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Bone & Joint Open
Vol. 5, Issue 2 | Pages 147 - 153
19 Feb 2024
Hazra S Saha N Mallick SK Saraf A Kumar S Ghosh S Chandra M

Aims. Posterior column plating through the single anterior approach reduces the morbidity in acetabular fractures that require stabilization of both the columns. The aim of this study is to assess the effectiveness of posterior column plating through the anterior intrapelvic approach (AIP) in the management of acetabular fractures. Methods. We retrospectively reviewed the data from R G Kar Medical College, Kolkata, India, from June 2018 to April 2023. Overall, there were 34 acetabulum fractures involving both columns managed by medial buttress plating of posterior column. The posterior column of the acetabular fracture was fixed through the AIP approach with buttress plate on medial surface of posterior column. Mean follow-up was 25 months (13 to 58). Accuracy of reduction and effectiveness of this technique were measured by assessing the Merle d’Aubigné score and Matta’s radiological grading at one year and at latest follow-up. Results. Immediate postoperative radiological Matta’s reduction accuracy showed anatomical reduction (0 to 1 mm) in 23 cases (67.6%), satisfactory (2 to 3 mm) in nine (26.4%), and unsatisfactory (> 3 mm) in two (6%). Merle d’Aubigné score at the end of one year was calculated to be excellent in 18 cases (52.9%), good in 11 (32.3%), fair in three (8.8%), and poor in two (5.9%). Matta’s radiological grading at the end of one year was calculated to be excellent in 16 cases (47%), good in nine (26.4%), six in fair (17.6%), and three in poor (8.8%). Merle d’Aubigné score at latest follow-up deteriorated by one point in some cases, but the grading remained the same; Matta’s radiological grading at latest follow-up also remained unchanged. Conclusion. Stabilization of posterior column through AIP by medial surface plate along the sciatic notch gives good stability to posterior column, and at the same time can avoid morbidity of the additional lateral window. Cite this article: Bone Jt Open 2024;5(2):147–153


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_17 | Pages 8 - 8
11 Oct 2024
Kennedy M Williamson T Kennedy J Macleod D Wheelwright B Marsh A Gill S
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Acetabular fractures present a challenge. Anatomical reduction can be achieved by open reduction and internal fixation (ORIF). However, in elderly patients with complex fracture patterns and osteoporotic bone stock, “fix and replace” has become an option in the management of these injuries. This involves ORIF of the acetabulum to enable insertion of a press fit cup and subsequent cemented femoral stem at the index surgery. A Retrospective analysis of all operatively managed acetabular fractures by a regional Pelvic and Acetabular Trauma service (01/01/2018-30/05/2023) STATA used for analysis. 34 patients undergoing “fix and replace” surgery. Of the 133 patients managed with ORIF, 21 subsequently required Total Hip Arthroplasty (THA). Mean follow up was 2.7 years versus 5.1. There was no statistical significance between the two groups with regards to BMI or sex. Mean age in the “fix and replace” group was 68 compared to 48 in the ORIF and subsequent THA group. This reached statistical significance between the two groups (p=0.001).ASA and Charlson Comorbidity Index (3 and 3 in “fix and replace” and 2 and 1.2 in ORIF to THA group) and Charlson Comorbidity Index both were statistically significantly different (p=0.006 and p=0.027, respectively). High energy mechanism of injury accounted for 56% of the “fix and replace” group compared to 48% in the ORIF to THA. 74% of “fix and replace” were associated fractures compared to 53% of ORIF to THA. Wait to surgery was 3 days for “fix and replace” while 186 days was the mean wait time from listing to THA for the ORIF to THA group. Complication rate was 41% versus 43% in the two groups. 14% in the ORIF to THA group developed PJI versus 6% in “fix and replace”. Fix and replace allows early mobilisation in frailer, elderly patients. Our results show fewer returns to theatre and less PJI in patients having arthroplasty as part of “fix and replace” than subsequent to Open reduction internal fixation


The Journal of Bone & Joint Surgery British Volume
Vol. 88-B, Issue 9 | Pages 1197 - 1203
1 Sep 2006
Madhu R Kotnis R Al-Mousawi A Barlow N Deo S Worlock P Willett K

