Type IV Tibial Tubercle Fractures in Adolescents-Is Operative Treatment Necessary?

Area of Science:

• Orthopedic surgery
• Pediatric orthopedics
• Sports medicine

Background:

• Adolescent tibial tubercle fractures (TTF) require tailored treatment based on fracture type and displacement.
• Ogden type IV TTFs are extra-articular, exiting through the posterior physis or metaphysis.
• Limited comparative data exists for operative versus nonoperative management of Ogden type IV TTFs.

Purpose of the Study:

• To compare clinical and radiographic outcomes of operative and nonoperative treatments for Ogden type IV tibial tubercle fractures in adolescents.
• To evaluate the effectiveness of different management strategies for this specific fracture pattern.

Main Methods:

• Retrospective review of 36 limbs in 33 patients under 18 with Ogden type IV TTFs (2013-2023).
• Data collected included injury mechanism, weight percentile, compartment syndrome concerns, weight-bearing/activity return times, treatment method, and complications.
• Radiographic analysis included posterior tibial slope angle (PTSA), medial proximal tibial angle (MPTA), and anterior fracture gap.

Main Results:

• No significant differences in final PTSA or MPTA between nonoperative (n=18) and operative (n=18) groups.
• Similar times to full weight bearing and return to sport/activity for both treatment groups.
• Complication rates were comparable: 4 nonoperative vs. 3 operative cases.

Conclusions:

• Nonoperative and operative treatments for Ogden type IV TTFs yield equivalent radiographic and clinical outcomes.
• Closed reduction is a viable initial approach for type IV TTFs due to the absence of joint incongruity.
• Operative intervention is indicated for failed closed reductions or if compartment syndrome is imminent.