Date: Wed, 14 Jan 2004 15:43:50 +0500

From: Alexander Chelnokov

Subject: Subtrochanteric Femur Fx - Peri-Implant

Hello All,

A female 69 years old sustained a femoral neck fracture 2 years ago, which was fixed by lag screws. She has been walking with full WB at home and with cane outside. Today she was trying to sit and missed the chair. X-ray attached. Opinions?

Best regards,

Alexander N. Chelnokov
Ural Scientific Institute of Traumatology and Orthopaedics
str.Bankovsky, 7. Ekaterinburg 620014 Russia


Reply at: Orthopaedic Trauma Association forum

Date: Wed, 14 Jan 2004 06:44:48 -0800

From: Chip Routt

A lateral film would help.

M.L. Chip Routt, Jr.,M.D.
Professor-Orthopedic Surgery
Harborview Medical Center
325 Ninth Avenue
Seattle, WA 98104-2499


Date: Thu, 15 Jan 2004 15:19:47 +0500

From: Alexander Chelnokov

Hello Chip,

CR> A lateral film would help.

See attachment for the only one available at the moment.

Best regards,

Alexander N. Chelnokov
Ural Scientific Institute of Traumatology and Orthopaedics
str.Bankovsky, 7. Ekaterinburg 620014 Russia


Date: Thu, 15 Jan 2004 02:07:20 EST

From: Aobonedoc

Perhaps several cerclage wires, then screw removal and IM nail with proximal fixation into head. Cerlage wires by themselves are tempting but I suspect significant risk of failure.

Sincerely and respectively,

M. Bryan Neal, MD
Arlington Orthopedics and Hand Surgery Specialists, Ltd.
Arlington Heights, Illinois 60005


Date: Thu, 15 Jan 2004 08:01:21 -0600

From: Steven Rabin

i'd suggest removal of screws, and fixation with DHS or similar implant


Date: Thu, 15 Jan 2004 08:50:38 EST

From: Bill Burman

See another case of a subtrochanteric fracture through screw holes for femoral neck fracture fixation.

Bill Burman, MD
HWB Foundation


Date: Thu, 15 Jan 2004 15:38:55 EST

From: Tadabq

That's a great case illustration provided by Bill and HWBF and the blade plate/valgus producingosteotomylooks like a good option for Alex's case. A particularly interesting aspect of Alex's case is the 2 years since screw placement. We've been leaving proximal screws in place indefinitely for years and haven't seen very many late fractures around them. The problems, if they occur, tend to be loss of fixation or early fracture from distal or large or many drill holes or the occasional arthritic hip requiring screw removal for femoral prosthetic placement. Perhaps this fracture at two years post opis merely a very uncommon and unlucky patient? Or have others seen this specific problem more frequently?

TD


Date: Fri, 16 Jan 2004 12:40:28 +0500

From: Alexander Chelnokov

Hello Tom,

TAC> That's a great case illustration provided by Bill and HWBF and the blade plate/valgus producing osteotomy looks like a good option for Alex's case.

I am not sure. Is it even technically doable in this fracture with splitting in frontal plane.

I wonder why so few colleagues supported option of IM nailing.

TAC> femoral prosthetic placement. Perhaps this fracture at two years post op is merely a very uncommon and unlucky patient? Or have others seen this specific problem more frequently?

In our settings it is uncommon injury.

Best regards,

Alexander N. Chelnokov
Ural Scientific Institute of Traumatology and Orthopaedics
str.Bankovsky, 7. Ekaterinburg 620014 Russia


Date: Fri, 16 Jan 2004 12:24:44 EST

From: Tadabq

Regarding this specific patient, it is quite difficult for me to discern the exactfracture pattern and therefore treatment suggestions. It appears to be a spiral fracture starting just proximal to the less trochanter and extending distally 6 or more cm into the shaft with medial displacement of the distal fragment. The lesser troch is a seperate fragment. The 2 year old femoral neck fracture appears to have healed in good position I really can't tell where the fracture starts laterally, but presumably it's near the distal most screw. I can't tell if there is further comminution of the shaft or the greater trochanter.I can barely see the fracture on the lateral radiograph. I'm not sure but I don't see AVN of the femoral head nor OA of the hip. Her overall bone quality appears normal for a 68 year old. I don't see any loosening of the screws but I can't tell for sure. The fracture extention well into the shaft makes intramedullary fixation somewhat more appealing than plate fixation and contrasts with the case posted by Bill. A reconstruction nail with proximal locking into the femoral head and neck after screw removal and reduction would be reasonable.

TD


Date: Fri, 16 Jan 2004 16:50:05 EST

From: Bill Burman

As has been suggested, better xrays are required to rule out femoral neck non-union, femoral head AVN, subtrochanteric fx extension to the piriformis fossa, etc.

In the absence of all of the above, per Tom DeCoster's description, the subtrochanteric fx appears to be a Russell-Taylor Type 1B which, in Toney Russell's OTA Basic Fx Course Lecture, is recommended for fixation with a cephalomedullary reconstruction IM nail.

In the same talk, blade-plating with indirect reduction technique receives honorable mention.

Bill Burman, MD
HWB Foundation


Date: Tue, 20 Jan 2004 12:48:52 +0500

From: Alexander Chelnokov

Another lateral view.

A closed nailing is scheduled for today. No reconstruction nail is available so a usual one is planned.

Best regards,

Alexander N. Chelnokov
Ural Scientific Institute of Traumatology and Orthopaedics
str.Bankovsky, 7. Ekaterinburg 620014 Russia


Date: Tue, 20 Jan 2004 21:48:57 +0500

From: Alexander Chelnokov

Hello All,

TAC>A reconstruction nail with proximal locking into the femoral head and neck after screw removal and reduction would be reasonable.

The screws were removed through a stab wound. Then a closed insertion of an unreamed solid nail 13 mm was performed and the nail statically locked - 3 screws 6 mm in the proximal fragment and 1 in the distal. Considering varus of the healed neck i tried to get some valgus to the proximal fragment as the nail allowed. The result attached. The fracture pattern can be seen better than in the initial films.

Any comments?

Best regards,

Alexander N. Chelnokov
Ural Scientific Institute of Traumatology and Orthopaedics
str.Bankovsky, 7. Ekaterinburg 620014 Russia