This is a retrospective case review of 237 patients with displaced fractures of the acetabulum presenting over a ten-year period, with a minimum follow-up of two years, who were studied to test the hypothesis that the time to surgery was predictive of radiological and functional outcome and varied with the pattern of fracture. Patients were divided into two groups based on the fracture pattern: elementary or associated. The time to surgery was analysed as both a continuous and a categorical variable. The primary outcome measures were the quality of reduction and functional outcome. Logistic regression analysis was used to test our hypothesis, while controlling for potential confounding variables. For elementary fractures, an increase in the time to surgery of one day reduced the odds of an excellent/good functional result by 15% (p = 0.001) and of an anatomical reduction by 18% (p = 0.0001). For associated fractures, the odds of obtaining an excellent/good result were reduced by 19% (p = 0.0001) and an anatomical reduction by 18% (p = 0.0001) per day. When time was measured as a categorical variable, an anatomical reduction was more likely if surgery was performed within 15 days (elementary) and five days (associated). An excellent/good functional outcome was more likely when surgery was performed within 15 days (elementary) and ten days (associated). The time to surgery is a significant predictor of radiological and functional outcome for both elementary and associated displaced fractures of the acetabulum. The organisation of regional trauma services must be capable of satisfying these time-dependent requirements to achieve optimal patient outcomes


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 352 - 352
1 Sep 2012
Nicodemo A Governale G Stucchi A Valente A Cuocolo C Massè A
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Introduction. Between 2002–2009 we operatively treated 193 acetabular fracture. Among these 44 both-columns fractures according to the classification of Letournel and Judet have been reviewed in order to evaluate the results. These fractures are rare, difficult to treat and often have poor clinical results. Patients and Methods. 44 cases of ORIF of displaced both columns fractures have been studied at a mean 37 months follow-up (range, 13 to 76 months) after the injury. 40 hips were operated with the ilioinguinal approach alone, 1 with Kocker Langenbeck and Smith petersen combined. The 3 remaining hips were operated with a double Kocher-Langenbeck and ilioinguinal approach. Every case was evalueted on X-rays according to Matta criteria and clinically with the Harris hip score and the WOMAC score. Results. The mean Harris hip score has been 85,8% (range 30%–100%) while the mean WOMAC score has been 88,3 points (range 39,1–100). The main complications were 4 early post-traumatic arthritis operated by hip replacement. One patient instead developed a gastric carcinoma. Discussion. The rate of anatomical reduction decreased with the complexity of the fracture, the age, and the interval between the injury and the reduction. The clinical result was adversely affected by associated injuries of the femoral head, an older age of the patient. It was positively affected by an anatomical reduction and postoperative congruity between the femoral head and the acetabular roof. Conclusions. These findings indicate that in many patients who have a complex acetabular fracture the hip joint can be preserved and post-traumatic osteoarthritis can be avoided if an anatomical reduction is achieved. Both column acetabular fractures can be reduced with a combined surgical approaches or with ilioinguinal alone. We used the ilioinguinal approach alone in 91% of cases reaching good results, even comparing Letournel and Matta's results. Surgeon experience and a long learning curve can help in decision making and in obtaining an anatomical reduction with a low rate of post-operative complications


The Journal of Bone & Joint Surgery British Volume
Vol. 88-B, Issue 12 | Pages 1618 - 1624
1 Dec 2006
Bhandari M Matta J Ferguson T Matthys G

We aimed to identify variables associated with clinical and radiological outcome following fractures of the acetabulum associated with posterior dislocation of the hip. Using a prospective database of 1076 such fractures, we identified 109 patients with this combined injury managed operatively within three weeks and followed up for two or more years. The patients had a mean age of 42 years (15 to 79), 78 (72%) were male, and 84 (77%) had been involved in motor vehicle accidents. Using multivariate analysis the quality of reduction of the fracture was identified as the only significant predictor of radiological grade, clinical function and the development of post-traumatic arthritis (p < 0.001). All patients lacking anatomical reduction developed arthritis whereas only 25.5% (24 patients) with an anatomical reduction did so (p = 0.05). The quality of the reduction of the fracture is the most important variable in forecasting the outcome for patients with this injury. The interval to reduction of the dislocation of the hip may be less important than previously described


