Advertisement for orthosearch.org.uk
Results 1 - 20 of 158
Results per page:
Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_12 | Pages 19 - 19
10 Jun 2024
Moriarity A Raglan M Dhar S
Full Access

Background

Patients who undergo either primary or revision total ankle replacement (TAR) expect improvements in pain, function and quality of life. The goal of this study was to measure the functional outcome improvements and the difference in patient-reported outcomes in patients undergoing primary total ankle replacements compared to revision TAR.

Methods

A single-center prospective cohort study was undertaken between 2016 and 2022. All patients were followed up for a minimum of 6 months. Patients undertook the Manchester Oxford Foot Questionnaire (MoxFQ) and EQ-5D health quality questionnaires pre-operatively, at 6 months and yearly for life. The Mann Whitney test was undertaken for statistical analysis.


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_7 | Pages 22 - 22
8 May 2024
Brookes M Kakwani R Townshend D Murty A
Full Access

Background

Traditionally, the extended lateral approach (ELA) was the favoured approch for calcaneal fractures, but has been reported to have high incidence of wound complications. There has been a move amongst surgeons in the United Kingdom towards the sinus tarsi approach (STA) due to its minimally invasive nature, attempting to reduce such complications.

Aims

To evaluate outcomes of ELA and STA for all consecutive calcaneal fracture fixation in our institution over a 10yr period.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_2 | Pages 10 - 10
1 Jan 2014
Walker T Akhtar S Henderson A
Full Access

Introduction:. The os-calcis is the most common tarsal bone to fracture. It can lead to a debilitating arthritis and has considerable socio-economic implications. In the literature there is great debate as to whether operative or non-operative management has a better outcome. Previous smaller case series report improved results from surgery whereas the one randomised trial showed no overall benefit from surgery. However sub-group analysis identified patients that had a better outcome with operative management. Results from the UK heel fracture trial are awaited. We present a 5 year series from a single centre, single surgeon that includes 143 fractures. There are currently no comparable published data. Methods:. We reviewed 143 intra-articular fractures of the os calcis. All fractures were evaluated using CT scans and classified according to Sanders system. The functional outcome of Sanders type 2 fractures were evaluated using Atkins scoring system. Evaluation took place annually between 2 and 7 years post injury. A comparison was made between type 2 fractures treated operatively and those treated non-operatively. Results:. 143 patients with Type 2 sanders fractures were reviewed from 2 years to 7 years post injury. 109 patients were treated operatively, 34 patients were treated non-operatively. The mean score for 2 part fractures treated operatively was 76.52 (range 73–78 SD +/− 2.9). The mean score for 2 part fractures treated non-operatively was 60.88 (range 59–69 SD +/− 5.76). The mean difference in scores was 15.64. This was stastiscally significant. CI (11.4–19.24) P < 0.05. Conclusion:. Data from our single centre, single surgeon series showed that patients with 2 part os calcis fractures have significantly better functional outcome than those managed non-operatively. This is in keeping with smaller data sets in the published literature


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_2 | Pages 28 - 28
1 Jan 2014
Bass E Sirikonda S Walker C
Full Access

Introduction:. Techniques devised for 1. st. MTPJ arthrodesis have been described since 1979 when Humbert et al published a ‘tongue and trough’ technique. Common contemporary techniques include fixation with single or crossed screws, or dorsal plates and these are suitable for a variety of indications. All three contemporary techniques have demonstrated a wide range of fusion rates. This study reports a comparison of non-union rates of the 1. st. metatarsophalangeal joint (MTPJ) with the current Memometal Anchorage™ dorsal plate system and the previous Hallu-fix™ and Charlotte™ systems. Methods:. Between 01/2009 and 07/2012 174 consecutive 1. st. MTPJ fusions were performed for 153 patients (Mean age 62, range 42 to 83) by three surgeons at one University teaching hospital. 40 patients (23%) were male and 132 (77%) female. Patients without available radiographs were excluded from the study. 20 patients received Hallu-fix™ plates, 76 Charlotte™ plates and 76 Memometal Anchorage™. Radiographs of the feet were taken from four weeks postoperatively and reviewed for incomplete bone bridging and increased radiolucency around screws. Results:. 12 (7.0%) non-unions were identified in total during followup. A single (5.0%) Hallu-fix™ system, 9 (11.8%) Charlotte™ systems and 2 (2.6%) Memometal Anchorage™ plating systems did not develop a satisfactory fusion. Typical followup in patients in whom there were no postoperative complications and who developed satisfactory bony union was 12 weeks. Those with non-unions were followed until revision procedures were successful. Conclusion:. The total non-union rate of this centre during the period compares favourably with published literature suggesting the technique is suitable for numerous indications in 1. st. MTPJ fusion. With a non-union rate of 5.0%, the Hallu-fix™ shows favourable results when compared authors using the same system. The Charlotte™ system demonstrated an 11.8% non-union rate, comparing poorly with published literature. The Memometal Anchorage™ system, with a non-union rate of 2.6%, demonstrated promising results


