Phone & video consultations · Private care in Huddersfield07427 297799

Research & teaching

Clinical practice.
Academic perspective.

Trauma research, functional recovery and education, alongside specialist orthopaedic practice.

Research library

Published work & working papers.

Published articles, working manuscripts and study proposals are listed separately. A working paper is not a peer-reviewed treatment recommendation.

Published research

Published research

Volume fusion of CT images to measure femoral symmetricity

Small anatomical imaging study using ten adult CT datasets to compare mirrored femurs. Supports investigation of the opposite femur as a planning template, while sample size and anatomical variation limit generalisation.

Publisher version of record 28 November 2019; Surg Radiol Anat 42, 635–639 (2020).

Published research

Three Dimensional Quality Assessments of Applied Pelvic Binders

Retrospective registry study of 73 patients assesses pelvic binder placement using reconstructed CT images. It is an emergency care quality study, not a patient rehabilitation protocol.

Bull Emerg Trauma. 2019 Apr;7(2):156–161; PMID 31198805.

Published research

A New CT Based Method for Post-operative Motion Analysis of Pelvic Fractures

Laboratory study compares CT bone registration and tantalum-marker registration in a pelvic fracture model. Clinical follow-up applications are exploratory in this source.

3D Research 10, Article 7 (2019); publisher publication date 29 January 2019. CORR submission title 'A Novel Motion Analysis in a Pelvic Injury Model' is a related earlier version.

Published research

The pelvic fracture – Indicator of injury severity or lethal fracture?

Observational trauma study examining whether pelvic fracture independently predicts mortality or reflects the wider severity of injury.

Injury. 2018 Aug;49(8):1568–1571. PMID 29909925. Drive draft title 'Pelvic Fracture, Killing Bone or an Indicator of Severe Injury' matches authors and study.

Published research

A novel 3D technique to assess symmetry of hemi pelvises

Imaging study of ten CT datasets assessing pelvic symmetry using mirroring and merging. It explores contralateral templating for reconstruction.

Scientific Reports 10, 18789 (2020), published 2 November 2020.

Published research

Factors affecting mortality and reoperations in high-energy pelvic fractures

Swedish registry study of 385 high-energy pelvic and acetabular injuries; describes mortality predictors and reoperations. The cohort results should not be shown as the user's current individual complication rate.

Eur J Orthop Surg Traumatol. 2018 Oct;28(7):1273–1282; DOI 10.1007/s00590-018-2203-1; PMID 29675632.

Published research

A novel technique to assess rotational deformities in lower extremities

A digital CT-based anatomical study investigates assessment of lower-leg rotational deformity. Its findings support further evaluation of 3D registration methods for reconstruction planning; it does not replace individualized clinical and imaging assessment.

Scientific Reports 11, 21123 (2021), published 26 October 2021.

Published research

Experience and availability of pelvic binders at Swedish trauma units: a nationwide survey

A nationwide survey examines availability of pelvic binders and clinicians' experience and knowledge of their use. It addresses emergency trauma systems and training.

Bulletin of Emergency & Trauma 2018;6(3):221–225.

Published research

Predictors of extended length of stay after unicompartmental knee arthroplasty

A retrospective study examines factors associated with a longer hospital stay after unicompartmental knee arthroplasty. It provides research context for perioperative planning, rather than a personalized risk estimate.

Journal of Clinical Orthopaedics and Trauma 2020;11(Suppl 2):S239–S245; online 11 September 2019. The published author order differs from an earlier archive draft.

Published research

Should we routinely perform a postoperative haemoglobin check following unicompartmental knee arthroplasty?

A retrospective case series evaluates postoperative haemoglobin monitoring after unicompartmental knee arthroplasty. The research addresses testing decisions in a defined surgical cohort.

The Knee 2020;27(1):249–256.

Published research

Intramedullary Fibular Nail Versus Plate Fixation for Adult Lateral Malleolus (Fibula) Fractures: A Systematic Review and Meta-Analysis

A systematic review compares intramedullary fibular nails with plate fixation for adult lateral malleolus fractures, considering complications and functional outcomes. Peyman Bakhshayesh is a coauthor.

Cureus 2025;17(12):e100074, published 25 December 2025. Relationship to the distinct archived review The Matter of Fibula Nail is unverified.

Published primary record lists Raufi, Hamsho, Namjoshi, Alnajjar, Rhodes and Bakhshayesh.