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 20 - 20
1 Sep 2012
Adib F Medadi F Guidi E Alami Harandi A Reddy C
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Introduction. In this study we decided to observe the incidence of osteoarthritis following ORIF of Lisfranc joint injury. We also intended to point out the influence of different factors such as late diagnosis of the fracture, co-fractures, and open or close fractures on the incidence of osteoarthritis. Methods. Patients with a dislocation more than 2 millimeters in simple AP, lateral and oblique radiograms of the foot who went through ORIF were included. Patients were classified according to: Anatomic or non-anatomic reduction, open or close fractures, presence of other fractures and early or late diagnosis (up to 6 weeks). The incidence of osteoarthritis was then compared in these groups. Results. In 20 patients (45%), post traumatic osteoarthritis occurred. In the 10 patients with non-anatomic reduction, 8 (80%) experienced osteoarthritis, when from the 34 patients with anatomic reduction 12(35%) did so (p = 0.004). Discussion. 9% of the cases were not diagnosed in the 1st visit and 22% attended the hospital with delay. According to the findings, having either open or close fracture or delayed diagnosis up to 6 weeks has no influence on the prevalence of osteoarthritis after trauma, and the only important factor affecting the prevalence of post-traumatic osteoarthritis is anatomic reduction


Bone & Joint Open
Vol. 5, Issue 1 | Pages 46 - 52
19 Jan 2024
Assink N ten Duis K de Vries JPM Witjes MJH Kraeima J Doornberg JN IJpma FFA

Aims

Proper preoperative planning benefits fracture reduction, fixation, and stability in tibial plateau fracture surgery. We developed and clinically implemented a novel workflow for 3D surgical planning including patient-specific drilling guides in tibial plateau fracture surgery.

Methods

A prospective feasibility study was performed in which consecutive tibial plateau fracture patients were treated with 3D surgical planning, including patient-specific drilling guides applied to standard off-the-shelf plates. A postoperative CT scan was obtained to assess whether the screw directions, screw lengths, and plate position were performed according the preoperative planning. Quality of the fracture reduction was assessed by measuring residual intra-articular incongruence (maximum gap and step-off) and compared to a historical matched control group.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_8 | Pages 39 - 39
1 May 2018
Gee C Agarwal S Iliopoulos E Khaleel A
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Introduction. Anatomical reduction of articular fragments in tibial plateau fractures often leads to a void and there is a need to fill dead space and support the articular fragment. MIIG X3 is marketed as high strength injectable graft, which resorbs and remodels fast. Efficacy and complications related to the use of this bone graft substitute were evaluated in this study. Methods. Between January 2012 and December 2016 we injected calcium sulphate (MIIGX3) in 50 out of 126 consecutive complete articular (AO type C3) tibial plateau fractures that were stabilised with Ilizarov ring fixator. Postoperative CT scans after weight bearing and sequential radiographs were evaluated for union, graft resorption and subsidence. IOWA functional outcome score and complications were recorded. Results. The median age was 52 (Range 17–87) years. Post-operative CT scans showed leak of the graft into the joint in 11 patients and around the proximal tibiofibular joint in 2 patients but this disappeared spontaneously in all patients. Average time for graft resorption was 3.1 months. Union occurred in all patients. Minor subsidence was noted in almost half of these patients. There was no significant difference in IOWA knee score between those with or without MIIGX3 at final follow up. (p value > 0.05). Conclusion. MIIGX3 is effective as a void filler providing articular support, eradicating dead space and potentially reducing the risk of infection. Leak in the joint or soft tissue resorbed spontaneously in all cases without complications or need for surgical removal. Its use may also be associated with lack of significant late subsidence


The Bone & Joint Journal
Vol. 95-B, Issue 2 | Pages 230 - 238
1 Feb 2013
Giannoudis PV Kanakaris NK Delli Sante E Morell DJ Stengel D Prevezas N

Over a five-year period, adult patients with marginal impaction of acetabular fractures were identified from a registry of patients who underwent acetabular reconstruction in two tertiary referral centres. Fractures were classified according to the system of Judet and Letournel. A topographic classification to describe the extent of articular impaction was used, dividing the joint surface into superior, middle and inferior thirds. Demographic information, hospitalisation and surgery-related complications, functional (EuroQol 5-D) and radiological outcome according to Matta’s criteria were recorded and analysed. In all, 60 patients (57 men, three women) with a mean age of 41 years (18 to 72) were available at a mean follow-up of 48 months (24 to 206). The quality of the reduction was ‘anatomical’ in 44 hips (73.3%) and ‘imperfect’ in 16 (26.7%). The originally achieved anatomical reduction was lost in12 patients (25.8%). Radiologically, 33 hips (55%) were graded as ‘excellent’, 11 (18.3%) as ‘good’, one (1.7%) as ‘fair’ and 15 (25%) as ‘poor’. A total of 11 further operations were required in 11 cases, of which six were total hip replacements. Univariate linear regression analysis of the functional outcome showed that factors associated with worse pain were increasing age and an inferior location of the impaction. Elevation of the articular impaction leads to joint preservation with satisfactory overall medium-term functional results, but secondary collapse is likely to occur in some patients. Cite this article: Bone Joint J 2013;95-B:230–8