The Bone & Joint Journal
Vol. 95-B, Issue 8 | Pages 1075 - 1082
1 Aug 2013
Choi GW Kim HJ Yeo ED Song SY

In a retrospective study we compared 32 HINTEGRA total ankle replacements (TARs) and 35 Mobility TARs performed between July 2005 and May 2010, with a minimum follow-up of two years. The mean follow-up for the HINTEGRA group was 53 months (24 to 76) and for the Mobility group was 34 months (24 to 45). All procedures were performed by a single surgeon.

There was no significant difference between the two groups with regard to the mean AOFAS score, visual analogue score for pain or range of movement of the ankle at the latest follow-up. Most radiological measurements did not differ significantly between the two groups. However, the most common grade of heterotopic ossification (HO) was grade 3 in the HINTEGRA group (10 of 13 TARs, 76.9%) and grade 2 in the Mobility group (four of seven TARs, 57.1%) (p = 0.025). Although HO was more frequent in the HINTEGRA group (40.6%) than in the Mobility group (20.0%), this was not statistically significant (p = 0.065).The difference in peri-operative complications between the two groups was not significant, but intra-operative medial malleolar fractures occurred in four (11.4%) in the Mobility group; four (12.5%) in the HINTEGRA group and one TAR (2.9%) in the Mobility group failed (p = 0.185).

Cite this article: Bone Joint J 2013;95-B:1075–82.


Aims

The purpose of this study was to compare the clinical and radiographic outcomes of total ankle arthroplasty (TAA) in patients with pre-operatively moderate and severe arthritic varus ankles to those achieved for patients with neutral ankles.

Patients and Methods

A total of 105 patients (105 ankles), matched for age, gender, body mass index, and follow-up duration, were divided into three groups by pre-operative coronal plane tibiotalar angle; neutral (< 5°), moderate (5° to 15°) and severe (> 15°) varus deformity. American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, a visual analogue scale (VAS), and Short Form (SF)-36 score were used to compare the clinical outcomes after a mean follow-up period of 51 months (24 to 147).


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_2 | Pages 1 - 1
1 Jan 2014
Wong F Mushtaq N Jones I Singh S Abbasian A
Full Access

Introduction:

Recent published studies have examined the normal dimensions of the syndesmosis on CT. However, previous anatomical studies have shown variations of the articulating facets within the tibialae fibularis and may contribute to the false appearance of increased spacing within the syndesmosis. In this study, we measured and compared anterior and posterior distances of the distal tibiofibular(DTF) syndesmosis on MRI and CT imaging.

Methods:

We identified adult patients who had had both a CT scan and an MRI scan of their ipsilateral ankle to investigate symptoms unrelated to the DTF syndesmosis. The anterior and the posterior DTF dimensions were measured on CT and MRI axial images, at the level of the distal tibial physeal scar. This was taken from anterior tubercle of tibia and from the most anterior aspect of the posterior tibial tubercle to the nearest point of medial aspect of the fibula. The geometrical shapes of the syndesmosis and the anterior tibial tubercle were also recorded.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_17 | Pages 10 - 10
1 Nov 2014
Mason L Dave M Hariharan K
Full Access

Introduction:

All reported RA forefoot deformities in the literature so far have arisen from shoe wearing populations. Our aim in this study was to compare hallucal deformities seen in a shod to a non-shod population.

