1: Unfallchirurg  1997 Dec;100(12):957-67 

[Particular posteromedial and posterolateral approaches for the treatment of
tibial head fractures]

[Article in German]

Lobenhoffer P, Gerich T, Bertram T, Lattermann C, Pohlemann T, Tscheme H.

Unfallchirurgische Klinik, Medizinische Hochschule Hannover.

Tibial plateau fractures with depression of posterior aspects of the proximal
tibia cause significant therapeutic problems. Posterior fractures on the medial
side are mainly highly instable fracture-dislocations (Moore type I).
Posterolateral fractures usually cause massive depression and destruction of the
chondral surface. Surgical exposure of these fractures from anterior requires
major soft tissue dissection and has a significant complication rate. However,
incomplete restoration of the joint surface results in chronic postero-inferior
joint subluxation, osteoarthritis and pain. We present new specific approaches
for posterior fracture types avoiding large skin incisions, but allowing for
atraumatic exposure, reduction and fixation. Posteromedial fracture-dislocations
are exposed by a direct posteromedial skin incision and a deep incision between
medial collateral ligament and posterior oblique ligament. The posteromedial
pillar and the posterior flare of the proximal tibia are visualized. The
inferior extent of the joint fragment can be reduced by indirect techniques or
direct manipulation of the fragment. Fixation is achieved with subchondral lag
screws and an anti-glide plate at the tip of the fragment. Posterolateral
fractures are exposed by a transfibular approach: the skin is incised laterally,
the peroneal nerve is dissected free. The fibula neck is osteotomized, the
tibiofibular syndesmosis is divided and the fibula neck is reflected upwards in
one layer with the meniscotibial ligament and the iliotibial tract attachment.
Reflexion of the fibula head relaxes the lateral collateral ligament, allows for
lateral joint opening and internal rotation of the tibia and thus exposes the
posterolateral and posterior aspect of the tibial plateau. Fixation and
buttressing on the posterolateral side can be achieved easily with this
approach. In closure, the fibula head is fixed back with a lag screw or a
tension-band system. These two exposures can be combined in bicondylar posterior
fracture situations. 168 cases with tibial plateau fractures had ORIF in the
authors' institution from 1988 to 1994. 26 of these patients had a total of 29
posterior exposures to treat their fractures (9 posteromedial, 12
posterolateral, 3 combined posteromedial/posterolateral and 2 posterior/anterior
exposures). No specific complications occurred related to these exposures, i.e.
no skin slough, no infection, no nerve palsy. The mean duration of follow-up was
4 years. Twenty-one cases healed uneventfully: 12 were excellent in Rasmussen's
clinical score, 8 were good and 1 was fair. Seven patients were excellent in the
radiological score, 13 good and 1 fair. Five of the 26 cases had revision
surgery: 3 patients developed valgus or retrocurvatum deformity and were
successfully treated by an osteotomy. They obtained a good result at follow-up.
Two fractures in elderly patients were revised to an endoprosthesis.

PMID: 9492642 [PubMed - indexed for MEDLINE]