The Journal of Bone & Joint Surgery British Volume
Vol. 92-B, Issue 4 | Pages 560 - 564
1 Apr 2010
Miller AN Prasarn ML Lorich DG Helfet DL

We have examined the accuracy of reduction and the functional outcomes in elderly patients with surgically treated acetabular fractures, based on assessment of plain radiographs and CT scans. There were 45 patients with such a fracture with a mean age of 67 years (59 to 82) at the time of surgery. All patients completed SF-36 questionnaires to determine the functional outcome at a mean follow-up of 72.4 months (24 to 188). All had radiographs and a CT scan within one week of surgery. The reduction was categorised as ‘anatomical’, ‘imperfect’, or ‘poor’. Radiographs classified 26 patients (58%) as anatomical,13 (29%) as imperfect and six (13%) as poor. The maximum displacement on CT showed none as anatomical, 23 (51%) as imperfect and 22 (49%) as poor, but this was not always at the weight-bearing dome. SF-36 scores showed functional outcomes comparable with those of the general elderly population, with no correlation with the radiological reduction. Perfect anatomical reduction is not necessary to attain a good functional outcome in acetabular fractures in the elderly


Bone & Joint Open
Vol. 5, Issue 3 | Pages 236 - 242
22 Mar 2024
Guryel E McEwan J Qureshi AA Robertson A Ahluwalia R

Aims

Ankle fractures are common injuries and the third most common fragility fracture. In all, 40% of ankle fractures in the frail are open and represent a complex clinical scenario, with morbidity and mortality rates similar to hip fracture patients. They have a higher risk of complications, such as wound infections, malunion, hospital-acquired infections, pressure sores, veno-thromboembolic events, and significant sarcopaenia from prolonged bed rest.

Methods

A modified Delphi method was used and a group of experts with a vested interest in best practice were invited from the British Foot and Ankle Society (BOFAS), British Orthopaedic Association (BOA), Orthopaedic Trauma Society (OTS), British Association of Plastic & Reconstructive Surgeons (BAPRAS), British Geriatric Society (BGS), and the British Limb Reconstruction Society (BLRS).


The Bone & Joint Journal
Vol. 105-B, Issue 6 | Pages 688 - 695
1 Jun 2023
Johnston GHF Mastel M Sims LA Cheng Y

Aims

The aims of this study were to identify means to quantify coronal plane displacement associated with distal radius fractures (DRFs), and to understand their relationship to radial inclination (RI).

Methods

From posteroanterior digital radiographs of healed DRFs in 398 female patients aged 70 years or older, and 32 unfractured control wrists, the relationships of RI, quantifiably, to four linear measurements made perpendicular to reference distal radial shaft (DRS) and ulnar shaft (DUS) axes were analyzed: 1) DRS to radial aspect of ulnar head (DRS-U); 2) DUS to volar-ulnar corner of distal radius (DUS-R); 3) DRS to proximal capitate (DRS-PC); and 4) DRS to DUS (interaxis distance, IAD); and, qualitatively, to the distal ulnar fracture, and its intersection with the DUS axis.


Aims

Ankle fracture fixation is commonly performed by junior trainees. Simulation training using cadavers may shorten the learning curve and result in a technically superior surgical performance.

Methods

We undertook a preliminary, pragmatic, single-blinded, multicentre, randomized controlled trial of cadaveric simulation versus standard training. Primary outcome was fracture reduction on postoperative radiographs.


The Bone & Joint Journal
Vol. 105-B, Issue 1 | Pages 72 - 81
1 Jan 2023
Stake IK Ræder BW Gregersen MG Molund M Wang J Madsen JE Husebye EE

Aims

The aim of this study was to compare the functional and radiological outcomes and the complication rate after nail and plate fixation of unstable fractures of the ankle in elderly patients.

