ls /home/daytona/workspace/ 2>/dev/null || echo "workspace empty"

mkdir -p /home/daytona/workspace/femur-anatomy && ls /home/daytona/workspace/fem…

~/femur-anatomy/build.js

const pptxgen = require("pptxgenjs");
const { execSync } = require("child_process");

// Fetch images as base64
const imageUrls = [
  "https://cdn.orris.care/cdss_images/33bb93211c375763f18a8869cd47af110a614e8375bd5d77caf7051d95ea7528.png",  // proximal femur labeled
  "https://cdn.orris.care/cdss_images/6b95e6dce583049d98c3acf695615756b8de3c7b4586fd8bfcf72c4f6ab6f38e.png",  // hip joint
  "https://cdn.orris.care/cdss_images/4e60f401560046e93f0a4c1920ce39c578f3c19d992d6292fcfb54dda6cf70f6.png",  // ligaments
  "https://cdn.orris.care/cdss_images/c22999d20c2a123a85cd6b090c58e9a257cf4c33ba4cd69639ee74a4b2e0472a.png",  // head neck trochanter
];

let images = [];
try {
  images = JSON.parse(
    execSync(
      `node /home/daytona/skills/shared/scripts/fetch_images.js ${imageUrls.map(u => `"${u}"`).join(" ")}`
    ).toString()
  );
} catch(e) {
  console.error("Image fetch error:", e.message);
  images = imageUrls.map(u => ({ url: u, base64: null, error: e.message }));
}

const pres = new pptxgen();
pres.layout = "LAYOUT_16x9";
pres.title = "Femur Bone Anatomy";
pres.author = "Medical Education";

// ─── COLOR PALETTE ───────────────────────────────────────────────────────────
const DARK_BG   = "1A2340";   // deep navy
const MID_BG    = "22304F";   // slightly lighter navy for section slides
const GOLD      = "C9A84C";   // bone/gold accent
const WHITE     = "FFFFFF";
const LIGHT_BLU = "A8C8F0";
const TEAL      = "4FC3C3";
const PALE      = "E8F0FB";   // card backgrounds

// ─── HELPER FUNCTIONS ────────────────────────────────────────────────────────
function sectionBanner(slide, topColor) {
  slide.addShape(pres.ShapeType.rect, {
    x: 0, y: 0, w: 10, h: 1.0,
    fill: { color: GOLD },
    line: { color: GOLD }
  });
}

function bottomBar(slide) {
  slide.addShape(pres.ShapeType.rect, {
    x: 0, y: 5.3, w: 10, h: 0.325,
    fill: { color: GOLD },
    line: { color: GOLD }
  });
  slide.addText("Femur Bone Anatomy  |  Medical Education", {
    x: 0.2, y: 5.3, w: 9.6, h: 0.325,
    fontSize: 9, color: DARK_BG, bold: false, valign: "middle", align: "right", margin: 0
  });
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 1 — TITLE
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = pres.addSlide();
  slide.background = { color: DARK_BG };

  // Diagonal accent shape
  slide.addShape(pres.ShapeType.rect, {
    x: 6.8, y: 0, w: 3.2, h: 5.625,
    fill: { color: MID_BG },
    line: { color: MID_BG }
  });

  // Gold vertical stripe
  slide.addShape(pres.ShapeType.rect, {
    x: 6.7, y: 0, w: 0.12, h: 5.625,
    fill: { color: GOLD },
    line: { color: GOLD }
  });

  // Title text
  slide.addText("FEMUR", {
    x: 0.5, y: 0.7, w: 6.0, h: 1.0,
    fontSize: 64, fontFace: "Arial", bold: true,
    color: GOLD, align: "left", margin: 0, charSpacing: 8
  });
  slide.addText("BONE ANATOMY", {
    x: 0.5, y: 1.65, w: 6.0, h: 0.65,
    fontSize: 28, fontFace: "Arial", bold: false,
    color: WHITE, align: "left", margin: 0, charSpacing: 4
  });

