This retrospective study of 81 talar neck fractures proposes splitting the Hawkins type II category into IIA (subtalar subluxation) and IIB (subtalar dislocation). The central question: does the degree of initial displacement, or the timing of fixation, drive osteonecrosis risk?
The classic teaching was that talar neck fractures are orthopedic emergencies requiring immediate fixation to prevent osteonecrosis — this paper challenges that directly.
When you see a Hawkins type IIB or III fracture, urgently reduce the dislocation in the ED or OR, but you do not need to rush through a complex ORIF at 2 AM. Staged treatment with delayed definitive fixation (mean 10.6 days in this series) produced a 5% osteonecrosis rate in the type IIB and III patients managed this way.
When osteonecrosis does appear on post-op films, tell your patient that nearly half of cases revascularize without collapse. Hold off on advancing to fusion or arthroplasty until collapse is confirmed. All collapses in this series occurred within 11 months.
If the fracture involves the talar body, counsel the patient early: 83% develop arthritis, and secondary reconstructive procedures are the rule rather than the exception.
This retrospective study of 81 talar neck fractures proposes splitting the Hawkins type II category into IIA (subtalar subluxation) and IIB (subtalar dislocation). The central question: does the degree of initial displacement, or the timing of fixation, drive osteonecrosis risk?
The classic teaching was that talar neck fractures are orthopedic emergencies requiring immediate fixation to prevent osteonecrosis — this paper challenges that directly.
When you see a Hawkins type IIB or III fracture, urgently reduce the dislocation in the ED or OR, but you do not need to rush through a complex ORIF at 2 AM. Staged treatment with delayed definitive fixation (mean 10.6 days in this series) produced a 5% osteonecrosis rate in the type IIB and III patients managed this way.
When osteonecrosis does appear on post-op films, tell your patient that nearly half of cases revascularize without collapse. Hold off on advancing to fusion or arthroplasty until collapse is confirmed. All collapses in this series occurred within 11 months.
If the fracture involves the talar body, counsel the patient early: 83% develop arthritis, and secondary reconstructive procedures are the rule rather than the exception.