Methods:

A case-control study was undertaken in two specialist foot and ankle units, one in India and one in the UK. All patients suffering from RA and attending for consideration of forefoot surgery from January 2007 to October 2013 were included in this study. Standardized anteroposterior weight bearing radiographs were obtained to measure the hallux valgus, inter-metatarsal and metatarsus primus varus angles.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XLIII | Pages 60 - 60
1 Sep 2012
Abbassian A Zaidi R Guha A Cullen N Singh D
Full Access

Introduction

Calcaneal osteotomy is often performed together with other procedures to correct hindfoot deformity. There are various methods of fixation ranging from staples, headed or headless screws or more recently stepped locking plates. It is not clear if one method is superior to the other. In this series we compare the outcome of various methods of fixation with particular attention to the need for subsequent hardware removal.

Patients and Methods

A retrospective review of the records of a consecutive series of patients who had a calcaneal osteotomy performed in our unit within the last 5 years was undertaken. All patients had had their osteotomy through an extended lateral approach to their calcaneous. The subsequent fixation was performed using one of three methods; a lateral plate placed through the same incision; a ‘headless’; or a ‘headed’ screw through a separate stab incision inserted through the infero-posterior heel. Records were kept of subsequent symptoms from the hardware and need for metalwork removal as well as any complications. When screws were inserted the entry point in relation to the weight-bearing surface of the calcaneous was also recorded.


The Bone & Joint Journal
Vol. 95-B, Issue 5 | Pages 649 - 656
1 May 2013
Park C Jang J Lee S Lee W

The purpose of this study was to compare the results of proximal and distal chevron osteotomy in patients with moderate hallux valgus.

We retrospectively reviewed 34 proximal chevron osteotomies without lateral release (PCO group) and 33 distal chevron osteotomies (DCO group) performed sequentially by a single surgeon. There were no differences between the groups with regard to age, length of follow-up, demographic or radiological parameters. The clinical results were assessed using the American Orthopaedic Foot and Ankle Society (AOFAS) scoring system and the radiological results were compared between the groups.

At a mean follow-up of 14.6 months (14 to 32) there were no significant differences in the mean AOFAS scores between the DCO and PCO groups (93.9 (82 to 100) and 91.8 (77 to 100), respectively; p = 0.176). The mean hallux valgus angle, intermetatarsal angle and sesamoid position were the same in both groups. The metatarsal declination angle decreased significantly in the PCO group (p = 0.005) and the mean shortening of the first metatarsal was significantly greater in the DCO group (p < 0.001).

We conclude that the clinical and radiological outcome after a DCO is comparable with that after a PCO; longer follow-up would be needed to assess the risk of avascular necrosis.

Cite this article: Bone Joint J 2013;95-B:649–56.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XLIII | Pages 14 - 14
1 Sep 2012
Morgan S Jones C Palmer S
Full Access

Open cheilectomy is an established surgical treatment for hallux rigidus. Cheilectomy is now being performed using minimally invasive (MIS) techniques. In this prospective study we report the outcome of minimally invasive cheilectomy comparing the results with a matched group who had cheilectomy using standard open procedure

Methods

Prospective study of 47 patients. 22 patients had MIS cheilectomy between March 2009 and September 2010. We compared the outcome with a matched group (25 patients) who had open cheilectomy. Functional outcome was assessed using the Manchester Oxford Foot and ankle questionnaire (MOXFQ). The MOXFQ is a validated questionnaire designed to be self-completed and used as an outcome measure for foot surgery. Patients' satisfaction and complications were recorded.

Results

In the MIS group, the median follow up was 11 months (4–23). The median preoperative MOXFQ score was 34/64(23) and the median postoperative score was 19/64 (p = <0.02). In the open group the median follow up was 17 months (9–27). The median preoperative MOXFQ score was 35/64 and the median postoperative score was 7.5/64 (p = <0.0001). The metric score of the three domains of the MOXFQ showed statistical improvement in both groups. The improvement didn't reach statistical significance between the open and MIS groups. There were three failures in the open group (Fusion) compared to none in the MIS.


Moderate to severe hallux valgus is conventionally treated by proximal metatarsal osteotomy. Several recent studies have shown that the indications for distal metatarsal osteotomy with a distal soft-tissue procedure could be extended to include moderate to severe hallux valgus.