  // Subtitle line
  slide.addShape(pres.ShapeType.rect, {
    x: 0.5, y: 2.45, w: 4.0, h: 0.04,
    fill: { color: GOLD }, line: { color: GOLD }
  });

  slide.addText("Detail Notes", {
    x: 0.5, y: 2.6, w: 5.5, h: 0.45,
    fontSize: 18, color: LIGHT_BLU, italic: true, align: "left", margin: 0
  });

  // Overview bullets
  slide.addText([
    { text: "Longest & strongest bone in the body", options: { bullet: true, breakLine: true } },
    { text: "Components: Head · Neck · Shaft · Condyles", options: { bullet: true, breakLine: true } },
    { text: "Proximal = cancellous; Shaft = cortical bone", options: { bullet: true, breakLine: true } },
    { text: "Carries full body weight to the lower limb", options: { bullet: true } }
  ], {
    x: 0.5, y: 3.2, w: 6.0, h: 1.8,
    fontSize: 13, color: PALE, lineSpacingMultiple: 1.4
  });

  // Side image if available
  if (images[0] && !images[0].error) {
    slide.addImage({ data: images[0].base64, x: 7.0, y: 0.3, w: 2.7, h: 5.0, sizing: { type: "contain", w: 2.7, h: 5.0 } });
  }

  bottomBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 2 — OVERVIEW & GENERAL FEATURES
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = pres.addSlide();
  slide.background = { color: DARK_BG };

  sectionBanner(slide, GOLD);
  slide.addText("GENERAL FEATURES", {
    x: 0.4, y: 0.08, w: 9.2, h: 0.82,
    fontSize: 22, bold: true, color: DARK_BG, valign: "middle", margin: 0
  });

  // Left content
  const items = [
    ["Classification", "Long bone; largest & strongest in body"],
    ["Length", "Approx. 45 cm in adults (¼ of body height)"],
    ["Orientation", "Oblique shaft — brings knee under body CoG"],
    ["Cross-section (mid-shaft)", "Triangular: medial, lateral & posterior surfaces"],
    ["Bone type", "Cancellous at head/neck/intertrochanteric; cortical at shaft; widens at distal metaphysis"],
    ["Articulations", "Proximal: hip joint (acetabulum)  |  Distal: knee joint (tibia + patella)"],
    ["Angle of Inclination", "Neck-shaft angle ≈ 125° in adults (coxa valga >135°, vara <120°)"],
    ["Angle of Anteversion", "Normal ≈ 10–15° anterior tilt of femoral neck relative to shaft axis"],
  ];

  items.forEach((item, i) => {
    const y = 1.1 + i * 0.56;
    slide.addShape(pres.ShapeType.rect, {
      x: 0.3, y: y, w: 2.2, h: 0.45,
      fill: { color: GOLD }, line: { color: GOLD }
    });
    slide.addText(item[0], { x: 0.3, y: y, w: 2.2, h: 0.45, fontSize: 10, bold: true, color: DARK_BG, align: "center", valign: "middle", margin: 0 });
    slide.addText(item[1], { x: 2.6, y: y, w: 4.6, h: 0.45, fontSize: 10, color: PALE, valign: "middle", margin: 2 });
  });

  // Image on right
  if (images[0] && !images[0].error) {
    slide.addImage({ data: images[0].base64, x: 7.3, y: 0.95, w: 2.5, h: 4.2, sizing: { type: "contain", w: 2.5, h: 4.2 } });
    slide.addText("Proximal Femur — Labeled Anatomy", {
      x: 7.1, y: 5.2, w: 2.7, h: 0.3, fontSize: 8, color: TEAL, italic: true, align: "center"
    });
  }

  bottomBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 3 — PROXIMAL FEMUR
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = pres.addSlide();
  slide.background = { color: DARK_BG };

  sectionBanner(slide, GOLD);
  slide.addText("PROXIMAL FEMUR", {
    x: 0.4, y: 0.08, w: 9.2, h: 0.82,
    fontSize: 22, bold: true, color: DARK_BG, valign: "middle", margin: 0
  });