Published research

Effectiveness of non-invasive external pelvic compression: a systematic review of the literature

A systematic review assesses the efficacy and safety of pelvic circumferential compression devices in polytrauma with pelvic injuries. Peyman Bakhshayesh is a coauthor.

Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine 2016;24:73.

Published primary record lists Peyman Bakhshayesh, Tarek Boutefnouchet and Anna Tötterman.

Unpublished & working manuscripts

Working manuscript — publication status unverified

Possibility of one single incision in acetabular fracture surgery

A computational planning study explores whether different acetabular fracture patterns can be reduced and fixed through a single surgical exposure. It uses virtual fracture models and simulated screw trajectories, rather than a clinical comparison of patient outcomes.

A complete blinded manuscript is present in the research archive. No matching publication was verified. The public summary does not establish clinical effectiveness or endorse a single approach for every fracture.

Related draft 'Current approaches in acetabular surgery' and thesis/source archive establish user involvement; final author list needs confirmation.

Further work: Verify current authorship, final version, image permissions, submission history and subsequent publication before releasing the full manuscript.

Submission manuscript — publication status unverified

Ultrasound targeting accuracy for platelet-rich plasma injections

This working review examines the accuracy and precision of ultrasound targeting and the spread of PRP after musculoskeletal injection. Its central distinction is between accurate needle placement and proven improvement in patient symptoms.

The source says 'Submitted to Journal of Orthopaedics, Trauma and Rehabilitation'. Acceptance or publication was not evidenced.

Explicit byline: Mr Peyman Bakhshayesh MD PhD MBA.

Further work: Verify the included-study list, exact PRISMA search and screening records, reference accuracy, independent extraction, and journal decision before sharing a full systematic review.

Working manuscript — publication status unverified

Ultrasound-guided versus landmark-guided PRP: clinical outcomes

A draft systematic review asks whether ultrasound guidance changes pain, function or safety outcomes compared with landmark-guided PRP injection. The source reports very limited direct comparative evidence; anatomical targeting accuracy and clinical benefit are separate questions.

A file called PRP Ultrasound Final is present, but 'Final' in a filename does not establish peer review or publication.

Stored in user's PRP Ultrasound Paper research folder; no explicit byline in fetched main text. Keep under research archive/project summaries until attribution is confirmed.

Further work: The source explicitly calls the forest plot a placeholder, contains incomplete reference fields and source-reference markers, and needs a reproducible search, study verification and data audit.

Working manuscript — publication status unverified

BMAC for subchondral bone and osteochondral healing

A working review explores bone marrow aspirate concentrate delivered to subchondral bone for osteochondral repair. It considers clinical studies, technical reports and translational work. This summary reports the research question without claiming that BMAC regenerates cartilage or reliably prevents joint replacement.

The source includes a draft cover letter addressed to Cureus, with a blank date. Actual submission, acceptance and publication were not verified.

Explicit byline: Mr Peyman Bakhshayesh MD PhD MBA.

Further work: Reconcile conflicting citations and claims, distinguish trial protocols from completed studies, verify eligibility and study counts, and audit the extraction table and search records.

Working manuscript — publication status unverified

PRP, shockwave therapy and physiotherapy for plantar fasciitis

This working evidence synthesis compares PRP and extracorporeal shockwave therapy with conventional physiotherapy for persistent plantar heel pain. It considers pain, function and imaging outcomes, alongside differences in treatment preparation and rehabilitation.

A draft DOCX and corresponding PDF are present; no verified journal publication is recorded.

Explicit byline: Peyman Bakhshayesh MD, PhD, MBA; et al.

Further work: Several references have missing volume/page fields. The draft mixes RCTs and published meta-analyses; verify the claimed PRISMA counts, avoid double counting, and confirm analysis methods and effect sizes from original extraction records.

Incomplete working manuscript — publication status unverified

Shockwave therapy versus physiotherapy for Achilles tendinopathy

A working systematic review considers whether shockwave therapy alone or alongside exercise improves Achilles tendinopathy outcomes. It separates insertional from midportion disease and identifies substantial variation in treatment protocols and study findings.

The abstract contains an unresolved participant-count placeholder and the study table includes empty extraction fields.

Explicit byline: Mr Peyman Bakhshayesh MD PhD MBA.

Further work: Resolve the total sample size, complete the extraction table, verify all included trials and risk-of-bias assessments, and recalculate the pooled effects. No numerical pooled benefit is presented in this public summary.

Early working concept — publication status unverified

A biomechanical classification of partial articular pilon and atypical ankle fractures

An early concept document proposes describing selected distal tibial fracture patterns using hyperflexion or hyperextension combined with foot pronation or supination. It also considers how fracture mechanics might guide positioning and operative access.

