Dynamic fixation of distal femur fractures using far cortical locking screws: A prospective observational study

Michael Bottlang, Daniel C. Fitzpatrick, Dan Sheerin, Erik Kubiak, Richard Gellman, Corey Vande Zandschulp, Josef Doornink, Kathleen Earley, Steven M. Madey

Research output: Contribution to journalArticle

  • 33 Citations

Abstract

OBJECTIVES:: Document fixation and healing of distal femur fractures stabilized by plate osteosynthesis using far cortical locking (FCL) screws. DESIGN:: Prospective and observational. SETTING:: Two level 1 and 1 level 2 trauma centers. PATIENTS:: Thirty-two consecutive patients with 33 distal femur fractures (AO/OTA types 33A, 33C). INTERVENTION:: Fractures were stabilized by plate osteosynthesis with MotionLoc FCL screws without supplemental bone graft or bone morphogenic proteins. Patients were followed up for a minimum of 1 year with functional and radiographic assessments obtained at postoperative weeks 6, 12, and 24 and computed tomography scans at week 12. If union was not confirmed within 1 year, follow-up was continued until union or revision surgery. MAIN OUTCOME MEASURES:: The primary end point was fracture union in the absence of complications and secondary interventions. Fracture healing was defined by resolution of pain at the fracture site and cortical bridging on biplanar radiographs. Complications were defined by fixation failure, loss of reduction, implant breakage, infection, nonunion, and need for revision. RESULTS:: Thirty-one fractures were available for follow-up. None of the 125 FCL screws used for diaphyseal fixation broke or lost fixation. One of the 31 fractures displaced into varus (ΔVarus = 5.8 degrees). Thirty of the 31 fractures healed within 15.6 ± 6.2 weeks. At an average follow-up of 17 ± 4 months, there were 2 revisions: one to correct a malrotation at day 5 and one to treat a nonunion at 6 months. CONCLUSIONS:: Absence of implant and fixation failure suggests that dynamic plating of distal femur fractures with FCL screws provides safe and effective fixation.

LanguageEnglish
Pages181-188
Number of pages8
JournalJournal of Orthopaedic Trauma
Volume28
Issue number4
DOIs
StatePublished - 2014

Fingerprint

Femur
Observational Studies
Prospective Studies
Bone and Bones
Fracture Healing
Trauma Centers
Reoperation
Tomography
Transplants
Pain
Infection
Proteins

Keywords

  • Dynamic fixation
  • Far cortical locking
  • Femur fracture
  • Fracture healing
  • Locked plating
  • Motionloc
  • Observational study

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

Dynamic fixation of distal femur fractures using far cortical locking screws : A prospective observational study. / Bottlang, Michael; Fitzpatrick, Daniel C.; Sheerin, Dan; Kubiak, Erik; Gellman, Richard; Vande Zandschulp, Corey; Doornink, Josef; Earley, Kathleen; Madey, Steven M.

In: Journal of Orthopaedic Trauma, Vol. 28, No. 4, 2014, p. 181-188.

Research output: Contribution to journalArticle

Bottlang, M, Fitzpatrick, DC, Sheerin, D, Kubiak, E, Gellman, R, Vande Zandschulp, C, Doornink, J, Earley, K & Madey, SM 2014, 'Dynamic fixation of distal femur fractures using far cortical locking screws: A prospective observational study' Journal of Orthopaedic Trauma, vol. 28, no. 4, pp. 181-188. https://doi.org/10.1097/01.bot.0000438368.44077.04
Bottlang, Michael ; Fitzpatrick, Daniel C. ; Sheerin, Dan ; Kubiak, Erik ; Gellman, Richard ; Vande Zandschulp, Corey ; Doornink, Josef ; Earley, Kathleen ; Madey, Steven M. / Dynamic fixation of distal femur fractures using far cortical locking screws : A prospective observational study. In: Journal of Orthopaedic Trauma. 2014 ; Vol. 28, No. 4. pp. 181-188.
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abstract = "OBJECTIVES:: Document fixation and healing of distal femur fractures stabilized by plate osteosynthesis using far cortical locking (FCL) screws. DESIGN:: Prospective and observational. SETTING:: Two level 1 and 1 level 2 trauma centers. PATIENTS:: Thirty-two consecutive patients with 33 distal femur fractures (AO/OTA types 33A, 33C). INTERVENTION:: Fractures were stabilized by plate osteosynthesis with MotionLoc FCL screws without supplemental bone graft or bone morphogenic proteins. Patients were followed up for a minimum of 1 year with functional and radiographic assessments obtained at postoperative weeks 6, 12, and 24 and computed tomography scans at week 12. If union was not confirmed within 1 year, follow-up was continued until union or revision surgery. MAIN OUTCOME MEASURES:: The primary end point was fracture union in the absence of complications and secondary interventions. Fracture healing was defined by resolution of pain at the fracture site and cortical bridging on biplanar radiographs. Complications were defined by fixation failure, loss of reduction, implant breakage, infection, nonunion, and need for revision. RESULTS:: Thirty-one fractures were available for follow-up. None of the 125 FCL screws used for diaphyseal fixation broke or lost fixation. One of the 31 fractures displaced into varus (ΔVarus = 5.8 degrees). Thirty of the 31 fractures healed within 15.6 ± 6.2 weeks. At an average follow-up of 17 ± 4 months, there were 2 revisions: one to correct a malrotation at day 5 and one to treat a nonunion at 6 months. CONCLUSIONS:: Absence of implant and fixation failure suggests that dynamic plating of distal femur fractures with FCL screws provides safe and effective fixation.",
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AU - Bottlang, Michael

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AU - Kubiak, Erik

AU - Gellman, Richard

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