  // Two-column layout
  const leftParts = [
    { label: "Femoral Head", desc: "2/3-sphere; covered with hyaline cartilage (except fovea capitis). Articulates with acetabulum. Fovea = attachment site of ligamentum teres carrying artery of Ligamentum Teres." },
    { label: "Femoral Neck", desc: "Oblique strut between pelvis (horizontal) and shaft (vertical). Predominantly cancellous bone — vulnerable to torsional & shear forces. Anteversion ≈ 10–15°." },
    { label: "Greater Trochanter", desc: "Large lateral prominence. Insertion: gluteus medius & minimus, piriformis, obturator internus/externus, gemelli. Palpable landmark laterally." },
    { label: "Lesser Trochanter", desc: "Posteromedial prominence at junction of neck and shaft. Insertion of iliopsoas (primary hip flexor)." },
    { label: "Intertrochanteric Line", desc: "Anterior ridge — capsule attachment; weight-bearing line." },
    { label: "Intertrochanteric Crest", desc: "Posterior; connects the two trochanters. Contains quadrate tubercle (insertion of quadratus femoris)." },
    { label: "Calcar Femorale", desc: "Dense vertical plate of cortical bone inside femoral neck. Resists compressive loads. Important landmark in hip arthroplasty." },
  ];

  leftParts.forEach((p, i) => {
    const y = 1.1 + i * 0.62;
    slide.addShape(pres.ShapeType.rect, {
      x: 0.25, y: y, w: 0.08, h: 0.45,
      fill: { color: GOLD }, line: { color: GOLD }
    });
    slide.addText(p.label + ": ", {
      x: 0.42, y: y, w: 1.9, h: 0.45, fontSize: 10, bold: true, color: TEAL, valign: "top", margin: 2
    });
    slide.addText(p.desc, {
      x: 2.25, y: y, w: 4.95, h: 0.45, fontSize: 9.5, color: PALE, valign: "top", margin: 2
    });
  });

  // Image
  if (images[1] && !images[1].error) {
    slide.addImage({ data: images[1].base64, x: 7.35, y: 0.95, w: 2.45, h: 4.3, sizing: { type: "contain", w: 2.45, h: 4.3 } });
    slide.addText("Hip Joint: Head, Neck & Trochanters", {
      x: 7.1, y: 5.25, w: 2.7, h: 0.25, fontSize: 7.5, color: TEAL, italic: true, align: "center"
    });
  }

  bottomBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 4 — FEMORAL SHAFT
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = pres.addSlide();
  slide.background = { color: DARK_BG };

  sectionBanner(slide, GOLD);
  slide.addText("FEMORAL SHAFT (DIAPHYSIS)", {
    x: 0.4, y: 0.08, w: 9.2, h: 0.82,
    fontSize: 22, bold: true, color: DARK_BG, valign: "middle", margin: 0
  });

  // Card layout
  const cards = [
    {
      title: "Structure",
      pts: [
        "Thick cortical bone — requires high force to fracture",
        "Bowed anteriorly (important for nail insertion)",
        "Subtrochanteric region: highest cortical stress concentrations",
        "Mid-shaft: triangular cross-section",
      ]
    },
    {
      title: "Surfaces",
      pts: [
        "Anterior surface: smooth, convex",
        "Posteromedial surface: smooth",
        "Posterolateral surface: smooth",
        "Posterior border: forms the linea aspera",
      ]
    },
    {
      title: "Linea Aspera",
      pts: [
        "Broad roughened posterior crest running along shaft",
        "Widens proximally → gluteal tuberosity (lateral) + pectineal line (medial)",
        "Widens distally → medial & lateral supracondylar lines",
        "Attachment for adductors, quadriceps, hamstrings, vastus lateralis/medialis",
      ]
    },
    {
      title: "Nutrient Foramen",
      pts: [
        "Posterior surface of mid-shaft near linea aspera",
        "Opens distally ('flees the knee') — aids bone siding",
        "Transmits nutrient artery supplying cortical bone",
      ]
    },
    {
      title: "Muscle Compartments",
      pts: [
        "Anterior: extensors of knee (quadriceps) — femoral nerve",
        "Posterior: extensors of hip & flexors of knee (hamstrings) — sciatic nerve",
        "Medial: adductors — obturator nerve",
      ]
    },
    {
      title: "Clinical Points",
      pts: [
        "Femoral shaft fractures require high-energy trauma in young adults",
        "Atypical femur fractures (bisphosphonate use): transverse, subtrochanteric/diaphyseal",
        "Intramedullary nailing is gold-standard fixation",
      ]
    },
  ];