The archive contains a short macro-enabled Word document. The public entry is a synopsis of its concept, not a validated classification. A related archived abstract describes atypical ankle fracture management, but its dataset and current publication status were not independently verified.

Located in user's New Ankle Classification folder; direct byline not present. Describe as archive research concept, not confirmed authored publication.

Further work: The source lacks a completed methods section, sample size, results, reproducibility analysis, byline and formal validation. Confirm authorship before releasing the full document.

Working manuscript — publication status unverified

Comparative outcomes of ankle fusion and total ankle replacement

A draft cohort manuscript compares ankle fusion, primary total ankle replacement and revision replacement. The related study protocol plans patient-reported functional assessment and review of complications and satisfaction.

The draft names Hossam Abdalaziz, Francis Irem-Oko and Peyman Bakhshayesh. Institutional details and study years are placeholders, and the companion protocol uses a different principal outcome measure.

Explicit manuscript byline includes Peyman Bakhshayesh.

Further work: Reconcile the protocol and manuscript outcomes, verify the data and statistics, complete dates and institutional details, confirm author approval and ethics/service-evaluation documentation. Patient lists and identifiable records are excluded.

Working full manuscript; conference abstract published

COVID-19 measures and orthopaedic surgical site infections

An observational study examines surgical site infections and readmissions before and during COVID-19 infection-control measures. A related conference abstract is publicly indexed; the full manuscript's publication status remains unverified.

A related poster abstract was published in BJS 2022;109(Supplement 6), DOI 10.1093/bjs/znac269.090. This does not establish publication of the complete Drive manuscript.

Explicit byline includes Peyman Bakhshayesh.

Further work: Check cohort totals and dates, reconcile manuscript and abstract, verify final analysis and submission history. Its study percentages are not this surgeon's current personal complication rates.

Working technical manuscript — publication status unverified

Technical tips on semi-prone positioning in posterior malleolus ankle fracture fixation

A technical manuscript describes semi-prone positioning to obtain posterior ankle access while considering operative setup and pressure protection. It is an operative technical description, rather than a comparative patient outcomes study or general rehabilitation instruction.

The source names Francis Irem-Oko MD MPH and Peyman Bakhshayesh MD PhD. A subsequent journal publication has not yet been verified.

Explicit byline.

Further work: Confirm the final manuscript, source references, image permissions, author approval and journal publication or submission history before releasing original images or asserting outcome benefits.

Working manuscript — publication status unverified

A novel sinus tarsi approach enabling standard calcaneal plate fixation for calcaneal fractures

A technical manuscript describes a modified limited approach for applying a standard lateral calcaneal plate. Its early case series provides a technique description rather than evidence of comparative benefit.

The title page names Tania Tanello, Ahmed Yousef and Peyman Bakhshayesh. An archive cover letter is addressed to the Journal of Foot and Ankle Surgery; publication has not been verified.

Explicit title-page byline.

Further work: Confirm final data, ethical and image approvals, references, author agreement and submission history. A small uncontrolled case series cannot establish lower complication rates.

Working manuscript — publication status unverified

Do current Lisfranc classification systems guide treatment and prognosis?

A critical narrative review examines how Lisfranc classifications describe injury, support treatment decisions and predict recovery. It considers validity, reliability and the limits of morphology-based categories.

The archive source contains alternative titles and has no author byline. A matching journal publication has not been verified.

Archive research draft; author byline not present in the reviewed source.

Further work: Agree final title and authorship; verify references and classification claims; document review methods and distinguish proposed principles from validated prognostic tools.

Working manuscript — publication status unverified

Lag screw entry point and greater trochanter–neck–head alignment in intertrochanteric fracture nailing

A technical review discusses greater trochanter anatomy, lag screw trajectory and operative planning during intramedullary fixation of intertrochanteric fractures.

An archive review manuscript was examined. No byline or reliable matching publication was established.

Archive research draft; author byline not present in the reviewed source.

Further work: Confirm authorship, source references, terminology and image permissions. Separate technical reasoning from claims about clinical outcomes that require comparative evidence.

Working manuscript — publication status unverified

Strengths and limitations of medial column plate fixation in progressive collapsing foot deformity

A working review considers indications, fixation strategy, union and complications of medial column fusion in progressive collapsing foot deformity. Related archive notes discuss naviculocuneiform and talonavicular fusion.

The formatted manuscript includes Peyman Bakhshayesh's byline. Its publication status is unverified; related archive review notes have no byline.