Methods

In this multicentre study, 120 patients aged ≥ 60 years with an acute unstable AO/OTA type 44-B fracture of the ankle were randomized to fixation with either a nail or a plate and followed for 24 months after surgery. The primary outcome measure was the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot score. Secondary outcome measures were the Manchester-Oxford Foot Questionnaire, the Olerud and Molander Ankle score, the EuroQol five-dimension questionnaire, a visual analogue score for pain, complications, the quality of reduction of the fracture, nonunion, and the development of osteoarthritis.


The Journal of Bone & Joint Surgery British Volume
Vol. 92-B, Issue 2 | Pages 246 - 249
1 Feb 2010
Jain AK Dhammi IK Singh AP Mishra P

The optimal method for the management of neglected traumatic bifacetal dislocation of the subaxial cervical spine has not been established. We treated four patients in whom the mean delay between injury and presentation was four months (1 to 5). There were two dislocations at the C5-6 level and one each at C4-5 and C3-4. The mean age of the patients was 48.2 years (27 to 60). Each patient presented with neck pain and restricted movement of the cervical spine. Three of the four had a myelopathy. We carried out a two-stage procedure under the same anaesthetic. First, a posterior soft-tissue release and partial facetectomy were undertaken. This allowed partial reduction of the dislocation which was then supplemented by interspinous wiring and corticocancellous graft. Next, through an anterior approach, discectomy, tricortical bone grafting and anterior cervical plating were carried out. All the patients achieved a nearly anatomical reduction and sagittal alignment. The mean follow-up was 2.6 years (1 to 4). The myelopathy settled completely in the three patients who had a pre-operative neurological deficit. There was no graft dislodgement or graft-related problems. Bony fusion occurred in all patients and a satisfactory reduction was maintained. The posteroanterior procedure for neglected traumatic bifacetal dislocation of the subaxial cervical spine is a good method of achieving sagittal alignment with less risk of iatrogenic neurological injury, a reduced operating time, decreased blood loss, and a shorter hospital stay compared with other procedures


The Journal of Bone & Joint Surgery British Volume
Vol. 88-B, Issue 6 | Pages 776 - 782
1 Jun 2006
Kreder HJ Rozen N Borkhoff CM Laflamme YG McKee MD Schemitsch EH Stephen DJG

We have evaluated the functional, clinical and radiological outcome of patients with simple and complex acetabular fractures involving the posterior wall, and identified factors associated with an adverse outcome. We reviewed 128 patients treated operatively for a fracture involving the posterior wall of the acetabulum between 1982 and 1999. The Musculoskeletal Functional Assessment and Short-Form 36 scores, the presence of radiological arthritis and complications were assessed as a function of injury, treatment and clinical variables. The patients had profound functional deficits compared with the normal population. Anatomical reduction alone was not sufficient to restore function. The fracture pattern, marginal impaction and residual displacement of > 2 mm were associated with the development of arthritis, which related to poor function and the need for hip replacement. It may be appropriate to consider immediate total hip replacement for patients aged > 50 years with marginal impaction and comminution of the wall, since 7 of 13 (54%) of these required early hip replacement


The Journal of Bone & Joint Surgery British Volume
Vol. 92-B, Issue 6 | Pages 842 - 852
1 Jun 2010
Tannast M Krüger A Mack PW Powell JN Hosalkar HS Siebenrock KA

Surgical dislocation of the hip in the treatment of acetabular fractures allows the femoral head to be safely displaced from the acetabulum. This permits full intra-articular acetabular and femoral inspection for the evaluation and potential treatment of cartilage lesions of the labrum and femoral head, reduction of the fracture under direct vision and avoidance of intra-articular penetration with hardware. We report 60 patients with selected types of acetabular fracture who were treated using this approach. Six were lost to follow-up and the remaining 54 were available for clinical and radiological review at a mean follow-up of 4.4 years (2 to 9). Substantial damage to the intra-articular cartilage was found in the anteromedial portion of the femoral head and the posterosuperior aspect of the acetabulum. Labral lesions were predominantly seen in the posterior acetabular area. Anatomical reduction was achieved in 50 hips (93%) which was considerably higher than that seen in previous reports. There were no cases of avascular necrosis. Four patients subsequently required total hip replacement. Good or excellent results were achieved in 44 hips (81.5%). The cumulative eight-year survivorship was 89.0% (95% confidence interval 84.5 to 94.1). Significant predictors of poor outcome were involvement of the acetabular dome and lesions of the femoral cartilage greater than grade 2. The functional mid-term results were better than those of previous reports. Surgical dislocation of the hip allows accurate reduction and a predictable mid-term outcome in the management of these difficult injuries without the risk of the development of avascular necrosis