  const cols = 3;
  const rows = 2;
  const cardW = 3.1;
  const cardH = 2.15;
  const startX = 0.22;
  const startY = 1.08;
  const gapX = 0.08;
  const gapY = 0.06;

  cards.forEach((card, i) => {
    const col = i % cols;
    const row = Math.floor(i / cols);
    const x = startX + col * (cardW + gapX);
    const y = startY + row * (cardH + gapY);

    slide.addShape(pres.ShapeType.rect, {
      x, y, w: cardW, h: cardH,
      fill: { color: MID_BG }, line: { color: GOLD, pt: 1 }
    });
    slide.addShape(pres.ShapeType.rect, {
      x, y, w: cardW, h: 0.32,
      fill: { color: GOLD }, line: { color: GOLD }
    });
    slide.addText(card.title, {
      x, y, w: cardW, h: 0.32,
      fontSize: 11, bold: true, color: DARK_BG, align: "center", valign: "middle", margin: 0
    });
    slide.addText(card.pts.map(p => ({ text: p, options: { bullet: { type: "bullet" }, breakLine: true } })), {
      x: x + 0.08, y: y + 0.36, w: cardW - 0.16, h: cardH - 0.42,
      fontSize: 9, color: PALE, lineSpacingMultiple: 1.25
    });
  });

  bottomBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 5 — DISTAL FEMUR
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = pres.addSlide();
  slide.background = { color: DARK_BG };

  sectionBanner(slide, GOLD);
  slide.addText("DISTAL FEMUR", {
    x: 0.4, y: 0.08, w: 9.2, h: 0.82,
    fontSize: 22, bold: true, color: DARK_BG, valign: "middle", margin: 0
  });

  const parts = [
    ["Medial Condyle", "Large articular surface on medial side. Projects more distally than lateral condyle — compensates for femoral obliquity. Bears greater compressive load."],
    ["Lateral Condyle", "Articular surface on lateral side. More posterior extension. Lateral lip of patellar surface is raised to prevent patellar dislocation."],
    ["Intercondylar Fossa", "Deep groove separating condyles posteriorly. Contains ACL & PCL attachments. Floor = popliteal surface."],
    ["Patellar Articular Surface", "Smooth anterior surface. Trochlear groove for patella gliding. Lateral lip elevated to guard against lateral patellar dislocation."],
    ["Medial Epicondyle", "Prominence on medial surface of medial condyle. Attachment: tibial (medial) collateral ligament, medial head of gastrocnemius."],
    ["Lateral Epicondyle", "Prominence on lateral condyle. Attachment: fibular (lateral) collateral ligament, lateral head of gastrocnemius, popliteus tendon."],
    ["Adductor Tubercle", "Small prominence at superior medial condyle where medial supracondylar line terminates. Adductor magnus tendon attachment."],
    ["Popliteal Surface", "Posterior triangular area between supracondylar lines. Floor of popliteal fossa."],
  ];

  parts.forEach((p, i) => {
    const col = i < 4 ? 0 : 1;
    const row = i < 4 ? i : i - 4;
    const x = 0.28 + col * 4.85;
    const y = 1.08 + row * 1.05;

