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Published on: January 24, 2018
[A modified posterolateral approach for the treatment of tibial plateau fractures]
Karl-Heinz Frosch1, Peter Balcarek, Tim Walde
1Abteilung Unfallchirurgie, Plastische und Wiederherstellungschirurgie, Universitätsmedizin Göttingen, Göttingen, Germany. khfrosch@med.uni-goettingen.de
Objective:
Open reduction and internal fixation of posterolateral tibial plateau fractures.
Indications:
Tibial plateau fractures involving the posterolateral quadrant.
Contraindications:
Critical soft-tissue conditions. Tibial plateau fractures which do not involve the posterolateral quadrant.
Surgical Technique:
90 degrees side positioning on the contralateral side, skin incision along the fibular head, exposure of the peroneal nerve, lateral arthrotomy and exposure of the joint, dissection of the popliteal cavity between the lateral head of the gastrocnemius muscle and soleus muscle. Blunt preparation between popliteus muscle and soleus muscle under preservation of the popliteal artery and vein. Sharp dissection of the soleus muscle from the dorsal parts of fibula and tibia until the peroneal nerve at the fibular neck enters into the muscle. Exposure of the posterolateral tibial head. The dorsal joint capsule and the popliteal corner are prevented from any soft-tissue damage. Visual control of fracture reduction by viewing in the joint gap through lateral arthrotomy. Reduction of the fracture from dorsal with pointed reduction forceps. A conventional or locking radius T-plate can be pinched off with lateral cutters and anatomically bent for fracture fixation and is dorsally fixed at the tibial plateau.
Postoperative Management:
10 kg partial weight bearing for 6-8 weeks. Limited range of motion 0-0-90 degrees for 6 weeks.
Results:
In a period of 2 years, seven patients with posterolateral tibial plateau fractures received open reduction and internal fixation by using the modified posterolateral approach. The patients were examined at follow-up between 12 and 24 months after surgery. Six patients were free of pain with full range of motion and stable knee joints. Radiologically, a good fracture reduction was achieved in six cases. In one patient with a posterolateral comminuted dislocation fracture, a small fracture step and a gap could be observed. No approach-related complications were found.