The purpose of this prospective randomised controlled trial was to compare the outcome of proximal and distal Chevron osteotomy in patients undergoing simultaneous bilateral correction of moderate to severe hallux valgus.

The original study cohort consisted of 50 female patients (100 feet). Of these, four (8 feet) were excluded for lack of adequate follow-up, leaving 46 female patients (92 feet) in the study. The mean age of the patients was 53.8 years (30.1 to 62.1) and the mean duration of follow-up 40.2 months (24.1 to 80.5). After randomisation, patients underwent a proximal Chevron osteotomy on one foot and a distal Chevron osteotomy on the other.

At follow-up, the American Orthopedic Foot and Ankle Society (AOFAS) hallux metatarsophalangeal interphalangeal (MTP-IP) score, patient satisfaction, post-operative complications, hallux valgus angle, first-second intermetatarsal angle, and tibial sesamoid position were similar in each group. Both procedures gave similar good clinical and radiological outcomes.

This study suggests that distal Chevron osteotomy with a distal soft-tissue procedure is as effective and reliable a means of correcting moderate to severe hallux valgus as proximal Chevron osteotomy with a distal soft-tissue procedure.

Cite this article: Bone Joint J 2015;97-B:202–7.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XLIII | Pages 67 - 67
1 Sep 2012
Morgan S Roushdi I Benerjee R Palmer S
Full Access

Introduction

Symptomatic hallux valgus is a common clinical problem, current trends is towards minimally invasive procedures. The goal of this study is to evaluate the outcome of minimally invasive chevron ostoetomy, comparing it with a matched group who had open chevron osteotomy.

Methods

Prospective study, 54 patients. MIS group 25 patients between October 2009 and November 2010. Open group 29 patients between Feb 2008 and October 2010. Inclusion criteria included, mild to moderate hallux valgus, no previous history of foot surgery, no history of inflammatory arthritis, or MTPJ arthritis. All the operations were performed by the senior author. Functional outcome and pain were evaluated using pre and post operative Manchester Oxford Foot and ankle questionnaire (MOXFQ). IMA and HVA, avascular necrosis and union were assessed. Complications and satisfaction were recorded.


Severe hallux valgus deformity is conventionally treated with proximal metatarsal osteotomy. Distal metatarsal osteotomy with an associated soft-tissue procedure can also be used in moderate to severe deformity. We compared the clinical and radiological outcomes of proximal and distal chevron osteotomy in severe hallux valgus deformity with a soft-tissue release in both. A total of 110 consecutive female patients (110 feet) were included in a prospective randomised controlled study. A total of 56 patients underwent a proximal procedure and 54 a distal operation. The mean follow-up was 39 months (24 to 54) in the proximal group and 38 months (24 to 52) in the distal group. At follow-up the hallux valgus angle, intermetatarsal angle, distal metatarsal articular angle, tibial sesamoid position, American Orthopaedic Foot and Ankle Society (AOFAS) hallux metatarsophalangeal-interphalangeal score, patient satisfaction level, and complications were similar in each group. Both methods showed significant post-operative improvement and high levels of patient satisfaction. Our results suggest that the distal chevron osteotomy with an associated distal soft-tissue procedure provides a satisfactory method for correcting severe hallux valgus deformity.

Cite this article: Bone Joint J 2013;95-B:510–16.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_17 | Pages 33 - 33
1 Nov 2014
Brookes-Fazakerley S Howard N Harvey D Platt S Jackson G
Full Access

Introduction:

Diabetic ulcer superficial swab cultures have a low specificity for guiding antibiotic treatment. Some studies have recently re-assessed and advocated the role of superficial swabs. We have performed an analysis of microbiology results in patients with infected diabetic ulcers to further appraise the need for using deep tissue cultures as a guide for antimicrobial treatment.

Methods:

We reviewed 23 consecutive diabetic patients in 2013. All patients underwent investigation and treatment by the Orthopaedic department for deep, intractable diabetic ulceration. Microbiology culture results from superficial swabs were compared to deep tissue and bone biopsies.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_17 | Pages 6 - 6
1 Nov 2014
Rudge W Welck M Rudge B Goldberg A
Full Access

The National Joint Registry (NJR) was established in 2003, and was extended to include ankle arthroplasty on 1st April 2010, and shoulder and elbow arthroplasty in April 2012.