    slide.addShape(pres.ShapeType.rect, {
      x, y, w: 4.7, h: 0.95,
      fill: { color: MID_BG }, line: { color: GOLD, pt: 0.75 }
    });
    slide.addShape(pres.ShapeType.rect, {
      x, y, w: 0.07, h: 0.95,
      fill: { color: GOLD }, line: { color: GOLD }
    });
    slide.addText(p[0], {
      x: x + 0.14, y: y + 0.04, w: 4.45, h: 0.28,
      fontSize: 10.5, bold: true, color: TEAL, margin: 2, valign: "top"
    });
    slide.addText(p[1], {
      x: x + 0.14, y: y + 0.3, w: 4.45, h: 0.6,
      fontSize: 9, color: PALE, margin: 2, valign: "top"
    });
  });

  bottomBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 6 — BLOOD SUPPLY & NERVE SUPPLY
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = pres.addSlide();
  slide.background = { color: DARK_BG };

  sectionBanner(slide, GOLD);
  slide.addText("BLOOD SUPPLY & NERVE SUPPLY", {
    x: 0.4, y: 0.08, w: 9.2, h: 0.82,
    fontSize: 22, bold: true, color: DARK_BG, valign: "middle", margin: 0
  });

  // Blood supply section
  slide.addText("ARTERIAL SUPPLY", {
    x: 0.3, y: 1.05, w: 4.4, h: 0.3,
    fontSize: 11, bold: true, color: GOLD, align: "left", margin: 0
  });

  const arteries = [
    ["Femoral Head & Neck", "Medial & lateral circumflex femoral aa. (branches of femoral/profunda femoris). Form extracapsular arterial ring at femoral neck → retinacular vessels ascend to head."],
    ["Ligamentum Teres", "Artery of lig. teres (from obturator a.) — minor contributor in adults; more significant in children."],
    ["Femoral Shaft", "Profunda femoris (deep femoral artery) — predominantly responsible. Runs posterolaterally; branches supply hamstrings and adductors."],
    ["Superficial Femoral A.", "Passes anteromedially → through adductor hiatus → becomes popliteal artery. Vascular supply to distal thigh."],
    ["External Iliac → Common Femoral", "Passes under inguinal ligament. Located midway between ASIS and pubic symphysis."],
  ];

  arteries.forEach((a, i) => {
    const y = 1.42 + i * 0.72;
    slide.addShape(pres.ShapeType.rect, {
      x: 0.25, y, w: 2.2, h: 0.6,
      fill: { color: "8B1A1A" }, line: { color: GOLD, pt: 0.5 }
    });
    slide.addText(a[0], { x: 0.25, y, w: 2.2, h: 0.6, fontSize: 9, bold: true, color: GOLD, align: "center", valign: "middle", margin: 3 });
    slide.addText(a[1], { x: 2.55, y, w: 4.55, h: 0.6, fontSize: 9, color: PALE, valign: "middle", margin: 2 });
  });

  // Nerve supply — right column
  slide.addShape(pres.ShapeType.rect, {
    x: 7.2, y: 1.0, w: 2.6, h: 4.35,
    fill: { color: MID_BG }, line: { color: GOLD, pt: 1 }
  });
  slide.addText("NERVE SUPPLY", {
    x: 7.2, y: 1.0, w: 2.6, h: 0.32,
    fontSize: 11, bold: true, color: DARK_BG, align: "center", valign: "middle", margin: 0,
    fill: { color: GOLD }
  });
  slide.addShape(pres.ShapeType.rect, {
    x: 7.2, y: 1.0, w: 2.6, h: 0.32,
    fill: { color: GOLD }, line: { color: GOLD }
  });
  slide.addText("NERVE SUPPLY", {
    x: 7.2, y: 1.0, w: 2.6, h: 0.32,
    fontSize: 11, bold: true, color: DARK_BG, align: "center", valign: "middle", margin: 0
  });

