A Multicenter Randomized Trial Comparing IM Nails and Plate Fixation in Distal Femur Fractures

The study is a randomized controlled multicenter trial in which individuals sustaining a
fracture of the supracondylar (metaphyseal) region of the distal femur will be operatively
managed by one of two strategies. The first strategy involves fixation of the fracture with
a reamed, interlocking intramedullary nail (Nail Group). The second treatment strategy
involves open reduction and internal fixation of the fracture with a locking periarticular
plate (Plate Group). The null hypothesis of the study is that there will be no difference in
the two groups with respect to the primary and secondary outcome measures. To the degree
possible, patients in the two groups will receive post-operative care according to the same
standards and protocols.

Inclusion Criteria:

- Skeletally mature

- Fracture of the metaphyseal distal femur with or without intra-articular extension
and with or without a TKA

- Fracture requiring operative treatment amenable to either IM nail or plate

- Informed consent obtained

- Patient is English speaking

Exclusion Criteria:

- Fracture of the metaphyseal distal femur with intra-articular communition,

- Fracture with vascular injury (Gustillo Type IIIC injury) requiring repair,

- Pathological fracture,

- Known metabolic bone disease,

- Contralateral distal femur fractures (bilateral injury) or ipsilateral lower
extremity injury that would compromise function of the knee

- Retained hardware or existing deformity in the affected limb that would complicate IM
nailing or plating

- Symptomatic knee arthritis

- Soft tissue injuries compromising either treatment method with nail or plate

- Surgical delay greater than 3 weeks for closed fractures or 24 hours for open
fractures

- Immunocompromised

- Unable to comply with postoperative rehabilitation protocols or instructions (i.e.
head injured or mentally impaired)

- Current or impending incarceration

- Unlikely to follow-up in surgeon's estimation