The aim of this study was to evaluate the uptake of the NJR for ankle arthroplasty over its first 3 years. This is compared to the first 3 years of hip and knee data, and the first year of shoulder and elbow data.

The methods of measuring compliance are also evaluated. NJR compliance is measured by comparing the number of procedures submitted to the NJR, against the number of levies raised through implant sales. This applies to all of the UK, and both independent and NHS providers. However, compliance can also be measured by comparing NJR submissions with data submitted to the Hospital Episode Statistics (HES) database. This only relates to NHS institutions in England.

The NJR ankle data was compared to implant data, and adjusted to compare to HES data, to evaluate the different methods of measuring compliance.

We also compared these figures with the first 3 years for hip and knee arthroplasties and the first year for shoulder and elbow arthroplasties.

Results:

In 2011 there were 493 arthroplasties and the compliance was 64% against industry data. In 2012 there were 590 procedures with compliance improved to 77% against industry data. When adjusting NJR to compare with HES data, the compliance was 87% in 2012., with 507 ankle arthroplasties registered with the NJR and 582 on HES data. The reasons for this discrepancy are discussed. The specific difficulties of capturing ankle revisions are discussed, as some get revised to arthrodeses.

The uptake is significantly higher than the first year for all other joints (shoulders 52%, hips 57%, knees 57%, and elbows 60%).


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_12 | Pages 18 - 18
10 Jun 2024
Haston S Langton D Townshend D Bhalekar R Joyce T
Full Access

Despite advancements, revision rates following total ankle replacement (TAR) are high in comparison to other total joint replacements. This explant analysis study aimed to investigate whether there was appreciable metal particulate debris release from various contemporary TARs by describing patterns of material loss. Twenty-eight explanted TARs (9 designs: 3 fixed and 6 mobile bearing), revised for any reason, were studied. The articulating surfaces of the metal tibial and talar components as well as the polyethylene insert were assessed for damage features using light microscopy. Based on the results of the microscopic analysis, scanning electron microscopy with energy dispersive X-ray spectroscopy was performed to determine the composition of embedded debris identified, as well as non-contacting 3D profilometry. Pitting, indicative of material loss, was identified on the articulating surfaces of 54% of tibial components and 96% of talar components. Bearing constraint was not found to be a factor, with similar proportions of fixed and mobile bearing metal components showing pitting. More cobalt-chromium than titanium alloy tibial components exhibited pitting (63% versus 20%). Significantly higher average surface roughness (Sa) values were measured for pitted areas in comparison to unpitted areas of these metal components (p<0.05). Additionally, metallic embedded debris (cobalt-chromium likely due to pitting of the tibial and talar components or titanium likely from loss of their porous coatings) was identified in 18% of polyethylene inserts. The presence of hard 3. rd. body particles was also indicated by macroscopically visible sliding plane scratching, identified on 79% of talar components. This explant analysis study demonstrates that metal debris is released from the articulating surfaces and the coatings of various contemporary TARs, both fixed and mobile bearing. These findings suggest that metal debris release in TARs may be an under-recognised issue that should be considered in the study of painful or failed TAR moving forwards


Bone & Joint Open
Vol. 5, Issue 11 | Pages 1037 - 1040
15 Nov 2024
Wu DY Lam EKF

Aims. The first metatarsal pronation deformity of hallux valgus feet is widely recognized. However, its assessment relies mostly on 3D standing CT scans. Two radiological signs, the first metatarsal round head (RH) and inferior tuberosity position (ITP), have been described, but are seldom used to aid in diagnosis. This study was undertaken to determine the reliability and validity of these two signs for a more convenient and affordable preoperative assessment and postoperative comparison. Methods. A total of 200 feet were randomly selected from the radiograph archives of a foot and ankle clinic. An anteroposterior view of both feet was taken while standing on the same x-ray platform. The intermetatarsal angle (IMA), metatarsophalangeal angle (MPA), medial sesamoid position, RH, and ITP signs were assessed for statistical analysis. Results. There were 127 feet with an IMA > 9°. Both RH and ITP severities correlated significantly with IMA severity. RH and ITP were also significantly associated with each other, and the pronation deformities of these feet are probably related to extrinsic factors. There were also feet with discrepancies between their RH and ITP severities, possibly due to intrinsic torsion of the first metatarsal. Conclusion. Both RH and ITP are reliable first metatarsal pronation signs correlating to the metatarsus primus varus deformity of hallux valgus feet. They should be used more for preoperative and postoperative assessment. Cite this article: Bone Jt Open 2024;5(11):1037–1040