Explicit byline on the formatted manuscript; related notes have no author byline.

Further work: Audit study selection, extracted data, pooled analyses and reference identities; reconcile claimed study counts and complete figures and contact placeholders before publishing results.

Working manuscript — publication status unverified

The matter of fibula nail: indications, benefits and limitations

An archived working review discusses when fibular nails may be considered and how their wound, fixation and functional tradeoffs compare with plating.

The source carries Peyman Bakhshayesh's byline. It differs substantially from the verified 2025 Cureus review in byline, search methods and included studies; their relationship is unverified.

Explicit byline.

Further work: Reconcile sample totals, verify study designs and reference identities, complete the systematic review audit and clarify relationship to the published review before releasing numerical findings.

Working manuscript — publication status unverified

Intramedullary nailing versus plate fixation for distal tibia fractures

A working evidence review compares intramedullary nailing and plating for distal tibia fractures, considering healing, wound complications, infection and postoperative loading.

An archived draft claims analysis of investigator-supplied studies, but author byline and publication status were not established.

Archive research draft; author byline not present in the reviewed source.

Further work: Verify the full search and eligibility record, reference identity, extracted data, effect calculations and bias assessment before publishing pooled results.

Working manuscript — publication status unverified

Evaluation of stem stability in periprosthetic femoral fractures

A working review examines how implant stability, fracture morphology and cement or bone integrity affect assessment of periprosthetic femoral fractures. It discusses the limitations of existing classifications.

The reviewed archive manuscript has no author byline; a current publication match has not been verified.

Archive research draft; author byline not present in the reviewed source.

Further work: Confirm authorship, complete editorial and reference review, distinguish established diagnostic methods from proposed tests and substantiate treatment claims.

Working manuscript — publication status unverified

Tips and tricks for minimally invasive reduction of tibial plateau fractures

A technical draft describes indirect fluoroscopic reduction and fixation of selected tibial plateau fractures while limiting soft tissue exposure. It is a technique report rather than a validated comparative outcome study.

The title page names Hossam Abdalaziz, Sadia Afzal and Peyman Bakhshayesh. A cover letter dated 19 May 2025 states that the work had not been published elsewhere at that time; its current publication status is unverified.

Explicit title-page byline.

Further work: Confirm the final manuscript and title, ethics, images, references, author agreement and submission history. Assertions of reduced morbidity or day-case suitability require appropriate outcome evidence.

Working manuscript — publication status unverified

Immediate weight bearing following ankle and hindfoot fusion

A working review examines whether earlier loading after selected ankle and hindfoot fusion procedures affects union, complications and recovery. It asks a research question and does not prescribe a general postoperative loading schedule.

The reviewed archive manuscript has no byline. A reliable matching publication was not established.

Archive research draft; author byline not present in the reviewed source.

Further work: Audit eligibility, definition of immediate loading, union criteria, study selection, data extraction and pooled analysis. Account for procedure and patient selection before interpreting comparisons.

Working manuscript — publication status unverified

Comparative analysis of ankle fusion techniques

A working review compares plate fixation, intramedullary nails, circular external fixation and arthroscopic fusion, considering union, function and complications across different surgical indications.

An archive cover letter dated 21 May 2025 names Peyman Bakhshayesh and Yasir Raufi and is addressed to Foot and Ankle International. Submission or publication status has not been confirmed.

Explicit author names in cover letter.

Further work: Complete figure placeholders, verify study identities and extracted data, audit pooled analyses and address selection differences between techniques before publishing numerical comparisons.

Working manuscript — publication status unverified

Comparative efficacy of internal fixation techniques for femoral neck fractures

A working review considers cannulated screws, buttress plating, a femoral neck system and locking plates for femoral neck fractures, with attention to function and complications.

The reviewed archive manuscript has no byline. Its publication status and claimed pooled findings were not verified.

Archive research draft; author byline not present in the reviewed source.

Further work: Confirm authorship and review provenance; verify search methods, study identities, extraction tables and forest plots before publishing comparative findings.

Research in progress

Research proposal — completion and publication unverified

CT Motion Analysis in Evaluation of Fracture Healing Following TSF Treatment

Proposal to validate low-dose CT and CT motion analysis in a sawbone model and then a consecutive clinical series after Taylor Spatial Frame treatment. It must be presented as a proposed diagnostic study, without implying that patients have been enrolled or results obtained.

Source uses future tense, and states: “The final results are unknown awaiting research to be done.”

