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Mar 22, 2008, 10:47 AM
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Re: [ORT-L] Approach to crescent fractures
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regarding " posterior pelvis preaching " so endeth the lesson ..thanks chip stephen kottmeier ----- Original Message ----- From: Chip Routt Date: Saturday, March 22, 2008 11:44 am Subject: Re: [ORT-L] Approach to crescent fractures To: ORT-L@www2.aaos.org > This is not an easy injury complex to discuss in this format. > > So briefly.... > > Posterior Iliac (³Crescent²) Fracture With Associated Sacro- > Iliac Joint > Anterior Articular Disruptions are quite variable > injuries...each with its > unique character, specifics, and underlying osteology. > > Some cause a significant crushing fracture involving the lateral- > anteriorsacral articular surface...some donıt. > > Some have a very small iliac fracture component....some > large...some in > between. > > Some have comminution involving the iliac articular surface, as > your patient > has....some comminute in other areas...some donıt comminute. > > Some have a large iliac component...giving it the appearance of > a ³half > moon² rather than a ³crescent moon². > > Some injure the superior gluteal vascular trunk. > > In most, the posterior iliac fragment is stable and we rely on > it and the > stable sacrum as foundations to reconstruct upon...but in some > the posterior > iliac fragment is also unstable...uncommon but it happens. > > Many are noted in association with sacral > dysmorphism/dysplasia...and that > can impact fixation options. > > Many can be partially (some definitively) stabilized using iliosacral > screws, but some cannot because of the fracture location. > > We should always seek the optimal reduction and fixation. > > The surgeon can reduce and then stabilize the unstable component > to (1) the > sacrum, (2) the posterior ilium fragment (if itıs stable), and > (3) the > ipsilateral ring injury (ramus in your patient). > > I could go on and on...and we havenıt even touched on the > patientıs age, > bone quality, body habitus, local soft tissue conditions, associated > injuries, etc....all these details matter. > > So itıs really difficult to make sweeping statements about a > universal-optimal method for exposure, reduction, and fixation > of such > variable injury complexes...the specific treatment should be > selected for > each injury pattern based on its unique details. > > For your patient, if you use an anterior iliac exposure youıll > be pleased > because you can see, clean, reduce, and fix the articular > component...especially since your patientıs iliac articular area is > comminuted according to the sent images...but you may also need > to expose > and clean the ramus component to accomplish the posterior > reduction quality > that you seek. > > The anterior exposure allows the surgeon to extend the exposure > for ramus > (ipsi- or contra-lateral) and/or symphyseal access as needed. > > But does all that improve clinical results???...it makes sense > that it > could/should...but if you injure the fifth lumbar nerve root or > lateralfemoral cutaneous nerve while retracting, or if the iliac > wound becomes > infected, or if you choose an insufficient fixation construct > that fails, or > the patient develops symptomatic ectopic bone in the ipsilateral > iliolumbarligaments or abdominal oblique repair area, among > others...then no, you > shouldıve just shoved it around, tossed in some screws, and > called it a > great operation....and some patients need exactly that. > > Itıs just not such an easy injury to cookbook with one recipe. > > Chip > > > > > > > > > > > > does anyone think that, as an articular fracture, that the reduction > > of the crescent fracture is better when viewed open, from the front? > > perhaps an anatomic articular reduction makes the incidence of late > > pain & SI joint arthrosis less? > > > > > > On Mar 19, 2008, at 3:33 PM, Rahul Banerjee wrote: > >> Jeff, > >> > >> I think that either an anterior or posterior approach would be > >> reasonable > >> for this fracture. If you go anterior, you could also fix the ramus > >> fracture, but if you choose posterior, once you reduce and > >> stabilize the > >> crescent fracture, the ramus may already be reasonably > reduced and > >> may not > >> require additional fixation. > >> > >> Borrelli J Jr, Koval KJ, Helfet DL.Operative stabilization of > fracture>> dislocations of the sacroiliac joint. Clin Orthop > Relat Res. 1996 > >> Aug;(329):141-6. > >> > >> -----Original Message----- > >> From: ORT-L-owner@www2.aaos.org [mailto:ORT-L-owner@www2.aaos.org] > >> On Behalf > >> Of Jeff Brooks > >> Sent: Wednesday, March 19, 2008 12:53 PM > >> To: ORT-L@www2.aaos.org > >> Subject: [ORT-L] Approach to crescent fractures > >> > >> esteemed colleagues, > >> > >> what in your opinion is the best approach to the crescent > fracture?>> (see attached powerpoint slides) > >> > >> 1) prone posterior ORIF with second anterior L SP ramus exposure > >> or perc > >> for the front (L sup ramus in attached case)? > >> 2) supine all-ilioinguinal for L ramus and crescent Fxs? > >> 3) all perc? (adam, you out there?) > >> 4) other pearls you might offer? > >> -------------------------------------------------- > >> this 22 year-old was in MVA 4d ago, with closed head injury > >> (subarrachnoid > >> blood, some diffuse axonal injury, but a chance at decent recovery > >> according to neurosurgeons...). hemodynamics stable since the > >> injury. no > >> fixator or traction applied - on simple bedrest right now. > (getting>> inlet/outlet & judets when extubated tomorrow) > >> > >> i'd love to hear some thoughts on surgical aproach and fixation > >> techniques. the list has been kinda quiet for a while. > >> > >> thanks! > >> > >> Jeff Brooks > >> Stamford, CT > >> > >> > >> > >> -- > >> Jeffrey J. Brooks, MD > >> Orthopaedic Surgery & Sports Medicine Center 1290 Summer > Street, #4400 > >> Stamford, CT 06905 > >> > >> --- > >> [This E-mail scanned for viruses by Declude Virus] > >> > > > > --- > > [This E-mail scanned for viruses by Declude Virus] > > > > M.L. Chip Routt, Jr.,M.D. > Professor-Orthopedic Surgery > Harborview Medical Center > 325 Ninth Avenue > Box 359798 > Seattle, WA 98104-2499 > phone 206-731-3658 > FAX 206-731-3227 > -- > > >
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