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_7 | Pages 23 - 23
8 May 2024
Jayatilaka M Fisher A Fisher L Molloy A Mason L
Full Access

Introduction. The treatment of posterior malleolar fractures is developing. Mason and Molloy (Foot Ankle Int. 2017 Nov;38(11):1229-1235) identified only 49% of posterior malleolar rotational pilon type fractures had syndesmotic instabilities. This was against general thinking that fixation of such a fragment would stabilize the syndesmosis. Methods. We examined 10 cadaveric lower limbs that had been preserved for dissection at the Human Anatomy and Resource Centre at Liverpool University in a solution of formaldehyde. The lower limbs were carefully dissected to identify the ligamentous structures on the posterior aspect of the ankle. To compare the size to the rotational pilon posterior malleolar fracture (Mason and Molloy 2A and B) we gathered information from our posterior malleolar fracture database. 3D CT imaging was analysed using our department PACS system. Results. The PITFL insertion on the posterior aspect of the tibia is very large. The average size of insertion was 54.9×47.1mm across the posterior aspect of the tibia. Medially the PITFL blends into the sheath of tibialis posterior and laterally into the peroneal tendon sheath. 78 posterior lateral and 35 posterior medial fragments were measured. On average, the lateral to medial size of the posteromalleolar fragment was 24.5mm in the posterolateral fragment, and 43mm if there is a posteromedial fragment present also. The average distal to proximal size of the posterolateral fragment was 24.5mm and 18.5mm for the posteromedial fragment. Conclusion. The PITFL insertion on the tibia is broad. In comparison to the average size of the posterior malleolar fragments, the PITFL insertion is significantly bigger. Therefore, for a posterior malleolar fracture to cause posterior syndesmotic instability, a ligamentous injury will also have to occur. This explains the finding by Mason and Molloy that only 49% of type 2 injuries had a syndesmotic injury on testing


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_11 | Pages 5 - 5
4 Jun 2024
Ubillus H Mattos I Campos G Soares S Kennedy J
Full Access

Introduction. Tibial nerve anatomy has not been studied profoundly in comparison to Tarsal Tunnel Syndrome (TTS). Assuming symptoms are caused by an anatomical variant or mechanical cause regarding the tibial nerve, it is essential to investigate the anatomy of this structure taking in consideration that surgical and conservative treatments have shown poor results. Methods. 40 lower-leg specimens were obtained. Dissection started 20 centimeters proximal to the Dellon-McKinnon (DM) line towards the medial aspect of the naviculo-cuneiform joint distally. Anteriorly, dissection began at the tibio-talar medial gutter until the medial aspect of the Achilles tendon posteriorly. The plantar aspect extended from medial to lateral within the parameters previously described, ending at the level of the second metatarsal. Results. The flexor retinaculum had a denser consistency in 22.5% of the cases and the average length was 51.9 mm. The flexor retinaculum as an independent structure was found absent and 77.2% of cases as undistinguished extension of the crural fascia. The lateral plantar nerver (LPN) and abductor digiti minimi (ADM) nerve shared same origin in 80% of cases, 34.5% bifurcated proximal to the DM line, 31.2% distally and 34.3% at the same level. The medial calcaneal nerve (MCN) emerged proximal to the DM line in 100% of specimens. The medial plantar nerve (MPN) has its origin proximal to the DM line in 95% of cases. Conclusion. The flexor retinaculum is an extension of the crural fascia and not an independent structure. The LPN and ADM have the same origin in most cases and this presents as an important finding that must be studied in detail for clinical correlations between the motor and sensatory affections of the ADM and LPN respectively. Finally, the branches of the MCN and MPN are the most constant in their distribution and proximal origin in relation to the Dellon-McKinnon line