  const nerves = [
    ["Femoral Nerve (L2-L4)", "Largest lumbar plexus branch. Enters under inguinal lig. lateral to femoral artery. Innervates: quadriceps (knee extension), pectineus, sartorius."],
    ["Sciatic Nerve (L4-S3)", "Largest peripheral nerve. Exits via greater sciatic foramen inferior to piriformis. Innervates: hamstrings, adductor magnus. Divides at popliteal fossa → tibial + common peroneal."],
    ["Obturator Nerve (L2-L4)", "Innervates medial compartment (adductors). Sensory to medial thigh."],
    ["Lateral Cutaneous n. of Thigh", "L2-L3; pure sensory to lateral thigh surface."],
  ];

  nerves.forEach((n, i) => {
    const y = 1.4 + i * 0.98;
    slide.addText(n[0], { x: 7.26, y, w: 2.48, h: 0.28, fontSize: 9, bold: true, color: TEAL, margin: 3 });
    slide.addText(n[1], { x: 7.26, y: y + 0.28, w: 2.48, h: 0.62, fontSize: 8.5, color: PALE, margin: 3 });
  });

  // Ligaments image
  if (images[2] && !images[2].error) {
    // no room — skip or overlay very small
  }

  bottomBar(slide);
}

// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 7 — MUSCLE ATTACHMENTS
// ═══════════════════════════════════════════════════════════════════════════════
{
  const slide = pres.addSlide();
  slide.background = { color: DARK_BG };

  sectionBanner(slide, GOLD);
  slide.addText("MUSCLE ATTACHMENTS", {
    x: 0.4, y: 0.08, w: 9.2, h: 0.82,
    fontSize: 22, bold: true, color: DARK_BG, valign: "middle", margin: 0
  });

  const table = [
    // [Region, Muscle, Action, Note]
    ["Greater\nTrochanter", "Gluteus medius & minimus\nPiriformis\nObturator internus & externus\nGemellus superior & inferior", "Hip abduction / medial rotation\nExternal rotation\nExternal rotation\nExternal rotation", "Key stabilisers during gait; trendelenburg sign if weak"],
    ["Lesser\nTrochanter", "Iliopsoas (iliacus + psoas major)", "Hip flexion & external rotation", "Primary hip flexor; inserts via iliopsoas tendon"],
    ["Gluteal\nTuberosity", "Gluteus maximus", "Hip extension & external rotation", "Proximal-lateral femoral shaft, posterior"],
    ["Pectineal\nLine", "Pectineus", "Hip flexion, adduction & medial rotation", "Posteromedial proximal shaft below lesser trochanter"],
    ["Linea Aspera\n(medial lip)", "Adductors (longus, brevis, magnus)\nVastus medialis", "Adduction\nKnee extension", "Major adductor group from pubis"],
    ["Linea Aspera\n(lateral lip)", "Vastus lateralis\nShort head of biceps femoris", "Knee extension\nKnee flexion", "Quadriceps attachment"],
    ["Adductor\nTubercle", "Adductor magnus (tendinous part)", "Hip adduction & extension", "Distal medial supracondylar line terminus"],
    ["Lateral Condyle", "Lateral head of gastrocnemius\nPopliteus", "Plantar flexion\nKnee unlocking", "Posterior knee musculature"],
    ["Medial Condyle", "Medial head of gastrocnemius", "Plantar flexion", "Attachment above medial epicondyle"],
  ];

  const colWidths = [1.25, 2.2, 2.0, 2.0];
  const headers = ["Region", "Muscle", "Action", "Clinical Note"];
  const startX = 0.28;
  const startY = 1.08;