Further work: Check current project status and investigators; no completed results are evidenced.

Study protocol — completion and publication unverified

Functional outcomes after reconstruction for progressive collapsing foot deformity

A study protocol proposes evaluating patient-reported outcomes after subtalar fusion or heel osteotomy with medial column stabilization for progressive collapsing foot deformity. It uses the Manchester–Oxford Foot Questionnaire, complications, reoperations and satisfaction.

The source names Mr Peyman Bakhshayesh as principal investigator and describes planned retrospective data collection. A related cohort draft exists but contains author placeholders and differs in study design and outcomes.

Protocol explicitly identifies Mr Peyman Bakhshayesh as principal investigator.

Further work: Finalize dates, reconcile prospective versus retrospective design and outcome measures, verify actual enrolment and data, and confirm formal classification and permissions. No cohort success rate or ethical approval number is asserted here.

Preliminary study protocol — no analysed results

Weight-bearing strategy and outcomes after operative Lisfranc injury

A preliminary ten-year retrospective cohort protocol examines whether postoperative weight-bearing strategy is associated with wound healing, infection, return to work and reoperation after Lisfranc surgery. It also proposes studying how injury classification relates to fixation planning.

The source is dated 3 June 2026, names Mr Peyman Bakhshayesh and Mr Ahmad Eldoseki, and explicitly states that the dataset has not yet been provided for analysis.

Explicit byline and supervisory roles in source.

Further work: Finalize institutional governance, define exposures and endpoints, clean and review the dataset and imaging, complete statistical analysis and report limitations from confounding and missing data. Planned cohort size is not a verified analysed sample.

Research proposal — no analysed results

Circular frame, plate and nail fixation in distal third tibial fractures

A proposed systematic review would compare circular frames, plates and intramedullary nails for distal third tibial fractures, with attention to union, complications and functional recovery.

The source sets out future search, registration, data extraction and analysis steps. It does not establish completed study results.

Archive research protocol; author byline not present in the reviewed source.

Further work: Confirm authorship, register and finalize the protocol, specify fracture eligibility and loading definitions, complete reproducible searches and assess bias before analysis.

Research proposal — no analysed results

SCOPE: low-dose CT assessment of periprosthetic femoral fractures

A prospective study proposal explores whether CT-based motion analysis can help assess hip stem stability and femoral integrity after a periprosthetic fracture. This is an investigational diagnostic question.

The protocol lists Hemant Pandit, Jeya Palan, Peyman Bakhshayesh, Henrik Olivecrona, Olof Sandberg and Richard Fawcett. Related archive documents describe the same study concept; completed results and publication have not been verified.

Explicit study-team list in protocol.

Further work: Finalize governance and ethics, assess patient safety and feasibility, standardize the reference test and acquisition protocol, and complete analysis before treating the proposed assessment as validated clinical practice.

Research proposal — no analysed results

Surgical reconstruction and classification in progressive collapsing foot deformity

An early systematic review outline proposes studying patient-reported function, pain, radiographic correction, complications and revision after surgical reconstruction for progressive collapsing foot deformity.

The native document is explicitly marked DRAFT and includes unresolved intervention and outcome questions. It contains literature notes rather than completed review results.

Archive research protocol; author byline not present in the reviewed source.

Further work: Confirm authorship, finalize the review question and registration, distinguish cited literature from original findings and complete screening, extraction and risk-of-bias assessment.

University of Leeds

Honorary
Senior Lecturer

School of Medicine
Leeds Institute of Rheumatic and Musculoskeletal Medicine

View the university profile

Research grounded in trauma care

Mr Bakhshayesh’s academic interests include trauma and trauma-related injuries, functional return to activity, medical statistics and 3D research.

He completed his PhD at Karolinska Institute in Sweden, with a thesis entitled Clinical and Radiological Aspects of Traumatic Pelvic Ring Injuries.

Selected peer-reviewed publications and their original journal records are linked in the research library. The academic profiles below provide access to additional research outputs and interests.

Education and professional development

His academic work sits alongside NHS major trauma and elective foot and ankle practice. Teaching and specialist training form part of his professional background.

Academic enquiries

Research & professional contact.

For academic enquiries, the university profile lists the contact below.

P.Bakhshayesh@leeds.ac.uk

Looking for an appointment?

For private clinical appointments and patient enquiries, please use the practice contact details.

Private appointments & contact

Patient education

Regenerative care explained

Read the complete book on treatment evidence, rehabilitation, safety and informed decisions.

Explore the book →
Call the practiceArrange a consultation →