotation screw of the PFN. Operative time, blood loss, radiation exposure, quality of reduction, functional outcome, union time, and complications were compared.

Result

The mean age was 60.03 + 7.60 (range 42 to 70 years), with male to female ratio of 4:1 and left to right ratio of approximately 1:1. The mean follow up in the series was 16.2 months (range 13 to 36 months). Mean duration of surgery, mean intra-operative blood loss, and mean number of exposures in group A (PFN alone) were 64.88 + 12.24 min (48 to 88), 93 + 1.18 ml (60 to 120), and 32.13 (24 to 46) and in group B (PFN with TBP plate) were 91.86 + 12.78 min (70 to 122 min), 144.8 + 3.6 ml (116 to 208 ml), and 56.6 (38 to 112), respectively. Twenty-five patients and 28 patients in groups A and B respectively achieved score of 4 Chang quality reduction. Mean union time was 13.4 weeks in group A whereas in group B was 11.6 weeks. Mean HHS score in group A was 87.86 with 90% patients in comparison to 94.13 and 97% cases having excellent to good results in group B. In group A, 24 patients, while 29 patients in group B, had excellent to good results. Four patients had hip pain, four had impingement of screws, two had screw migration, three had Z/reverse effect, and four patients had shortening of more than 1 cm in group A. In group B, only one patient had impingement and none of the patient had hip pain, infection, implant failure, Z effect, or shortening.

Conclusion

The lateral trochanteric wall in IT fractures is significantly important, and when the lateral wall is broken, it can lead to poor results. TBP plate which is applied laterally on femur along with nail and fixing the plate with hip screw and antirotational screw provides faster union, early weight bearing, better reduction, and so better hip functions. TBP can be used successfully to augment, fix, or buttress the lateral trochanteric wall giving excellent to good results but at the cost of surgical time, blood loss, and radiation exposure.

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Change history

  • 18 July 2022

    Updated due to an incorrect word in the abstract. It should be "in group A" instead of "in grasp".

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Authors and Affiliations

  1. Department of Orthopaedics, MGM Medical College and MY Hospital, 2-A, Scheme no. 71, Sector C, Footi Kothi Chouraha, Ring Road, Indore, M.P, 452009, India

    Saurabh Jain, Harshwardhan Dawar, Harshit Khare, Malay Kumar & Anand Ajmera

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  1. Saurabh Jain
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  2. Harshwardhan Dawar
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  3. Harshit Khare
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  4. Malay Kumar
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Contributions

Dr Saurabh Jain (first and corresponding author) — main idea and research.

Dr Harshwardhan Dawar (second author) — research contribution.

Dr Harshit Khare (third author) — data compilation and paper writing.

Dr Malay Kumar (fourth author) — data compilation and paper writing.

Dr Anand Ajmera (fifth author) — randomization.

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Correspondence to Saurabh Jain.

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Jain, S., Dawar, H., Khare, H. et al. Does augmentation of intramedullary nails by a buttress plate effectively restore lateral wall integrity in intertrochanteric fractures. International Orthopaedics (SICOT) 46, 2365–2371 (2022). https://doi.org/10.1007/s00264-022-05488-w

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