  // Header row
  let cx = startX;
  headers.forEach((h, i) => {
    slide.addShape(pres.ShapeType.rect, {
      x: cx, y: startY, w: colWidths[i], h: 0.32,
      fill: { color: GOLD }, line: { color: GOLD }
    });
    slide.addText(h, { x: cx, y: startY, w: colWidths[i], h: 0.32, fontSize: 9.5, bold: true, color: DARK_BG, align: "center", valign: "middle", margin: 0 });
    cx += colWidths[i] + 0.025;
  });

  table.forEach((row, r) => {
    cx = startX;
    const y = startY + 0.33 + r * 0.46;
    const bgColor = r % 2 === 0 ? MID_BG : "1E2B46";
    row.forEach((cell, c) => {
      slide.addShape(pres.ShapeType.rect, {
        x: cx, y, w: colWidths[c], h: 0.44,
        fill: { color: bgColor }, line: { color: "2A3860", pt: 0.5 }
      });
      slide.addText(cell, {
        x: cx + 0.04, y: y + 0.02, w: colWidths[c] - 0.08, h: 0.4,
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  bottomBar(slide);
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// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 8 — CLINICAL CORRELATIONS & FRACTURE ZONES
// ═══════════════════════════════════════════════════════════════════════════════
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  });

  const zones = [
    {
      zone: "FEMORAL HEAD", color: "5C3317",
      pts: [
        "AVN (osteonecrosis): disruption of retinacular vessels after displaced neck fracture or dislocation",
        "Hip dislocation: posterior most common (dashboard injury) — risk to sciatic nerve",
        "Femoral head fractures (Pipkin classification) occur with hip dislocation",
      ]
    },
    {
      zone: "FEMORAL NECK", color: "7A3B1E",
      pts: [
        "Most common site of osteoporotic fracture in elderly (low-energy falls)",
        "Pauwels classification by angle (I <30°, II 30–70°, III >70°) — higher angle = higher shear",
        "20% mortality in first year post-fracture; 1/3 require institutional care",
        "Blood supply disruption → AVN (15–35% in displaced fractures)",
        "Intracapsular location → no periosteal callus; reliant on endosteal healing",
      ]
    },
    {
      zone: "INTERTROCHANTERIC", color: "2D5A27",
      pts: [
        "Extracapsular — good blood supply → reliable healing",
        "Evans classification; stable vs unstable based on posteromedial cortex integrity",
        "Dynamic hip screw (DHS) or cephalomedullary nail for fixation",
        "Reverse obliquity fractures: more unstable — favour intramedullary nail",
      ]
    },
    {
      zone: "SUBTROCHANTERIC", color: "1E4D6B",
      pts: [
        "High cortical stress concentration — prone to fatigue fractures",
        "Site of atypical femur fractures (bisphosphonate-related): transverse or short oblique",
        "Deforming muscles: abductors + iliopsoas flex/abduct proximal fragment",
        "Cephalomedullary nail (long nail) preferred",
      ]
    },
    {
      zone: "FEMORAL SHAFT", color: "4A1F7A",
      pts: [
        "Cortical bone — requires high-energy trauma (MVC, fall from height) in young",
        "Significant blood loss possible (1–2 L into thigh)",
        "Antegrade intramedullary nailing — gold standard",
        "Risk of missed ipsilateral femoral neck fracture (check with dedicated XR)",
      ]
    },
    {
      zone: "DISTAL FEMUR", color: "5C1B30",
      pts: [
        "Widening distal metaphysis: cortex thins → susceptible to osteoporotic fracture",
        "AO/OTA classification (33-A, B, C) — increasing intra-articular complexity",
        "Retrograde nail or LISS plate depending on pattern",
        "Periprosthetic fractures after TKA: Vancouver/Su classification",
      ]
    },
  ];