The Bone & Joint Journal
Vol. 96-B, Issue 9 | Pages 1252 - 1257
1 Sep 2014
Habib M Tanwar YS Jaiswal A Singh SP Sinha S lal H

In order to achieve satisfactory reduction of complex distal humeral fractures, adequate exposure of the fracture fragments and the joint surface is required. Several surgical exposures have been described for distal humeral fractures. We report our experience using the anconeus pedicle olecranon flip osteotomy approach. This involves detachment of the triceps along with a sliver of olecranon, which retains the anconeus pedicle. We report the use of this approach in ten patients (six male, four female) with a mean age of 38.4 years (28 to 51). The mean follow-up was 15 months (12 to 18) with no loss to follow-up. Elbow function was graded using the Mayo Score. The results were excellent in four patients, good in five and fair in one patient. The mean time to both fracture and osteotomy union was 10.6 weeks (8 to 12) and 7.1 weeks (6 to 8), respectively. We found this approach gave reliably good exposure for these difficult fractures enabling anatomical reduction and bicondylar plating without complications. . Cite this article: Bone Joint J 2014;96-B:1252–7


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_16 | Pages 76 - 76
1 Apr 2013
Kitahara J Yamazaki H Kodaira H Seino S Akaoka Y
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Introduction. An important factor in the internal fixation of pertrochanteric fractures is the ability to maintain postoperative reduction. Excessive postoperative sliding of the lag screw or blade may result in reduction loss. We retrospectively analyzed the relationship between postoperative reduction and sliding. Methodology. From Oct. 2009 to Sept. 2011, we treated pertrochanteric fractures using J-PFNA (Synthes) and InterTAN (Smith & Nephew) in 91 cases and 82 cases, respectively. We used postoperative radiographs to classify its reduction. Fractures were classified for its interfragmentary contact using the calcar femorale as a reference on the A-P plane while using the anterior cortex as a reference on the M-L plane. Results. PFNA cases showed greater postoperative sliding than InterTAN cases. Both demonstrated greater sliding when the proximal fragment was positioned inside the medullary canal on the M-L plane than when positioned outside or anatomically. Conclusion. Although the InterTAN can maintain greater initial stability necessary for early weight-bearing, both implants demonstrate the loss of interfragmentary contact when the proximal fragment is positioned inside the medullary canal on the M-L plane resulting in greater risk of reduction loss. In order to maintain postoperative reduction, either anatomical reduction or reducing the proximal fragment outside the medullary canal is advised; no matter what type of internal fixation implants are used


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_16 | Pages 42 - 42
1 Apr 2013
Medlock G Wohlgemut J Stevenson I Johnstone A
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Intro. Distal radial fractures are a commonly encountered fracture & anatomical reduction is the standard. Dorsal angulation is the traditional method of assessment but is inaccurate in rotated lateral xrays. Previously a relationship has been demonstrated between the dorsal cortex (DC) of the radius & the superior pole of the lunate (SL) & its sensitivity for assessing dorsal angulation & translation. Hypothesis. A constant anatomical relationship maintained between the DC and the SL when rotated up to 30 degrees from standard lateral?. Methods. MRI scans of 28 wrists including the distal third of the radius to the proximal carpal row. Beginning 5cm proximal to the distal radius articular surface, a line was superimposed upon the DC extending distally through the metaphysis. Lunate height (LH) & distance from the DC line to the SL (DC-SL) were measured at 5-degree rotational increments around the radial shaft central axis to 30 degrees of supination & pronation (S+P). The DC-SL/LH ratio was compared to 0 degrees (anatomical lateral) using the two-tailed paired student t-test. Results. No significant difference in DC-SL:LH between 0 degrees of rotation and any 5-degree increment up to 30 degrees of S+P (lowest p=0.075). The DC line lay consistently dorsal to the SL. Conclusion. A constant DC-SL relationship is maintained with up to 30 degrees of S+P. This reference can be quickly and accurately used to assess DRF reduction in poorly-taken films with malrotation