EC Orthopaedics

Research Article Volume 14 Issue 4 - 2023

Prospective Open-Label Trial to Compare the Effect of LISS vs POLYAX Plating on Distal Femur Fracture among Elderly

Sheikh Khalid Nisar1*, Abhimanyu Wadhwani2, Avtar Singh3, Thorat Babaji4, Mavani Ravi4 and Solakhe Sharad4

1Orthopaedic Surgeon, Department of Orthopaedics, Amandeep Hospital Amritsar, India

2Junior Resident, Department of Orthopaedics, Amandeep Hospital Amritsar, India

3HOD, Department of Orthopaedics, Amandeep Hospital Amritsar, India

4Senior Resident, Department of Orthopaedics, Amandeep Hospital Amritsar, India

*Corresponding Author: Sheikh Khalid Nisar, Orthopaedic Surgeon, Department of Orthopaedics, Amandeep Hospital Amritsar, India.
Received: May 17, 2022; Published: March 29, 2023



Introduction: The fractures which are usually located at the distal part of the femur can be supracondylar or intercondylar. Such fractures have been very hard to deal with since they have an unstable nature and possess a big challenge when it comes to defining their degree of comminution.

Nowadays with newer techniques and special materials, the results of surgical treatment are good, even in older patients who have poor bone quality. In our study, we compared the results of the less invasive surgical stabilization (LISS) plate and the multi-angled, POLYAX plate in old-age patients.

Methods: A prospective, comparative observational study carried out in a tertiary care trauma center among 40 subjects (20 in each group) above the age of 60 years.

Among both groups of patients, diabetes and hypertension were the most common co-morbidity. It was observed that 25 (62.5%) of the patients had 12 - 16 weeks of the time of fracture union while 12 (30%) had 17 - 20 weeks and 3 (7.5%) had non-union, diabetes was observed to be affecting fracture union among both groups.

The fractures were classified according to Gustilo Anderson’s system of classification for compound fractures and the Muller AO system of classification. All patients were treated surgically either using a LISS plate or multi-angled, POLYAX plate, and functional outcome was compared at the end of one-year follow-up.

Results: Fracture union was found at the rate of 72.5% in LISS, and subsequently, it was 77.5% in POLYAX plate. As a result, only one patient from the POLYAX group and additionally, two from the LISS group needed another surgery, which is a revision surgery for the failure of the implant. The rate of complication was found to be more in the LISS plate.

Conclusion: Based on our findings, we conclude that elderly osteoporotic femur fractures will give a better union rate managed with Polyax plate than LISS.

Keywords: Femur; Distal end; LISS; PLYAX; OKS; KSS

  1. Haidukewych GJ., et al. “Treatment of periprosthetic fractures around a total knee arthroplasty”. Journal of Knee Surgery 16-2 (2003): 111-117.
  2. Hanssen AD. “Prophylactic use of antibiotic bone cement: an emerging standard--in opposition”. The Journal of Arthroplasty4-1 (2004): 73-77.
  3. Merkel KD and Johnson EW. “Supracondylar fracture of the femur after total knee arthroplasty”. Journal of Bone and Joint Surgery American1 (1986): 29-43.
  4. Malik I., et al. “Comparative study of management of distal femoral fractures managed by dynamic condylar screw and distal femoral locking compression plate”. WebMD Central Orthopaedics9 (2015): WMC004976.
  5. Insall JN., et al. “Rationale of the Knee Society clinical rating system”. Clinical Orthopaedics and Related Research 248 (1989): 13-14.
  6. Panjabi MM., et al. “Correlations of radiographic analysis of healing fractures with strength: an e of experimental osteotomies”. Journal of Orthopaedic Research 3 (1985): 212-218.
  7. Cunningham BP., et al. “Fracture healing: A review of clinical, imaging and laboratory diagnostic options”. Injury1 (2017): S69-S75.
  8. Otto RJ., et al. “Biomechanical comparison of polyaxial-type locking plates and a fixed-angle locking plate for internal fixation of distal femur fractures”. Journal of Orthopaedic Trauma9 (2009): 645-652.
  9. Wilkens KJ., et al. “Polyaxial locking plate fixation in distal femur fractures: a biomechanical comparison”. Journal of Orthopaedic Trauma9 (2008): 624.
  10. Hanschen M and Biberthaler P. “Re: Mono- versus polyaxial locking plates in distal femur fractures: a prospective randomized multicentre clinical trial”. International Orthopaedics8 (2014): 1751-1752.
  11. Kregor PJ., et al. “Fixation of distal femoral fractures above total knee arthroplasty utilizing the Less Invasive Stabilization System (L.I.S.S.)”. Injury3 (2001): SC64-SC75.
  12. Herrera DA., et al. “Treatment of acute distal femur fractures above a total knee arthroplasty: a systematic review of 415 cases (1981-2006)”. Acta Orthopaedica1 (2008): 22-27.
  13. Insall JN., et al. “Rationale of the Knee Society clinical rating system”. Clinical Orthopaedics and Related Research248 (1989): 13-14.
  14. Pascarella R., et al. “Results in treatment of distal femur fractures using polyaxial locking plate”. Strategies in Trauma and Limb Reconstruction 9 (2014): 13-18.

Sheikh Khalid Nisar., et al. Prospective Open-Label Trial to Compare the Effect of LISS vs POLYAX Plating on Distal Femur Fracture among Elderly. EC Orthopaedics 14.4 (2023): 17-23.