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// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 9 — ANGLES & RADIOLOGICAL ANATOMY
// ═══════════════════════════════════════════════════════════════════════════════
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    fontSize: 22, bold: true, color: DARK_BG, valign: "middle", margin: 0
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  const angles = [
    { name: "Angle of Inclination\n(Neck-Shaft Angle)", normal: "125° (120–135°)", abnormal: "Coxa valga (>135°)\nCoxa vara (<120°)", significance: "Affects femoral neck length & lever arm of abductors. Altered in developmental dysplasia, Paget's, osteomalacia." },
    { name: "Angle of Anteversion\n(Femoral Torsion)", normal: "10–15° anteversion", abnormal: "Increased: in-toeing\nDecreased (retroversion): out-toeing", significance: "Measured by CT or MRI. Important pre-operative parameter for THA and paediatric osteotomy." },
    { name: "Mechanical Axis", normal: "Passes through centre of femoral head to centre of tibial plateau", abnormal: "Varus: axis medial to knee\nValgus: axis lateral to knee", significance: "Key for TKA alignment planning. Normal medial proximal tibial angle (MPTA) ≈ 87°." },
    { name: "Q-Angle (Quadriceps Angle)", normal: "M: ≈ 10–12°, F: ≈ 15–17°", abnormal: ">20° = increased risk of patellar instability", significance: "Line from ASIS to patellar centre, then to tibial tuberosity. Relates to femoral anteversion and tibial torsion." },
    { name: "CE Angle of Wiberg\n(Centre-Edge Angle)", normal: "≥ 25° (adult)", abnormal: "<20° = dysplasia (undercoverage)", significance: "Measures acetabular coverage of femoral head. Reduced in DDH. Assessed on AP pelvis radiograph." },
    { name: "Hilgenreiner-Perkin\nLines (Paediatric)", normal: "Femoral head ossific nucleus: Perkin-inner & Hilgenreiner-below quadrant", abnormal: "Outer/above quadrant = dysplasia or dislocation", significance: "Used in infant hip screening (Graf method, Ortolani/Barlow). Ossific nucleus appears 3–6 months." },
  ];

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// ═══════════════════════════════════════════════════════════════════════════════
// SLIDE 10 — SUMMARY / KEY FACTS
// ═══════════════════════════════════════════════════════════════════════════════
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    "Longest & strongest bone; bears full body weight during gait",
    "Proximal femur: head (2/3-sphere) + neck (oblique strut, 125° neck-shaft angle, 10-15° anteversion) + greater & lesser trochanters",
    "Blood supply to head: medial > lateral circumflex femoral aa. Disruption → AVN",
    "Cancellous bone: head / neck / intertrochanteric region. Cortical bone: shaft. Mixed: metaphysis",
    "Linea aspera (posterior crest): major muscle attachment line for adductors, quadriceps, hamstrings",
    "Nutrient foramen: posterior mid-shaft near linea aspera — 'flees the knee' (opens distally)",
    "Distal femur: medial & lateral condyles (knee articulation) + epicondyles + intercondylar fossa (ACL/PCL)",
    "Femoral nerve (L2-L4): anterior compartment — quadriceps. Sciatic nerve (L4-S3): posterior compartment — hamstrings",
    "Profunda femoris (deep femoral a.) = main vascular supply to femoral shaft",
    "Coxa valga (>135°) vs coxa vara (<120°). Anteversion >15° = in-toeing gait in children",
    "Fracture risk: neck (osteoporosis/elderly), shaft (high-energy), atypical shaft (bisphosphonates)",
    "Hip dislocation (posterior) risks sciatic nerve. Femoral neck fracture risks AVN + non-union",
  ];

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// ─── WRITE FILE ──────────────────────────────────────────────────────────────
pres.writeFile({ fileName: "/home/daytona/workspace/femur-anatomy/Femur_Bone_Anatomy.pptx" })
  .then(() => console.log("DONE: /home/daytona/workspace/femur-anatomy/Femur_Bone_Anatomy.pptx"))
  .catch(err => { console.error("FAILED:", err); process.exit(1); });

cd /home/daytona/workspace/femur-anatomy && node build.js 2>&1

~/femur-anatomy/build.js

Successfully replaced 1 instance(s) of the string in '/home/daytona/workspace/femur-anatomy/build.js'

cd /home/daytona/workspace/femur-anatomy && node build.js 2>&1

ls -lh /home/daytona/workspace/femur-anatomy/Femur_Bone_Anatomy.pptx